1.1 SPI Bootloader
This example application shows how to use the Bootloader Library to bootload an application using SPI protocol.
Bootloader Application
This is a bootloader application which resides from starting location of the device flash memory
It uses SPI peripheral library in non-interrupt mode
Trigger Methods
It uses the On board Switch as bootloader trigger pin to force enter the bootloader at reset of device
It checks for bootloader request pattern (0x5048434D) from the starting 16 Bytes of RAM to force enter bootloader at reset of device
SDCARD Host Application
This is a embedded SPI host application which sends the application image stored in the SD card to the target board over the SPI communication
The user application binary is copied into an SD card and inserted in the SD card connected on the host board
Test Application
This is a test application which resides from end of bootloader size in device flash memory
It will be loaded into flash memory by bootloader application
It blinks an LED and provides console output
It uses the On board Switch to trigger the bootloader from firmware (May not be supported on all devices)
Once the switch is pressed it loads first 16 bytes of RAM with bootloader request pattern (0x5048434D) and resets the device
Development Kits The following table provides links to documentation on how to build and run SPI bootloader on different development kits