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microbuilder 2018-05-14 17:37:06 +02:00
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README.md
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@ -1,13 +1,15 @@
# Adafruit nRF52840 Bootloader
This repository contains the USB bootloader for Adafruit nRF52840 boards (1MB flash, 256KB SRAM).
This repository depend on the [tinyusb](https://github.com/hathach/tinyusb/tree/develop) as submodule, after cloing this repo you need to run this command
This repository contains the USB bootloader for Adafruit nRF52840 boards (1MB
flash, 256KB SRAM). This repository depend on [tinyusb](https://github.com/hathach/tinyusb/tree/develop) as submodule. After
cloning this repo you need to run the following command:
git submodule update --init
## Option 1: Build with makefile
Navigate to `src/singlebank` (recommended) or `src/dualbank` (work in progress), and use feather52840 target for building bootloader.
Navigate to `src/singlebank` (recommended) or `src/dualbank` (work in progress),
and use feather52840 target for building bootloader.
make feather52840
@ -23,16 +25,14 @@ To only flash S140
#### 1. `arm-none-eabi-gcc`: No such file or directory
If you get the following error:
If you get the following error ...
```
$ make feather52840
Compiling file: dfu_single_bank.c
/bin/sh: /usr/bin/arm-none-eabi-gcc: No such file or directory
make: *** [_build/dfu_single_bank.o] Error 127
```
$ make feather52840
Compiling file: dfu_single_bank.c
/bin/sh: /usr/bin/arm-none-eabi-gcc: No such file or directory
make: *** [_build/dfu_single_bank.o] Error 127
You make need to edit the `Makefile` (for example `src/singlebank/Makefile`),
... you may need to edit the `Makefile` (for example `src/singlebank/Makefile`),
and update the `GNU_INSTALL_ROOT` to point to the root path of your GCC ARM
toolchain.
@ -55,4 +55,9 @@ $ export PATH=$PATH:/Users/Kevin/Downloads/nRF5x-Command-Line-Tools_9_7_2_OSX/nr
## Option 2: Build using Segger Embeded Studio
For better debugging you can also use SES, The project file is located at `src/segger/nrf52840_bootloader.emProject`. Note: the SES only flash the bootloader when you click download, you need to flash Softdevice beforehand if you haven't done so ( use `make flash_sd` mentioned above )
For better debugging you can also use [SES](https://www.segger.com/products/development-tools/embedded-studio/).
The project file is located at `src/segger/nrf52840_bootloader.emProject`.
> **Note**: SES only flashes the bootloader when you click download, you need to
flash Softdevice beforehand if you haven't done so ( use `make flash_sd`
mentioned above )