基于 MiniLA 的移植与实现 (3)

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