【道生物联TKB-623评估板试用】——3.TKB-623评估板连接STM32发送数据

本期就来讲解使用STM32开发板连接道生物联TKB-623评估板进行数据发送，主要还是测试AT指令的使用，板子连接如下图所示。

其中连接STM32板子的TKB-623用来作为发送版，使用AT指令写好的代码如下：
void TK8620_Init(void)
{
char str[256] = {0};

TK8620_Clear();
HAL_UART_Receive_IT(UART_TK8620, &rx1_data, 1);

TK8620_SendCmd("AT+RST\r\n", "AT_OK");
HAL_Delay(3000);

printf("复位芯片 \r\n");

while(TK8620_SendCmd("AT\r\n", "AT_OK"))
HAL_Delay(200);
printf("AT 链路检查 \r\n");

while(TK8620_SendCmd("AT+VER?\r\n", "AT_OK"))
HAL_Delay(200);
//printf("查询固件版本号 \r\n");

while(TK8620_SendCmd("AT+RSTPARA\r\n", "AT_OK"))
HAL_Delay(200);
//printf("P2P 固件恢复默认参数 \r\n");

while(TK8620_SendCmd("AT+WORKMODE=21\r\n", "AT_OK"))
HAL_Delay(200);
printf("设置突发工作模式 \r\n");

while(TK8620_SendCmd("AT+FREQ=510000000,510000000,510000000,510000000\r\n", "AT_OK"))
HAL_Delay(200);
printf("设置发送频率、接收频率及BCN 频率 \r\n");

while(TK8620_SendCmd("AT+RATE=18\r\n", "AT_OK"))
HAL_Delay(200);
printf("设置速率 \r\n");

while(TK8620_SendCmd("AT+TXP=15\r\n", "AT_OK"))
HAL_Delay(200);
printf("设置发送功率 \r\n");

while(TK8620_SendCmd("AT+DEST=04:03:02:01\r\n", "AT_OK"))
HAL_Delay(200);
printf("设置目的设备地址 \r\n");

//HAL_Delay(2000);

}

主函数代码如下

/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------/
/ USER CODE BEGIN Includes */
#include <string.h>
#include "tk8620.h"

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------/
/ USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------/
/ USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------/
/ USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------/
void SystemClock_Config(void);
/ USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------/
/ USER CODE BEGIN 0 /
uint8_t data[] = "i love you";
/ USER CODE END 0 */

/**

• [url=home.php?mod=space&uid=2666770]@Brief[/url] The application entry point.
• @retval int
  */
  int main(void)
  {

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/* MCU Configuration--------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* USER CODE BEGIN Init */

/* USER CODE END Init */

/* Configure the system clock */
SystemClock_Config();

/* USER CODE BEGIN SysInit */

/* USER CODE END SysInit */

/* Initialize all configured peripherals /
MX_GPIO_Init();
MX_USART2_UART_Init();
MX_USART1_UART_Init();
MX_USART3_UART_Init();
/ USER CODE BEGIN 2 */

TK8620_Init();printf("TK8620---------------\r\n");

//Test data
uint8_t pub_uint8 = 1;
uint16_t pub_uint16 = 2;
uint32_t pub_uint32 = 3;
float pub_float = 1.1;
double pub_double = 2.2;

printf("TK8620--------------\r\n");
float f = 3.1415926;

#if 1
unsigned char floatstring[33] = {0};
printf("fpval = %f\n", f);
fptostring((void*)&f, (unsigned char*)floatstring, sizeof(f));
printf("floathex = %s\n", floatstring);

if (isfpstring((void*)&f, (unsigned char*)floatstring, sizeof(f)))
{
printf("fpval = %f\n", f);
}
else
{
printf("Error converting floating point from hex.\n");
}
#endif
//HAL_Delay(2000);

/* USER CODE END 2 */

/* Infinite loop /
/ USER CODE BEGIN WHILE /
while (1)
{
/ USER CODE END WHILE */

/* USER CODE BEGIN 3 */

 
  if(timer2_flag)
  {
  	  timer2_flag = 0;
	  TK8620_SendFloat(f);
	  
  }

}
/* USER CODE END 3 */
}

1。重启

2。AT测试

3。版本测试

4。固件默认参数

5。设置突发工作模式

6。设置频率，我设置为最大510MHZ

7。设置速率，拉到最大

8。设置发送功率，设为最大

9。设置目的地址 04:03:02:01

同理，在另一块TKB-623上通过串口助手设置好后，就可以接收数据了

10。打开串口助手，通过STM32发送PI圆周率 3.1415926给另一块TKB-623

11。打开浮点数转字符串工具，输入3.1415926

可以看到对应的16进制字符串是 0x40490FDA

打开串口助手查看，另一块板子上的数据

因为ARM处理器是大端模式，所以字节序是反的，需要注意
+DI: LEN 4, SLOT 0, SNR 18, RSSI -60, Data DA0F4940

至此，数据传输正确