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Altera_Forum
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13 years ago

Cyclone IV E JTAG issues - VCCA voltage level

Hi all, I have a custom board with Cyclone IV E (EP4CE115-F484). I am trying to access it via JTAG from Quartus, but keep receiving the "Error: Can't access JTAG chain". I check the Quar...
Altera_Forum's avatar
Altera_Forum
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13 years ago

Hi,

in case you are about to remove the BGA, I would suggest to use this replacement as an option to check the correct voltages at the power pins, configuration pins ans the interconnection between these pins and the pulls... Just to ensure that everything is ok with the PCB itself...

It's difficult to measure at the pins with BGAs... :-)