基于 MiniLA 的移植与实现 (3)

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为了方便测试，我将PowerPC上的信号SMC1_TXD在经过RS232电平转换器件之前接到了FPGA的IO上，下面是具体的测试过程：

1. 通过Telnet链接到板卡上

2.下载FPGA配置文件

tinysh$ fpga download la_top.bin

File check passed

[==================================================>] 100 %

tot_len = 336680

3.开始捕获数据

tinysh$ miniLA

tinysh$ miniLA > start

4.这个时候我们在串口上进行一些操作。

# cat /proc/cpuinfo

processor : 0

cpu : 8280

core clock : 332 MHz

CPM clock : 249 MHz

bus clock : 83 MHz

revision : 32.19 (pvr 8082 2013)

bogomips : 221.18

5. 停止数据捕获

tinysh$ miniLA > stop

Spend time :[4209]ms Rate:[2]kB/S

tinysh$ miniLA > /q

tinysh$

Bye

6. 这个时候我们就得到了捕获的数据

# ls /mnt/rd/ -l

-rwxr-xr-x 1 0 0 11264 Jan 1 02:39 minila.bin

该数据是一个原始的采样值，为了能在minila_win_0.6.3_src软件上显示，还需要给该文件加个文件头。

用VC做个小程序，代码如下：

#include "stdafx.h"

char FileSig2[] = "MINILA0/0";

FILE * gInpfile = NULL;

FILE * gOutpfile = NULL;

#pragma pack(1)

typedef struct {

unsigned int dataLen;

unsigned char stateAnalysis;

double timeBase;

unsigned int cursorsPositionL;

unsigned int cursorsPositionH;

unsigned char trigSize;

unsigned char trigDelay;

unsigned char trigLen;

unsigned int trigMask;

unsigned int trigValue;

unsigned int trigEdge;

unsigned char extTrig_en;

unsigned int extTrig_val;

unsigned char invIntTrig;

} algFileHeader_t;

#pragma pack(push)

int genFileHeader(FILE* in, FILE* out)

{

int dataLen = 0;

unsigned int sample_temp = 0;

algFileHeader_t header;

fseek(in, 0, SEEK_END);

dataLen = ftell(in);

fseek(in, 0, SEEK_SET);

header.dataLen = dataLen / 4;

header.stateAnalysis = 1;

// header.timeBase = 100000000;

// header.timeBase = 83333333;

header.timeBase = 41666667;

header.cursorsPositionL = 0;

header.cursorsPositionH = 0;

header.trigSize = 0;

header.trigDelay = 1;

header.trigLen = 1;

header.trigMask = 0;

header.trigValue = 0;

header.trigEdge = 0;

header.extTrig_en = 0;

header.extTrig_val = 0;

header.invIntTrig = 0;

fwrite(FileSig2, 8, 1, out);

fwrite((void *)&header, 1, sizeof(algFileHeader_t), out);

for(unsigned int i=0; i<header.dataLen; i++)

{

fread(&sample_temp, 1, 4, in);

fwrite(&sample_temp, 1, 4, out);

}

return 0;

}

int main(int argc, char* argv[])

{

gInpfile = fopen("minila.bin", "rb");

gOutpfile = fopen("data.alg", "wb");

genFileHeader(gInpfile, gOutpfile);

fclose(gInpfile);

fclose(gOutpfile);

return 0;

}

这时将输出的data.alg文件用minila_win_0.6.3_src打开就可以看到下面的波形。明显看到波形分为两段，前面的是我通过PC向板卡发送命令（信号SMC1_RXD），板卡回显过来的数据（信号SMC1_TXD）。通过RS232-Decoder可以识别出这段信号的含义。

下面为完整的Decoder结果，和我们在串口软件上看到的内容一致。

122301442 (2.94s) start of decoding

127810737 (3.07s) 0x63 c

127814363 (3.07s) 0x61 a

127817990 (3.07s) 0x74 t

127821617 (3.07s) 0x20

127825243 (3.07s) 0x2F /

127828870 (3.07s) 0x70 p

127832497 (3.07s) 0x72 r

127836123 (3.07s) 0x6F o

127839750 (3.07s) 0x63 c

127843377 (3.07s) 0x2F /

127847003 (3.07s) 0x63 c

127850630 (3.07s) 0x70 p

127854257 (3.07s) 0x75 u

127857883 (3.07s) 0x69 i

127861510 (3.07s) 0x6E n

127865137 (3.07s) 0x66 f

127868763 (3.07s) 0x6F o

127872390 (3.07s) 0x0D

127876017 (3.07s) 0x0A

128144390 (3.08s) 0x70 p

128148017 (3.08s) 0x72 r

128151643 (3.08s) 0x6F o

128155270 (3.08s) 0x63 c

128158897 (3.08s) 0x65 e

128162523 (3.08s) 0x73 s

128166150 (3.08s) 0x73 s

128169777 (3.08s) 0x6F o

128173403 (3.08s) 0x72 r

128177030 (3.08s) 0x09

128180657 (3.08s) 0x3A :

128184283 (3.08s) 0x20

128187910 (3.08s) 0x30 0

128191537 (3.08s) 0x0D

128195163 (3.08s) 0x0A

128198790 (3.08s) 0x63 c

128202417 (3.08s) 0x70 p

128206043 (3.08s) 0x75 u

128209670 (3.08s) 0x09

128213297 (3.08s) 0x09

128216923 (3.08s) 0x3A :

