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Altera_Forum
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17 years ago

MAX 7000 - Short circuit when entering in ISP mode

Hello, I am trying to implement an In system programming feature using a EPM7512AETC144-10 but I am having problem when the CPLD enters into ISP mode. It seems to trigger a short circuit. Howe...
Altera_Forum's avatar
Altera_Forum
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17 years ago

You didn't tell, if the short circuit is observed in MAX7000 logic supply or in connected driver supply or output transistors. ISP operation is basically three-stating the outputs (and activating weak pull-ups). The MAX7000 to IR2113 interface seems dubious to me, I wonder if defined input conditions are achieved either in normal operation and MAX7000 unconfigured state?