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stm32f429 sdio bootloader

Question asked by eb3484 on May 13, 2016
Latest reply on May 13, 2016 by Clive One
I want to update firmware by using the sd card with my stm32f429 mcu. I will connect the sd card to mcu sdio pins ( 1 bit only) , so i will not use spi port for sd card. I just want to learn whether it is possible to update firmware by using sdio connection (not with spi) or not. (In application note the bootloader operation can be used by using the communication port peripherals ( USART, I2C, SPI, CANBUS, USB) )