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BV SPI: add LED activity indication

This commit is contained in:
King Kévin 2018-03-22 12:09:56 +01:00
parent ad4c9e06dd
commit 93c8494b31
1 changed files with 4 additions and 1 deletions
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5
lib/busvoodoo_spi.c
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@ -238,7 +238,7 @@ static bool busvoodoo_spi_setup(char** prefix, const char* line)
spi_enable(SPI(BUSVOODOO_SPI_ID)); // enable SPI
if (!busvoodoo_spi_drive && busvoodoo_spi_pullup) {
busvoodoo_embedded_pullup(true); // set embedded pull-ups
printf("use LV to set voltage\n");
printf("use LV to set pull-up voltage\n");
}
led_off(); // disable LED because there is no activity
busvoodoo_spi_setting = BUSVOODOO_SPI_SETTING_NONE; // restart settings next time
@ -274,10 +274,12 @@ static void busvoodoo_spi_write(uint16_t value)
} else {
printf("write: 0x%04x\n", value);
}
busvoodoo_led_red_pulse(BUSVOODOO_LED_PULSE); // pulse red LED to show we are writing
while (!(SPI_SR(SPI(BUSVOODOO_SPI_ID))&SPI_SR_TXE)); // wait until Tx is empty
(void)SPI_DR(SPI(BUSVOODOO_SPI_ID)); // clear RXNE flag by reading previously received data
spi_send(SPI(BUSVOODOO_SPI_ID), value); // send data
if (busvoodoo_spi_duplex) {
busvoodoo_led_blue_pulse(BUSVOODOO_LED_PULSE); // pulse blue LED to show we read data
value = spi_read(SPI(BUSVOODOO_SPI_ID)); // read data
if (8==busvoodoo_spi_databits) {
printf("read: 0x%02x\n", (uint8_t)value);
@ -294,6 +296,7 @@ static void busvoodoo_spi_read(void)
if (busvoodoo_spi_duplex) { // in full duplex mode
busvoodoo_spi_write(0xffff); // send any value in order to read
} else { // unidirectional mode
busvoodoo_led_red_pulse(BUSVOODOO_LED_PULSE); // pulse blue LED to show we are reading
gpio_set_mode(SPI_MOSI_PORT(BUSVOODOO_SPI_ID), GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, SPI_MOSI_PIN(BUSVOODOO_SPI_ID)); // set MOSI as input
while (!(SPI_SR(SPI(BUSVOODOO_SPI_ID))&SPI_SR_TXE)); // wait until Tx is empty
(void)SPI_DR(SPI(BUSVOODOO_SPI_ID)); // clear RXNE flag by reading previously received data