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Merge pull request #650 from paulfertser/ts100-swd-over-usb

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New TS100 v2.51A version allows SWD over USB pins
This commit is contained in:
Ben V. Brown
2020-06-13 23:10:59 +10:00
committed by GitHub
parent aa4485d1d9 d2b05570fc
commit 051417d515
1 changed files with 5 additions and 2 deletions
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upgrading.md
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@@ -20,8 +20,11 @@ Officially the bootloader on the iron only works under Windows. However, users h
For the more adventurous out there, you can also load this firmware onto the device using an SWD programmer.
On the bottom of the MCU riser PCB, there are 4 pads for programming.
On the bottom of the MCU riser PCB, there are 4 pads for programming. On v2.51A PCB revision `USB_D+` is shorted to `SWDIO` and `USB_D-` is shorted to `SWCLK` so debugging works without disassembly (attach while staying in the bootloader). Installing [dapboot from eDesignOSS](https://github.com/eDesignOSS/dapboot) (`make TARGET=TS100 -C src`) is recommended as it allows reliable flashing of binary files with [dfu-util](http://dfu-util.sourceforge.net/).
There is a complete device flash backup included in this repository. (Note this includes the bootloader, so will need an SWD programmer to load onto the unit).
For the TS80 the SWD pins are used for the QC negotiation, so you can actually connect to the SWD power via the USB connector.
@@ -66,4 +69,4 @@ This will **NOT** show up as a USB storage drive, but instead show up using a st
To change to dapboot based alternative bootloader, you need to flash the hex file from [here](https://github.com/eDesignOSS/ts100-bl-flasher/releases).
`ts100-stockbl.hex` will reflash the stock bootloader, `ts100-dapboot.hex` will flash the new dapboot based usb bootloader.
Note that this is only reccomended for users who know what they doing. If you dont not understand how this works; please dont flash this.
Note that this is only reccomended for users who know what they doing. If you dont not understand how this works; please dont flash this.