/******************************************************************************
* Include files
******************************************************************************/
#include "main.h"
#include "cw32f030_systick.h"
#include "cw32f030_rcc.h"
#include "cw32f030_gpio.h"
#include "cw32f030_adc.h"
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
//UARTx
#define DEBUG_USARTx CW_UART1
#define DEBUG_USART_CLK RCC_APB2_PERIPH_UART1
#define DEBUG_USART_APBClkENx RCC_APBPeriphClk_Enable2
#define DEBUG_USART_BaudRate 9600
#define DEBUG_USART_UclkFreq 8000000
//UARTx GPIO
#define DEBUG_USART_GPIO_CLK RCC_AHB_PERIPH_GPIOA
#define DEBUG_USART_TX_GPIO_PORT CW_GPIOA
#define DEBUG_USART_TX_GPIO_PIN GPIO_PIN_8
#define DEBUG_USART_RX_GPIO_PORT CW_GPIOA
#define DEBUG_USART_RX_GPIO_PIN GPIO_PIN_9
//GPIO AF
#define DEBUG_USART_AFTX PA08_AFx_UART1TXD()
#define DEBUG_USART_AFRX PA09_AFx_UART1RXD()
//中断
#define DEBUG_USART_IRQ UART1_IRQn
#define max_adc_cnt 50
// 按键接口 PA5和PA6
#define KEY_GPIO_PINS GPIO_PIN_5 | GPIO_PIN_6
/******************************************************************************
* Global variable definitions (declared in header file with 'extern')
******************************************************************************/
uint16_t valueAdc;
uint32_t valueAdcAcc;
volatile uint8_t gFlagIrq;
uint16_t gCntEoc = 0; // ADC转换次数
uint16_t gCntAcc = 0; // ADC转换数据累加次数
uint8_t cntSample;
volatile uint8_t gKeyFlagIrq=0;
uint16_t valueAllAdc[max_adc_cnt]; // 50组数据
uint8_t pos=0; // 保存数据的数组下表
float maxval=0; // 未充电时最大值
float stdval=0; // 未充电时最大值作为比较标准
uint8_t chgflag=0; // 充电标志
/******************************************************************************
* Local type definitions ('typedef')
******************************************************************************/
/******************************************************************************
* Local function prototypes ('static')
******************************************************************************/
void RCC_Configuration(void);
void GPIO_Configuration(void);
void UART_Configuration(void);
void NVIC_Configuration(void);
void USART_SendString(UART_TypeDef* USARTx, char *String);
void adc_Init(void);
void LED_Init(void);
void init(void);
/******************************************************************************
* Local variable definitions ('static') *
******************************************************************************/
/******************************************************************************
* Local pre-processor symbols/macros ('#define')
******************************************************************************/
/*****************************************************************************
* Function implementation - global ('extern') and local ('static')
******************************************************************************/
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] 循环延时
*
* @param nCount
*/
void Delay(__IO uint16_t nCount) {
/* Decrement nCount value */
while (nCount != 0) {
nCount--;
}
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] 配置RCC
*
*/
void RCC_Configuration(void) {
//SYSCLK = HSI = 8MHz = HCLK = PCLK
RCC_HSI_Enable(RCC_HSIOSC_DIV6);
//外设时钟使能
RCC_AHBPeriphClk_Enable(DEBUG_USART_GPIO_CLK, ENABLE);
DEBUG_USART_APBClkENx(DEBUG_USART_CLK, ENABLE);
}
/**
* @brief 配置GPIO
*
*/
void GPIO_Configuration(void) {
GPIO_InitTypeDef GPIO_InitStructure;
