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KMico
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6 years ago

Issue with Micron MT25QL128 booting up at cold

I have a design that has a Cyclone V FPGA using a MT25QL128 quad-spi config flash. The config flash is having an issue booting up at cold (< -10 deg C) when utilizing Active Serial x4. If I create a ...
KMico's avatar
KMico
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6 years ago

I am using a 5CGTFD5C5F23I7 Cyclone V FPGA. At cold the nCONFIG pin of the FPGA stays low. I've also noticed that the CSn, SCLK, and Data lines of the flash will continuously toggle when at cold, and will repeatedly do so until the part warms up enough to program and they exhibit their normal behavior (when tested on the bench using freeze spray).

-KM