main.cpp

00001 /**
00002  * Program an AVR with an mbed.
00003  */
00004 
00005 #include "AVR910.h"
00006 
00007 LocalFileSystem local("local");
00008 Serial pc(USBTX, USBRX);
00009 AVR910 mAVRISP(p5, p6, p7, p8); //mosi, miso, sclk, nreset.
00010 
00011 int main() {
00012 
00013     int success  = -1;
00014     int response =  0;
00015 
00016     //Read the vendor code [0x1E == Atmel].
00017     response = mAVRISP.readVendorCode();
00018 
00019     if (response == ATMEL_VENDOR_CODE) {
00020         pc.printf("Microcontroller is an Atmel [0x%02x]\n", response);
00021     } else if (response == DEVICE_LOCKED) {
00022         pc.printf("Device is locked\n");
00023         return -1;
00024     } else {
00025         pc.printf("Microcontroller is not an Atmel\n");
00026         return -1;
00027     }
00028 
00029     //Read part family and flash size - see datasheet for code meaning.
00030     response = mAVRISP.readPartFamilyAndFlashSize();
00031 
00032     if (response == 0xFF) {
00033         pc.printf("Device code erased or target missing\n");
00034     } else if (response == 0x01) {
00035         pc.printf("Device locked\n");
00036         return -1;
00037     } else {
00038         pc.printf("Part family and flash size code is: 0x%02x\n", response);
00039     }
00040 
00041     //Read part number.
00042     response = mAVRISP.readPartNumber();
00043 
00044     if (response == 0xFF) {
00045         pc.printf("Device code erased or target missing\n");
00046     } else if (response == 0x02) {
00047         pc.printf("Device locked\n");
00048         return -1;
00049     } else {
00050         pc.printf("Part number code is: 0x%02x\n", response);
00051     }
00052 
00053     //Open binary file to write to AVR.
00054     FILE *fp = fopen(PATH_TO_BINARY, "rb");
00055 
00056     if (fp == NULL) {
00057         pc.printf("Failed to open binary. Please check the file path\n");
00058         return -1;
00059     } else {
00060         //Program it!
00061         pc.printf("Binary file opened successfully\n");
00062         success = mAVRISP.program(fp,
00063                                   ATMEGA328P_PAGESIZE,
00064                                   ATMEGA328P_NUM_PAGES);
00065         fclose(fp);
00066     }
00067 
00068     if (success < 0) {
00069         printf("Programming failed.\n");
00070     } else {
00071         printf("Programming was successful!\n");
00072     }
00073 
00074 }