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CPLD programming with a PIC?

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mImoto

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Hello,

I was wondering if it is possible to reprogram a CPLD with a microcontroller in a easy way. The idea is that the PIC gets the file via canbus and download it (at the same time or after) to the CPLD. I would appreciate any suggestion.

Thanks a lot and best regards,

mimoto
 

Hello mImoto,

it is possible to program a CPLD via JTAG with a uC. Source-Code for doing that can be downloaded from Altera. But i don't think that a PIC has enough memory (Flash and RAM) to store the JTAG Code.
It would be easier to config a FPGA via a seriel interface. That is much easier than implemanting JTAG.

by,
cube007
 

there are some application notes from Xilinx available how to use a uC to programm a CPLD or FPGA, for example:
**broken link removed**
Their schematic is based on a 8051, but it should be possible to port it to a PIC.


Mik
 

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