You can find my circuit connection attached below.
This code below is just to establish communication between stm32f103c8 and ADE7753 by reading its reg default value in CUBE IDE.
In Clock configuration-36Mhz APB2 peripheral clock.
in SPI-CPOL=high, CPOH=2edge.........Prescaller=64(please describe this)
thank you in advance.
#include "main.h"
#include "spi.h" //SPI1
#include "usart.h" //UART1
#include "gpio.h"
#include <string.h> //using strlen function
void SystemClock_Config(void);
int main(void)
{
void uprintf(char* str) {
HAL_UART_Transmit(&huart1, (uint8_t *) str, strlen(str), 100); //
}
char buffer[32];
uint8_t reg_r=0x00; // 0x00 is for read operation.
uint8_t reg_w=0x80; // For write operation
uint8_t reg = 0x1E; //register address to read its default value.
uint8_t V1; //to store the incomming data from ADE7753
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_SPI1_Init();
MX_USART1_UART_Init(); //UART used to transmit data to capture in PUTTY.
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET); // output low to CS
HAL_Delay(2); //2 milli second delay.
HAL_SPI_Transmit(& hspi1,®_w,1,1); //set MSB
HAL_Delay(5); //5milli second delay.
HAL_SPI_Transmit(& hspi1,®,1,1); //reg addr
HAL_Delay(5); // 5milli second delay
while (1)
{
V1= HAL_SPI_Receive(& hspi1,&V1,1,1); //receive data on V1 variable.
sprintf(buffer, "VRMS:%d\r\n",V1); // for UART data transmit.
uprintf(buffer);
HAL_Delay(500);
HAL_GPIO_TogglePin (GPIOC, GPIO_PIN_13); //led toggle.
HAL_Delay(100);
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
void Error_Handler(void)
{
}
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
}
#endif
