BaseLpcIsp.h

00001 #pragma once
00002 
00003 #include "mbed.h"
00004 #include <stdarg.h>
00005 #include "mystring.h"
00006 
00007 #define LF '\n'
00008 #define CRLF "\r\n"
00009 
00010 #define LED_TX 0
00011 
00012 class BaseLpcIsp {
00013 public:
00014     BaseLpcIsp(PinName txd, PinName rxd, PinName reset, PinName isp):
00015          _target(txd, rxd),_nreset(reset),_nisp(isp) {
00016         _wpos = _rpos = 0;
00017         _target.attach<BaseLpcIsp>(this, &BaseLpcIsp::callback);
00018     };
00019     void Reset(bool isp);
00020     bool Sync();
00021     bool FlashWrite(const char* filename);
00022 
00023     void baud(int baudrate) { _target.baud(baudrate); }
00024     int putc(int c) { return _target.putc(c); }
00025     int readable() { return (_wpos != _rpos) ? 1 : 0; }
00026     int getc() {
00027         if (readable()) {
00028             int c = _buf[_rpos++];
00029             if (_rpos >= sizeof(_buf)) {
00030                 _rpos = 0;
00031             }
00032             return c;
00033         }
00034         return -1;
00035     }
00036     int puts(const char *str) {
00037         while(*str) {
00038             putc(*str++);
00039         }
00040         return 0;
00041     }
00042     
00043 protected:
00044     uint32_t part_code;
00045     int chunk_size;
00046     int sector_size;
00047     bool plan_binary;
00048     virtual void infoLED(int select, int value) {}
00049     virtual void infoSLCD(const char* s) {}
00050 
00051 private:
00052     void isp_error(int line) {
00053         char buf[5];
00054         snprintf(buf, sizeof(buf), "E%3d", line);
00055         infoSLCD(buf);
00056     }
00057     bool _cmd(const char* format, ...);
00058     void sendln(const char* s);
00059     bool waitln(const char* s);
00060     bool recvln(char* buf, int size);
00061     bool recvln(mystring& s);
00062     bool _write_to_ram(int addr, uint8_t* buf, int size);
00063     bool _patch(int addr, uint8_t* buf, int size);
00064     RawSerial _target;
00065     char _buf[64];
00066     __IO int _wpos;
00067     int _rpos;
00068     void callback() {
00069         int c = _target.getc();
00070         _buf[_wpos++] = c;
00071         if (_wpos >= sizeof(_buf)) {
00072             _wpos = 0;
00073         }
00074     }
00075     uint8_t tx_sw;
00076     DigitalOut _nreset;
00077     DigitalOut _nisp;
00078 };