STC官网由库函数例程，STC15系列库函数与例程测试版V1.0.rar
http://www.****ducst/STC-LIB/STC ... 95%E7%89%88V1.0.rar
void PCA_config(void)
{
PCA_InitTypeDef PCA_InitStructure;
PCA_InitStructure.PCA_Clock = PCA_Clock_12T; //PCA_Clock_1T, PCA_Clock_2T, PCA_Clock_4T, PCA_Clock_6T, PCA_Clock_8T, PCA_Clock_12T, PCA_Clock_Timer0_OF, PCA_Clock_ECI
PCA_InitStructure.PCA_IoUse = PCA_P24_P25_P26_P27; //PCA_P12_P11_P10_P37, PCA_P34_P35_P36_P37, PCA_P24_P25_P26_P27
PCA_InitStructure.PCA_Interrupt_Mode = DISABLE; //ENABLE, DISABLE
PCA_InitStructure.PCA_Polity = PolityHigh; //优先级设置 PolityHigh,PolityLow
PCA_InitStructure.PCA_RUN = DISABLE; //ENABLE, DISABLE
PCA_Init(PCA_Counter,&PCA_InitStructure);
PCA_InitStructure.PCA_Mode = PCA_Mode_PWM; //PCA_Mode_PWM, PCA_Mode_Capture, PCA_Mode_SoftTimer, PCA_Mode_HighPulseOutput
PCA_InitStructure.PCA_PWM_Wide = PCA_PWM_8bit; //PCA_PWM_8bit, PCA_PWM_7bit, PCA_PWM_6bit
PCA_InitStructure.PCA_Interrupt_Mode = DISABLE; //PCA_Rise_Active, PCA_Fall_Active, ENABLE, DISABLE
PCA_InitStructure.PCA_Value = 128 << 8; //对于PWM,高8位为PWM占空比
PCA_Init(PCA0,&PCA_InitStructure);
PCA_InitStructure.PCA_Mode = PCA_Mode_Capture; //PCA_Mode_PWM, PCA_Mode_Capture, PCA_Mode_SoftTimer, PCA_Mode_HighPulseOutput
PCA_InitStructure.PCA_PWM_Wide = 0; //PCA_PWM_8bit, PCA_PWM_7bit, PCA_PWM_6bit
PCA_InitStructure.PCA_Interrupt_Mode = PCA_Fall_Active | ENABLE; //(PCA_Rise_Active, PCA_Fall_Active) or (ENABLE, DISABLE)
PCA_InitStructure.PCA_Value = 0; //对于捕捉, 这个值没意义
PCA_Init(PCA1,&PCA_InitStructure);
PCA_InitStructure.PCA_Mode = PCA_Mode_HighPulseOutput; //PCA_Mode_PWM, PCA_Mode_Capture, PCA_Mode_SoftTimer, PCA_Mode_HighPulseOutput
PCA_InitStructure.PCA_PWM_Wide = 0; //PCA_PWM_8bit, PCA_PWM_7bit, PCA_PWM_6bit
PCA_InitStructure.PCA_Interrupt_Mode = ENABLE; //PCA_Rise_Active, PCA_Fall_Active, ENABLE, DISABLE
PCA_InitStructure.PCA_Value = 30000; //对于软件定时, 为匹配比较值
PCA_Init(PCA2,&PCA_InitStructure);
CR = 1;
}
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