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Altera_Forum
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12 years ago

Multi Device AS configuration scheme

Dear Sir, In the multi-device AS configuration in which devices receive the same data with multiple .sof, nCONFIG, nSTATUS and CONF_DONE pins of Master and slave FPGA’s are shorte...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

1) The FPGA's internal configuration state machine relies on two of these signals being shorted between devices when multiple FPGAs are configured from the same configuration device.

2) Yes, you can monitor CONF_DONE separately.

3) CONF_DONE is an open-drain signal will require a pull-up resistor for it to work correctly. So, you'll need one pull-up resistor per CONF_DONE signal.

Regards,

Alex