IS25LP032D-JKLE Issues With Bootloader

[HaydosR]

I've made a custom board using an ESP32-S3 processor that I'm having trouble flashing code onto.

Its currently using IS25LP032D-JKLE which is giving me Stage 2 bootloader checksum issues, even after a full-chip erase. When prototype boards were made using W25Q32JVZPIQ there were no issues, but with the ISSI chip we're now seeing a 100% failure rate.

I've pored over the datasheets and can see no differences, but maybe Im too close to see any issues.

If hardware compatible, what can be done software-wise to use this chip (save me resoldering ~100 PCBs).

[HaydosR]

idf.py menuconfig and latest test Logs attached

[HaydosR]

Issue was the SPI Flash speed, which had to be set to 40Mhz, auto settings defaulted to 80Mhz which was too fast for this chip (Max 50Mhz from the datasheet)