* stm32f429-discovery: mostly copy-paste from ChibiOS-Contrib * STM32F429-discovery has external SDRAM * F429-Discovery: add simple memory test for SDRAM (disabled) * Revert "random piece of https://github.com/dron0gus/rusefi/tree/f429-discovery-ram-dev" This reverts commit c58a2f5ecb. Co-authored-by: rusefillc <sdfsdfqsf2334234234>
c58a2f5ecb