QSPI Commands differ between FLASH chip and nRF52840

[jcondon]

I am working on a driver for the Adesto AT25QL641 QSPI Flash Memory chip. Comparing the hardcoded nRF52840 QSPI instruction set and the AT25QL641, they are 90% identical except for Quad-page program input/output (nRF52840 - 0x38 vs. AT25Q 0x33). Other than the instruction ID it looks like all of the signaling should match up fine. Is there anything that can be done to make the nRF52 send out a different instruction ID for that command?

Thanks!

[Turbo J]

Do you need full write speed?

If you can write a bit slower, just use PP or PP2O commands (single bit or dual bit write instead of 4-bit write mode).

[jcondon]

That is our current plan since we don't need full speed at the moment. It just sucks to have expected full speed via QSPI (I'd like QPI) and be stopped because the instruction ID was etched into silicon.