adc --ok
uart3 --ok
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59
applications/adc_vol_sample.c
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59
applications/adc_vol_sample.c
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@ -0,0 +1,59 @@
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-11-29 misonyo first implementation.
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*/
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/*
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* 程序清单: ADC 设备使用例程
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* 例程导出了 adc_sample 命令到控制终端
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* 命令调用格式:adc_sample
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* 程序功能:通过 ADC 设备采样电压值并转换为数值。
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* 示例代码参考电压为3.3V,转换位数为12位。
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#define ADC_DEV_NAME "adc1" /* ADC 设备名称 */
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#define ADC_DEV_CHANNEL 18 /* ADC 通道 */
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#define REFER_VOLTAGE 330 /* 参考电压 3.3V,数据精度乘以100保留2位小数*/
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#define CONVERT_BITS (1 << 12) /* 转换位数为12位 */
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#define TEMP_DELTA 0//温度补偿
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static int adc_vol_sample(int argc, char *argv[])
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{
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rt_adc_device_t adc_dev;
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rt_uint32_t value, vol;
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rt_err_t ret = RT_EOK;
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/* 查找设备 */
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adc_dev = (rt_adc_device_t)rt_device_find(ADC_DEV_NAME);
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if (adc_dev == RT_NULL)
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{
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rt_kprintf("adc sample run failed! can't find %s device!\n", ADC_DEV_NAME);
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return RT_ERROR;
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}
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/* 使能设备 */
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ret = rt_adc_enable(adc_dev, ADC_DEV_CHANNEL);
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/* 读取采样值 */
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value = rt_adc_read(adc_dev, ADC_DEV_CHANNEL);
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rt_kprintf("the value is :%d \n", value);
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/* 转换为对应电压值 */
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vol = value * REFER_VOLTAGE / CONVERT_BITS;
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rt_kprintf("the voltage is :%d.%02d \n", vol / 100, vol % 100);
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rt_int32_t t = (int)(143-vol)/0.43+25;
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rt_kprintf("temp is %d ℃\n",t+TEMP_DELTA);
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/* 关闭通道 */
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ret = rt_adc_disable(adc_dev, ADC_DEV_CHANNEL);
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return ret;
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}
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/* 导出到 msh 命令列表中 */
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MSH_CMD_EXPORT(adc_vol_sample, adc voltage convert sample);
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@ -30,3 +30,4 @@ int main(void)
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return RT_EOK;
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}
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//fastlz_test -c demo.bin f.bin
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143
applications/uart_dma_sample.c
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143
applications/uart_dma_sample.c
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/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2019-04-16 misonyo first implementation.
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*/
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/*
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* 程序清单:这是一个串口设备 DMA 接收使用例程
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* 例程导出了 uart_dma_sample 命令到控制终端
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* 命令调用格式:uart_dma_sample uart3
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* 命令解释:命令第二个参数是要使用的串口设备名称,为空则使用默认的串口设备
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* 程序功能:通过串口输出字符串"hello RT-Thread!",并通过串口输出接收到的数据,然后打印接收到的数据。
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*/
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#include <rtthread.h>
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#include <dfs_file.h>
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#define SAMPLE_UART_NAME "uart3" /* 串口设备名称 */
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#define MAX_SIZE_TO_SAVE 1024*2
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/* 串口接收消息结构*/
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struct rx_msg
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{
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rt_device_t dev;
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rt_size_t size;
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};
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/* 串口设备句柄 */
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static rt_device_t serial;
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/* 消息队列控制块 */
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static struct rt_messagequeue rx_mq;
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/* 接收数据回调函数 */
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static rt_err_t uart_input(rt_device_t dev, rt_size_t size)
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{
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struct rx_msg msg;
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rt_err_t result;
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msg.dev = dev;
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msg.size = size;
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result = rt_mq_send(&rx_mq, &msg, sizeof(msg));
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if ( result == -RT_EFULL)
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{
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/* 消息队列满 */
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rt_kprintf("message queue full!\n");
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}
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return result;
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}
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static void serial_thread_entry(void *parameter)
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{
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struct rx_msg msg;
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rt_err_t result;
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rt_uint32_t rx_length;
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static char rx_buffer[RT_SERIAL_RB_BUFSZ + 1];
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while (1)
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{
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rt_memset(&msg, 0, sizeof(msg));
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/* 从消息队列中读取消息*/
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result = rt_mq_recv(&rx_mq, &msg, sizeof(msg), RT_WAITING_FOREVER);
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if (result == RT_EOK)
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{
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/* 从串口读取数据*/
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rx_length = rt_device_read(msg.dev, 0, rx_buffer, msg.size);
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rx_buffer[rx_length] = '\0';
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/* 通过串口设备 serial 输出读取到的消息 */
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rt_device_write(serial, 0, rx_buffer, rx_length);
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int fd=0;
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fd =open("/rxdata/demo.bin",O_WRONLY | O_CREAT|O_APPEND);
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if(fd <0)
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{
