Python call C function with pointer parameter

昨天折腾了一下。 可以传递指针参数了。
1. 在useSwig.i 里面加上
%module useSWIG

%inline %{
extern void add(int size, int *result);
%}

%include carrays.i
%array_functions(int, intp);

2. useSWIG.c
void add(int size, int *result)
{
}

3. runme.py
import useSWIG
a = useSWIG.new_intp(100);
useSWIG.add(100,a)
for i in range(0,100):
r = useSWIG.intp_getitem(a,i);
print r
useSWIG.delete_intp(a);

这样有点麻烦，但是能实现指针的传递。暂时先这么用。

SWIG call C function

Download the Swig, check the Examples\python\simple. It makes a dll project. Something need notice.
1. VC7 tools->option->projects->VC++ Directories->Excutable files "c:\swigwin"
tools->option->projects->VC++ Directories->Include files "c:\python25\include"
tools->option->projects->VC++ Directories->Library files "c:\python25\libs"
tools->option->projects->VC++ Directories->Library files "c:\python25\lib"

2. example.i customer build step->command line
swig -python "$(InputPath)"

3. project properties C/C++->Advanced->Compile As->Compile as C++ code(/TP)

after that, write simple python file and can call windows functions.

Play for Sure 1.21 with WMP11

Yesterday we found P4S1.21 win WMP10 can pass the error point, and still on going now. We also check another Nand flash which pass the stress test long time ago, it fail with WMP11 installed. It looks it is relate with WMP version. Oh, what Microsoft doing? It already took our 3 weeks to investigate this problem!

HY27UT088G2A validation

These are working on HY27UT088G2A MTP stress test fail issue. We have tested 3 pcs Nand flash, all of them are fail on deleting 280 or 281 song file. It looks strange here. Every test will take 70 minutes, it is hard to debug the problem. I try to copy some large files into Nand flash with hidden attribute, the failure will happen within 20 minutes. However, the MTP stress test need at least 128 MB free space, I can not cut down to many space to shorten the test time.

Sdram L2 table remove

Modified MMU initialization part, remove SDRAM l2 table and remove sdram prep initial subproject. And comment Sdram initial part in firmware. The updater.sb can run in OCRAM now.

Sdram less updater

I am working on Sdramless of updater now. The .text part can be less than 100kB. However, the memory usage is much more than I think. After adjustment, the memory size is fit on OCRAM now. However, SDRAM l2 table in SDRAM which can not move to OCRAM now. I would like to take a look on MMU initliazation part first.

Vocation on Zhuhai

元旦自驾游去了珠海，我妻子，女儿，母亲，侄子，老姨。待了2天，把珠海逛了个遍，还泡了温泉。整体感觉很好。珠海气候宜人，是个休闲的好地方。