update docs for isp
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@ -64,7 +64,7 @@ Once you've made your changes, you can click the Upload button (right arrow), wh
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## The .hex file
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## The .hex file
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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.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.
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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.
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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.
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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.
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@ -7,7 +7,7 @@ In rare circumstances, your keyboard/device can become unwritable, and `dfu-prog
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[ X ERROR
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[ X ERROR
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Memory write error, use debug for more info.
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Memory write error, use debug for more info.
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Currently the only way to solve this is to [reprogram the chip via ISP](https://www.reddit.com/r/olkb/comments/4rjzen/flashing_error_on_mac_os_x/d52rj8o/). This requires another device to be hooked up to a couple of exposed pins on the PCB. There is a guide on how to do this [here](https://learn.sparkfun.com/tutorials/installing-an-arduino-bootloader), and [this is where things are on the Planck PCB](http://imgur.com/lvbxbHt).
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Currently the only way to solve this is to [reprogram the chip via ISP](https://www.reddit.com/r/olkb/comments/4rjzen/flashing_error_on_mac_os_x/d52rj8o/). This requires another device to be hooked up to a couple of exposed pins on the PCB. __[We now have a guide on ISP flashing](isp_flashing_guide.md)__ and [this is where things are on the Planck PCB](http://imgur.com/lvbxbHt).
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An example command to flash the board once things are hooked up is:
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An example command to flash the board once things are hooked up is:
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