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László Monda
2016-11-20 20:29:38 +01:00
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@@ -16,7 +16,7 @@ First up, let's take care of the physical connections:
2. Connect your [SEGGER J-Link debug probe](https://www.segger.com/jlink-debug-probes.html) to USB.
3. Connect SEGGER J-Link to one of the SWD ports of the right half of the UHK.
Next up, it's wise to explicitly erase the MCU because an application firmware might have already been uploaded via the bootloader, in which case the bootloader may treat the already existing CRC as valid, causing it not to timeout.
Next up, it's wise to erase the MCU because an application firmware might have already been uploaded via the bootloader, in which case the bootloader may treat the already existing CRC as valid, causing it not to timeout.
1. Visit the [J-Link / J-Trace Downloads](https://www.segger.com/downloads/jlink) page. In the *J-Link Software and Documentation Pack* section click on the *Click for downloads*, then download and install the package of your operating system.
2. Start up JLink.exe and type the following:
@@ -26,13 +26,13 @@ device MK22FN512xxx12
erase
```
Lastly, Use KDS to build and upload the firmware to the MCU.
Lastly, Use KDS to build and upload the bootloader firmware to the MCU.
## Uploading the application firmware via the bootloader
After the above steps, the UHK should enumerate as the bootloader over USB.
Ultimately, you will want to upload the [application firmware](https://github.com/UltimateHackingKeyboard/firmware), but in order to test the bootloader, you can use [uhk-right_binary_blink.srec](uhk-right_binary_blink.srec) which is a properly configured binary that blinks the test LED of the UHK.
Ultimately, you will want to upload the [application firmware](https://github.com/UltimateHackingKeyboard/firmware), but in order to test the bootloader, you can use [uhk-right_binary_blink.srec](uhk-right_binary_blink.srec) which is a properly configured binary that blinks the test LED of the right half of the UHK.
You can use the [blhost utility](/bin/Tools/blhost) to upload the application firmware via the bootloader. Unfortunately, the Linux version of this tool does not seem to work due to a bug. You may have to execute the following as root/administrator: