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in a custom design int# IO is connectted to a led. Usually the led can be lighton by reset FX3, now i want to soft control it. what i need to do?
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Hello,
INT# is interrupt or control signal and cannot be used as a GPIO.
The INT# output signal can only be controlled by GPIF II.
This pin can be either left floating or pulled up to VIO1 if it is not used.
For example if FPGA is connected to Fx3 through GPIF interface this interrupt pin can be used for trigger from FX3 to FPGA
"Usually the led can be lighton by reset FX3"
=> Does this happen everytime?
If so, can you please probe that pin with an oscilloscope and then see the voltage on that pin during reset?
Regards,
Yashwant
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Hello,
INT# is interrupt or control signal and cannot be used as a GPIO.
The INT# output signal can only be controlled by GPIF II.
This pin can be either left floating or pulled up to VIO1 if it is not used.
For example if FPGA is connected to Fx3 through GPIF interface this interrupt pin can be used for trigger from FX3 to FPGA
"Usually the led can be lighton by reset FX3"
=> Does this happen everytime?
If so, can you please probe that pin with an oscilloscope and then see the voltage on that pin during reset?
Regards,
Yashwant