uint8 HalUARTOpen(uint8 port, halUARTCfg_t *config);什么意思
时间: 2023-12-01 14:41:03 浏览: 29
函数`HalUARTOpen`是一个用于打开UART串口的函数,它需要两个参数:`port`和`config`。其中,`port`是一个`uint8`类型的参数,表示要打开的串口号;`config`是一个指向`halUARTCfg_t`类型的指针,表示串口的配置信息。函数返回值为`uint8`类型,表示打开串口的状态,成功返回0,失败返回其他值。
相关问题
void AD7689_Read_Channel(uint8_t channel, uint16_t *data) { // 先将CS引脚置低,选中AD7689 GPIO_ResetBits(AD7689_CS_PORT, AD7689_CS_PIN); // 发送配置字节和通道字节 uint16_t config = 0x8000 | (channel << 12); // 配置字节 SPI_I2S_SendData(AD7689_SPI, config); }
The code snippet you provided is part of a function that reads data from the AD7689 ADC using SPI communication. Here's the continuation of the code:
```c
void AD7689_Read_Channel(uint8_t channel, uint16_t *data)
{
// Set the CS pin low to select AD7689
GPIO_ResetBits(AD7689_CS_PORT, AD7689_CS_PIN);
// Send configuration byte and channel byte
uint16_t config = 0x8000 | (channel << 12); // Configuration byte
SPI_I2S_SendData(AD7689_SPI, config);
// Wait until SPI transmission is complete
while (SPI_I2S_GetFlagStatus(AD7689_SPI, SPI_I2S_FLAG_BSY) != RESET);
// Receive the data from the ADC
while (SPI_I2S_GetFlagStatus(AD7689_SPI, SPI_I2S_FLAG_RXNE) == RESET);
*data = SPI_I2S_ReceiveData(AD7689_SPI);
// Set the CS pin high to deselect AD7689
GPIO_SetBits(AD7689_CS_PORT, AD7689_CS_PIN);
}
```
In this code, after configuring the `config` variable with the appropriate configuration and channel information, `SPI_I2S_SendData` is used to initiate the SPI transmission. The code then waits until the transmission is complete using `SPI_I2S_GetFlagStatus`.
After that, the received data from the ADC is obtained using `SPI_I2S_ReceiveData` and stored in the `data` variable. Finally, the CS pin is set high to deselect the AD7689 ADC.
Please note that this code assumes you have already configured the SPI interface and GPIO pins for the AD7689 ADC. Additionally, error handling and additional functionality may need to be added based on your specific requirements.
uint16_t AdcBuf[5]= {0}; uint16_t AdcBuf2= 0; uint8_t i; uint8_t Str_buff[64]= {0}; uint8_t Str_buff2[64]= {0}; uint8_t Rx_dat[3]; uint8_t falg= 0; uint8_t time = 0; uint8_t direction = 0; uint8_t AutomaticMode = 0; uint16_t Average = 0; uint16_t number = 0; uint8_t flagtime = 0; int main(void) { HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_ADC1_Init(); MX_USART1_UART_Init(); MX_TIM2_Init(); HAL_GPIO_WritePin(OLED_RSET_GPIO_Port,OLED_RSET_Pin, GPIO_PIN_RESET); HAL_Delay(100); HAL_GPIO_WritePin(OLED_RSET_GPIO_Port,OLED_RSET_Pin, GPIO_PIN_SET); OLED_Init(); OLED_Clear(); OLED_ShowCHinese(16*0, 2, 57); OLED_ShowCHinese(16*4, 2, 58); OLED_ShowCHinese(16*0, 4, 55); OLED_ShowCHinese(16*4, 4, 56); OLED_ShowCHinese(16*0, 6, 52); OLED_ShowCHinese(16*1, 6, 53); OLED_ShowCHinese(16*2, 6, 52); OLED_ShowCHinese(16*3, 6, 54); 的作用
这段代码是一个基于STM32的嵌入式系统的程序,主要功能是通过ADC采集模拟信号并在OLED屏幕上显示。具体来说,它定义了一些变量和数组,包括5个元素的AdcBuf数组和其他一些用于存储数据的数组。然后,它初始化了GPIO、ADC、USART、TIM2等外设,并在OLED屏幕上显示一些汉字。主函数中,它通过ADC1采集模拟信号,并将采样值存储在AdcBuf数组中。然后,它计算这些采样值的平均值,并将结果存储在Average变量中。它还通过USART1将一些数据发送到终端,并控制OLED屏幕显示一些信息。最后,它使用定时器TIM2来定时执行一些任务。
相关推荐
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![docx](https://img-home.csdnimg.cn/images/20210720083331.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)