705 lines
29 KiB
C
705 lines
29 KiB
C
/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/** BusVoodoo high impedance (HiZ) default mode (code)
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* @file busvoodoo_hiz.c
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* @author King Kévin <kingkevin@cuvoodoo.info>
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* @date 2018
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*/
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/* standard libraries */
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#include <stdint.h> // standard integer types
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#include <math.h> // math utilities
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/* STM32 (including CM3) libraries */
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#include <libopencm3/stm32/gpio.h> // general purpose input output library
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#include <libopencm3/stm32/rcc.h> // real-time control clock library
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#include <libopencm3/stm32/dbgmcu.h> // debug utilities
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#include <libopencm3/stm32/desig.h> // design utilities
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#include <libopencm3/stm32/dac.h> // DAC utilities
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/* own libraries */
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#include "global.h" // board definitions
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#include "print.h" // printing utilities
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#include "menu.h" // menu definitions
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#include "busvoodoo_global.h" // BusVoodoo definitions
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#include "busvoodoo_hiz.h" // own definitions
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#define BUSVOODOO_XV_DEFAULT (0.8*(1+30.0/10.0)) /**< default (when not driven) xV voltage regulator output voltage based on R1 and R2 */
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#define BUSVOODOO_XV_TEST 2.5 /**< target xV output voltage to test if we can set control the xV voltage regulator */
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#define BUSVOODOO_12V_DEFAULT (1.25*(1+100.0/10.0)) /**< default (when not driven) 12V voltage regulator output voltage based on R1 and R2 */
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#define BUSVOODOO_12V_TEST 12.0 /**< target 12V output voltage to test if we can set control the 12V voltage regulator */
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/** setup HiZ mode
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* @param[out] prefix terminal prompt prefix
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* @param[in] line terminal prompt line to configure mode
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* @return if setup is complete
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*/
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static bool busvoodoo_hiz_setup(char** prefix, const char* line)
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{
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(void)line; // no configuration is required
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*prefix = "HiZ"; // set command line prefix
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led_blink(0, 1); // switch blue LED on to show we are ready
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return true;
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}
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/** exit HiZ mode
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*/
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static void busvoodoo_hiz_exit(void)
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{
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// there is nothing to do
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}
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/** perform self tests
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* @return if self tests passed
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*/
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static bool busvoodoo_hiz_test_self(void)
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{
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bool to_return = false; // success of the self-test
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busvoodoo_safe_state(); // start from a safe state
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// get device information
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// get device identifier (DEV_ID)
