TI的 FAE您好！
在使用时 PWM1 PWM2 PWM3 为CPU1 控制 PWM4 PWM5 PWM6为CPU2控制 ADC转换器 A B C D都使用
我把ADC C 和ADC D 配置为CPU1控制 使用PWM1 触发ADC采样；可以实现ADC A BC D都能转换
EALLOW;
//allocate PWM1, PWM2 and PWM3 to CPU1
DevCfgRegs.CPUSEL0.bit.EPWM1 = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL0.bit.EPWM2 = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL0.bit.EPWM3 = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL0.bit.EPWM4 = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL0.bit.EPWM5 = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL0.bit.EPWM6 = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL11.bit.ADC_A = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL11.bit.ADC_B = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL11.bit.ADC_C = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL11.bit.ADC_D = Peripheral_Con_CPU1;
EDIS;
void SetupADCCEpwm(uint16_t channel)
{
Uint16 acqps;
//determine minimum acquisition window (in SYSCLKS) based on resolution
if(ADC_RESOLUTION_12BIT == AdccRegs.ADCCTL2.bit.RESOLUTION)
{
acqps = 14; //75ns
}
else
{ //resolution is 16-bit
acqps = 63; //320ns
}
//Select the channels to convert and end of conversion flag
EALLOW;
AdccRegs.ADCSOC0CTL.bit.CHSEL = channel;
AdccRegs.ADCSOC0CTL.bit.ACQPS = acqps;
AdccRegs.ADCSOC0CTL.bit.TRIGSEL = 0x05;
AdccRegs.ADCINTSEL1N2.bit.INT1SEL = 0;
AdccRegs.ADCINTSEL1N2.bit.INT1E = 0;
AdccRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;
EDIS;
}
void SetupADCDEpwm(uint16_t channel)
{
Uint16 acqps;
//determine minimum acquisition window (in SYSCLKS) based on resolution
if(ADC_RESOLUTION_12BIT == AdcdRegs.ADCCTL2.bit.RESOLUTION)
{
acqps = 14; //75ns
}
else
{ //resolution is 16-bit
acqps = 63; //320ns
}
//Select the channels to convert and end of conversion flag
EALLOW;
AdcdRegs.ADCSOC0CTL.bit.CHSEL = channel;
AdcdRegs.ADCSOC0CTL.bit.ACQPS = acqps;
AdcdRegs.ADCSOC0CTL.bit.TRIGSEL = 0x05;
AdcdRegs.ADCINTSEL1N2.bit.INT1SEL = 0;
AdcdRegs.ADCINTSEL1N2.bit.INT1E = 0;
AdcdRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;
EDIS;
}
但我把ADC C 和 ADC D配置为CPU2控制 用PWM4触发 就不成功了
EALLOW;
//allocate PWM1, PWM2 and PWM3 to CPU1
DevCfgRegs.CPUSEL0.bit.EPWM1 = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL0.bit.EPWM2 = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL0.bit.EPWM3 = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL0.bit.EPWM4 = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL0.bit.EPWM5 = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL0.bit.EPWM6 = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL11.bit.ADC_A = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL11.bit.ADC_B = Peripheral_Con_CPU1;
DevCfgRegs.CPUSEL11.bit.ADC_C = Peripheral_Con_CPU2;
DevCfgRegs.CPUSEL11.bit.ADC_D = Peripheral_Con_CPU2;
EDIS;
void SetupADCCEpwm(uint16_t channel)
{
Uint16 acqps;
//determine minimum acquisition window (in SYSCLKS) based on resolution
if(ADC_RESOLUTION_12BIT == AdccRegs.ADCCTL2.bit.RESOLUTION)
{
acqps = 14; //75ns
}
else
{ //resolution is 16-bit
acqps = 63; //320ns
}
//Select the channels to convert and end of conversion flag
EALLOW;
AdccRegs.ADCSOC0CTL.bit.CHSEL = channel;
AdccRegs.ADCSOC0CTL.bit.ACQPS = acqps;
AdccRegs.ADCSOC0CTL.bit.TRIGSEL = 0x0b;
AdccRegs.ADCINTSEL1N2.bit.INT1SEL = 0;
AdccRegs.ADCINTSEL1N2.bit.INT1E = 0;
AdccRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;
EDIS;
}
void SetupADCDEpwm(uint16_t channel)
{
Uint16 acqps;
//determine minimum acquisition window (in SYSCLKS) based on resolution
if(ADC_RESOLUTION_12BIT == AdcdRegs.ADCCTL2.bit.RESOLUTION)
{
acqps = 14; //75ns
}
else
{ //resolution is 16-bit
acqps = 63; //320ns
}
//Select the channels to convert and end of conversion flag
EALLOW;
AdcdRegs.ADCSOC0CTL.bit.CHSEL = channel;
AdcdRegs.ADCSOC0CTL.bit.ACQPS = acqps;
AdcdRegs.ADCSOC0CTL.bit.TRIGSEL = 0x0b;
AdcdRegs.ADCINTSEL1N2.bit.INT1SEL = 0;
AdcdRegs.ADCINTSEL1N2.bit.INT1E = 0;
AdcdRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;
EDIS;
}
我确定进入了PWM4的中断