//UART TX RX 复用
DEBUG_USART_AFTX;
DEBUG_USART_AFRX;
GPIO_InitStructure.Pins = DEBUG_USART_TX_GPIO_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_Init(DEBUG_USART_TX_GPIO_PORT, &GPIO_InitStructure);
GPIO_InitStructure.Pins = DEBUG_USART_RX_GPIO_PIN;
GPIO_InitStructure.Mode = GPIO_MODE_INPUT_PULLUP;
GPIO_Init(DEBUG_USART_RX_GPIO_PORT, &GPIO_InitStructure);
__RCC_GPIOA_CLK_ENABLE(); // 使能GPIO的配置时钟
__RCC_GPIOB_CLK_ENABLE();
GPIO_InitStructure.IT = GPIO_IT_FALLING; //GPIO_IT_RISING | GPIO_IT_FALLING; // 释放中断和按下中断
GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
GPIO_InitStructure.Pins = KEY_GPIO_PINS;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_Init(CW_GPIOA, &GPIO_InitStructure);
//清除PA00中断标志并使能NVIC
GPIOA_INTFLAG_CLR(bv5| bv6);
NVIC_EnableIRQ(GPIOA_IRQn);
}
/**
* @brief 配置UART
*
*/
void UART_Configuration(void) {
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = DEBUG_USART_BaudRate;
USART_InitStructure.USART_Over = USART_Over_16;
USART_InitStructure.USART_Source = USART_Source_PCLK;
USART_InitStructure.USART_UclkFreq = DEBUG_USART_UclkFreq;
USART_InitStructure.USART_StartBit = USART_StartBit_FE;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(DEBUG_USARTx, &USART_InitStructure);
}
/**
* @brief ADC I/O初始化
*
*/
void ADC_PortInit(void) {
//打开GPIO时钟
REGBITS_SET(CW_SYSCTRL->AHBEN, SYSCTRL_AHBEN_GPIOA_Msk);
//打开ADC时钟
REGBITS_SET(CW_SYSCTRL->APBEN2, SYSCTRL_APBEN2_ADC_Msk);
//set PA05 as AIN5 INPUT
PA01_ANALOG_ENABLE();
}
/**
* @brief 配置NVIC
*
*/
void NVIC_Configuration(void) {
//优先级，无优先级分组
NVIC_SetPriority(DEBUG_USART_IRQ, 0);
//UARTx中断使能
NVIC_EnableIRQ(DEBUG_USART_IRQ);
}
/**
* @brief 发送字符串
*
* @param USARTx :USARTx外设
* 参数可以是:
* CW_UART1、CW_UART2、CW_UART3
* @param String :待发送的字符串
*/
void USART_SendString(UART_TypeDef* USARTx, char *String) {
while(*String != '\0') {
USART_SendData_8bit(USARTx, *String);
while(USART_GetFlagStatus(USARTx, USART_FLAG_TXE) == RESET);
String++;
}
while(USART_GetFlagStatus(USARTx, USART_FLAG_TXBUSY) == SET);
}
/******************************************************************************
* EOF (not truncated)
******************************************************************************/
#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,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
void adc_Init(void) {
ADC_InitTypeDef ADC_InitStructure;
ADC_WdtTypeDef ADC_WdtStructure;
ADC_SingleChTypeDef ADC_SingleChStructure;
//配置ADC测试IO口
ADC_PortInit();
//ADC默认值初始化
ADC_StructInit(&ADC_InitStructure);
//ADC工作时钟配置
ADC_InitStructure.ADC_ClkDiv = ADC_Clk_Div1;
//ADC模拟看门狗通道初始化
ADC_WdtInit(&ADC_WdtStructure);
//配置单通道转换模式
ADC_SingleChStructure.ADC_DiscardEn = ADC_DiscardNull;
ADC_SingleChStructure.ADC_Chmux = ADC_ExInputCH1; //选择ADC转换通道，AIN1:PA01
ADC_SingleChStructure.ADC_InitStruct = ADC_InitStructure;
ADC_SingleChStructure.ADC_WdtStruct = ADC_WdtStructure;
ADC_SingleChOneModeCfg(&ADC_SingleChStructure);
ADC_ITConfig(ADC_IT_EOC, ENABLE);
ADC_EnableIrq(ADC_INT_PRIORITY);
ADC_ClearITPendingAll();
// 设置参考电压
ADC_SetVref(ADC_Vref_BGR2p5);
//ADC_SetVref(ADC_Vref_VDDA);
//ADC使能
ADC_Enable();
ADC_SoftwareStartConvCmd(ENABLE);
}
/**
* @brief LED I/O初始化
*
*/
void LED_Init(void) {
GPIO_InitTypeDef GPIO_InitStruct;
//打开GPIO时钟
REGBITS_SET(CW_SYSCTRL->AHBEN, SYSCTRL_AHBEN_GPIOB_Msk);
/* Configure the GPIO_LED pin */
GPIO_InitStruct.Pins = GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_Init(CW_GPIOB, &GPIO_InitStruct);
//LEDs are off.
