main.cpp

00001 /********************************************
00002 Send File to Sharp PC-1403(H)
00003 ==========================================
00004 
00005 Author: Fabio Fumi
00006 Date:   04.03.2022
00007 
00008 This software comes with the GNU public licence (GPL).
00009 
00010 It is an adaptation to the Mbed OS of the 
00011 img2wav from the "Pocket Tools" suite
00012 https://www.peil-partner.de/ifhe.de/sharp/
00013 *********************************************/
00014 #include "mbed.h" 
00015 #include "send_pc1403.h"
00016 //#ifdef FILE_BUF_SIZE
00017 //volatile char debugOut[1024];
00018 //#endif
00019 RawSerial   pc(USBTX,USBRX); // better than Serial, when using interrupts
00020 DigitalOut  my_led(LED1);
00021 DigitalIn   my_button(USER_BUTTON);
00022 InterruptIn btn(USER_BUTTON);
00023 Timer       total_time;
00024 Ticker      blink;
00025 
00026  // bin-to-wav conversion information (from Pocket Tools code)
00027 int       send_err;
00028 
00029 void ledBlink () {
00030     my_led = !my_led;
00031 }
00032 
00033 #ifdef FILE_BUF_SIZE 
00034 void printInfo() 
00035 {
00036     int i ;
00037     // printout info
00038     pc.printf("totBytesReceived %d\n\r", totBytesReceived);
00039     pc.printf("fileBufReceivePtr %d\n\r", fileBufReceivePtr);
00040     for ( i=0; i<10; i++ ) 
00041         pc.printf("0x%.2X ", fileOverSerialBuffer[i] );
00042     pc.printf("...\n\r");
00043     pc.printf("fileBufSendPtr %d\n\r", fileBufSendPtr);
00044     //pc.printf("<%s>\n\r", debugOut);
00045     pc.printf("fileReceiveComplete %d\n\r", fileReceiveComplete);
00046     pc.printf("fileError %d\n\r", fileError);
00047     pc.printf("fileInfo.total %d\n\r", fileInfo.total);
00048     pc.printf("time (ms): %d [send_err %d]\n\r", total_time.read_us()/1000, send_err);
00049     
00050 }
00051 
00052 // invoked at each character received over serial
00053 void serial_rx() {
00054     
00055     // getting data from serial
00056     if ( totBytesReceived == 0 ) {
00057         timeout.start(); // new file: enable a watchdog
00058         timeout.reset();
00059         blink.attach( &ledBlink, 0.05 ); // fast blink: receiving
00060     }
00061     // push character on the circular buffer
00062     filePushData ( pc.getc() );
00063     totBytesReceived++;
00064     timeout.reset();
00065 
00066 }
00067 #endif
00068 
00069  
00070 int main()
00071 {
00072     
00073     my_led = 0;
00074     pc.baud(600); // file-over-serial can't go faster (sending to Sharp is about 500baud)
00075     fflush(stdout);
00076 #ifdef FILE_BUF_SIZE 
00077     btn.rise(&printInfo);
00078     pc.attach(&serial_rx, Serial::RxIrq);
00079     fileReceiveInit( );
00080 #endif
00081     // main loop
00082     while(true) {
00083         
00084         blink.attach( &ledBlink, 1.0 ); // slow blink - waiting for file
00085         
00086 #ifdef FILE_BUF_SIZE 
00087         // File-over-serial
00088         // serial interrupt - pushing to buffer
00089         // main thread - pulling from buffer
00090         fileInfo.debug = 0x1000; // disable verbose printf while using serial
00091         fileReceiveInit( ); 
00092         // wait for data available, before starting to send  
00093         while ( !totBytesReceived  ) 
00094             wait (.1);
00095 #else
00096         // hardcoded BIN file
00097         pc.printf("Push user button to start sending \n\r"); 
00098         // wait for button pressed, only for the hardcoded BIN file
00099         while ( my_button == 1 )
00100             wait ( .1 );
00101 #endif
00102         
00103         // start sending new file to Sharp
00104         fileInfo.ident = IDENT_NEW_BAS;
00105         fileInfo.debug = 0x0040; // 0x0000 disable printf; 0x0040 DEBUG
00106         bitHandlerInit(); // new bit stream being sent
00107         total_time.reset();
00108         total_time.start();
00109         send_err = FileSend ( ) ;  // removed for debug !
00110         bitHandlerStop(); // stop bit consumer, after last bit
00111         while( bitHandlerRunning() )  // time for bit handler to complete
00112             wait (.1); 
00113         total_time.stop();
00114 #ifdef FILE_BUF_SIZE 
00115         printInfo() ;
00116 #endif
00117         pc.printf("DONE - time (ms): %d [send_err %d]\n\r", total_time.read_us()/1000, send_err);
00118 
00119         // doing nothing...
00120         wait(.1);       
00121                
00122     }
00123 }