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Altera_Forum
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14 years ago

m25p26

Hi everybody, I have finished a pcb design with a cyclone III Ep3c25q240, it is configurated in AS mode. There are two connector (10 pins), one for the JTAG and the other for the AS. When I dow...
Altera_Forum's avatar
Altera_Forum
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14 years ago

I have measured with the scope some pins, for example in nCE appears a voltage of 0.8v and in nSTATUS 1.8V, nCONFIG 2.5v and CONF_DONE 2.5V. The banks of the fpga are fed by 2.5v. Also I have probed the SFL design and the flash doesn`t configure with the jam file (no device id identification). I attach two captures with the logic analyzer in the AS interface. The first one when I plug in the board and it tries to configure itself, and the second one when I try to configure the flash via the SFL driver.