【NUCLEO-U575ZI-Q测评】HT1621显示热敏电阻值
今天搞了一下热敏电阻采样，用HT1621显示，单位为mv。原理图：
AD接口接PA4，PA4接新定义板子的热敏电阻。
HT1621:DA接PC10，WR接PD9,CS接PF7。
代码：
#include "main.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* Definitions of environment analog values */
/* Value of analog reference voltage (Vref+), connected to analog voltage */
/* supply Vdda (unit: mV). */
#define VDDA_APPLI (3300UL)
/* Init variable out of expected ADC conversion data range */
#define VAR_CONVERTED_DATA_INIT_VALUE (__LL_ADC_DIGITAL_SCALE(ADC1, LL_ADC_RESOLUTION_12B) + 1)
/* USER CODE END PD */
#define uchar unsigned char
#define uint unsigned int
/** @addtogroup 425_GPIO_led_toggle GPIO_led_toggle
* @{
*/
#define DA_1 HAL_GPIO_WritePin(GPIOC,GPIO_PIN_10,1)
#define DA_0 HAL_GPIO_WritePin(GPIOC,GPIO_PIN_10,0)
#define WR_1 HAL_GPIO_WritePin(GPIOD,GPIO_PIN_9,1)
#define WR_0 HAL_GPIO_WritePin(GPIOD,GPIO_PIN_9,0)
#define CS_1 HAL_GPIO_WritePin(GPIOF,GPIO_PIN_7,1)
#define CS_0 HAL_GPIO_WritePin(GPIOF,GPIO_PIN_7,0)
#define Smg_a 0x80
#define Smg_b 0x40
#define Smg_c 0x20
#define Smg_d 0x01
#define Smg_e 0x02
#define Smg_f 0x08
#define Smg_g 0x04
#define Smg_dp 0x10
#define Bmp0Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_e | Smg_f
#define Bmp1Map Smg_b | Smg_c
#define Bmp2Map Smg_a | Smg_b | Smg_d | Smg_e | Smg_g
#define Bmp3Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_g
#define Bmp4Map Smg_b | Smg_c | Smg_f | Smg_g
#define Bmp5Map Smg_a | Smg_c | Smg_d | Smg_f | Smg_g
#define Bmp6Map Smg_a | Smg_c | Smg_d | Smg_e | Smg_f | Smg_g
#define Bmp8Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_e | Smg_f | Smg_g
#define Bmp9Map Smg_a | Smg_b | Smg_c | Smg_d | Smg_f | Smg_g
#define Bmp7Map Smg_a | Smg_b | Smg_c
#define BmpAMap Smg_a | Smg_b | Smg_c | Smg_e | Smg_f | Smg_g
#define BmpBMap Smg_c | Smg_d | Smg_e | Smg_f | Smg_g
#define BmpCMap Smg_a | Smg_d | Smg_e | Smg_f
#define BmpDMap Smg_b | Smg_c | Smg_d | Smg_e | Smg_g
#define BmpEMap Smg_a | Smg_d | Smg_e | Smg_f | Smg_g
#define BmpFMap Smg_a | Smg_e | Smg_f | Smg_g
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
ADC_HandleTypeDef hadc1;
/* USER CODE BEGIN PV */
/* Variables for ADC conversion data */
__IO uint16_t uhADCxConvertedData = VAR_CONVERTED_DATA_INIT_VALUE; /* ADC group regular conversion data */
/* Variables for ADC conversion data computation to physical values */
uint16_t uhADCxConvertedData_Voltage_mVolt = 0;/* Value of voltage calculated from ADC conversion data (unit: mV) */
/* Variable to report status of ADC group regular unitary conversion */
/*0: ADC group regular unitary conversion is not completed */
/*1: ADC group regular unitary conversion is completed */
/*2: ADC group regular unitary conversion has not been started yet */
/* (initial state) */
__IO uint8_t ubAdcGrpRegularUnitaryConvStatus = 2; /* Variable set into ADC interruption callback */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void SystemPower_Config(void);
static void MX_GPIO_Init(void);
static void MX_ICACHE_Init(void);
static void MX_ADC1_Init(void);
/* USER CODE BEGIN PFP */
/* USER CODE BEGIN PV */
static GPIO_InitTypeDefGPIO_InitStruct;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void SystemPower_Config(void);
static void MX_ICACHE_Init(void);
/* USER CODE BEGIN PFP */
const unsigned char SegCode[] = {Bmp0Map,Bmp1Map,Bmp2Map,Bmp3Map,Bmp4Map,Bmp5Map,Bmp6Map,Bmp7Map,Bmp8Map,Bmp9Map,BmpAMap,BmpBMap,BmpCMap,BmpDMap,BmpEMap,BmpFMap};
unsigned char DpyNum = {Smg_g,Smg_g,Smg_g,Smg_g,Smg_g,Smg_g}; //ÏÔʾ»º³åÇø
unsigned int i;
void COMMAND_HT1621(unsigned char comm)
{
//unsigned char i;
CS_0;
WR_0;
for(i=0;i<3;i++) //дÃüÁî
{
if((0x04<<i)&0x04)DA_1; //100
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<9;i++) //дÃüÁîÊý¾Ý
{
if((comm<<i)&0x80)DA_1; //100
else DA_0;
WR_0;
WR_1;
}
CS_1;
}
void HT1621_Display(void)
{
//unsigned char i;
CS_0; //ƬѡCS
WR_0;
for(i=0;i<3;i++) //дÃüÁî
{
