copyedit README.md
This commit is contained in:
Dan Halbert
parent
4924e6787f
commit
e76539eeff
175
README.md
175
README.md
|
|
@ -1,105 +1,146 @@
|
|||
# Adafruit Bluefruit nRF52 Bootloader
|
||||
|
||||
This repository contains the bootloader for Adafruit nRF52 series and other popular boards
|
||||
This is a CDC/DFU/UF2 bootloader for Adafruit nRF52 boards and Nordic development boards.
|
||||
|
||||
- [Bluefruit Feather nRF52832](https://www.adafruit.com/product/3406)
|
||||
- Bluefruit Feather nRF52840 Express
|
||||
- [Adafruit Feather nRF52832](https://www.adafruit.com/product/3406)
|
||||
- Adafruit Feather nRF52840 Express
|
||||
- Nordic nRF52840DK PCA10056
|
||||
|
||||
[adafruit-nrfutil](https://github.com/adafruit/Adafruit_nRF52_nrfutil), modified version of [Nordic nrfutil](https://github.com/NordicSemiconductor/pc-nrfutil), is required to perform DFU. Install python3 to your system if it is not installed already and run this command to install adafruit-nrfutil from PyPi:
|
||||
UF2 is an easy-to-use bootloader that appears as a flash drive. You can just copy `.uf2`-format
|
||||
application images to the flash drive to load new firmware.
|
||||
See https://github.com/Microsoft/uf2 and https://github.com/adafruit/uf2-samdx1
|
||||
for more information.
|
||||
|
||||
$ pip3 install --user adafruit-nrfutil
|
||||
[adafruit-nrfutil](https://github.com/adafruit/Adafruit_nRF52_nrfutil),
|
||||
a modified version of [Nordic nrfutil](https://github.com/NordicSemiconductor/pc-nrfutil),
|
||||
is required to perform DFU.
|
||||
Install `python3` if it is not installed already and run this command to install adafruit-nrfutil from PyPi:
|
||||
|
||||
This repository depends on following submodule
|
||||
```
|
||||
$ pip3 install --user adafruit-nrfutil
|
||||
```
|
||||
|
||||
This repository depends on the following submodules:
|
||||
|
||||
- [tinyusb](https://github.com/hathach/tinyusb/tree/develop)
|
||||
- [nrfx](https://github.com/NordicSemiconductor/nrfx)
|
||||
|
||||
Get the code with following command:
|
||||
Note that `tinyusb` also includes `nrfx` as a submodule, so you need
|
||||
to initialize and update submodules with the `--recursive`` flag.
|
||||
|
||||
git clone <URL>.git Adafruit_nRF52_Bootloader
|
||||
cd Adafruit_nRF52_Bootloader
|
||||
git submodule update --init
|
||||
Clone this repo with following commands, or fork it for your own development
|
||||
|
||||
```
|
||||
git clone https://github.com/adafruit/Adafruit_nRF52_Bootloader
|
||||
cd Adafruit_nRF52_Bootloader
|
||||
git submodule update --init --recursive
|
||||
```
|
||||
|
||||
## Features
|
||||
|
||||
- DFU over Serial and OTA ( Application, Bootloader+SD )
|
||||
- Self-upgradble via Serial and OTA
|
||||
- DFU using USB Flashing Format a.k.a [UF2](https://github.com/Microsoft/uf2) (Applicatoin only)
|
||||
- Auto enter DFU briefly on startup for DTR auto-reset trick (832 only)
|
||||
- DFU over Serial and OTA ( application, Bootloader+SD )
|
||||
- Self-upgradable via Serial and OTA
|
||||
- DFU using UF2 (https://github.com/Microsoft/uf2) (application only)
|
||||
- Auto-enter DFU briefly on startup for DTR auto-reset trick (832 only)
|
||||
|
||||
## How to use
|
||||
|
||||
There are 2 pins **DFU & FRST** that bootloader will check upon reset/power
|
||||
There are two pins, `DFU` and `FRST` that bootloader will check upon reset/power:
|
||||
|
||||
- `DFU = Low and FRST = High` Enter DFU with UF2 and CDC support
|
||||
- `DFU = Low and FRST = Low` Enter DFU with OTA, can be upgraded with mobile application such as Nordic nrfConnect/Toolbox
|
||||
- `DFU = High and FRST = Low` Factory Reset mode, erase firmware application and its data
|
||||
- `DFU = High and FRST = High` Goto application code if it is present, otherwise enter DFU with UF2
|
||||
- Depending on value of the `GPREGRET` register, Bootloader can enter any of above mode (plus a CDC only mode for Arduino). `GPREGRET` is set by application before performing a softreset.