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// 0x412: low-density, 16-32 kB flash
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// 0x410: medium-density, 64-128 kB flash
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// 0x414: high-density, 256-512 kB flash
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// 0x430: XL-density, 768-1024 kB flash
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// 0x418: connectivity
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if (0==(DBGMCU_IDCODE&DBGMCU_IDCODE_DEV_ID_MASK)) {
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printf("device identifier not set: this is probably a defective micro-controller\n");
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} else if (0x414!=(DBGMCU_IDCODE&DBGMCU_IDCODE_DEV_ID_MASK)) {
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printf("this (DEV_ID=%03x) is not a high-density device: a wrong micro-controller might have been used\n", (DBGMCU_IDCODE&DBGMCU_IDCODE_DEV_ID_MASK));
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}
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// ensure flash size is ok
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if (0xffff==DESIG_FLASH_SIZE) {
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printf("unknown flash size: this is probably a defective micro-controller\n");
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}
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// check 5V power rail
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float voltage = busvoodoo_vreg_get(BUSVOODOO_5V_CHANNEL); // get 5V power rail voltage
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if (voltage<4.0) {
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printf("5V power rail voltage is too low: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>5.5) {
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printf("5V power rail voltage is too high: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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// check 3.3V power rail
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voltage = busvoodoo_vreg_get(BUSVOODOO_3V3_CHANNEL); // get 3.3V power rail voltage
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if (voltage<3.0) {
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printf("3.3V power rail voltage is too low: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>3.6) {
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printf("3.3V power rail voltage is too high: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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// test 5V and 3.3V outputs
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busvoodoo_vout_switch(true); // enable Vout
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voltage = busvoodoo_vreg_get(BUSVOODOO_5V_CHANNEL); // get 5V power rail voltage
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if (voltage<4.0) {
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printf("5V power rail voltage is too low when 5V output is enabled: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>5.5) {
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printf("5V power rail voltage is too high when 5V output is enabled: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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voltage = busvoodoo_vreg_get(BUSVOODOO_3V3_CHANNEL); // get 3.3V power rail voltage
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if (voltage<3.0) {
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printf("3.3V power rail voltage is too low when 3V3 output is enabled: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>3.6) {
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printf("3.3V power rail voltage is too high when 3V3 is enabled: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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busvoodoo_vout_switch(false); // disable Vout
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// check xV voltage regulator
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voltage = busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, 0); // disable xV voltage regulator
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if (voltage>0.2) { // ensure the output is at 0V when the regulator is not enabled
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printf("xV voltage is %.2fV instead of 0V when the regulator is disabled\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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gpio_set(GPIO(BUSVOODOO_XVEN_PORT), GPIO(BUSVOODOO_XVEN_PIN)); // enable xV voltage regulator
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sleep_ms(5); // let the voltage regulator start and voltage settle
