Length 3.5CM * Width 1.8CM
The measured SWD download can reach 12M
The measured JTAG can reach 15M
UART debugging use
Use J-Flash SPI to burn SPI and read 4M Flash in 6 seconds
Known bug: schematic diagram error PB8 is connected to PB9, please modify and verify by yourself
To burn the uploaded attachment, run the following commands in sequence under the command of JLINK
Exclusive JLink-V9 function addition command!
The firmware can be used by this author, I just repainted a PCB https://github.com/konosubakonoakua/Various_MCU_Debugger_DIY
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