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serial nor driver from mx25rxx35 flash memories

Posted: Sun May 03, 2020 10:12 pm
by geoffrey.brown
The ST IoT discovery board has a macronix mx25r6435f nor flash memory. I've attached a driver for the chibios serial nor device. This has been lightly tested but seems to work for WSP1,2,and 4 modes.

Important Note: the stm32 quadspi device doesn't properly handle the WP# line for programming except quad program. To use spi, wspi1, wspi2 you must pull that pin high.