与TI（德州仪器）单片机联调2

打开工程，其目录为 \TI\M0_SDK\mspm0_sdk_1_30_00_03\examples\nortos\LP_MSPM0L1306\driverlib\uart_echo_interrupts_standby\keil

打开uart_echo_interrupts_standby.syscfg，并保持在当前文件，打开sysconfig工具

开启系统滴答定时器，并配置如下

修改串口配置如下：

1、时钟源改为BUSCLK（修改时钟源后会有警告，把后面两个全部修改完之后就不会有警告提示了）

2、波特率改为115200，

3、采样改为16x

不要更改其他地方，否则会造成配置变化无法通讯

点击save保存

点击yes to all，更新所有文件，这里可能会出现一个问题，参考 缺少ti_msp_dl_config.c和ti_msp_dl_config.h

将tjc_usart_hmi.c和tjc_usart_hmi.h复制到工程目录下

将tjc_usart_hmi.c和tjc_usart_hmi.h添加到工程中（这两个文件会在后面的工程里提供，需要自行从工程里找到然后导入客户自己的工程中）

配置下载工具，使用的是daplink，请勿使用stlink

勾选自动复位

uart_echo_interrupts_standby.c中的代码如下,编译下载，即可正常通讯

/*
* Copyright (c) 2021, Texas Instruments Incorporated
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* *  Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
*
* *  Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* *  Neither the name of Texas Instruments Incorporated nor the names of
*    its contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include "ti_msp_dl_config.h"
#include "tjc_usart_hmi.h"
#include "stdio.h"

#define FRAME_LENGTH 7
volatile uint32_t delay_times = 0;
volatile uint8_t uart_data = 0;
volatile uint32_t now_time = 0;

// 搭配滴答定时器实现的精确ms延时
void delay_ms(unsigned int ms)
{
   delay_times = ms;
   while (delay_times != 0)
      ;
}

int main(void)
{
   SYSCFG_DL_init();
   // 清除串口中断标志
   NVIC_ClearPendingIRQ(UART_0_INST_INT_IRQN);
   // 使能串口中断
   NVIC_EnableIRQ(UART_0_INST_INT_IRQN);
   int a = 100;
   char str[100];
   uint32_t last_time = 0;
   while (1)
   {
      if (now_time - last_time >= 1000)
      {
         last_time = now_time;
         sprintf(str, "n0.val=%d", a);
         tjc_send_string(str);
         sprintf(str, "t0.txt=\"%d\"\xff\xff\xff", a);
         tjc_send_string(str);
         sprintf(str, "click b0,1\xff\xff\xff");
         tjc_send_string(str);
         delay_ms(50);
         sprintf(str, "click b0,0\xff\xff\xff");
         tjc_send_string(str);

         a++;
      }
      // stm32f103的GND接串口屏或串口工具的GND,共地
      // stm32f103的TX1(PA9)接串口屏或串口工具的RX
      // stm32f103的RX1(PA10)接串口屏或串口工具的TX
      // stm32f103的5V接串口屏的5V,如果是串口工具,不用接5V也可以

      // 串口数据格式：
      // 串口数据帧长度：7字节
      // 帧头     参数1    参数2   参数3       帧尾
      // 0x55     1字节   1字节    1字节     0xffffff
      // 当参数是01时
      // 帧头     参数1    参数2   参数3       帧尾
      // 0x55     01     led编号  led状态    0xffffff
      // 例子1：上位机代码  printh 55 01 01 00 ff ff ff  含义：1号led关闭
      // 例子2：上位机代码  printh 55 01 04 01 ff ff ff  含义：4号led打开
      // 例子3：上位机代码  printh 55 01 00 01 ff ff ff  含义：0号led打开
      // 例子4：上位机代码  printh 55 01 04 00 ff ff ff  含义：4号led关闭

      // 当参数是02或03时
      // 帧头     参数1    参数2   参数3       帧尾
      // 0x55     02/03   滑动值    00    0xffffff
      // 例子1：上位机代码  printh 55 02 64 00 ff ff ff  含义：h0.val=100
      // 例子2：上位机代码  printh 55 02 00 00 ff ff ff  含义：h0.val=0
      // 例子3：上位机代码  printh 55 03 64 00 ff ff ff  含义：h1.val=100
      // 例子4：上位机代码  printh 55 03 00 00 ff ff ff  含义：h1.val=0

      // 当串口缓冲区大于等于一帧的长度时
      while (usize >= FRAME_LENGTH)
      {
         // 校验帧头帧尾是否匹配
         if (usize >= FRAME_LENGTH && u(0) == 0x55 && u(4) == 0xff && u(5) == 0xff && u(6) == 0xff)
         {
            // 匹配，进行解析
            if (u(1) == 0x01)
            {
               sprintf(str, "msg.txt=\"led %d is %s\"", u(2), u(3) ? "on" : "off");
               tjc_send_string(str);
               if (u(2) == 0x00)
               {
                  if (u(3) == 0x00)
                  {
                     // DL_GPIO_clearPins(LED1_PORT,LED1_PIN_14_PIN);//输出低电平
                  }
                  else
                  {
                     // DL_GPIO_setPins(LED1_PORT,LED1_PIN_14_PIN);  //输出高电平
                  }
               }
            }
            else if (u(1) == 0x02)
            {
               // 下发的是h0进度条的信息

               sprintf(str, "msg.txt=\"h0.val is %d\"", u(2));
               tjc_send_string(str);
            }
            else if (u(1) == 0x03)
            {
               // 下发的是h1进度条的信息
               sprintf(str, "msg.txt=\"h1.val is %d\"", u(2));
               tjc_send_string(str);
            }

            udelete(7); // 删除解析过的数据
         }
         else
         {

            // 不匹配删除1字节
            udelete(1);
            break;
         }
      }
   }
}

void SysTick_Handler()
{
   if (delay_times != 0)
   {
      delay_times--;
   }
   now_time++;
}

// 串口的中断服务函数
void UART_0_INST_IRQHandler(void)
{
   // 如果产生了串口中断
   switch (DL_UART_Main_getPendingInterrupt(UART_0_INST))
   {
   case DL_UART_MAIN_IIDX_RX: // 如果是接收中断
      // 接发送过来的数据保存在变量中
      uart_data = DL_UART_Main_receiveData(UART_0_INST);
      // 将保存的数据再发送出去
      // uart0_send_char(uart_data);
      writeRingBuff(uart_data);
      break;

   default: // 其他的串口中断
      break;
   }
}