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Add new target (pinetime-graphics) that flash the bootloader logo into the spi flash memory.

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JF
2020-06-06 19:28:01 +02:00
parent e7723598a6
commit 46b8bf9fc1
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bootloader/README.md
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# Bootloader
## Bootloader graphic
The bootloader loads a graphic (Pinetime logo) from the SPI Flash memory. If this graphic is not loaded in the memory, the LCD will display garbage (the content of the SPI flash memory).
The SPI Flash memory is not accessible via the SWD debugger. Use the firmware 'pinetime-graphics' to load the graphic into memory. All you have to do is build it and program it at address 0x00 :
- Build:
```
$ make pinetime-graphics
```
- Program (using OpenOCD for example) :
```
program pinetime-graphics.bin 0
```
- Let it run for ~10s (it does nothing for 5 seconds, then write the logo into the SPI memory, then (slowly) displays it on the LCD).
## Bootloader binary
The binary comes from https://github.com/lupyuen/pinetime-rust-mynewt/releases/tag/v4.1.7

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bootloader/boot_graphics.h Normal file
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