At 17.36 2011.11.21, you wrote:
>> The ports exist, I can read and write them fine using the 4 byte FIFO
>> in the PIC UART's, but I need to make them interrupt driven rather than
>> have to pole them. The Chip is the PIC32MX695F512L. and I am using
>> UART1 for communications with a Telit GSM Module, UART2 for an RFID
>> reader, UART4 for a console interface and UART5 to drive an RS485 BUS.
>> I am also using the USB and the SPI BUS both of which are working, but
>> I am not sure that that would impact on the UART4 interrupt handling
>> though.
>>=20
>> Cheers
>> Chris
>
>Somewhere (again it was probably the Microchip Forum) someone noted=20
>that these chips share interrupts around peripherals - rather like the=20
>PIC16 & 18 families ...
>
>It's not just a case of correctly identifying the appropriate=20
>interrupt share? I haven't dealt with the PIC32 family so have no=20
>experience with programming them.

Yes, there are more interrupt sources than interrupt vectors, and this
may indeed be the case.

I invite Chris to check the reference manuals on interrupts, I assumed
by default that he had already verified this.

Document # 61108F:
http://ww1.microchip.com/downloads/en/DeviceDoc/61108F.pdf

perhaps even a look at the UART one may shed light on the shared vector
hypotesis:
http://ww1.microchip.com/downloads/en/DeviceDoc/61107F.pdf=20

I hope this is useful.

Cheers,
Mario




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