128220550 (3.08s) 0x20

128224177 (3.08s) 0x38 8

128227803 (3.08s) 0x32 2

128231430 (3.08s) 0x38 8

128235057 (3.08s) 0x30 0

128238683 (3.08s) 0x0D

128242310 (3.08s) 0x0A

128245937 (3.08s) 0x63 c

128249563 (3.08s) 0x6F o

128253190 (3.08s) 0x72 r

128256817 (3.08s) 0x65 e

128260443 (3.08s) 0x20

128264070 (3.08s) 0x63 c

128267697 (3.08s) 0x6C l

128271323 (3.08s) 0x6F o

128274950 (3.08s) 0x63 c

128278577 (3.08s) 0x6B k

128282203 (3.08s) 0x09

128285830 (3.08s) 0x3A :

128289457 (3.08s) 0x20

128293083 (3.08s) 0x33 3

128296710 (3.08s) 0x33 3

128300337 (3.08s) 0x32 2

128303963 (3.08s) 0x20

128307590 (3.08s) 0x4D M

128311217 (3.08s) 0x48 H

128314843 (3.08s) 0x7A z

128318470 (3.08s) 0x0D

128322097 (3.08s) 0x0A

128325723 (3.08s) 0x43 C

128329350 (3.08s) 0x50 P

128332977 (3.08s) 0x4D M

128336603 (3.08s) 0x20

128340230 (3.08s) 0x20

128343857 (3.08s) 0x63 c

128347483 (3.08s) 0x6C l

128351110 (3.08s) 0x6F o

128354737 (3.08s) 0x63 c

128358363 (3.08s) 0x6B k

128361990 (3.08s) 0x09

128365617 (3.08s) 0x3A :

128369243 (3.08s) 0x20

128372870 (3.08s) 0x32 2

128376497 (3.08s) 0x34 4

128380123 (3.08s) 0x39 9

128383750 (3.08s) 0x20

128387377 (3.08s) 0x4D M

128391003 (3.08s) 0x48 H

128394630 (3.08s) 0x7A z

128398257 (3.08s) 0x0D

128401883 (3.08s) 0x0A

128405510 (3.08s) 0x62 b

128409137 (3.08s) 0x75 u

128412763 (3.08s) 0x73 s

128416390 (3.08s) 0x20

128420017 (3.08s) 0x20

128423643 (3.08s) 0x63 c

128427270 (3.08s) 0x6C l

128430897 (3.08s) 0x6F o

128434523 (3.08s) 0x63 c

128438150 (3.08s) 0x6B k

128441777 (3.08s) 0x09

128445403 (3.08s) 0x3A :

128449030 (3.08s) 0x20

128452657 (3.08s) 0x38 8

128456283 (3.08s) 0x33 3

128459910 (3.08s) 0x20

128463537 (3.08s) 0x4D M

128467163 (3.08s) 0x48 H

128470790 (3.08s) 0x7A z

128474417 (3.08s) 0x0D

128478043 (3.08s) 0x0A

128481670 (3.08s) 0x72 r

128485297 (3.08s) 0x65 e

128488923 (3.08s) 0x76 v

128492550 (3.08s) 0x69 i

128496177 (3.08s) 0x73 s

128499803 (3.08s) 0x69 i

128503430 (3.08s) 0x6F o

128507057 (3.08s) 0x6E n

128510683 (3.08s) 0x09

128514310 (3.08s) 0x3A :

128517937 (3.08s) 0x20

128521563 (3.08s) 0x33 3

128525190 (3.08s) 0x32 2

128528817 (3.08s) 0x2E .

128532443 (3.08s) 0x31 1

128536070 (3.08s) 0x39 9

128539697 (3.08s) 0x20

128543323 (3.09s) 0x28 (

128546950 (3.09s) 0x70 p

128550577 (3.09s) 0x76 v

128554203 (3.09s) 0x72 r

128557830 (3.09s) 0x20

128561457 (3.09s) 0x38 8

128565083 (3.09s) 0x30 0

128568710 (3.09s) 0x38 8

128572337 (3.09s) 0x32 2

128575963 (3.09s) 0x20

128579590 (3.09s) 0x32 2

128583217 (3.09s) 0x30 0

128586843 (3.09s) 0x31 1

128590470 (3.09s) 0x33 3

128594097 (3.09s) 0x29 )

128597723 (3.09s) 0x0D

128601350 (3.09s) 0x0A

128604977 (3.09s) 0x62 b

128608603 (3.09s) 0x6F o

128612230 (3.09s) 0x67 g

128615857 (3.09s) 0x6F o

128619483 (3.09s) 0x6D m

128623110 (3.09s) 0x69 i

128626737 (3.09s) 0x70 p

128630363 (3.09s) 0x73 s

128633990 (3.09s) 0x09

128637617 (3.09s) 0x3A :

128641243 (3.09s) 0x20

128644870 (3.09s) 0x32 2

128648497 (3.09s) 0x32 2

128652123 (3.09s) 0x31 1

128655750 (3.09s) 0x2E .

128659377 (3.09s) 0x31 1

128663003 (3.09s) 0x38 8

128666630 (3.09s) 0x0D

128670257 (3.09s) 0x0A

128673883 (3.09s) 0x23 #

128677510 (3.09s) 0x20

131924144 (3.17s) end of decoding