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PeterToo's avatar
PeterToo
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5 years ago

Cyclone IV FPGA startup issue

I am using the EP4CE40 FPGA with EPCS128 configuration device, and having problem on power up. What happen was it used to power up fine. But after I made some changes to my code and compiled, the F...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Have you try to monitor the nStatus and nConfig pin? Are you able to configure the FPGA using Quartus Programmer?


PeterToo's avatar
PeterToo
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5 years ago

Thanks for the reply.

Monitoring the nStatus and nConfig is my next step. Our board is small and those signal are hard to get to. Here are the steps we tried:

1. Program the FPGA with sof file through JTAG - result, FPGA works fine.

2. Program the Configuration Flash with jic file through the FPGA with JTAG - result, FPGA no startup properly. Please note that the programming of the Configuration Flash was completed and verified successfully.

Thanks, Peter