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Solution ID: rd09231999_7598
Last Modified: Feb 09, 2006
Product Category: N/A
Product Area: N/A
Product Sub-area: N/A
Problem
Is there any way to monitor the ISP_DONE bit? (MAX® 7000AE, MAX 7000B, MAX 3000A)
Solution
The ISP_DONE bit is the last bit programmed during MAX 7000AE,
MAX 7000B, or MAX 3000A in-system programming. It is used to
protect these devices from damage should programming be interrupted
prior to completion. This is done by preventing all I/O pins from driving
until programming is completed. As such, this bit is not
connected to an external pin.
To see if your MAX device was successfully programmed, you can add a
pin to your design that drives out high. Connect this pin
to a pull-down resistor on your board. If the pin drives high after
programming is complete, then the device is functioning in user mode and
has been successfully programmed. If it does not drive high, then the device
was not successfully programmed.
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If the programming is not successful, the programmer (MAX+PLUS® II,
third party tester, or embedded Jam™ player) will give an error.
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Altera does not warrant that this solution will work for the customer's intended purpose and disclaims all liability for use of or reliance on the solution.
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