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Problem with C8051F120 GPIO

Rajesh N

Hi,

I am working on Silabs C8051F120 Microcontroller.

I have written a Interrupt code where I am toggling a pin P1.1 , The code is working fine and pin is toggling after specified period. but when I change the PIN to P7.1 the Toggling doest take place?

Is there anything other that I have to configure ??

Kindly give me u r suggestions,

Rajesh

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  • 0 in reply to ninja Z

    Thanx Ninja,

    I sloved the problem, there problem now is that I have enabled External memory Interface with Lower Ports, thus I have written a program where the Lower Ports of the external memory where I am just toggling PINS of 8255 in a Infinite loop and in between a Interrupt will toogle of the pin P7.0.

    Now this Pin P7.0 is not toggeling , I dont know why this is not toggling??

    Does External Interface disables all pin operations????

Reply
  • 0 in reply to ninja Z

    Thanx Ninja,

    I sloved the problem, there problem now is that I have enabled External memory Interface with Lower Ports, thus I have written a program where the Lower Ports of the external memory where I am just toggling PINS of 8255 in a Infinite loop and in between a Interrupt will toogle of the pin P7.0.

    Now this Pin P7.0 is not toggeling , I dont know why this is not toggling??

    Does External Interface disables all pin operations????

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