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voltage = busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL); // get xV voltage
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// without being driven it should be around the default voltage
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if (voltage<BUSVOODOO_XV_DEFAULT-0.2) {
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printf("xV voltage is lower (%.2fV) than expected (%.2fV) when the regulator is enabled\n", voltage, BUSVOODOO_XV_DEFAULT);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>BUSVOODOO_XV_DEFAULT+0.2) {
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printf("xV voltage is higher (%.2fV) than expected (%.2fV) when the regulator is enabled\n", voltage, BUSVOODOO_XV_DEFAULT);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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// check if we can control xV
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voltage = busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, BUSVOODOO_XV_TEST); // get xV voltage
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if (voltage<BUSVOODOO_XV_TEST-0.2) {
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printf("xV voltage is lower (%.2fV) than set (%.2fV)\n", voltage, BUSVOODOO_XV_TEST);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>BUSVOODOO_XV_TEST+0.2) {
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printf("xV voltage is highed (%.2fV) than set (%.2fV)\n", voltage, BUSVOODOO_XV_TEST);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, 0); // disable xV voltage regulator
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// check 12V voltage regulator
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if (busvoodoo_full) {
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voltage = busvoodoo_vreg_set(BUSVOODOO_12V_CHANNEL, 0); // disable 12V voltage regulator
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if (voltage>0.2) { // ensure the output is at 0V when the regulator is not enabled
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printf("12V voltage is %.2fV instead of 0V when the regulator is disabled\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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gpio_clear(GPIO(BUSVOODOO_12VEN_PORT), GPIO(BUSVOODOO_12VEN_PIN)); // enable 12V voltage regulator
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sleep_ms(10); // let the voltage regulator start and voltage settle
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voltage = busvoodoo_vreg_get(BUSVOODOO_12V_CHANNEL); // get 12V voltage
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// without being driven it should be around the default voltage
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if (voltage<BUSVOODOO_12V_DEFAULT-0.3) {
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printf("12V voltage is lower (%.2fV) than expected (%.2fV) when regulator is enabled\n", voltage, BUSVOODOO_12V_DEFAULT);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>BUSVOODOO_12V_DEFAULT+0.3) {
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printf("12V voltage is higher (%.2fV) than expected (%.2fV) when regulator is enabled\n", voltage, BUSVOODOO_12V_DEFAULT);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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// check if we can control 12V voltage regulator
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voltage = busvoodoo_vreg_set(BUSVOODOO_12V_CHANNEL, BUSVOODOO_12V_TEST); // set voltage on 12V voltage regulator
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if (voltage<BUSVOODOO_12V_TEST-0.3) {
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printf("12V voltage is lower (%.2fV) than set (%.2fV)\n", voltage, BUSVOODOO_12V_TEST);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>BUSVOODOO_12V_TEST+0.3) {
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printf("12V voltage is higher (%.2fV) than set (%.2fV)\n", voltage, BUSVOODOO_12V_TEST);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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voltage = busvoodoo_vreg_set(BUSVOODOO_12V_CHANNEL, 0); // disable 12V voltage regulator
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}
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// pull all pins down and ensure they are low
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins); pin++) {
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gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin]); // set pin to input
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gpio_clear(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // pull down so it's not floating
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}
