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application: minor, get RCC from port

This commit is contained in:
King Kévin 2021-03-11 14:22:31 +01:00
parent 02e72a8bf9
commit baaa435de8
1 changed files with 37 additions and 2 deletions
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39
application.c
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@ -67,7 +67,6 @@ const uint8_t channels[] = {ADC_CHANNEL17, ADC_CHANNEL(TARGET_CHANNEL), ADC_CHAN
#define CHANNEL_NUMBERS 12 /**< number of target signals */
static const char* channel_names[] = {"B12", "B13", "B14", "B15", "A8 ", "A9 ", "A10", "A15", "B3 ", "B4 ", "B5 ", "B6 "}; /**< names of pin connected to target signals */
static const uint32_t channel_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 channel_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 channel_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 */
@ -111,6 +110,42 @@ static void print_fpu(double fpu, uint8_t precision)
puts(decimal);
}
/** get RCC from corresponding port
* @param[in] port port address
* @return RCC address corresponding to port
*/
static uint32_t port2rcc(uint32_t port)
{
uint32_t rcc = 0;
switch (port) {
case GPIOA:
rcc = RCC_GPIOA;
break;
case GPIOB:
rcc = RCC_GPIOB;
break;
case GPIOC:
rcc = RCC_GPIOC;
break;
case GPIOD:
rcc = RCC_GPIOD;
break;
case GPIOE:
rcc = RCC_GPIOE;
break;
case GPIOF:
rcc = RCC_GPIOF;
break;
case GPIOG:
rcc = RCC_GPIOG;
break;
default: // unknown port
while (true); // halt firmware
break;
}
return rcc;
}
/** measure target and signal voltages
* @return voltages of channels
*/
@ -759,7 +794,7 @@ void main(void)
puts("setup signal pins: ");
for (uint8_t i = 0; i < CHANNEL_NUMBERS; i++) {
rcc_periph_clock_enable(channel_rccs[i]); // enable clock for port domain
rcc_periph_clock_enable(port2rcc(channel_ports[i])); // enable clock for port domain
gpio_mode_setup(channel_ports[i], GPIO_MODE_INPUT, GPIO_PUPD_NONE, channel_pins[i]); // ensure pin is floating input
}
puts("OK\n");