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IS25LP256 FLASH slow writening

Thomas8607
Senior
Hi

Does anyone use IS25LP256 Flash memory in QSPI mode for STM32H7xx mcu?
Or did you make an External Loader?

I made one, but it takes 2x as long to upload as the W25Q256 (I also made the external loader for this)

28MB -> ~5min IS25LP256, 2.5min W25Q256
The Pagewrite works only with instruction 0x12, but this is not quad mode

The external loader works, only slow.
The test in the main.c works with only 0x12 instruction Page wite

Thank you!
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