Em 21/11/2011 17:12, Electron escreveu:
> 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.
>>>
>>> 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.


If I'm not mistaken, the modules that share interrupt vectors also share
pins, so only one of them will be active at any time.


Isaac

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.