- Ask a related questionWhat is a related question?A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
Hello,
Recently I made a project for cpu2 while I have existing code for cpu1.
On cpu1, i am using pwm, adc and inputxbar, while I am using spi and usart on CPU2.
The code works fine on both cpu if i dont add this line to cpu1 code - "InputXbarRegs.INPUT5SELECT = 8".
But when I add the above line to cpu1 code, the cpu2 code hangs and it keeps waiting either for spi send or usart send function.
Please tell me what is the link between InputXbarRegs.INPUT5SELECT on cpu1 and spi/usart on cpu2, I have an application on which I have to use both things(xbar on cpu1 and spi/usart on cpu2).
But i am not able to do so.
Please help me what wrong I am doing or is there any conflict.
Also I have one more doubt. When i use "IPCBootCPU2(C1C2_BROM_BOOTMODE_BOOT_FROM_FLASH);" function on cpu1, then only I am able to run both codes without debugger, and when i use this function, then I am not able to run the code with debugger. Pleas also tell what is the need of this function.
Please replay as soon as possible.
Which GPIO number are you using for your SPI/SCI?
The only thing about INPUT5 of the INPUTXBAR (INPUTXBAR5) is that it is directly connected to the EPWM SYNC Input.
And on this device that is by default the trigger for the EPWM1 PHS Sync. If you dont have EPWM1 PHSEN you should be okay with your EPWM.
For you PINMUX, maybe there is something incorrect in your setup. Do you have the GPIO8 configured as a GPIO or as a PERIPHERAL function? GMUX and MUX settings for the GPIO Pinmux options are worthy of a check.
On CPU2, how do you know it is hanging and on what line of code is it hanging? Is it waiting for a DATA RECEIVE?
