Al Williams / Mbed 2 deprecated HAD_SigGen

Hackaday demo: Signal generator

Dependencies:   SDFileSystem mbed

command.cpp@1:c229c3ceb909, 2015-09-15 (annotated)

Committer:
wd5gnr
Date:
Tue Sep 15 15:21:34 2015 +0000
Revision:
1:c229c3ceb909
Parent:
0:8baa10bd07de 
Making sure all changes are ready for publication.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wd5gnr 0:8baa10bd07de 1 #include "mbed.h"
wd5gnr 0:8baa10bd07de 2 #define _EXTERN_ extern
wd5gnr 0:8baa10bd07de 3 #include "main.h"
wd5gnr 0:8baa10bd07de 4 #include "command.h"
wd5gnr 0:8baa10bd07de 5 #include "sdcard.h"
wd5gnr 0:8baa10bd07de 6
wd5gnr 0:8baa10bd07de 7 #include <cctype>
wd5gnr 0:8baa10bd07de 8
wd5gnr 0:8baa10bd07de 9 // Commands (except SDCARD commands)
wd5gnr 0:8baa10bd07de 10
wd5gnr 0:8baa10bd07de 11 // Print help
wd5gnr 0:8baa10bd07de 12 void help(void)
wd5gnr 0:8baa10bd07de 13 {
wd5gnr 1:c229c3ceb909 14 pc.printf("\n\n\n\rPat Gen V1.0. Buffers size %d\r\n",BUFSIZE);
wd5gnr 0:8baa10bd07de 15 pc.printf("l=load decimal\r\nx=load hex\r\nf=load floating\r\ng=go\r\nt=timebase\r\nz=zap\r\nd=sd card dir\r\nr=sd read\r\nw=sd write\r\n");
wd5gnr 0:8baa10bd07de 16 }
wd5gnr 0:8baa10bd07de 17
wd5gnr 0:8baa10bd07de 18 // Fill memory with one or two values (helper function)
wd5gnr 0:8baa10bd07de 19 static void zapengine(unsigned int v1, unsigned int v2)
wd5gnr 0:8baa10bd07de 20 {
wd5gnr 0:8baa10bd07de 21 int i;
wd5gnr 0:8baa10bd07de 22 for (i=0; i<sizeof(buffer)/sizeof(buffer[0]); i++) {
wd5gnr 0:8baa10bd07de 23 buffer[i]=(i&1)?v1:v2;
wd5gnr 0:8baa10bd07de 24 }
wd5gnr 0:8baa10bd07de 25
wd5gnr 0:8baa10bd07de 26 }
wd5gnr 0:8baa10bd07de 27
wd5gnr 0:8baa10bd07de 28 // UI for fill memory (zap)
wd5gnr 0:8baa10bd07de 29 void zap(void)
wd5gnr 0:8baa10bd07de 30 {
wd5gnr 0:8baa10bd07de 31 unsigned int v1,v2;
wd5gnr 0:8baa10bd07de 32 pc.printf("First value (Esc to quit): ");
wd5gnr 0:8baa10bd07de 33 if (gethex(&v1)<=0) return;
wd5gnr 0:8baa10bd07de 34 pc.printf("\r\nSecond value (Enter for none): ");
wd5gnr 0:8baa10bd07de 35 v2=v1;
wd5gnr 0:8baa10bd07de 36 if (gethex(&v2)<0) return;
wd5gnr 0:8baa10bd07de 37 if (ibuf[0])
wd5gnr 0:8baa10bd07de 38 sscanf(ibuf,"%x",&v2);
wd5gnr 0:8baa10bd07de 39 zapengine(v1,v2);
wd5gnr 0:8baa10bd07de 40 pc.printf("\r\nDone");
wd5gnr 0:8baa10bd07de 41 }
wd5gnr 0:8baa10bd07de 42
wd5gnr 0:8baa10bd07de 43
wd5gnr 0:8baa10bd07de 44
wd5gnr 0:8baa10bd07de 45
wd5gnr 0:8baa10bd07de 46 // Load from PC
wd5gnr 0:8baa10bd07de 47 void load(int decflag) // -1 is float (-1,1), 0 is hex, 1 is dec
wd5gnr 0:8baa10bd07de 48 {
wd5gnr 0:8baa10bd07de 49 unsigned int i, n=0;
wd5gnr 0:8baa10bd07de 50 int rc;
wd5gnr 0:8baa10bd07de 51 float f=0.0;
wd5gnr 0:8baa10bd07de 52 pc.printf("Transfer file now (%d items Esc or ; to quit early)\r\n",sizeof(buffer)/sizeof(buffer[0]));
wd5gnr 0:8baa10bd07de 53 for (i=0; i<sizeof(buffer)/sizeof(buffer[0]); i++) {
wd5gnr 0:8baa10bd07de 54 if (decflag<0) {
wd5gnr 0:8baa10bd07de 55 rc=getfloat(&f);