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins) && pin<LENGTH(busvoodoo_io_names); pin++) {
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if (gpio_get(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin])) { // ensure it really is low
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printf("signal %s is high although it is pulled low (internal)\n", busvoodoo_io_names[pin]); // warn user about the error
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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}
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// pull all pins up and ensure they are high
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins); pin++) {
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gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin]); // set pin to input
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gpio_set(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // pull up using internal pull-up
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}
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins) && pin<LENGTH(busvoodoo_io_names); pin++) {
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if (!gpio_get(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin])) { // ensure it really is high
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printf("signal %s is low although it is pulled up (internal)\n", busvoodoo_io_names[pin]); // warn user about the error
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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}
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// set individual pin high and ensure only pins in the same group are at the same level
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins); pin++) {
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gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin]); // set pin to input
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gpio_clear(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // pull down to ensure it is not high by accident
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}
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for (uint8_t pin1=0; pin1<LENGTH(busvoodoo_io_ports) && pin1<LENGTH(busvoodoo_io_pins) && pin1<LENGTH(busvoodoo_io_groups) && pin1<LENGTH(busvoodoo_io_names); pin1++) {
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gpio_set_mode(busvoodoo_io_ports[pin1], GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, busvoodoo_io_pins[pin1]); // set button pin to output
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gpio_set(busvoodoo_io_ports[pin1], busvoodoo_io_pins[pin1]); // set pin high
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for (uint8_t pin2=0; pin2<LENGTH(busvoodoo_io_ports) && pin2<LENGTH(busvoodoo_io_pins) && pin2<LENGTH(busvoodoo_io_groups) && pin2<LENGTH(busvoodoo_io_names); pin2++) {
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if (busvoodoo_io_groups[pin1]==busvoodoo_io_groups[pin2] && !gpio_get(busvoodoo_io_ports[pin2], busvoodoo_io_pins[pin2])) {
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printf("signal %s of I/O-%u is low while it should be set high by signal %s of I/O-%u\n", busvoodoo_io_names[pin2], busvoodoo_io_groups[pin2], busvoodoo_io_names[pin1], busvoodoo_io_groups[pin1]); // warn user about the error
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (busvoodoo_io_groups[pin1]!=busvoodoo_io_groups[pin2] && gpio_get(busvoodoo_io_ports[pin2], busvoodoo_io_pins[pin2])) {
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printf("signal %s of I/O-%u is high while it should not be set high by signal %s of I/O-%u\n", busvoodoo_io_names[pin2], busvoodoo_io_groups[pin2], busvoodoo_io_names[pin1], busvoodoo_io_groups[pin1]); // warn user about the error
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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}
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gpio_set_mode(busvoodoo_io_ports[pin1], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin1]); // set pin back to input
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gpio_clear(busvoodoo_io_ports[pin1], busvoodoo_io_pins[pin1]); // pull pin back down
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}
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// set individual pin low and ensure only pins in the same group are at the same level
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins); pin++) {
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gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin]); // set pin to input
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gpio_set(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // pull up to ensure it is not low by accident
