一、arm debug调试头
1.1、硬件版本小结
arm debug头版本之间的区别：
- V4开始支持swd
- V5开始支持swo（需要配合新的调试器）
SWV/SWO is supported by all newer debug
probes and newer base modules, i.e. HS Whisker on µTrace or CombiProbe, AUTO26 Debug Cable version
V2 or newer (delivered from 2021),IDC20A Debug Cable version V5 or newer (delivered from 2018) and
base modules such as PowerDebug PRO/E40/X50 or newer models.
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
