MPC5744P does not work properly for PWM input capture based on MBD

Yunhe — Sat, 25 Dec 2021 11:44:02 GMT

Hi,

When I configured input capture based on MBD to measure the frequency and duty cycle of PWM, I encountered a problem:
First of all, I configured one input capture according to the official example, as follows:

The code generated by this model is working properly，Then I continued to configure a few others, but found that they did not work properly, the configuration is as follows：

Through debug, it was found that this inoperable code did not generate a configured interrupt, that is, Input Capture 2 Flag Interrupt, and the corresponding interrupt function is as follows:

Of course, I have set the corresponding interrupt in the model and made sure that the PWM signal is input to the chip, as follows：

Later, normal operation can be realized through the register, and the corresponding configuration is as follows:

void ETimer_EtcInit(u8 ucETimerNo, u8 ucChNo) { pETIMER[ucETimerNo]->ENBL.R &= (~((1<<ucChNo)));// disable Timer channels /* CTRL1---0x3F00 * bit15-13: CNTMODE = 1 count rising edge of primary source * bit12-8: PRIsrc=0x1F ip bus clock divide by 128 * bit12-8: PRIsrc=0x1C ip bus clock divide by 16 * bit7: ONCE = 0 count repeatedly * bit6: LENGTH = 0 continue counting to roll over * bit5: DIR = 0 count up * bit4-0: SECsrc=n counter #n input pin */ #if (PWM_FRE_RANGE == RANGE_HIGH) pETIMER[ucETimerNo]->CH[ucChNo].CTRL1.R = 0x3C00 | (ucChNo); #else pETIMER[ucETimerNo]->CH[ucChNo].CTRL1.R = 0x3F00 | (ucChNo); #endif pETIMER[ucETimerNo]->CH[ucChNo].COMP1.R = 0xFFFF; /* CCCTRL---0x0264 * bit15-13: CLC2 = 0 never preload * bit12-10: CLC1 = 0 never preload * bit9-8: CMPMODE = 2 comp1 for counting up; comp2 for counting down * bit7-6: CPT2MODE= 1 CAPT2 capture falling edge * bit5-4: CPT1MODE= 2 CAPT1 capture rising edge * bit3-2: CFWM = 1 capture FIFO water mark * bit1: ONESHOT = 0 free running(not one shot mode) * bit0: ARM = 0 input capture disable */ pETIMER[ucETimerNo]->CH[ucChNo].CCCTRL.R = 0x0264; /* INTDMA---0x0080 * bit15: ICF2DE = 0 Input Capture 2 Flag DMA disable * bit14: ICF1DE = 0 Input Capture 1 Flag DMA disable * bit13: CMPLD2DE= 0 Comparator Load Register 2 Flag DMA disable * bit12: CMPLD1DE= 0 Comparator Load Register 1 Flag DMA disable * bit9: WDFIE = 0 Watchdog Flag Interrupt disable * bit8: RDFIE = 0 Redundant Channel Flag Interrupt disable * bit7: ICF2IE = 1 Input Capture 2 Flag Interrupt enable * bit6: ICF1IE = 0 Input Capture 1 Flag Interrupt disable * bit5: IEHFIE = 0 Input Edge High Flag Interrupt disable * bit4: IELFIE = 0 Input Edge Low Flag Interrupt disable * bit3: TOFIE = 0 Timer Overflow Flag Interrupt enable * bit2: TCF2IE = 0 Timer Compare 2 Flag Interrupt disable * bit1: TCF1IE = 0 Timer Compare 1 Flag Interrupt disable * bit0: TCFIE = 0 Timer Compare Flag Interrupt disable */ pETIMER[ucETimerNo]->CH[ucChNo].INTDMA.R = 0x0080; //Input Capture 2 pETIMER[ucETimerNo]->CH[ucChNo].CTRL3.R = 1; pETIMER[ucETimerNo]->ENBL.R |= (1<<ucChNo); // enable Timer channels pETIMER[ucETimerNo]->CH[ucChNo].CCCTRL.B.ARM = 1;// input capture enable }

Finally, after configuring the model according to the corresponding register, the code generated by the model still does not work properly。

I put all the models in the attachment:
The first model is a model that can work normally, and the second is a model that does not work properly。

Kind regards,

zhang.

Model-Based Design Toolbox (MBDT)のトピックMPC5744P does not work properly for PWM input capture based on MBD

MPC5744P does not work properly for PWM input capture based on MBD