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}
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for (uint8_t pin1=0; pin1<LENGTH(busvoodoo_io_ports) && pin1<LENGTH(busvoodoo_io_pins) && pin1<LENGTH(busvoodoo_io_groups) && pin1<LENGTH(busvoodoo_io_names); pin1++) {
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gpio_set_mode(busvoodoo_io_ports[pin1], GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, busvoodoo_io_pins[pin1]); // set button pin to output
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gpio_clear(busvoodoo_io_ports[pin1], busvoodoo_io_pins[pin1]); // set pin low
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for (uint8_t pin2=0; pin2<LENGTH(busvoodoo_io_ports) && pin2<LENGTH(busvoodoo_io_pins) && pin2<LENGTH(busvoodoo_io_groups) && pin2<LENGTH(busvoodoo_io_names); pin2++) {
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if (busvoodoo_io_groups[pin1]==busvoodoo_io_groups[pin2] && gpio_get(busvoodoo_io_ports[pin2], busvoodoo_io_pins[pin2])) {
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printf("signal %s of I/O-%u is high while it should be set low by signal %s of I/O-%u\n", busvoodoo_io_names[pin2], busvoodoo_io_groups[pin2], busvoodoo_io_names[pin1], busvoodoo_io_groups[pin1]); // warn user about the error
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (busvoodoo_io_groups[pin1]!=busvoodoo_io_groups[pin2] && !gpio_get(busvoodoo_io_ports[pin2], busvoodoo_io_pins[pin2])) {
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printf("signal %s of I/O-%u is low while it should not be set low by signal %s of I/O-%u\n", busvoodoo_io_names[pin2], busvoodoo_io_groups[pin2], busvoodoo_io_names[pin1], busvoodoo_io_groups[pin1]); // warn user about the error
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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}
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gpio_set_mode(busvoodoo_io_ports[pin1], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin1]); // set pin back to input
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gpio_set(busvoodoo_io_ports[pin1], busvoodoo_io_pins[pin1]); // pull pin back up
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}
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// test 5V pull-up
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins); pin++) {
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gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin]); // set pin to input
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gpio_clear(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // pull down to ensure it is not high by accident
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}
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busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, 5.0); // set xV voltage regulator to use the 5.0V power rail
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voltage = busvoodoo_embedded_pullup(true); // enable 5V pull-up
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if (voltage<4.0) {
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printf("5V power rail voltage is too low when used to pull up: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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} else if (voltage>5.5) {
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printf("5V power rail voltage is too high when used to pull up: %.2fV\n", voltage);
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#if DEBUG
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while (true);
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#else
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goto error;
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#endif
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}
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for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins) && pin<LENGTH(busvoodoo_io_names); pin++) {
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if (!gpio_get(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin])) { // ensure it really is high
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printf("signal %s is low although it is pulled up by 5V (embedded)\n", busvoodoo_io_names[pin]); // warn user about the error
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
}
|
|
busvoodoo_embedded_pullup(false); // disable pull-ups
|
|
voltage = busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, 0); // disable xV voltage regulator
|
|
|
|
// test xV pull-up set to 3.3V
|
|
for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins); pin++) {
|
|
gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, busvoodoo_io_pins[pin]); // set pin to input
|
|
