本帖最后由 dami 于 2021-3-29 09:45 编辑
【STM32G4评测+03+MDK+Stm32cube连接环境传感器】1，打开Stm32cube，升级到最新的6.20。
2，配置板子为nucleo-STM32G491RE。
3，配置串口3，TIM3，（因为是选的板子所以串口一默认打开的，ld2也是配置好了的）。
设置为接收中断，发送不中断。波特率115200.
4，生成代码。
5，用mdk打开。
6，工程中startup_stm32g491xx.s没加上所以编译有错。加上。
7，实验目标：串口3读传感器数据送到串口一打印。
8，项目中增加SVM40.C SVM40.h文件。 SVM40.h
void svm40_start_measurement(void);
void svm40_get_signals(void);
void svm40_get_raw_signals(void);
void svm40_stop_measurement(void);
void svm40_get_temperature_offset(void);
void svm40_set_temperature_offset(void);
void svm40_get_voc_parameters(void);
void svm40_set_voc_parameters(void);
void svm40_store_input_parameters(void);
void svm40_get_voc_states(void);
void svm40_set_voc_states(void);
void svm40_get_version(void);
void svm40_device_reset(void);
#include "stm32g4xx_hal.h"
#include "stm32g4xx_hal_uart.h"
extern UART_HandleTypeDef huart3;
void svm40_start_measurement(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x00, 0x01, 0x00, 0xFE, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_signals(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x03, 0x01, 0x0A, 0xF1, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_raw_signals(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x03, 0x01, 0x0B, 0xF0, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_stop_measurement(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x01, 0x00, 0xFE, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_temperature_offset(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x01, 0x01, 0x9D, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_set_temperature_offset(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x05, 0x81, 0x00, 0x00, 0x00, 0x00, 0x19, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
//MOSI 0x7E 0x00 0x60 0x01 0x08 0x96 0x7E
//MISO 0x7E 0x00 0x60 0x00 0x08 0x00 0x64 0x00 0x0C 0x00 0xB4 0x00 0x32 0x41 0x7E
void svm40_get_voc_parameters(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x01, 0x08, 0x96, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_set_voc_parameters(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x09, 0x88, 0x00, 0x64, 0x00, 0x0C, 0x00, 0xB4, 0x00, 0x32, 0xB8, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_store_input_parameters(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x01, 0x80, 0x1E, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_voc_states(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x61, 0x01, 0x08, 0x95, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_set_voc_states(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x61, 0x09, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x32, 0x00, 0x00, 0xDB, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_version(void)
{
uint8_t buf2[]={0x7E, 0x00, 0xD1, 0x00, 0x2E, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_device_reset(void)
{
uint8_t buf2[]={0x7E, 0x00, 0xD3, 0x00, 0x2C, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
#include "main.h"
#include "SVM40.h"
I2C_HandleTypeDef hi2c1;
UART_HandleTypeDef hlpuart1;
UART_HandleTypeDef huart4;
UART_HandleTypeDef huart3;
TIM_HandleTypeDef htim3;
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C1_Init(void);
static void MX_LPUART1_UART_Init(void);
static void MX_UART4_Init(void);
static void MX_USART3_UART_Init(void);
static void MX_TIM3_Init(void);
uint8_t uart3sv[4],uart4sv[4];
uint8_t uart3buf[100],uart4buf[100];
static uint8_t p_uart3=0;//,p_uart4=0;
uint32_t volatile soft_tim1=0,soft_tim2=0;
void delayms(uint32_t x)
{
for(uint32_t i=0;i<x;i++)
{
for(uint32_t j=0;j<50000;j++){};
}
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
if(htim == &htim3)
{
if((soft_tim1)>1000000) soft_tim1 =0;
else soft_tim1++;
if((soft_tim2)>1000000) soft_tim2 =0;
else soft_tim2++;
}
}
void read_svm40(uint16_t *pvoc,uint16_t *phumi,uint16_t *ptemp)
{
uint8_t buf2[200];
svm40_get_signals();
delayms(200);
if(p_uart3 >=13)
{
for(uint8_t i=0;i<13;i++)
buf2[i]=uart3buf[i];
}
p_uart3=0;
*pvoc = buf2[5];
*pvoc <<=8;
*pvoc += buf2[6];
