Original question:
1.According to the TMS570LS0714 chip manual (P14), the channels of ECAP1 and ECAP2 are multiplexed with MIBSPI3.
figure 1
figure 2
2.It can be seen in the EB configuration tool that the implementation of the ICU function can only be configured through the N2HET module.
Can someone do a favor for me？
Hello,
Firstly, it should select PORT_PIN_MUX_ALT2 in PortMuxPinFunc(in your picture).
Secondly, Pin_41(N2HET1[15]) is assigned to PWM according to ICU_Driver_userguide(see figure 1 and figure 2).
Thirdly,ICU cannot collect data (duty cycle and period) during debugging(see figure 3).
By the way,The function I called in the test code is the next three:
Icu_Init(&IcuConfigSet_0),
Icu_StartSignalMeasurement(IcuChannel_ECAP4),
Icu_GetDutyCycleValues(IcuChannel_ECAP4,&Duty_Cycle_Values),
Figure 1
Figure 2
Figure 3
Can you try N2HET[22] and N2HET[24] first, because those pin's default functionality is N2HET? So you don't need to configure the pinmux.I'd like to narrow down on this issue.
1、N2HET1[22] and N2HET1[24] do not implement multiplexing functionality with ECAP（see figure 1）.
2、if we want to implement the functionality of ICU（ECAP）, we only use N2HET(see figure 2). But ECAP implement multiplexing functionality with MIBSPI(see figure 1).
3、I have had a try to call Icu_StopSignalMeasurement(IcuChannel_ECAP4)，but it does’t work.
figure 1
figure 2
So now it only use N2HET1[23], but I can't get measurements by calling function.
