# deviation-bootloader

**Repository Path**: li19910513/deviation-bootloader

## Basic Information

- **Project Name**: deviation-bootloader
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: t8sg
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2021-05-02
- **Last Updated**: 2024-02-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# deviation-bootloader
Replacement Bootloader for Deviation supported transmitters.

**NOTE: Unless you are a developer, you should NOT install this bootloader yet!**

**Installing this bootloader requires a custom Deviation build to enable, which is not provided by current nightlies**

This bootloader currently provides the following functionality for supported transmitters:
 * LCD display when in bootloader mode
 * support for SPI read/write
 * non-encrypted DFU files

### Currently supported transmitters
 * Jumper T8SG-V1
 * Jumper T8SG-V2
 * Walkera Devo-7e
 * Walkera Devo-7e w/ 256k mod
 
###Compiling
*It is important to properly build for the intended tarnsmitter*
 * T8SGV1: `make TXVER=T8SGV1`
 * T8SGV2: `make TXVER=T8SGV2`
 * T8SGV2+: `make TXVER=T8SGV2+`
 * Devo7e: `make TXVER=DEVO7E`
 * Devo7e w/256k: `make TXVER=DEVO7E-256`

### Installing the bootloader
If you currently have the default Walkera/Jumper Bootloader installed:
 * Install `installer-enc-<target>.dfu` using Deviation-Uploader

If you currently have an older version of Deviation Bootloader (>= 0.10.0):
 * Install `installer-<target>.dfu` using Deviation-Uploader

### Developer testing
If you would like to preserve your existing bootloader, we currently support a two-stage bootload option.
Set the 'TWO_STAGE' variable=1 in the makefile.  Only the unified t8sg build will work with the two-stage
bootloader!  You cannot load any other builds when using this mode of operation

### Installing a deviation build when using deviation-bootloader
Encryption must be removed prior to installing a new firmware when using the Deviation Bootloader.
This can be done by re-runniing `utils/dfu.py` with `-c 0` and with 'Unified' in the description string.
For example, to install the stock t8sg-v2+ image
after installing deviation-bootloader:
```
make t8sg_v2_plus
./../utils/dfu.py --name "t8sg_v2_plus-v5.0.0-xxxxxxx Unified Firmware" -c 0 -b 0x08003000:t8sg_v2_plus.bin t8sg_v2_plus.dfu
```