*pvoc =*pvoc / 10;
*phumi = buf2[7];
*phumi <<=8;
*phumi += buf2[8];
*ptemp = buf2[9];
*ptemp <<=8;
*ptemp += buf2[10];
*ptemp = *ptemp/2;
}
int main(void)
{
/* USER CODE BEGIN 1 */
/* 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();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_I2C1_Init();
MX_LPUART1_UART_Init();
MX_UART4_Init();
MX_USART3_UART_Init();
MX_TIM3_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_Base_Start_IT(&htim3);
HAL_UART_Receive_IT(&huart3,&uart3sv[0],1);
HAL_UART_Receive_IT(&huart4,&uart4sv[0],1);
delayms(500);
svm40_start_measurement();
delayms(500);
//static uint8_t cont=0;
static uint16_t tempH,tempL,temp, humiH,humiL,humi,voc;
uint8_t buf_T[]={"Temperature is :\n\r"};
uint8_t buf_H[]={"Humidity is :\n\r"};
uint8_t buf_V[]={"Noxious gas is :\n\r"};
//uint8_t buf_K[]={"\n\r"};
uint8_t buf1[200];
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
delayms(500);
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_SET);
delayms(500);
p_uart3=0;//clear uart3 receive buf;
read_svm40(&voc,&humi,&temp);
humiH = humi / 100;
humiL = humi %100;
tempH =temp / 100;
tempL =temp % 100;
HAL_UART_Transmit(&hlpuart1,buf_T,sizeof(buf_T),0xffff);
delayms(30);
sprintf(buf1,"%2d.%2d\n\r",tempH,tempL);
HAL_UART_Transmit(&hlpuart1,buf1,10,0xffff);
delayms(10);
HAL_UART_Transmit(&hlpuart1,buf_H,sizeof(buf_H),0xffff);
delayms(10);
sprintf(buf1,"%2d.%2d\n\r",humiH,humiL);
HAL_UART_Transmit(&hlpuart1,buf1,7,0xffff);
delayms(10);
HAL_UART_Transmit(&hlpuart1,buf_V,sizeof(buf_V),0xffff);
delayms(10);
sprintf(buf1,"%d \n\r",voc);
HAL_UART_Transmit(&hlpuart1,buf1,6,0xffff);
delayms(10);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
//后面是系统自动生成，省略。
#include "stm32g4xx_hal.h"
#include "stm32g4xx_hal_uart.h"
extern UART_HandleTypeDef huart3;
void svm40_start_measurement(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x00, 0x01, 0x00, 0xFE, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_signals(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x03, 0x01, 0x0A, 0xF1, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_raw_signals(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x03, 0x01, 0x0B, 0xF0, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_stop_measurement(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x01, 0x00, 0xFE, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_temperature_offset(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x01, 0x01, 0x9D, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_set_temperature_offset(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x05, 0x81, 0x00, 0x00, 0x00, 0x00, 0x19, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
//MOSI 0x7E 0x00 0x60 0x01 0x08 0x96 0x7E
//MISO 0x7E 0x00 0x60 0x00 0x08 0x00 0x64 0x00 0x0C 0x00 0xB4 0x00 0x32 0x41 0x7E
void svm40_get_voc_parameters(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x01, 0x08, 0x96, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_set_voc_parameters(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x09, 0x88, 0x00, 0x64, 0x00, 0x0C, 0x00, 0xB4, 0x00, 0x32, 0xB8, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_store_input_parameters(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x60, 0x01, 0x80, 0x1E, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_voc_states(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x61, 0x01, 0x08, 0x95, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_set_voc_states(void)
{
uint8_t buf2[]={0x7E, 0x00, 0x61, 0x09, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x32, 0x00, 0x00, 0xDB, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_get_version(void)
{
uint8_t buf2[]={0x7E, 0x00, 0xD1, 0x00, 0x2E, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
void svm40_device_reset(void)
{
uint8_t buf2[]={0x7E, 0x00, 0xD3, 0x00, 0x2C, 0x7E};
HAL_UART_Transmit(&huart3,buf2,sizeof(buf2),0xffff);
}
----------------------------------完------------------------------------
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