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Altera_Forum
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11 years ago

EP3C16E144 JTAG and AS problem!

The JTAG chain can't be find, but the AS configuration is successful, why? MSEL1 is connected to 2.5V directly, MSEL0 and MSEL2 to GND. nCE is connected to GND directly. TCK is pull down wi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Hi,

have you also checked that none of the voltage rails have some overshoot on startup or at time the FPGA starts operation (i.e. increased current flow) that exceeds the limits given in the datasheet?