if((0x05<<i)&0x04)DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<6;i++) //дµØÖ·
{
if((20<<i)&0x20) DA_1;//20¶ÔÓ¦ SEGµØÖ·
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //дÊý¾Ý
{
if((DpyNum<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //дÊý¾Ý
{
if((DpyNum<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //дÊý¾Ý
{
if((DpyNum<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //дÊý¾Ý
{
if((DpyNum<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //дÊý¾Ý
{
if((DpyNum<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
for(i=0;i<8;i++) //дÊý¾Ý
{
if((DpyNum<<i)&0x80) DA_1;
else DA_0;
WR_0;
WR_1;
}
CS_1; //ÊÍ·ÅCS
}
void LCD_Init(void)
{
COMMAND_HT1621(0x01); //SYS EN
COMMAND_HT1621(0x03); //LCD ON
COMMAND_HT1621(0x29); //4 COM1/3 BIAS
HT1621_Display(); //clear screen
}
/* USER CODE END 0 */
/**
* @briefThe application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
uint8_t qian,bai,shi,ge;
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* Configure the System Power */
SystemPower_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_ICACHE_Init();
//MX_USART2_Init();
MX_ADC1_Init();
/* USER CODE BEGIN 2 */
/* Initialize LED on board */
/* -2- Configure IO in output push-pull mode to drive external LEDs */
GPIO_InitStruct.Mode= GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull= GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Pin = LED1_PIN;
HAL_GPIO_Init(LED1_GPIO_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = LED2_PIN;
HAL_GPIO_Init(LED2_GPIO_PORT, &GPIO_InitStruct);
/* Perform ADC calibration */
if (HAL_ADCEx_Calibration_Start(&hadc1, ADC_CALIB_OFFSET, ADC_SINGLE_ENDED) != HAL_OK)
{
/* Calibration Error */
Error_Handler();
}
/* USER CODE END 2 */
LCD_Init();
DpyNum = Smg_a|Smg_d|Smg_g; //"Èý"
DpyNum = SegCode;
DpyNum = SegCode;
DpyNum = SegCode;
DpyNum = SegCode;
DpyNum = SegCode;
HT1621_Display(); //Ë¢ÐÂLCD
///*##-2- Put UART peripheral in reception process ###########################*/
//if (HAL_UART_Receive(&huart2, (uint8_t *)aRxBuffer, RXBUFFERSIZE, 5000) != HAL_OK)
//{
// Error_Handler();
//}
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* Start ADC group regular conversion */
if (HAL_ADC_Start_IT(&hadc1) != HAL_OK)
{
/* Error: ADC conversion start could not be performed */
Error_Handler();
}
/* For this example purpose, wait until conversion is done */
while (ubAdcGrpRegularUnitaryConvStatus != 1);
/* Reset status variable of ADC group regular unitary conversion */
ubAdcGrpRegularUnitaryConvStatus = 0;
qian=uhADCxConvertedData_Voltage_mVolt/1000;
bai=uhADCxConvertedData_Voltage_mVolt%1000/100;
shi=uhADCxConvertedData_Voltage_mVolt%100/10;
ge=uhADCxConvertedData_Voltage_mVolt%10;
DpyNum = SegCode;
DpyNum = SegCode;
DpyNum = SegCode;
DpyNum = SegCode;
HT1621_Display(); //Ë¢ÐÂLCD
HAL_Delay(1000);
/* Note: ADC group regular conversions data are stored into array */
/* "uhADCxConvertedData" */
/* (for debug: see variable content into watch window). */
/* Note: ADC conversion data are computed to physical values */
/* into array "uhADCxConvertedData_Voltage_mVolt" using */
/* ADC LL driver helper macro "__LL_ADC_CALC_DATA_TO_VOLTAGE()" */
/* (for debug: see variable content with debugger) */
/* in IRQ handler callback function. */
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_MSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.MSIState = RCC_MSI_ON;
RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_4;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV1;
RCC_OscInitStruct.PLL.PLLM = 1;
RCC_OscInitStruct.PLL.PLLN = 80;
RCC_OscInitStruct.PLL.PLLP = 2;
RCC_OscInitStruct.PLL.PLLQ = 2;
RCC_OscInitStruct.PLL.PLLR = 2;
RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_0;
RCC_OscInitStruct.PLL.PLLFRACN = 0;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
|RCC_CLOCKTYPE_PCLK3;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief Power Configuration
