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Original question:

TM4C123GH6PM: Required more no. of QEI for my project

TM4C123GH6PM: Is it possible to convert GPIO pin to QEI capable?

Yashwanth Gandeti
Intellectual 595 points

Part Number: TM4C123GH6PM

Hi,

I'm using TM4C123GH6PM,CCSv8.1.0,TI-RTOS - 2.16.00.08

As per my project requirement I have to use 8 QEI's. But TM4C123GH6PM is capable of 2 QEI . Is there any possibility of making normal GPIO pins as QEI capable for remaining 6 QEI. If not how can I over come this problem. Please suggest me a better solution in this.

Thanks in Advance

Regards,

Yashwanth Kumar Gandeti

  • 0
    TI__Guru*** 135355 points
    Hello Yashwanth,

    I am not sure that would be possible, I think the code to mimic the QEI functionality would introduce too much lag in response time to be viable.

    As mentioned in the other thread you have, I suggest using PWM instead. The PWM module has up to 16 outputs.