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rt_kprintf("open file failed!\r\n");
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}
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else
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{
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int count =write(fd,rx_buffer,rx_length);
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close(fd);
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fd =0;
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}
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/* 打印数据 */
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rt_kprintf("%s\n",rx_buffer);
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}
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}
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}
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static int uart_dma_sample(int argc, char *argv[])
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{
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rt_err_t ret = RT_EOK;
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char uart_name[RT_NAME_MAX];
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static char msg_pool[256];
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char str[] = "hello RT-Thread!\r\n";
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if (argc == 2)
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{
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rt_strncpy(uart_name, argv[1], RT_NAME_MAX);
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}
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else
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{
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rt_strncpy(uart_name, SAMPLE_UART_NAME, RT_NAME_MAX);
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}
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/* 查找串口设备 */
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serial = rt_device_find(uart_name);
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if (!serial)
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{
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rt_kprintf("find %s failed!\n", uart_name);
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return RT_ERROR;
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}
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/* 初始化消息队列 */
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rt_mq_init(&rx_mq, "rx_mq",
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msg_pool, /* 存放消息的缓冲区 */
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sizeof(struct rx_msg), /* 一条消息的最大长度 */
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sizeof(msg_pool), /* 存放消息的缓冲区大小 */
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RT_IPC_FLAG_FIFO); /* 如果有多个线程等待,按照先来先得到的方法分配消息 */
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/* 以 DMA 接收及轮询发送方式打开串口设备 */
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rt_device_open(serial, RT_DEVICE_FLAG_DMA_RX);
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/* 设置接收回调函数 */
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rt_device_set_rx_indicate(serial, uart_input);
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/* 发送字符串 */
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rt_device_write(serial, 0, str, (sizeof(str) - 1));
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/* 创建 serial 线程 */
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rt_thread_t thread = rt_thread_create("serial", serial_thread_entry, RT_NULL, 1024, 25, 10);
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/* 创建成功则启动线程 */
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if (thread != RT_NULL)
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{
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rt_thread_startup(thread);
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}
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else
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{
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ret = RT_ERROR;
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}
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return ret;
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}
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/* 导出到 msh 命令列表中 */
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MSH_CMD_EXPORT(uart_dma_sample, uart device dma sample);
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}
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}
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/**
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* @brief ADC MSP Initialization
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* This function configures the hardware resources used in this example
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* @param hadc: ADC handle pointer
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* @retval None
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*/
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void HAL_ADC_MspInit(ADC_HandleTypeDef* hadc)
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{
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if(hadc->Instance==ADC1)
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{
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/* USER CODE BEGIN ADC1_MspInit 0 */
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/* USER CODE END ADC1_MspInit 0 */
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/* Peripheral clock enable */
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__HAL_RCC_ADC1_CLK_ENABLE();
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/* USER CODE BEGIN ADC1_MspInit 1 */
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/* USER CODE END ADC1_MspInit 1 */
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}
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}
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#define BSP_UART1_TX_PIN "PA9"
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#define BSP_UART1_RX_PIN "PA10"
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#define BSP_USING_UART3
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#define BSP_UART3_TX_PIN "PB10"
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#define BSP_UART3_RX_PIN "PB11"
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#define BSP_UART3_RX_USING_DMA
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/*-------------------------- UART CONFIG END --------------------------*/
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/*-------------------------- I2C CONFIG BEGIN --------------------------*/
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*
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*/
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/*#define BSP_USING_ADC1*/
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#define BSP_USING_ADC1
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/*#define BSP_USING_ADC2*/
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/*#define BSP_USING_ADC3*/
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*/
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#define HAL_MODULE_ENABLED
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/* #define HAL_ADC_MODULE_ENABLED */
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#define HAL_ADC_MODULE_ENABLED
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/* #define HAL_CRYP_MODULE_ENABLED */
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/* #define HAL_CAN_MODULE_ENABLED */
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/* #define HAL_CRC_MODULE_ENABLED */
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#define RT_USING_DEVICE_IPC
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#define RT_USING_SERIAL
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#define RT_USING_SERIAL_V1
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#define RT_SERIAL_RB_BUFSZ 64
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#define RT_SERIAL_USING_DMA
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#define RT_SERIAL_RB_BUFSZ 4096
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#define RT_USING_PIN
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#define RT_USING_ADC
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#define RT_USING_RTC
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#define RT_USING_SPI
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#define RT_USING_SFUD
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