SD->JTAG adapter for F3?

Banana PI RISC-V Design BPI-F3/BPI-CM6(SpacemiT K1)
1

I can see some old posts about getting JTAG working on the F3 board, but … is there an off-the-shelf adapter for the SD/MMC card to a JTAG format? One that can be bought.

But it LOOKS like the pinout is a bit different from the few adapters (e.g. ESP32) that are out there.

If there’s already sch/brd/gerbers that I can just get made, that would also be a great solution.

2

Some chips from Allwinner and other manufacturers share the JTAG debug port with the SD card. If you need to perform JTAG debugging, you can use something like this: 平头哥CKLink Lite至全志TF卡调试转接方案 - 立创开源硬件平台