PB01_SETLOW();
}
// 初始化处理
void init(void) {
//配置RCC
RCC_Configuration();
//配置GPIO
GPIO_Configuration();
//配置UART
UART_Configuration();
//配置NVIC
NVIC_Configuration();
//使能UARTx RC中断
USART_ITConfig(DEBUG_USARTx, USART_IT_RC, ENABLE);
//USART_SendString(DEBUG_USARTx, "\r\nCW32F030 UART Interrupt\r\n");
// LED初始化
LED_Init();
// 配置ADC
adc_Init();
OLED_Init();
}
/**
* @brief Main function of project
*
* [url=home.php?mod=space&uid=266161]@return[/url] int
*/
uint8_t test_pos=0;
int main(void) {
float avg = 0;
uint8_t avgstr[8] = {'\0'};
float test[10];
uint8_t i=0;
uint8_t stopflag=0; // 检查是否停止充电的标志
init();
// 清屏
OLED_Clear(0);
//GUI_ShowString(0, 0, (uint8_t*)"Start test...", 8, 1);
valueAdcAcc=0;
gCntAcc=0;
for (pos=0; pos<max_adc_cnt; pos++) {
valueAllAdc[pos]=0;
}
pos=0;
chgflag=0;
// 灭指示灯
PB01_SETLOW();
// 复位标准比较值
maxval = 0;
// 复位充电标志
chgflag = 0;
while (1) {
// 等待转换完成
if (gFlagIrq & ADC_ISR_EOC_Msk) {
gFlagIrq = 0u;
valueAdc = ADC_GetConversionValue();
valueAllAdc[pos] = valueAdc;
pos++;
//if (flag>0 || pos == max_adc_cnt) {
if (pos == max_adc_cnt) {
pos=0;
valueAdcAcc=0;
// 计算平均值
for (i=0; i<max_adc_cnt; i++) {
valueAdcAcc += valueAllAdc[i];
}
valueAdcAcc=valueAdcAcc;
// 换算为电压值
avg = 2.5*valueAdcAcc/max_adc_cnt/4096;
//GUI_ShowNum(0, 0, valueAdcAcc/max_adc_cnt, 8, 8, 1);
sprintf((char *)avgstr, "%1.2f ", avg);
//GUI_ShowString(64, 0, avgstr, 8, 1);
GUI_ShowString(0, 0, avgstr, 8, 1);
//
if (chgflag == 0) {
// 未充电状态下，取得最大值作为比较标准
if (avg > maxval && (gKeyFlagIrq & 32) > 0) {
gKeyFlagIrq = gKeyFlagIrq ^ 32;
maxval = avg;
sprintf((char *)avgstr, "%1.2f ", maxval);
GUI_ShowString(64, 0, avgstr, 8, 1);
}
} else {
// 在充电状态下，通过和标准值进行比较，判断充电是否完成
// 连续10组数据，都低于非充电标准数据，视为充电结束
test[test_pos]=avg;
test_pos++;
if (test_pos==10) {
stopflag=0;
for (i=0; i<10; i++) {
if (test[i]<=maxval) {
stopflag++;
}
}
if (stopflag>=10) {
// 充电完成
GUI_ShowString(0, 8, (uint8_t *)"End ", 8, 1);
// 复位充电标志
chgflag = 0;
} else {
GUI_ShowString(0, 8, (uint8_t *)"... ", 8, 1);
}
}
}
}
//PB01_TOG();
ADC_SoftwareStartConvCmd(ENABLE); //启动下一次ADC转换
}
// 检查按钮1是否按下
if ((gKeyFlagIrq & 64) > 0) {
//GUI_ShowString(0, 8, (uint8_t *)"Key1", 8, 1);
gKeyFlagIrq = gKeyFlagIrq ^ 64;
// 启动充电，用LED作为指示
GUI_ShowString(0, 8, (uint8_t *)"Start ", 8, 1);
sprintf((char *)avgstr, "%1.2f ", maxval);
GUI_ShowString(64, 0, avgstr, 8, 1);
// 初始化测试用数据数组下标
test_pos=0;
PB01_SETHIGH();
// 设置充电标志
chgflag = 1;
}
}
}
/**
* @brief GPIOA中断函数
*
*/
void GPIOA_IRQHandlerCallback(void) {
if (CW_GPIOA->ISR_f.PIN5) {
// 设置标志位
gKeyFlagIrq = gKeyFlagIrq | 32;
GPIOA_INTFLAG_CLR(bv5);
}
if (CW_GPIOA->ISR_f.PIN6) {
// 设置标志位
gKeyFlagIrq = gKeyFlagIrq | 64;
GPIOA_INTFLAG_CLR(bv6);
}
}
/******************************************************************************
* EOF (not truncated)
******************************************************************************/
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