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Altera_Forum
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7 years ago

nStatus held low Cyclone IV EP4CE6E22

Hi, I've designed a board with a Cyclone IV EP4CE6E22. I have a problem with the config on the JTAG chain. My device is not detected. I've checked all Vcc (I/O=3.3V, PLLA = 2.5V, VccINT= ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
7 years ago

Hi,

Thanks for your reply.

1. I can't test .sof because of my device is not detected.

2. MSEL are tied to GND, nCE to GND, nCONFIG, nSTATUS and conf_done pins with 10k pull-up.

For the moment, I just use JTAG configuration with ALTERA USB BLASTER. Because my device is not detected. If I can pass this first step, I will connect the EPCQ4.

I 've checked the steps of the link you send me. No result...

I've replaced the CYCLONE too and try an other USB BLASTER.

The power-up screenshot of the 3 supply 1.2V, 2.5V , 3.3V.

https://www.alteraforum.com/forum/attachment.php?attachmentid=15605

Best regards

Alain