|
|
#include "SWM221.h"
|
|
|
|
|
|
|
|
|
void SerialInit(void);
|
|
|
void TestSignal(void);
|
|
|
|
|
|
int main(void)
|
|
|
{
|
|
|
SystemInit();
|
|
|
|
|
|
SerialInit();
|
|
|
|
|
|
TestSignal(); //产生测试信号供Input Capture功能测量
|
|
|
|
|
|
PORT_Init(PORTA, PIN14, PORTA_PIN14_TIMR0_IN, 1);
|
|
|
|
|
|
TIMR_Init(TIMR0, TIMR_MODE_IC, CyclesPerUs, 10000000, 0); //最大测量脉宽1us*10_000_000 = 10s
|
|
|
|
|
|
TIMR_IC_Init(TIMR0, 1, 1);
|
|
|
|
|
|
TIMR_Start(TIMR0);
|
|
|
|
|
|
while(1==1)
|
|
|
{
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void TestSignal(void)
|
|
|
{
|
|
|
PWM_InitStructure PWM_initStruct;
|
|
|
|
|
|
PORT_Init(PORTA, PIN3, PORTA_PIN3_PWM0A, 0);
|
|
|
|
|
|
PWM_initStruct.Mode = PWM_EDGE_ALIGNED;
|
|
|
PWM_initStruct.Clkdiv = 60; //F_PWM = 60M/60 = 1M
|
|
|
PWM_initStruct.Period = 10000; //1M/10000 = 100Hz
|
|
|
PWM_initStruct.HdutyA = 2500; //2500/10000 = 25%，高电平脉宽2.5ms，低电平脉宽7.5ms
|
|
|
PWM_initStruct.DeadzoneA = 0;
|
|
|
PWM_initStruct.IdleLevelA = 0;
|
|
|
PWM_initStruct.IdleLevelAN= 0;
|
|
|
PWM_initStruct.OutputInvA = 0;
|
|
|
PWM_initStruct.OutputInvAN= 0;
|
|
|
PWM_initStruct.HdutyB = 7500; //5000/10000 = 50%
|
|
|
PWM_initStruct.DeadzoneB = 0;
|
|
|
PWM_initStruct.IdleLevelB = 0;
|
|
|
PWM_initStruct.IdleLevelBN= 0;
|
|
|
PWM_initStruct.OutputInvB = 0;
|
|
|
PWM_initStruct.OutputInvBN= 0;
|
|
|
PWM_initStruct.UpOvfIE = 0;
|
|
|
PWM_initStruct.DownOvfIE = 0;
|
|
|
PWM_initStruct.UpCmpAIE = 0;
|
|
|
PWM_initStruct.DownCmpAIE = 0;
|
|
|
PWM_initStruct.UpCmpBIE = 0;
|
|
|
PWM_initStruct.DownCmpBIE = 0;
|
|
|
PWM_Init(PWM0, &PWM_initStruct);
|
|
|
PWM_Init(PWM1, &PWM_initStruct);
|
|
|
|
|
|
PWM_Start(PWM0_MSK);
|
|
|
}
|
|
|
|
|
|
|
|
|
void TIMR0_Handler(void)
|
|
|
{
|
|
|
if(TIMR_IC_CaptureH_INTStat(TIMR0))
|
|
|
{
|
|
|
TIMR_IC_CaptureH_INTClr(TIMR0);
|
|
|
|
|
|
printf("H: %dus\r\n", TIMR_IC_GetCaptureH(TIMR0));
|
|
|
}
|
|
|
else if(TIMR_IC_CaptureL_INTStat(TIMR0))
|
|
|
{
|
|
|
TIMR_IC_CaptureL_INTClr(TIMR0);
|
|
|
|
|
|
printf("L: %dus\r\n", TIMR_IC_GetCaptureL(TIMR0));
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void SerialInit(void)
|
|
|
{
|
|
|
UART_InitStructure UART_initStruct;
|
|
|
|
|
|
PORT_Init(PORTA, PIN0, PORTA_PIN0_UART0_RX, 1); //GPIOA.0配置为UART0 RXD
|
|
|
PORT_Init(PORTA, PIN1, PORTA_PIN1_UART0_TX, 0); //GPIOA.1配置为UART0 TXD
|
|
|
|
|
|
UART_initStruct.Baudrate = 57600;
|
|
|
UART_initStruct.DataBits = UART_DATA_8BIT;
|
|
|
UART_initStruct.Parity = UART_PARITY_NONE;
|
|
|
UART_initStruct.StopBits = UART_STOP_1BIT;
|
|
|
UART_initStruct.RXThreshold = 3;
|
|
|
UART_initStruct.RXThresholdIEn = 0;
|
|
|
UART_initStruct.TXThreshold = 3;
|
|
|
UART_initStruct.TXThresholdIEn = 0;
|
|
|
UART_initStruct.TimeoutTime = 10;
|
|
|
UART_initStruct.TimeoutIEn = 0;
|
|
|
UART_Init(UART0, &UART_initStruct);
|
|
|
UART_Open(UART0);
|
|
|
}
|
|
|
|
|
|
/******************************************************************************************************************************************
|
|
|
* 函数名称: fputc()
|
|
|
* 功能说明: printf()使用此函数完成实际的串口打印动作
|
|
|
* 输 入: int ch 要打印的字符
|
|
|
* FILE *f 文件句柄
|
|
|
* 输 出: 无
|
|
|
* 注意事项: 无
|
|
|
******************************************************************************************************************************************/
|
|
|
int fputc(int ch, FILE *f)
|
|
|
{
|
|
|
UART_WriteByte(UART0, ch);
|
|
|
|
|
|
while(UART_IsTXBusy(UART0));
|
|
|
|
|
|
return ch;
|
|
|
}
|