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application: add signal pins

This commit is contained in:
King Kévin 2021-03-11 11:19:03 +01:00
parent 95e727203c
commit 1bcbf3fd5f
1 changed files with 13 additions and 0 deletions
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13
application.c
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@ -65,6 +65,12 @@ const uint8_t channels[] = {ADC_CHANNEL17, ADC_CHANNEL(TARGET_CHANNEL), ADC_CHAN
#define MUX_S2_PIN PB0 /**< pin to set S2 bit of analog multiplexer */
#define MUX_S3_PIN PB1 /**< pin to set S3 bit of analog multiplexer */
#define SIGNAL_NUMBERS 12 /**< number of target signals */
static const char* signal_names[] = {"B12", "B13", "B14", "B15", "A8 ", "A9 ", "A10", "A15", "B3 ", "B4 ", "B5 ", "B6 "}; /**< names of pin connected to target signals */
static const uint32_t signal_rccs[] = {GPIO_RCC(PB12), GPIO_RCC(PB13), GPIO_RCC(PB14), GPIO_RCC(PB15), GPIO_RCC(PA8), GPIO_RCC(PA9), GPIO_RCC(PA10), GPIO_RCC(PA15), GPIO_RCC(PB3), GPIO_RCC(PB4), GPIO_RCC(PB5), GPIO_RCC(PB6)}; /**< RCC for signal pin ports */
static const uint32_t signal_ports[] = {GPIO_PORT(PB12), GPIO_PORT(PB13), GPIO_PORT(PB14), GPIO_PORT(PB15), GPIO_PORT(PA8), GPIO_PORT(PA9), GPIO_PORT(PA10), GPIO_PORT(PA15), GPIO_PORT(PB3), GPIO_PORT(PB4), GPIO_PORT(PB5), GPIO_PORT(PB6)}; /**< GPIO ports for signal pin */
static const uint32_t signal_pins[] = {GPIO_PIN(PB12), GPIO_PIN(PB13), GPIO_PIN(PB14), GPIO_PIN(PB15), GPIO_PIN(PA8), GPIO_PIN(PA9), GPIO_PIN(PA10), GPIO_PIN(PA15), GPIO_PIN(PB3), GPIO_PIN(PB4), GPIO_PIN(PB5), GPIO_PIN(PB6)}; /**< GPIO pins for signal pin */
size_t putc(char c)
{
size_t length = 0; // number of characters printed
@ -646,6 +652,13 @@ void main(void)
mux_select(-1); // ensure it is disabled
puts("OK\n");
puts("setup signal pins: ");
for (uint8_t i = 0; i < SIGNAL_NUMBERS; i++) {
rcc_periph_clock_enable(signal_rccs[i]); // enable clock for port domain
gpio_mode_setup(signal_ports[i], GPIO_MODE_INPUT, GPIO_PUPD_NONE, signal_pins[i]); // ensure pin is floating input
}
puts("OK\n");
puts("setup ADC to measure voltages: ");
rcc_periph_clock_enable(RCC_ADC1); // enable clock for ADC domain
adc_power_off(ADC1); // switch off ADC while configuring it