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GMaji's avatar
GMaji
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7 years ago

FPGA ADC and IO signal conditioning circuit

Hi Team, We are using FPGA 10M25SAE144C8G for our project. We have seen few FPGA failure in the PIN which are connected via SDI, SDO and CLK line of FPGA pin with External ADC ADS7952 IC. Please let...
SreekumarR_G_Intel's avatar
SreekumarR_G_Intel
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7 years ago
Hello Goutam , iam not sure how i can tell the reason for short to gnd only on that SPI lines. Failure looks wired to me .....:( ..Can I ask is that Bus is multiplexed with any other channel ? Did you check Max and ADC chip also not driving at the same time ? I am assuming voltage is 3.3V for FPGA and ADC chip correct ? thank you , Regardsa, Sree