172 lines
4.9 KiB
C
172 lines
4.9 KiB
C
/**
|
||
******************************************************************************
|
||
* @file main.c
|
||
* @author fire
|
||
* @version V1.0
|
||
* @date 2019-xx-xx
|
||
* @brief AP3216C 读光照实验
|
||
******************************************************************************
|
||
* @attention
|
||
*
|
||
* 实验平台:野火 STM32 H750 开发板
|
||
* 论坛 :http://www.firebbs.cn
|
||
* 淘宝 :http://firestm32.taobao.com
|
||
*
|
||
******************************************************************************
|
||
*/
|
||
|
||
#include "main.h"
|
||
#include "stm32h7xx.h"
|
||
#include "./usart/bsp_debug_usart.h"
|
||
#include "./led/bsp_led.h"
|
||
#include "./delay/core_delay.h"
|
||
#include "./i2c/bsp_i2c.h"
|
||
#include "./ap3216c/ap3216c.h"
|
||
|
||
/**
|
||
* @brief 主函数
|
||
* @param 无
|
||
* @retval 无
|
||
*/
|
||
int main(void)
|
||
{
|
||
/**/
|
||
float ALS = 0.0;
|
||
uint16_t PS = 0;
|
||
uint16_t IR = 0;
|
||
uint8_t IntStatus;
|
||
|
||
HAL_Init();
|
||
/* 配置系统时钟为480 MHz */
|
||
SystemClock_Config();
|
||
/* 开启ICache */
|
||
SCB_EnableICache();
|
||
|
||
LED_GPIO_Config();
|
||
/* 初始化内核延时 */
|
||
HAL_InitTick(5);
|
||
/*初始化USART 配置模式为 115200 8-N-1，中断接收*/
|
||
DEBUG_USART_Config();
|
||
|
||
printf("\r\n 欢迎使用野火 STM32 H750 开发板。\r\n");
|
||
printf("\r\n 这是一个三合一光照传感器测试例程 \r\n");
|
||
|
||
printf(" 芯片初始化中.....\n");
|
||
/* 初始化 光照传感器 */
|
||
ap3216c_init();
|
||
|
||
while(1)
|
||
{
|
||
IntStatus = ap3216c_get_IntStatus(); // 先读状态位，读ADC数据位会清除状态位（默认设置）
|
||
ALS = ap3216c_read_ambient_light();
|
||
PS = ap3216c_read_ps_data();
|
||
IR = ap3216c_read_ir_data();
|
||
|
||
printf("\n光照强度是：%.2fLux\n红外强度是：%d\n", ALS, IR);
|
||
|
||
if (PS == 55555) // IR 太强 PS 数据无效
|
||
printf("IR 太强 PS 数据无效\n");
|
||
else
|
||
{
|
||
printf("接近距离是：%d\n", PS & 0x3FF);
|
||
}
|
||
|
||
if ((PS >> 15) & 1)
|
||
printf("物体接近\n");
|
||
else
|
||
printf("物体远离\n");
|
||
|
||
if (IntStatus & 0x1)
|
||
printf("ALS 产生中断\n");
|
||
|
||
if (IntStatus >> 1 & 0x1)
|
||
printf("PS 产生中断\n");
|
||
LED2_TOGGLE;
|
||
HAL_Delay(225);// 最小采样间隔225ms
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* @brief System Clock 配置
|
||
* system Clock 配置如下:
|
||
* System Clock source = PLL (HSE)
|
||
* SYSCLK(Hz) = 480000000 (CPU Clock)
|
||
* HCLK(Hz) = 240000000 (AXI and AHBs Clock)
|
||
* AHB Prescaler = 2
|
||
* D1 APB3 Prescaler = 2 (APB3 Clock 100MHz)
|
||
* D2 APB1 Prescaler = 2 (APB1 Clock 100MHz)
|
||
* D2 APB2 Prescaler = 2 (APB2 Clock 100MHz)
|
||
* D3 APB4 Prescaler = 2 (APB4 Clock 100MHz)
|
||
* HSE Frequency(Hz) = 25000000
|
||
* PLL_M = 5
|
||
* PLL_N = 160
|
||
* PLL_P = 2
|
||
* PLL_Q = 4
|
||
* PLL_R = 2
|
||
* VDD(V) = 3.3
|
||
* Flash Latency(WS) = 4
|
||
* @param None
|
||
* @retval None
|
||
*/
|
||
static void SystemClock_Config(void)
|
||
{
|
||
RCC_ClkInitTypeDef RCC_ClkInitStruct;
|
||
RCC_OscInitTypeDef RCC_OscInitStruct;
|
||
HAL_StatusTypeDef ret = HAL_OK;
|
||
|
||
/*使能供电配置更新 */
|
||
MODIFY_REG(PWR->CR3, PWR_CR3_SCUEN, 0);
|
||
|
||
/* 当器件的时钟频率低于最大系统频率时，电压调节可以优化功耗，
|
||
关于系统频率的电压调节值的更新可以参考产品数据手册。 */
|
||
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
|
||
|
||
while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
|
||
|
||
/* 启用HSE振荡器并使用HSE作为源激活PLL */
|
||
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
|
||
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
|
||
RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
|
||
RCC_OscInitStruct.CSIState = RCC_CSI_OFF;
|
||
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
||
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
|
||
|
||
RCC_OscInitStruct.PLL.PLLM = 5;
|
||
RCC_OscInitStruct.PLL.PLLN = 160;
|
||
RCC_OscInitStruct.PLL.PLLP = 2;
|
||
RCC_OscInitStruct.PLL.PLLR = 2;
|
||
RCC_OscInitStruct.PLL.PLLQ = 4;
|
||
|
||
RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
|
||
RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
|
||
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
|
||
if(ret != HAL_OK)
|
||
{
|
||
while(1) { ; }
|
||
}
|
||
|
||
/* 选择PLL作为系统时钟源并配置总线时钟分频器 */
|
||
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | \
|
||
RCC_CLOCKTYPE_HCLK | \
|
||
RCC_CLOCKTYPE_D1PCLK1 | \
|
||
RCC_CLOCKTYPE_PCLK1 | \
|
||
RCC_CLOCKTYPE_PCLK2 | \
|
||
RCC_CLOCKTYPE_D3PCLK1);
|
||
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
|
||
RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
|
||
RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
|
||
RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
|
||
RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
|
||
RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
|
||
RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
|
||
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4);
|
||
if(ret != HAL_OK)
|
||
{
|
||
while(1) { ; }
|
||
}
|
||
}
|
||
|
||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|