gpio_clear(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // pull down to ensure it is not high by accident
|
|
}
|
|
busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, 3.3); // set xV voltage regulator
|
|
voltage = busvoodoo_embedded_pullup(3.3); // enable pull-up with adjustable regulator
|
|
if (voltage<BUSVOODOO_XV_DEFAULT-0.2) {
|
|
printf("xV voltage is lower (%.2fV) than expected (%.2fV) when used to pull up\n", voltage, BUSVOODOO_XV_DEFAULT);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
} else if (voltage>BUSVOODOO_XV_DEFAULT+0.2) {
|
|
printf("xV voltage is higher (%.2fV) than expected (%.2fV) when used to pull up\n", voltage, BUSVOODOO_XV_DEFAULT);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins) && pin<LENGTH(busvoodoo_io_names); pin++) {
|
|
if (!gpio_get(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin])) { // ensure it really is high
|
|
printf("signal %s is low although it is pulled up by xV (embedded)\n", busvoodoo_io_names[pin]); // warn user about the error
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
}
|
|
busvoodoo_vreg_set(BUSVOODOO_XV_CHANNEL, 0); // disable xV voltage regulator
|
|
busvoodoo_embedded_pullup(false); // disable pull-ups
|
|
|
|
to_return = true; // all tests are successful
|
|
#if DEBUG
|
|
#else
|
|
error:
|
|
#endif
|
|
busvoodoo_safe_state(); // set back to safe state
|
|
if (!to_return) {
|
|
printf("the test procedure has been aborted for safety reasons\n");
|
|
}
|
|
|
|
return to_return;
|
|
}
|
|
|
|
/** test if signals are soldered correctly to the connector pins
|
|
* @return if pin test passed
|
|
*/
|
|
static bool busvoodoo_hiz_test_pins(void)
|
|
{
|
|
bool to_return = false; // test result to return
|
|
busvoodoo_safe_state(); // start from safe state with all outputs switched off
|
|
|
|
const char* xv_to = "connect I/O pin 4 to "; // most outputs will be tested using xV ADC
|
|
const char* xv_high = "pin 4 is high while it should be low, other pin might be defective\n"; // error message if expect low output is high
|
|
|
|
// test GND on pin 1 by shorting xV_CTL to ground (through 40k resistor) and measure short
|
|
gpio_set(GPIO(BUSVOODOO_XVCTL_PORT), GPIO(BUSVOODOO_XVCTL_PIN)); // set pin high
|
|
gpio_set_mode(GPIO(BUSVOODOO_XVCTL_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_XVCTL_PIN)); // set xV control pin as output
|
|
printf("%sI/O pin 1\n", xv_to);
|
|
while (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>0.2) { // wait until pin is shorted to ground
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_clear(GPIO(BUSVOODOO_XVCTL_PORT), GPIO(BUSVOODOO_XVCTL_PIN)); // set pin low
|
|
gpio_set_mode(GPIO(BUSVOODOO_XVCTL_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_XVCTL_PIN)); // set xV control pin as output
|
|
led_toggle(); // notify user test is almost almost
|
|
sleep_ms(200); // wait for voltage to settle an debounce
|
|
if (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>0.2) {
|
|
printf(xv_high);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
gpio_set_mode(GPIO(BUSVOODOO_XVCTL_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO(BUSVOODOO_XVCTL_PIN)); // set xV control pin back to analog input for DAC
|
|
led_toggle(); // notify user test is complete
|
|
|
|
// test 5V output on pin 2
|
|
gpio_clear(GPIO(BUSVOODOO_VOUTEN_PORT), GPIO(BUSVOODOO_VOUTEN_PIN)); // enable Vout
|
|
printf("%sI/O pin 2\n", xv_to);
|
|
while (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)<0.2) { // wait until pin is connected
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_set(GPIO(BUSVOODOO_VOUTEN_PORT), GPIO(BUSVOODOO_VOUTEN_PIN)); // disable Vout
|
|
led_toggle(); // notify user test is almost complete
|
|
sleep_ms(200); // wait for voltage to settle and debounce
|
|
if (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>0.2) {
|
|
printf(xv_high);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
led_toggle(); // notify user test is complete
|
|
|
|
// test 3.3V output on pin 3
|
|
gpio_clear(GPIO(BUSVOODOO_VOUTEN_PORT), GPIO(BUSVOODOO_VOUTEN_PIN)); // enable Vout
|
|
printf("%sI/O pin 3\n", xv_to);
|
|
while (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)<0.2 || busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>3.5) { // wait until pin is connected
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_set(GPIO(BUSVOODOO_VOUTEN_PORT), GPIO(BUSVOODOO_VOUTEN_PIN)); // disable Vout
|
|
led_toggle(); // notify user test is almost complete
|
|
sleep_ms(200); // wait for voltage to settle and debounce
|
|
if (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>0.2) {
|
|
printf(xv_high);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
led_toggle(); // notify user test is complete
|
|
|
|
// test I/O pins
|
|
for (uint8_t io=1; io<=6; io++) { // test each I/O pin
|
|