* @retval None
*/
static void SystemPower_Config(void)
{
/*
* Disable the internal Pull-Up in Dead Battery pins of UCPD peripheral
*/
HAL_PWREx_DisableUCPDDeadBattery();
/*
* Switch to SMPS regulator instead of LDO
*/
if (HAL_PWREx_ConfigSupply(PWR_SMPS_SUPPLY) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief ADC1 Initialization Function
* @param None
* @retval None
*/
static void MX_ADC1_Init(void)
{
/* USER CODE BEGIN ADC1_Init 0 */
/* USER CODE END ADC1_Init 0 */
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC1_Init 1 */
/* USER CODE END ADC1_Init 1 */
/** Common config
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV4;
hadc1.Init.Resolution = ADC_RESOLUTION_12B;
hadc1.Init.GainCompensation = 0;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.DMAContinuousRequests = DISABLE;
hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
hadc1.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
hadc1.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
hadc1.Init.OversamplingMode = DISABLE;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_9;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_391CYCLES_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC1_Init 2 */
/* USER CODE END ADC1_Init 2 */
}
/**
* @brief ICACHE Initialization Function
* @param None
* @retval None
*/
static void MX_ICACHE_Init(void)
{
/* USER CODE BEGIN ICACHE_Init 0 */
/* USER CODE END ICACHE_Init 0 */
/* USER CODE BEGIN ICACHE_Init 1 */
/* USER CODE END ICACHE_Init 1 */
/** Enable instruction cache in 1-way (direct mapped cache)
*/
if (HAL_ICACHE_ConfigAssociativityMode(ICACHE_1WAY) != HAL_OK)
{
Error_Handler();
}
if (HAL_ICACHE_Enable() != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ICACHE_Init 2 */
/* USER CODE END ICACHE_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
//GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
//__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
/*Configure GPIO pin Output Level */
/*Configure GPIO pin : LED1_Pin */
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/******************************************************************************/
/* USER IRQ HANDLER TREATMENT */
/******************************************************************************/
/**
* @briefConversion transfer complete callback
* @NOTE This function is executed when the transfer complete interrupt
* is generated
* @retval None
*/
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef *hadc)
{
/* Retrieve ADC conversion data */
uhADCxConvertedData = HAL_ADC_GetValue(hadc);
/* Computation of ADC conversions raw data to physical values */
/* using helper macro. */
uhADCxConvertedData_Voltage_mVolt = __LL_ADC_CALC_DATA_TO_VOLTAGE(ADC1, VDDA_APPLI, uhADCxConvertedData, LL_ADC_RESOLUTION_12B);
/* Update status variable of ADC unitary conversion */
ubAdcGrpRegularUnitaryConvStatus = 1;
}
/**
* @briefADC error interruption callback
* @retval None
*/
void HAL_ADC_ErrorCallback(ADC_HandleTypeDef *hadc)
{
/* Note: Disable ADC interruption that caused this error before entering in
infinite loop below. */
/* In case of error due to overrun: Disable ADC group regular overrun interruption */
LL_ADC_DisableIT_OVR(ADC1);
/* Error reporting */
Error_Handler();
}
/* USER CODE END 4 */
/**
* @briefThis function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
/* Turn on LED and remain in infinite loop */
while (1)
{
BSP_LED_On(LED1);
}
/* USER CODE END Error_Handler_Debug */
}
#ifdefUSE_FULL_ASSERT
/**
* @briefReports the name of the source file and the source line number
* where the assert_param error has occurred.
* @paramfile: pointer to the source file name
* @paramline: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d", file, line) */
/* Infinite loop */
while (1)
{
}
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
效果图：
这个屏是spi的吗 是的
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