劳特巴赫 debug cable

一、arm debug调试头

1.1、硬件版本小结

arm debug头版本之间的区别：

1. V4开始支持swd
2. V5开始支持swo

1.2、实物图

3、拆机图

V2:

This one consists of a 24C02 serial flash and a ALVC164245 level translating tri-state buffer.

V3:

This one looks like the current debug adapter cables, except with a 20pin IDC socket rather than pigtail. even though it is for an older core design than the LA-7742.

Inside it appears more complicated, and seems be the same 24C02 serial flash, but instead has MAX4615/6 analog switches, DS90C032 quad differential receivers, and some PACDN006 ESD diode packs.

ref：

https://repo.lauterbach.com/pdfnew/app_arm_target_interface.pdf

https://www2.lauterbach.com/pdf/c166_app_ocds.pdf

https://repo.lauterbach.com/differences_between_standard_and_automotive_debug_cables.pdf

https://www2.lauterbach.com/pdf/app_arm_jtag.pdf

https://rsaxvc.net/blog/2024/2/27/Lauterbach_Teardowns.html