for (uint8_t pin=0; pin<LENGTH(busvoodoo_io_ports) && pin<LENGTH(busvoodoo_io_pins) && pin<LENGTH(busvoodoo_io_groups); pin++) { // look for a pin mapped on this I/O
|
|
if (busvoodoo_io_groups[pin]==io) {
|
|
gpio_set(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // set pin high
|
|
gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, busvoodoo_io_pins[pin]); // set pin to output
|
|
printf("%sI/O pin %u\n", xv_to, io+4);
|
|
while (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)<0.2) { // wait until pin is connected
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_clear(busvoodoo_io_ports[pin], busvoodoo_io_pins[pin]); // set pin low
|
|
led_toggle(); // notify user test is almost complete
|
|
sleep_ms(200); // wait for voltage to settle and debounce
|
|
if (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>0.2) {
|
|
printf(xv_high);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
gpio_set_mode(busvoodoo_io_ports[pin], GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, busvoodoo_io_pins[pin]); // set pin back to input
|
|
led_toggle(); // notify user test is complete
|
|
break; // stop looking for pin
|
|
}
|
|
}
|
|
}
|
|
|
|
if (busvoodoo_full) {
|
|
// test 12V output on RS/CAN pin 1
|
|
double voltage = busvoodoo_vreg_get(BUSVOODOO_3V3_CHANNEL); // get reference voltage
|
|
uint16_t dac_set = BUSVOODOO_12V_SET(5.0)/voltage*4095; // DAC value corresponding to the voltage
|
|
dac_load_data_buffer_single(dac_set, RIGHT12, BUSVOODOO_12VCTL_CHANNEL); // set output so the voltage regulator is set to desired output voltage
|
|
dac_software_trigger(BUSVOODOO_12VCTL_CHANNEL); // transfer the value to the DAC
|
|
dac_enable(BUSVOODOO_12VCTL_CHANNEL); // enable DAC
|
|
gpio_clear(GPIO(BUSVOODOO_12VEN_PORT), GPIO(BUSVOODOO_12VEN_PIN)); // enable 12V voltage regulator
|
|
printf("%sRS/CAN pin 1\n", xv_to);
|
|
while (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)<0.2) { // wait until pin is connected
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_set(GPIO(BUSVOODOO_12VEN_PORT), GPIO(BUSVOODOO_12VEN_PIN)); // disable 12V voltage regulator
|
|
dac_disable(BUSVOODOO_12VCTL_CHANNEL); // disable 12V control
|
|
led_toggle(); // notify user test is almost complete
|
|
sleep_ms(200); // wait for voltage to settle (and debounce)
|
|
if (busvoodoo_vreg_get(BUSVOODOO_XV_CHANNEL)>0.2) {
|
|
printf(xv_high);
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
led_toggle(); // notify user test is complete
|
|
|
|
// test RS-232 port (with itself)
|
|
rcc_periph_clock_enable(RCC_GPIO(BUSVOODOO_RS232_EN_PORT)); // enable clock for GPIO domain
|
|
gpio_clear(GPIO(BUSVOODOO_RS232_EN_PORT), GPIO(BUSVOODOO_RS232_EN_PIN)); // set low to enable receiver
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_EN_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_OPENDRAIN, GPIO(BUSVOODOO_RS232_EN_PIN)); // set pin as output (open-drain pulled high to disable receiver)
|
|
rcc_periph_clock_enable(RCC_GPIO(BUSVOODOO_RS232_SHDN_PORT)); // enable clock for GPIO domain
|
|
gpio_set(GPIO(BUSVOODOO_RS232_SHDN_PORT), GPIO(BUSVOODOO_RS232_SHDN_PIN)); // set high to enable transmitter
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_SHDN_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_RS232_SHDN_PIN)); // set pin as output (push-pull pulled low to disable transmitter)
|
|
rcc_periph_clock_enable(RCC_GPIO(BUSVOODOO_RS232_TX_PORT)); // enable clock for GPIO
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_TX_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_RS232_TX_PIN)); // set pin as output (push-pull)
|
|
rcc_periph_clock_enable(RCC_GPIO(BUSVOODOO_RS232_RX_PORT)); // enable clock for GPIO
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_RX_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO(BUSVOODOO_RS232_RX_PIN)); // set pin as input (with pull resistors)
|
|
// start by setting low since unconnected (pulled to ground by 3 kO) is considered as high
|
|
gpio_clear(GPIO(BUSVOODOO_RS232_TX_PORT), GPIO(BUSVOODOO_RS232_TX_PIN)); // set low
|
|
gpio_set(GPIO(BUSVOODOO_RS232_RX_PORT), GPIO(BUSVOODOO_RS232_RX_PIN)); // pull high to avoid false negative
|
|
sleep_ms(5);
|
|
printf("connect RS/CAN pin 2 to RS/CAN pin 3\n");
|
|
while (gpio_get(GPIO(BUSVOODOO_RS232_RX_PORT), GPIO(BUSVOODOO_RS232_RX_PIN))) { // wait until pin is connected
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_set(GPIO(BUSVOODOO_RS232_TX_PORT), GPIO(BUSVOODOO_RS232_TX_PIN)); // set high
|
|
gpio_clear(GPIO(BUSVOODOO_RS232_RX_PORT), GPIO(BUSVOODOO_RS232_RX_PIN)); // pull low to avoid false negative
|
|
led_toggle(); // notify user test is almost complete
|
|
sleep_ms(200); // wait for voltage to settle and debounce
|
|
if (!gpio_get(GPIO(BUSVOODOO_RS232_RX_PORT), GPIO(BUSVOODOO_RS232_RX_PIN))) { // check if RX is set low by TX
|
|
printf("CAN/RS pin 2 is high while it should be set low by pin 3\n");
