#define LED_1_ON 70
#define LED_2_ON 140
#define LED_3_ON 210
#define LED_4_ON 280
#define LED_5_ON 350
#define LED_6_ON 420
#define LED_7_ON 490
#define LED_8_ON 560
void Get_Led_Current(void)
{
ADC_ChannelCmd(ADC1, ADC_Channel_15, ENABLE);
Temp1=Read_ADC_Value();
ADC_ChannelCmd(ADC1, ADC_Channel_15, DISABLE);
// ADC_ChannelCmd(ADC1, ADC_Channel_16, ENABLE);
// Temp2=Read_ADC_Value();
// ADC_ChannelCmd(ADC1, ADC_Channel_16, DISABLE);
//
// ADC_ChannelCmd(ADC1, ADC_Channel_18, ENABLE);
// Temp3=Read_ADC_Value();
// ADC_ChannelCmd(ADC1, ADC_Channel_18, DISABLE);
//
// ADC_ChannelCmd(ADC1, ADC_Channel_21, ENABLE);
// Temp4=Read_ADC_Value();
// ADC_ChannelCmd(ADC1, ADC_Channel_21, DISABLE);
if(Temp1);if(Temp2);if(Temp3);if(Temp4);
}
void Print_Out(unsigned int VVV)
{
Uart1_SendString("\r\nADC采样值 = " , 14);
Uart1_SendData((VVV / 1000) + '0');
Uart1_SendData((VVV / 100 % 10) + '0');
Uart1_SendData((VVV % 100 / 10) + '0');
Uart1_SendData((VVV % 10) + '0');
Uart1_SendData('\r');
Uart1_SendData('\n');
}
//--------------------------------------------------------------------------------------------------------------------------------
void main(void)
{
UART1_Init();
TIM4_Config();
ADC1_Config();
LED_Init();
Get_Led_Current();
GPIO_ResetBits(GPIOB, GPIO_Pin_1);
// GPIO_SetBits(GPIOB, GPIO_Pin_1);
while (1)
{
// if(GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_3))GPIO_ResetBits(GPIOB, GPIO_Pin_1);
if(Tim4_1mS_mark==0xaa)//1ms定时标志。
{
Tim4_1mS_mark=0;
Flag_do++;//1ms自加一次。
switch(Flag_do)
{
case LED_1_ON:
GPIO_SetBits(GPIOB, GPIO_Pin_1);//--1
break;
case LED_2_ON:
//------------------------------------------------------------------------------------------------------------------------------------------------
Get_Led_Current();Print_Out(Temp1);Temp1=0;//此段注释掉否的波形如tek0.png和tek1.png，高电平时间多了18ms的时差，是为什么呢？
//-------------------------------------------------------------------------------------------------------------------------------------------------
GPIO_ResetBits(GPIOB, GPIO_Pin_1);//--0
break;
case LED_3_ON:Flag_do=0;
break;
case LED_4_ON:break;
case LED_5_ON:break;
case LED_6_ON:break;
case LED_7_ON:break;
default:break;
}
}
}
}
//------------------------------------------------------------------------------
串口，ADC ，定时器配置如下：
void UART1_Init(void)
{
USART_DeInit(USART1); //将USART1的各个寄存器值恢复为缺省值
/* 使能USART1时钟外设 */
CLK_PeripheralClockConfig(CLK_Peripheral_USART1, ENABLE);
/* 映射UART1的IO口：TX-->PA2 RX-->PA3 */
SYSCFG_REMAPPinConfig(REMAP_Pin_USART1TxRxPortA, ENABLE);
/* 配置UART1的RX&TX的IO口 */
GPIO_Init(UART1_RX_PORT, UART1_RX_PINS, GPIO_Mode_In_PU_No_IT);
GPIO_Init(UART1_TX_PORT, UART1_TX_PINS, GPIO_Mode_Out_PP_High_Slow);
GPIO_ExternalPullUpConfig(UART1_RX_PORT, UART1_RX_PINS, ENABLE);
GPIO_ExternalPullUpConfig(UART1_TX_PORT, UART1_TX_PINS, ENABLE);
/* UART1初始化 */
USART_Init(USART1,
(uint32_t)9600, //波特率9600
