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Altera_Forum
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8 years ago

Can not reprogram the FPGA/JTAG does not respond

Hello everyone, I have several custom pcb board with MAX 10 Fpga inside. I programmed the FPGAs with a .pof file that gets stored on to the flash. After that I am unable to reprogram the boards a...
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Altera_Forum
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8 years ago

Is your JTAGEN pin tied low?

If your design has enabled dual-purpose configuration pins and the device has booted from internal FLASH then you will need to drive JTAGEN high to enable the JTAG pins as dedicated JTAG pins.

Refer to section 3.1 'dual-purpose configuration pins' in the "max 10 fpga configuration user guide (https://www.altera.com/en_us/pdfs/literature/hb/max-10/ug_m10_config.pdf)". Refer to table 26 for JTAGEN behaviour.

Cheers,

Alex