This patch is not for comming to openocd.
I just publish the patch for testing Versaloon driver, especially SWD
driver.
All code is intended to be just simple, and working(hope it's working).
APACC/DPACC for JTAG is a register.
But for SWD, it's only a bit in the request part (5.3.1 section of ADIv5
doc):
APnDP A single bit, indicating whether the Debug Port or the Access Port
Access Register is to be
accessed. This bit is 0 for an DPACC access, or 1 for a APACC access.
So the simplest way to implement AP and DP on SWD is copy the code from
adi_v5_jtag.c and
take '0' as DPACC register and '1' as APACC register. And remove the define
of such "register" is
also very simple:
1. remove scan functions
2. add adi_swd_apacc_access and adi_swd_dpacc_access
original call with APACC register, will call adi_swd_apacc_access
original call with DPACC register, will call adi_swd_dpacc_access
2010/8/10 David Brownell <[email protected]>
> One way you can tell this is very wrong is that it
> references JTAG-specific registers APACC/DPACC ...
> those concepts don't even exist with SWD.
>
>
>
--
Best Regards, SimonQian
http://www.SimonQian.com
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