USART_WordLength_8b, //数据宽度8位
USART_StopBits_1, //一位停止位
USART_Parity_No, //无奇偶校验
(USART_Mode_TypeDef)(USART_Mode_Tx | USART_Mode_Rx));//发送&接收模式
}
void Uart1_SendData(u8 data)
{
while(USART_GetFlagStatus(USART1 , USART_FLAG_TXE) == RESET); //判断发送数据寄存器是否为空
USART_SendData8(USART1 , (u8)data); //向发送寄存器写入数据
}
/*******************************************************************************
**函数名称：void Uart1_SendString(unsigned char *data , unsigned char strlen)
**功能描述：向串口连续发送多个字符
**入口参数：unsigned char *data ， unsigned char strlen
**输出：无
*******************************************************************************/
void Uart1_SendString(unsigned char *data , unsigned int strlen)
{
unsigned int datalen;
for(datalen = 0 ; datalen < strlen ; datalen++)
{
Uart1_SendData(data[datalen]);
}
}
void TIM4_Config(void)
{
/*
- TIM4时钟为系统时钟，也就是HSI/8 = 2MHz，配置每1ms更新一次应如下设置
2M / (16 * 125) = 1000Hz = 1ms；16为预分频值，125为周期值
*/
/* 使能 TIM4 C时钟 */
CLK_PeripheralClockConfig(CLK_Peripheral_TIM4, ENABLE);
/* Time4基本配置 */
TIM4_TimeBaseInit(TIM4_Prescaler_16, (125-1));
/* 清除TIM4更新标志位 */
TIM4_ClearFlag(TIM4_FLAG_Update);
/* 使能更新中断 */
TIM4_ITConfig(TIM4_IT_Update, ENABLE);
/* 使能总中断 */
enableInterrupts();
/* 使能 TIM4 */
TIM4_Cmd(ENABLE);
}
void ADC1_Config(void)
{
//打开ADC1外设的时钟
CLK_PeripheralClockConfig(CLK_Peripheral_ADC1, ENABLE);
//配置ADC1的GPIO为浮空输入模式
GPIO_Init(GPIOB, GPIO_Pin_4, GPIO_Mode_In_FL_No_IT);//ADC_Channel_11
GPIO_Init(GPIOB, GPIO_Pin_2, GPIO_Mode_In_FL_No_IT);//ADC_Channel_16
GPIO_Init(GPIOB, GPIO_Pin_0, GPIO_Mode_In_FL_No_IT);//ADC_Channel_18
GPIO_Init(GPIOD, GPIO_Pin_2, GPIO_Mode_In_FL_No_IT);//ADC_Channel_21
GPIO_Init(GPIOB, GPIO_Pin_3, GPIO_Mode_In_FL_No_IT);
//初始化ADC1，单次转换模式，12位分辨率，ADC时钟2分频
// ADC_Init(ADC1, ADC_ConversionMode_Single, ADC_Resolution_12Bit, ADC_Prescaler_2);
ADC_Init(ADC1, ADC_ConversionMode_Single, ADC_Resolution_12Bit, ADC_Prescaler_1);
//配置ADC采样时间，384个时钟周期ADC_SamplingTime_4Cycles
// ADC_SamplingTimeConfig(ADC1, ADC_Group_SlowChannels, ADC_SamplingTime_384Cycles);
ADC_SamplingTimeConfig(ADC1, ADC_Group_SlowChannels, ADC_SamplingTime_4Cycles);
//打开ADC1的22通道
ADC_ChannelCmd(ADC1, ADC_Channel_15, ENABLE);
//使能ADC1
ADC_Cmd(ADC1, ENABLE);
ADC_ChannelCmd(ADC1, ADC_Channel_15, DISABLE);
}
uint16_t Read_ADC_Value(void)
{
uint16_t temp;
//启动一次ADC转换
ADC_SoftwareStartConv(ADC1);
//等待转换结束
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
//读取ADC值
temp = ADC_GetConversionValue(ADC1);
//返回ADC值
return temp;
}
//-------------------------------------------------------------------------
//---------------定时器4的中断如下：
INTERRUPT_HANDLER(TIM4_UPD_OVF_TRG_IRQHandler,25)
{
/* In order to detect unexpected events during development,
it is recommended to set a breakpoint on the following instruction.
*/
Counts++;
Tim4_1mS_mark=0xaa;
/* 清除中断标志位 */
TIM4_ClearITPendingBit(TIM4_IT_Update);
}
/** |
|
楼主
标题置顶
标题高亮
