FreeCalypso > hg > freecalypso-sw
view rvinterf/libg23/README @ 923:10b4bed10192
gsm-fw/L1: fix for the DSP patch corruption bug
The L1 code we got from the LoCosto fw contains a feature for DSP CPU load
measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier
DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the
code dealing with that feature is conditionalized as #if (DSP >= 38),
but one spot was missed, and the MCU code was writing into an API word
dealing with this feature. In TCS211 this DSP API word happens to be
used by the DSP code patch, hence that write was corrupting the patched
DSP code.
| author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
|---|---|
| date | Mon, 19 Oct 2015 17:13:56 +0000 |
| parents | 42c91c51ca7f |
| children |
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The library built in this directory is a host side library, not for the target. This library implements some functions for handling packet exchanges with GPF, and it will be linked by some of the programs in the rvinterf suite. It needs to be noted that the RVTMUX channel belonging to GPF was named RVT_L23_HEADER by TI, and as a result, I thought that these packets related specifically to the higher layers of the protocol stack. But now we know that hierarchically speaking, GPF sits *below* L1, not above, and GPF packets should not be automatically associated with G23. This realization was made fairly late, thus "g23" appears in a bunch of function names, and in the name of this library.