wd5gnr 0:8baa10bd07de 56 if (f<-1.0f || f>1.0f) {
wd5gnr 0:8baa10bd07de 57 printf("Range error %f\r\n",f);
wd5gnr 0:8baa10bd07de 58 rc=-1;
wd5gnr 0:8baa10bd07de 59 } else
wd5gnr 0:8baa10bd07de 60 n=(unsigned int)((f+1.0f)*32767.0f+0.5f);
wd5gnr 0:8baa10bd07de 61 } else
wd5gnr 0:8baa10bd07de 62 rc=decflag?getdec(&n):gethex(&n);
wd5gnr 0:8baa10bd07de 63 if (rc<0) {
wd5gnr 0:8baa10bd07de 64 pc.printf("\r\nAborted at %d\r\n",i);
wd5gnr 0:8baa10bd07de 65 return;
wd5gnr 0:8baa10bd07de 66 } else buffer[i]=n;
wd5gnr 0:8baa10bd07de 67 }
wd5gnr 0:8baa10bd07de 68 pc.printf("\r\nDone\r\n");
wd5gnr 0:8baa10bd07de 69 }
wd5gnr 0:8baa10bd07de 70
wd5gnr 0:8baa10bd07de 71 // Set time base
wd5gnr 0:8baa10bd07de 72 void timebase()
wd5gnr 0:8baa10bd07de 73 {
wd5gnr 0:8baa10bd07de 74 float v;
wd5gnr 0:8baa10bd07de 75 pc.printf("Time/tick in uS: ");
wd5gnr 0:8baa10bd07de 76 if (getfloat(&v)>0) timebaseus=v;
wd5gnr 0:8baa10bd07de 77 }
wd5gnr 0:8baa10bd07de 78
wd5gnr 0:8baa10bd07de 79
wd5gnr 0:8baa10bd07de 80
wd5gnr 0:8baa10bd07de 81 // Command parser
wd5gnr 0:8baa10bd07de 82 void command(void)
wd5gnr 0:8baa10bd07de 83 {
wd5gnr 0:8baa10bd07de 84 char cmd=' ';
wd5gnr 0:8baa10bd07de 85 zapengine(0xaaaa,0x5555);
wd5gnr 0:8baa10bd07de 86 help();
wd5gnr 0:8baa10bd07de 87 while (1) {
wd5gnr 0:8baa10bd07de 88 pc.printf("\r\n? ");
wd5gnr 0:8baa10bd07de 89 // commands: ? = help, l=load CSV, g=go, t=set timebase
wd5gnr 0:8baa10bd07de 90 cmd=getachar();
wd5gnr 0:8baa10bd07de 91 cmd=tolower(cmd);
wd5gnr 0:8baa10bd07de 92 pc.printf("\r\n");
wd5gnr 0:8baa10bd07de 93 switch (cmd) {
wd5gnr 0:8baa10bd07de 94 case '?':
wd5gnr 0:8baa10bd07de 95 help();
wd5gnr 0:8baa10bd07de 96 break;
wd5gnr 0:8baa10bd07de 97 case 'f':
wd5gnr 0:8baa10bd07de 98 load(-1);
wd5gnr 0:8baa10bd07de 99 break;
wd5gnr 0:8baa10bd07de 100 case 'l':
wd5gnr 0:8baa10bd07de 101 load(1);
wd5gnr 0:8baa10bd07de 102 break;
wd5gnr 0:8baa10bd07de 103 case 'x':
wd5gnr 0:8baa10bd07de 104 load(0);
wd5gnr 0:8baa10bd07de 105 break;
wd5gnr 0:8baa10bd07de 106 case 'g':
wd5gnr 0:8baa10bd07de 107 break;
wd5gnr 0:8baa10bd07de 108 case 't':
wd5gnr 0:8baa10bd07de 109 timebase();
wd5gnr 0:8baa10bd07de 110 break;
wd5gnr 0:8baa10bd07de 111 case 'z':
wd5gnr 0:8baa10bd07de 112 zap();
wd5gnr 0:8baa10bd07de 113 break;
wd5gnr 0:8baa10bd07de 114 case 'd':
wd5gnr 0:8baa10bd07de 115 dir();
wd5gnr 0:8baa10bd07de 116 break;
wd5gnr 0:8baa10bd07de 117 case 'r':
wd5gnr 0:8baa10bd07de 118 sdread();
wd5gnr 0:8baa10bd07de 119 break;
wd5gnr 0:8baa10bd07de 120 case 'w':
wd5gnr 0:8baa10bd07de 121 sdwrite();
wd5gnr 0:8baa10bd07de 122 break;
wd5gnr 0:8baa10bd07de 123 case '\r':
wd5gnr 0:8baa10bd07de 124 break;
wd5gnr 0:8baa10bd07de 125 case '\n':
wd5gnr 0:8baa10bd07de 126 break;
wd5gnr 0:8baa10bd07de 127 default:
wd5gnr 0:8baa10bd07de 128 help();
wd5gnr 0:8baa10bd07de 129 }
wd5gnr 0:8baa10bd07de 130 if (cmd=='g') break; // return to caller
wd5gnr 0:8baa10bd07de 131 }
wd5gnr 0:8baa10bd07de 132 }
wd5gnr 0:8baa10bd07de 133
wd5gnr 0:8baa10bd07de 134