|
||||
- `DFU = LOW` and `FRST = HIGH`: Enter bootloader with UF2 and CDC support
|
||||
- `DFU = LOW` and `FRST = LOW`: Enter bootloader with OTA, to upgrade with a mobile application such as Nordic nrfConnect/Toolbox
|
||||
- `DFU = HIGH and `FRST = LOW`: Factory Reset mode: erase firmware application and its data
|
||||
- `DFU = HIGH and `FRST = HIGH`: Go to application code if it is present, otherwise enter DFU with UF2
|
||||
- The `GPREGRET` register can also be set to force the bootloader can enter any of above modes (plus a CDC-only mode for Arduino).
|
||||
`GPREGRET` is set by the application before performing a soft reset.
|
||||
|
||||
For the exact pin location, please check your board definition for details
|
||||
On the Nordic PCA10056 DK board, `DFU` is connected to **Button1**, and `FRST` is connected to **Button2**.
|
||||
So holding down **Button1** while clicking **RESET** will put the board into USB bootloader mode, with UF2 and CDC support.
|
||||
Holding down **Button2** while clicking **RESE**T will put the board into OTA (over-the-air) bootloader mode.
|
||||
|
||||
For other boards, please check the board definition for details.
|
||||
|
||||
## Burn & Upgrade with pre-built binaries
|
||||
|
||||
You can burn and/or upgrade bootloader with either jlink or dfu (serial) to a specific pre-built binary version without the hassle to install toolchain and compile the code. This is preferred if you are not developing/customizing the bootloader
|
||||
You can burn and/or upgrade the bootloader with either a J-link or DFU (serial) to a specific pre-built binary version
|
||||
without the hassle of installing a toolchain and compiling the code.
|
||||
This is preferred if you are not developing/customizing the bootloader.
|
||||
|
||||
To flash version `6.1.0r0` using jlink
|
||||
To flash version `6.1.0r0` using J-Link:
|
||||
|
||||
$ make BOARD=feather_nrf52840_express VERSION=6.1.0r0 flash
|
||||
```
|
||||
make BOARD=feather_nrf52840_express VERSION=6.1.0r0 flash
|
||||
```
|
||||
|
||||
To upgrade with dfu serial
|
||||
|
||||
$ make BOARD=feather_nrf52840_express VERSION=6.1.0r0 dfu-flash
|
||||
```
|
||||
make BOARD=feather_nrf52840_express VERSION=6.1.0r0 dfu-flash
|
||||
```
|
||||
|
||||
You can run following command for the list of pre-builtin binaries
|
||||
Pre-builtin binaries are in the `bin` directory:
|
||||
|
||||
$ ls bin/*
|
||||
bin/feather_nrf52832:
|
||||
2.0.1 5.0.0 6.1.0r0
|
||||
```
|
||||
bin/feather_nrf52832/
|
||||
2.0.1
|
||||
5.0.0
|
||||
6.1.0r0
|
||||
|
||||
bin/feather_nrf52840_express:
|
||||
6.1.0r0
|
||||
bin/feather_nrf52840_express
|
||||
6.1.0r0
|
||||
|
||||
bin/pca10056:
|
||||
6.1.0r0
|
||||
bin/pca10056:
|
||||
6.1.0r0
|
||||
```
|
||||
|
||||
|
||||
Note: bootloader is downgradable, since the binary release is merged of bootloader and Softdevice, you could freely "upgrade" to any version you like.
|
||||
Note: The bootloader can be downgraded. Since the binary release is a merged version of
|
||||
of both bootloader and the Nordic SoftDevice, you can freely upgrade/downgrade to any version you like.
|
||||
|
||||
## Compile with latest codes
|
||||
## How to compile and build
|
||||
|
||||
You should only continue if you are looking to develop bootloader for your own. Having a jlink to **de-brick** your device is a must.
|
||||
You should only continue if you are looking to develop bootloader for your own.
|
||||
You must have have a J-Link available to "unbrick" your device.
