我想要一个代码来读取 adc ad7699 的 STM32F732 控制器出厂设置
时间: 2023-07-15 08:12:18 浏览: 202
以下是一个基本的代码示例,用于读取ADC AD7699的出厂设置:
```
#include "stm32f7xx.h"
#include "stm32f7xx_hal.h"
#define SPI_TIMEOUT 10000
SPI_HandleTypeDef hspi1;
void Error_Handler(void);
int main(void)
{
uint16_t adc_config = 0;
uint8_t tx_data[2] = {0x00, 0x00};
uint8_t rx_data[2] = {0x00, 0x00};
HAL_Init();
__HAL_RCC_SPI1_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
hspi1.Instance = SPI1;
hspi1.Init.Mode = SPI_MODE_MASTER;
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
hspi1.Init.DataSize = SPI_DATASIZE_16BIT;
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
hspi1.Init.NSS = SPI_NSS_SOFT;
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
hspi1.Init.CRCPolynomial = 7;
if (HAL_SPI_Init(&hspi1) != HAL_OK) {
Error_Handler();
}
// Send command to read ADC configuration
tx_data[0] = 0x04; // Config register address
HAL_SPI_Transmit(&hspi1, tx_data, 1, SPI_TIMEOUT);
HAL_SPI_Receive(&hspi1, rx_data, 2, SPI_TIMEOUT);
adc_config = rx_data[0] << 8 | rx_data[1];
while(1) {
// Do something with the ADC configuration
}
}
void Error_Handler(void)
{
while(1) {
// Error occurred
}
}
```
这个代码使用SPI1外设控制器来与ADC AD7699通信。通过SPI传输命令和数据,读取ADC的配置寄存器。注意,此代码仅提供了基本的SPI通信和读取ADC配置的示例,你需要根据你的具体需要进行修改。
阅读全文