(please see previous thread for history - PQII/ PQIII Flash Programmer )
Sorry, we do not offer JTAG/COP interface specification to customers, so you can not implement your own flash programmer for PQ2/PQ3 devices using internal debugging interface of PQ2/PQ3 device.
The only thing I can offer here is implement flash programming via standard JTAG commands, i.e. place PQ2/PQ3 device to JTAG boundary scan mode and program external flash, connected to PQ2/PQ3 device by "bit-banging" on PQ2/PQ3 pins using JTAG boundary scan commands. In this case the processor itself will be in reset mode, so you do not need PQ2/PQ3 debug interface description.
Thanks Alexander.
Do you know of any example/ Primer/ Application Note which gives details of the same?
i.e. "bit-banging" on PQ2/PQ3 pins using JTAG boundary scan commands..
Thanks in advance.
No, I do not think we have an example ready to share, but I do not expect it will be difficult for you to implement this by yourself, because you previously indicated you have skills to implement a debugger over the same interface.
Have a great day,
Alexander
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