|
||||
|
||||
### Option 1: Build with makefile
|
||||
### Option 1: Build with Makefile
|
||||
|
||||
Prerequisite
|
||||
Prerequisites
|
||||
|
||||
- ARM GCC
|
||||
- Nordic's [nRF5x Command Line Tools](http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.tools%2Fdita%2Ftools%2Fnrf5x_command_line_tools%2Fnrf5x_installation.html)
|
||||
|
||||
To build
|
||||
To build:
|
||||
|
||||
$ make BOARD=feather_nrf52840_express all
|
||||
```
|
||||
make BOARD=feather_nrf52840_express all
|
||||
```
|
||||
|
||||
To flash bootloader
|
||||
To flash the bootloader:
|
||||
|
||||
$ make BOARD=feather_nrf52840_express flash
|
||||
```
|
||||
make BOARD=feather_nrf52840_express flash
|
||||
```
|
||||
|
||||
To flash SoftDevice (chip erase)
|
||||
To flash SoftDevice (and chip erase):
|
||||
|
||||
$ make BOARD=feather_nrf52840_express sd
|
||||
```
|
||||
make BOARD=feather_nrf52840_express sd
|
||||
```
|
||||
|
||||
To erase chip
|
||||
To erase all of flash:
|
||||
|
||||
$ make BOARD=feather_nrf52840_express erase
|
||||
```
|
||||
make BOARD=feather_nrf52840_express erase
|
||||
```
|
||||
|
||||
For the list of supported boards, try to type make without `BOARD=`
|
||||
For the list of supported boards, run `make` without `BOARD=` :
|
||||
|
||||
$ make
|
||||
You must provide a BOARD parameter with 'BOARD='
|
||||
Supported boards are: feather_nrf52840_express feather_nrf52840_express pca10056
|
||||
Makefile:90: *** BOARD not defined. Stop
|
||||
```
|
||||
$ make
|
||||
You must provide a BOARD parameter with 'BOARD='
|
||||
Supported boards are: feather_nrf52840_express feather_nrf52840_express pca10056
|
||||
Makefile:90: *** BOARD not defined. Stop
|
||||
```
|
||||
|
||||
### Common makefile problems
|
||||
|
||||
|
|
@ -107,35 +148,41 @@ For the list of supported boards, try to type make without `BOARD=`
|
|||
|
||||
If you get the following error ...
|
||||
|
||||
$ make BOARD=feather_nrf52840_express all
|
||||
Compiling file: main.c
|
||||
/bin/sh: /usr/bin/arm-none-eabi-gcc: No such file or directory
|
||||
make: *** [_build/main.o] Error 127
|
||||
```
|
||||
$ make BOARD=feather_nrf52840_express all
|
||||
Compiling file: main.c
|
||||
/bin/sh: /usr/bin/arm-none-eabi-gcc: No such file or directory
|
||||
make: *** [_build/main.o] Error 127
|
||||
```
|
||||
|
||||
... you may need to edit the `Makefile` and update the `GNU_INSTALL_ROOT` to point to the root path of your GCC ARM toolchain.
|
||||
... you may need to edit the `Makefile` and update `GNU_INSTALL_ROOT` to point to the root path of your GCC ARM toolchain.
|
||||
|
||||
#### 2. `mergehex: No such file or directory`
|
||||
|
||||
Make sure that `mergehex` is available from the command-line. This binary is
|
||||
part of of Nordic's nRF5x Command Line Tools
|
||||
part of Nordic's nRF5x Command Line Tools.
|
||||
|
||||
#### 3. `make: nrfjprog: No such file or directory`
|
||||
|
||||
Make sure that `nrfjprog` is available from the command-line. This binary is
|
||||
part of of Nordic's nRF5x Command Line Tools.
|
||||
part of Nordic's nRF5x Command Line Tools.
|
||||
|
||||
On POSIX-type systems you can temporarily add the path to `nrfjprog` via a
|
||||
variation on the following command:
|
||||
|
||||
```
|
||||
$ export PATH=$PATH:/Users/Kevin/Downloads/nRF5x-Command-Line-Tools_9_7_2_OSX/nrfjprog
|
||||
$ export PATH=$PATH:/location/of/nRF5x-Command-Line-Tools_9_7_2_OSX/nrfjprog
|
||||
```
|
||||
|
||||
### Option 2: Build using Segger Embeded Studio
|
||||
### Option 2: Build using Segger Embedded Studio
|
||||
|
||||
For better debugging you can also use [SES](https://www.segger.com/products/development-tools/embedded-studio/).
|
||||
For easier debugging you can also use [SES](https://www.segger.com/products/development-tools/embedded-studio/).
|
||||
The project file is located at `src/segger/Adafruit_nRF52_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 BOARD=feather_nrf52840_express sd`
|
||||
mentioned above )
|
||||
> **Note**: SES only flashes the bootloader when you click download, not the SoftDevice.
|
||||
You need to flash the SoftDevice beforehand if you haven't already done so.
|
||||
As mentioned above do something like:
|
||||
|
||||
```
|
||||
make BOARD=feather_nrf52840_express sd
|
||||
```
|
||||
|
|
|
|||
Loading…
Reference in New Issue