AD7606使用系列篇3--STM32F407VET6_stm32 ad7606

使用说明

在使用前，请先使用CubeMX生成Keil文件
需配置SPI1，PWM，UART，GPIO。（这边考虑到单片机没有一个实时能够显示的界面，我就用UART把数据传出来看了，如果还是不会配的话，可以直接去我的Gitee仓库里看一下我的CubeMx文件）

另外我还将PA9和PA10作为串口的TX和RX连接在CH340上，与电脑相连，用于查看读取的得到的数据。

C代码

我将整个main.c文件附在这里。

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2023 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>

volatile uint16_t SAMPLING_POINTS = 100;
volatile uint8_t nums = 0;
volatile uint8_t ad7606SamplingDoneFlag = 0;
volatile float data[8][100];
/* 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 */
void AD7606_STM32F407VET6(uint8_t RANGE, uint8_t OS)
{
	volatile uint16_t ii = 0;
  volatile uint8_t MODE = 0;
  volatile uint8_t M[3] = {0x00, 0x00, 0x00};
	
	/*Initialize CS pin*/
	HAL_GPIO_WritePin(GPIOA, AD_CS_PIN_Pin, GPIO_PIN_RESET);
	
	/*Reset AD7606*/
	HAL_GPIO_WritePin(GPIOA, AD_RESET_PIN_Pin, GPIO_PIN_RESET);
	HAL_Delay(1);
	HAL_GPIO_WritePin(GPIOA, AD_RESET_PIN_Pin, GPIO_PIN_SET);
	HAL_Delay(1);
	HAL_GPIO_WritePin(GPIOA, AD_RESET_PIN_Pin, GPIO_PIN_RESET);
	
	/*PWM*/
	HAL_TIM_PWM_Start(&htim2,TIM_CHANNEL_2);
	
	/*Define OS pin*/
	MODE = OS;
	for(ii=0;ii<3;ii++)
  {
		M[ii] = MODE % 2;
    MODE = MODE / 2;
  }
	 if(M[0] == 1)
	 {
		 HAL_GPIO_WritePin(GPIOB, AD_OS0_PIN_Pin, GPIO_PIN_SET);
	 }
	 else
	 {
		 HAL_GPIO_WritePin(GPIOB, AD_OS0_PIN_Pin, GPIO_PIN_RESET);
	 }
	 if(M[1] == 1)
	 {
		 HAL_GPIO_WritePin(GPIOB, AD_OS1_PIN_Pin, GPIO_PIN_SET);
	 }
	 else
	 {
		 HAL_GPIO_WritePin(GPIOB, AD_OS1_PIN_Pin, GPIO_PIN_RESET);
	 }
	 if(M[2] == 1)
	 {
		 HAL_GPIO_WritePin(GPIOB, AD_OS2_PIN_Pin, GPIO_PIN_SET);
	 }
	 else
	 {
		 HAL_GPIO_WritePin(GPIOB, AD_OS2_PIN_Pin, GPIO_PIN_RESET);
	 }
	 if(RANGE == 1)
	 {
		 HAL_GPIO_WritePin(GPIOA, AD_RANGE_PIN_Pin, GPIO_PIN_SET);
	 }
	 else
	 {
		 HAL_GPIO_WritePin(GPIOA, AD_RANGE_PIN_Pin, GPIO_PIN_RESET);
	 }

}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
	char buffer[8];
	volatile int32_t i=0;
  /* 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_SPI1_Init();
  MX_TIM2_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
	HAL_NVIC_DisableIRQ(EXTI4_IRQn);
	AD7606_STM32F407VET6(1, 0);
	HAL_NVIC_EnableIRQ(EXTI4_IRQn);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
		if(ad7606SamplingDoneFlag == 1)
		{
			__HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_2, 0);
			HAL_GPIO_WritePin(GPIOA, AD_CS_PIN_Pin, GPIO_PIN_SET);
			ad7606SamplingDoneFlag = 1;
			break;
		}
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
	for(i = 0; i<=100; i++)
	{
		sprintf(buffer, "%+1.4f", data[1][i]);
		buffer[7] = '\n';
		HAL_UART_Transmit(&huart1, (uint8_t*)buffer, sizeof(buffer), 10);
	}
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 4;
  RCC_OscInitStruct.PLL.PLLN = 168;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 4;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
	volatile uint8_t i = 0;
	volatile uint8_t first_bit = 0;
	uint8_t byte[2];
  volatile uint16_t receive;
  volatile uint8_t chari = 0;
	char buffer[8];
  if(GPIO_Pin == AD_BUSY_PIN_Pin)
	{
		if(ad7606SamplingDoneFlag == 0)
		{
			if(nums < SAMPLING_POINTS)
			{
				ad7606SamplingDoneFlag = 0;
				for(i = 0; i < 8; i++)
				{
					HAL_GPIO_WritePin(GPIOA, AD_CS_PIN_Pin, GPIO_PIN_RESET);
					HAL_SPI_Receive(&hspi1, byte, 2, 20);
					receive = (uint16_t)((byte[0] << 8) | byte[1]);
					first_bit = (byte[0] >> 7) & 1;
					if(first_bit == 1)
					{
						data[i][nums] = receive / 65535.0 * 2.0 * 10.0 - 20;
					}
					else
					{
						data[i][nums] = receive / 65535.0 * 2.0 * 10.0;
					}
					HAL_GPIO_WritePin(GPIOA, AD_CS_PIN_Pin, GPIO_PIN_SET);
				}
				nums++;
			}
			else
			{
				ad7606SamplingDoneFlag = 1;
			}
		}
	}
}
/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308

本人也将代码（完整工程文件）开源在Gitee上，有需要的可下载。
如有其他问题，可私信我。