The Echo R1 is a new open-hardware music player design, based
on the STM32H743 microcontroller. Schematics and hardware
documentation for it can be found here:
- https://github.com/amachronic/echoplayer
This is an incomplete port. The bootloader can be loaded using
OpenOCD and it can draw to the LCD using SPI. SDRAM is working
but hasn't been extensively tested.
Change-Id: Ifd2bee15c49868fbc989683d3ca14dce48bf3e18
