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BV HiZ: add RS-485 pins test

This commit is contained in:
King Kévin 2018-02-14 13:14:32 +01:00
parent 6afccfdb82
commit 6babde53ee
1 changed files with 55 additions and 3 deletions
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58
lib/busvoodoo_hiz.c
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@ -431,7 +431,7 @@ static bool busvoodoo_hiz_test_self(void)
gpio_clear(GPIO(BUSVOODOO_RS485_RE_PORT), GPIO(BUSVOODOO_RS485_RE_PIN)); // enable receiver
gpio_set_mode(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX as output
gpio_set_mode(GPIO(BUSVOODOO_RS485_RX_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS485_RX_PIN)); // set RX as input with pull up/down
// test high signal
// test low signal
gpio_set(GPIO(BUSVOODOO_RS485_RX_PORT), GPIO(BUSVOODOO_RS485_RX_PIN)); // pull RX up
gpio_clear(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX low
sleep_us(100); // let voltage settle
@ -443,7 +443,7 @@ static bool busvoodoo_hiz_test_self(void)
goto error;
#endif
}
// test low signal
// test high signal
gpio_clear(GPIO(BUSVOODOO_RS485_RX_PORT), GPIO(BUSVOODOO_RS485_RX_PIN)); // pull RX down
gpio_set(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX high
sleep_us(100); // let voltage settle
@ -607,7 +607,7 @@ static bool busvoodoo_hiz_test_pins(void)
dac_disable(BUSVOODOO_HVCTL_CHANNEL); // disable HV control
sleep_ms(100); // wait for voltage to settle (and debounce)
if (busvoodoo_vreg_get(BUSVOODOO_LV_CHANNEL)>0.2) {
printf(lv_high);
printf("HV output is high while voltage regulator should be switched off\n");
#if DEBUG
while (true);
#else
@ -615,6 +615,58 @@ static bool busvoodoo_hiz_test_pins(void)
#endif
}
// test RS-485 port pin A
gpio_set(GPIO(BUSVOODOO_RS485_DE_PORT), GPIO(BUSVOODOO_RS485_DE_PIN)); // enable transmitter
gpio_set_mode(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX as output
gpio_set(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX high -> A will be high
printf("%sRS/CAN pin 3\n", lv_to);
led_red(); // notify user to perform action
do {
sleep_ms(100); // wait for user to make connection
} while (busvoodoo_vreg_get(BUSVOODOO_LV_CHANNEL)<2.0 && !user_input_available); // wait until pin is connected
led_blue(); // notify user test is running
if (user_input_available) { // user interruption
goto error;
}
gpio_clear(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX low
sleep_ms(100); // wait for voltage to settle (and debounce)
if (busvoodoo_vreg_get(BUSVOODOO_LV_CHANNEL)>1.0) {
printf("RS-485 output A is high while it should be low\n");
#if DEBUG
while (true);
#else
goto error;
#endif
}
gpio_clear(GPIO(BUSVOODOO_RS485_DE_PORT), GPIO(BUSVOODOO_RS485_DE_PIN)); // set low to disable transmitter
gpio_set_mode(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS485_TX_PIN)); // set pin to floating
// test RS-485 port pin B
gpio_set(GPIO(BUSVOODOO_RS485_DE_PORT), GPIO(BUSVOODOO_RS485_DE_PIN)); // enable transmitter
gpio_set_mode(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO_MODE_OUTPUT_2_MHZ, GPIO_CNF_OUTPUT_PUSHPULL, GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX as output
gpio_clear(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX low -> B will be high
printf("%sRS/CAN pin 4\n", lv_to);
led_red(); // notify user to perform action
do {
sleep_ms(100); // wait for user to make connection
} while (busvoodoo_vreg_get(BUSVOODOO_LV_CHANNEL)<2.0 && !user_input_available); // wait until pin is connected
led_blue(); // notify user test is running
if (user_input_available) { // user interruption
goto error;
}
gpio_set(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO(BUSVOODOO_RS485_TX_PIN)); // set TX high
sleep_ms(100); // wait for voltage to settle (and debounce)
if (busvoodoo_vreg_get(BUSVOODOO_LV_CHANNEL)>1.0) {
printf("RS-485 output B is high while it should be low\n");
#if DEBUG
while (true);
#else
goto error;
#endif
}
gpio_clear(GPIO(BUSVOODOO_RS485_DE_PORT), GPIO(BUSVOODOO_RS485_DE_PIN)); // set low to disable transmitter
gpio_set_mode(GPIO(BUSVOODOO_RS485_TX_PORT), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, GPIO(BUSVOODOO_RS485_TX_PIN)); // set pin to floating
// 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