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_TX_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS232_TX_PIN)); // free pin
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_RX_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS232_RX_PIN)); // free pin
|
|
led_toggle(); // notify user test is complete
|
|
|
|
rcc_periph_clock_enable(RCC_GPIO(BUSVOODOO_RS232_RTS_PORT)); // enable clock for GPIO
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_RTS_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_RS232_RTS_PIN)); // set pin as output (push-pull)
|
|
rcc_periph_clock_enable(RCC_GPIO(BUSVOODOO_RS232_CTS_PORT)); // enable clock for GPIO
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_CTS_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO(BUSVOODOO_RS232_CTS_PIN)); // set pin as input (with pull resistors)
|
|
// start by setting low since unconnected (pulled to ground by 3 kO) is considered as high
|
|
gpio_clear(GPIO(BUSVOODOO_RS232_RTS_PORT), GPIO(BUSVOODOO_RS232_RTS_PIN)); // set low
|
|
gpio_set(GPIO(BUSVOODOO_RS232_CTS_PORT), GPIO(BUSVOODOO_RS232_CTS_PIN)); // pull high to avoid false negative
|
|
printf("connect RS/CAN pin 4 to RS/CAN pin 5\n");
|
|
while (gpio_get(GPIO(BUSVOODOO_RS232_CTS_PORT), GPIO(BUSVOODOO_RS232_CTS_PIN))) { // wait until pin is connected
|
|
sleep_ms(200); // wait for user to make connection
|
|
}
|
|
gpio_set(GPIO(BUSVOODOO_RS232_RTS_PORT), GPIO(BUSVOODOO_RS232_RTS_PIN)); // set high
|
|
gpio_clear(GPIO(BUSVOODOO_RS232_CTS_PORT), GPIO(BUSVOODOO_RS232_CTS_PIN)); // pull low to avoid false negative
|
|
led_toggle(); // notify user test is almost complete
|
|
sleep_ms(200); // wait for voltage to settle an debounce
|
|
if (!gpio_get(GPIO(BUSVOODOO_RS232_CTS_PORT), GPIO(BUSVOODOO_RS232_CTS_PIN))) { // check if CTS is set high by RTS
|
|
printf("CAN/RS pin 5 is high while it should be set low by pin 4\n");
|
|
#if DEBUG
|
|
while (true);
|
|
#else
|
|
goto error;
|
|
#endif
|
|
}
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_RTS_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS232_RTS_PIN)); // free pin
|
|
gpio_set_mode(GPIO(BUSVOODOO_RS232_CTS_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS232_CTS_PIN)); // free pin
|
|
led_toggle(); // notify user test is complete
|
|
|
|
gpio_set(GPIO(BUSVOODOO_RS232_EN_PORT), GPIO(BUSVOODOO_RS232_EN_PIN)); // set high to disable receiver
|
|
gpio_clear(GPIO(BUSVOODOO_RS232_SHDN_PORT), GPIO(BUSVOODOO_RS232_SHDN_PIN)); // set low to disable transmitter
|
|
}
|
|
|
|
to_return = true; // all tests passed
|
|
#if DEBUG
|
|
#else
|
|
error:
|
|
#endif
|
|
busvoodoo_safe_state(); // go back to safe state
|
|
if (!to_return) {
|
|
printf("the test procedure has been aborted for safety reasons\n");
|
|
}
|
|
|
|
return to_return;
|
|
}
|
|
|
|
// command handlers
|
|
/** command to perform board self-test
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void busvoodoo_hiz_command_test_self(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
printf("performing self-test\n");
|
|
printf("remove all cables from connectors and press space to start (or any other key to abort)\n");
|
|
if (wait_space()) {
|
|
if (busvoodoo_hiz_test_self()) { // perform self-test
|
|
led_blink(0, 1.0); // show blue OK LED
|
|
printf("self-test succeeded\n"); // notify user
|
|
} else {
|
|
led_blink(0.5, 0.5); // show error on LEDs
|
|
printf("self-test failed\n"); // notify user
|
|
}
|
|
} else {
|
|
printf("self-test aborted\n");
|
|
}
|
|
}
|
|
|
|
/** command to perform pins test
|
|
* @param[in] argument no argument required
|
|
*/
|
|
static void busvoodoo_hiz_command_test_pins(void* argument)
|
|
{
|
|
(void)argument; // we won't use the argument
|
|
printf("performing pins test\n");
|
|
printf("remove all cables from connectors and press space to start (or any other key to abort)\n");
|
|
if (wait_space()) {
|
|
if (busvoodoo_hiz_test_pins()) { // perform pin test
|
|
led_blink(0, 1.0); // show blue OK LED
|
|
printf("pins test succeeded\n"); // notify user
|
|
} else {
|
|
led_blink(0.5, 0.5); // show error on LEDs
|
|
printf("pins test failed\n"); // notify user
|
|
}
|
|
} else {
|
|
printf("pins test aborted\n");
|
|
}
|
|
}
|
|
|
|
static const struct menu_command_t busvoodoo_hiz_commands[] = {
|
|
{
|
|
's',
|
|
"self-test",
|
|
"perform board self-test",
|
|
MENU_ARGUMENT_NONE,
|
|
NULL,
|
|
&busvoodoo_hiz_command_test_self,
|
|
},
|
|
{
|
|
't',
|
|
"pins-test",
|
|
"perform connector pins test",
|
|
MENU_ARGUMENT_NONE,
|
|
NULL,
|
|
&busvoodoo_hiz_command_test_pins,
|
|
},
|
|
};
|
|
|
|
struct busvoodoo_mode_t busvoodoo_hiz_mode = {
|
|
"hiz",
|
|
"High Impedance (Z)",
|
|
&busvoodoo_hiz_setup,
|
|
busvoodoo_hiz_commands,
|
|
LENGTH(busvoodoo_hiz_commands),
|
|
&busvoodoo_hiz_exit,
|
|
};
|