65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
#include <array>
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#include <cstdint>
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#include <cstdio>
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#include "adc.h"
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#include "init.h"
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#include "usbd_cdc_if.h"
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#include "utils.hpp"
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std::array<uint16_t, 3> sampleLightSensors()
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{
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std::array<uint16_t, 3> adcValues;
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HAL_ADC_Start(&hadc);
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util::for_constexpr(
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[&adcValues](const auto& idx) {
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constexpr auto i = idx.value;
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HAL_ADC_PollForConversion(&hadc, HAL_MAX_DELAY);
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adcValues[i] = HAL_ADC_GetValue(&hadc);
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},
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std::make_index_sequence<adcValues.size()>{});
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HAL_ADC_Stop(&hadc);
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return adcValues;
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}
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int main()
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{
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init();
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HAL_GPIO_WritePin(RED_LED_GPIO_Port, RED_LED_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(BLUE_LED_GPIO_Port, BLUE_LED_Pin, GPIO_PIN_RESET);
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HAL_Delay(1000);
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HAL_GPIO_WritePin(RED_LED_GPIO_Port, RED_LED_Pin, GPIO_PIN_SET);
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HAL_GPIO_WritePin(GREEN_LED_GPIO_Port, GREEN_LED_Pin, GPIO_PIN_SET);
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HAL_GPIO_WritePin(BLUE_LED_GPIO_Port, BLUE_LED_Pin, GPIO_PIN_SET);
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while(true) {
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const auto ldrValues = sampleLightSensors();
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HAL_GPIO_WritePin(BLUE_LED_GPIO_Port, BLUE_LED_Pin, GPIO_PIN_RESET);
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std::array<uint8_t, 32> printBuffer;
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for(uint8_t i = 0; i < ldrValues.size(); ++i) {
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const auto bufLen = std::sprintf(reinterpret_cast<char*>(printBuffer.data()), "LDR%d: %hu\r\n%s", i + 1, ldrValues[i], (i == 2) ? "\r\n" : "");
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if(bufLen > 0) {
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while(CDC_Transmit_FS(printBuffer.data(), bufLen) == USBD_BUSY)
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;
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}
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}
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HAL_GPIO_WritePin(BLUE_LED_GPIO_Port, BLUE_LED_Pin, GPIO_PIN_SET);
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HAL_Delay(1000);
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}
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return 0;
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}
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