alvierahman90/qmk_firmware
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

update flashing guide with pre-compiled binary

Browse Source
This commit is contained in:
Jack Humbert 2018-06-21 23:40:13 -04:00 committed by GitHub
parent e20f6f6378
commit f0b918ac84
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
docs/isp_flashing_guide.md
View File

@ -19,12 +19,11 @@ If you're having trouble flashing/erasing your board, and running into cryptic e
Memory write error, use debug for more info.
commands.c:360: Error writing memory data. (err -4)
You're likely going to need to ISP flash your board/device to get it working again. Luckily, this process is pretty straight-forward, provided you have any extra programmable keyboard, Arduino, or Teensy 2.0/Teensy 2.0++. There are also dedicated ISP flashers available for this, but most cost >$15, and it's assumed that if you are googling this error, this is the first you've heard about ISP flashing, and don't have one readily available (whereas you might have some other AVR board). __We'll be using a Teensy 2.0 with Windows 10 in this guide__ - if you are comfortable doing this on another system, please consider editing this guide and contributing those instructions!
You're likely going to need to ISP flash your board/device to get it working again. Luckily, this process is pretty straight-forward, provided you have any extra programmable keyboard, Arduino, or Teensy 2.0/Teensy 2.0++. There are also dedicated ISP flashers available for this, but most cost >$15, and it's assumed that if you are googling this error, this is the first you've heard about ISP flashing, and don't have one readily available (whereas you might have some other AVR board). __We'll be using a Teensy 2.0 with Windows 10 in this guide__ - if you are comfortable doing this on another system, please consider editing this guide and contributing those instructions!
## Software Needed
* [The Arduino IDE](https://www.arduino.cc/en/Main/Software)
* [Teensyduino](https://www.pjrc.com/teensy/td_download.html) (if you're using a Teensy)
* [Teensy Loader](https://www.pjrc.com/teensy/loader.html) (to program the Teensy)
* [WinAVR](http://www.ladyada.net/learn/avr/setup-win.html) (Windows)
## Wiring
@ -38,35 +37,15 @@ This is pretty straight-forward - we'll be connecting like-things to like-things
Flasher VCC <-> Keyboard VCC
Flasher GND <-> Keyboard GND
## The ISP Firmware
## The ISP Firmware (now pre-compiled)
Make sure your keyboard is unplugged from any device, and plug in your Teensy.
1. Run Arduino after you have everything installed
2. Select `Tools > Board * > Teensy 2.0`
3. Click `File > Examples > 11.ArduinoISP > ArduinoISP`
Then scroll down until you see something that looks like this block of code:
// Configure which pins to use:
// The standard pin configuration.
#ifndef ARDUINO_HOODLOADER2
#define RESET 0 // Use 0 (B0) instead of 10
#define LED_HB 11 // Use 11 (LED on the Teensy 2.0)
#define LED_ERR 8 // This won't be used unless you have an LED hooked-up to 8 (D3)
#define LED_PMODE 7 // This won't be used unless you have an LED hooked-up to 7 (D2)
And make the changes in the last four lines. If you're using something besides the Teensy 2.0, you'll want to choose something else that makes sense for `LED_HB`. We define `RESET` as `0`/`B0` because that's what's close - if you want to use another pin for some reason, [you can use the pinouts to choose something else](https://www.pjrc.com/teensy/pinout.html).
Once you've made your changes, you can click the Upload button (right arrow), which will open up the Teensy flasher app - you'll need to press the reset button on the Teensy the first time, but after that, it's automatic (you shouldn't be flashing this more than once, though). Once flashed, the orange LED on the Teensy will flash on and off, indicating it's ready for some action.
Download the [`util/teensy_2.0_ISP_B0.hex`](https://github.com/qmk/qmk_firmware/blob/master/util/teensy_2.0_ISP_B0.hex) file from the repo, and load it onto your Teensy 2.0 using the Teensy Loader GUI or command line application.
## The `.hex` File
Before flashing your firmware, you're going to need to and do a little preparation. We'll be appending [this bootloader (also a .hex file)](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_atmega32u4_1_0_0.hex) to the end of our firmware by opening the original .hex file in a text editor, and removing the last line, which should be `:00000001FF` (this is an EOF message). After that's been removed, copy the entire bootloader's contents and paste it at the end of the original file, and save it.
Before flashing your firmware, you're going to need to and do a little preparation. We'll be appending [this bootloader (also a .hex file)](https://github.com/qmk/qmk_firmware/blob/master/util/bootloader_atmega32u4_1_0_0.hex) (atmega32u4 only - other bootloaders are available in the [`util/` folder](https://github.com/qmk/qmk_firmware/tree/master/util)) to the end of our firmware by opening the original .hex file in a text editor, and removing the last line, which should be `:00000001FF` (this is an EOF message). After that's been removed, copy the entire bootloader's contents and paste it at the end of the original file, and save it.
It's possible to use other bootloaders here in the same way, but __you need a bootloader__, otherwise you'll have to ISP to write new firmware to your keyboard.
It's possible to use other bootloaders here in the same way, but __you need a bootloader__, otherwise you'll have to use ISP again to write new firmware to your keyboard.
## Flashing Your Firmware