int main( int argc, const char **argv )
{
u8 minor, major;
u16 version;
int wantwrite = 0; //not writing unless specified
int wantread = 0; //not reading unless specified
int wanterase = 1; //erasing unless specified not to do so
int argind = 0;
printf("\n==========================");
printf("\n CBBL host side loader ");
printf("\n--------------------------");
printf("\nZavatta Marco, Yin Zhining");
printf("\nPolimi 2011/2012");
printf("\n==========================");
printf("\n");
/*
printf("Number of arguments argc = %d \n",argc);
printf("First argument: %s\n",argv[0]);
*/
/******************************************** Argument handling *************************************/
// Case of no arguments
if (argc==1) {
fprintf( stderr, "Use -help for details.\n\n");
exit(1);
}
// Help argument handler
if (strcmp(argv[1],"-help")==0)
{
fprintf( stderr, "Program usage:./stm32ld_cbbl {-usart,-can} {device path e.g. /dev/ttyUSB0}"
" [-write, firmware file] [-read, download file] [-noerase] {-defaultbaseaddr,(-custombaseaddr, value)}\n"
"arguments marked with {} are mandatory unless going for -help\n"
"arguments marked with [] are optional\n"
"order of the first two arguments should be respected\n"
"examples:\n"
"stm32ld_cbbl -usart /dev/ttyUSB0 -write firmwaretowrite.bin -defaultbaseaddr\n"
"stm32ld_cbbl -can /dev/pcanusb0 -custombaseaddr 0x08007000 -read readflashmemory.bin -write firmwaretowrite.bin\n"
"switches description:\n"
"-write write specified file into Flash memory from given address\n"
"-read read Flash memory into specified file from given address\n"
" neither -write nor -read jump to specified memory address and execute\n"
"-defaultbaseaddr use hard-coded base address 0x0800 6000 as the first\n"
"\tFlash address where the write/read/jump operations will begin\n"
"-custombaseaddr use the specified value as the base address\n"
"\tvalue must be in the format 0xY\n"
"-noerase do not erase the Flash memory"
"\n\n" );
exit( 1 );
}
// Communication peripheral selection
if (strcmp(argv[1],"-usart")==0) devselection = 1;
else if (strcmp(argv[1],"-can")==0) devselection = 2;
else {
fprintf( stderr, "host: cannot interpret device selection parameter\n\n" );
exit(1);
}
// FLASH base address selection
int found = 0;
while (argind<argc) {
if (strcmp(argv[argind],"-custombaseaddr")==0 || strcmp(argv[argind],"-defaultbaseaddr")==0) {
found = 1;
if (strcmp(argv[argind],"-custombaseaddr") == 0) {
custombaseaddress = strtoul( argv[argind+1], NULL, 0);
printf("host: custom base address selected: %x\n", custombaseaddress);
}
else if (strcmp(argv[argind],"-defaultbaseaddr") == 0) {
custombaseaddress = STM32_FLASH_START_ADDRESS;
printf("host: default base address selected: %x\n", custombaseaddress);
}
}
argind++;
}
if (found==0) {
fprintf( stderr, "host: cannot interpret address parameters\n\n" );
exit(1);
}
/*
if( ( errno == ERANGE && ( baud == LONG_MAX || baud == LONG_MIN ) ) || ( errno != 0 && baud == 0 ) || ( baud < 0 ) )
{
fprintf( stderr, "Invalid baud '%s'\n", argv[ 2 ] );
exit( 1 );
}
*/
// Want to write?
argind=0;
while (argind<argc) {
if (strcmp(argv[argind],"-write")==0) {
wantwrite=1;
break;
}
argind++;
}
// If yes, open firmware file to be written
if (wantwrite) {
printf("host: write selected\n");
if( ( fp = fopen(argv[argind+1], "rb" ) ) == NULL )
{
fprintf( stderr, "Unable to open ");
fprintf( stderr, argv[argind+1]);
fprintf( stderr, " file\n");
exit( 1 );
}
else
{
printf("host: firmware file %s opened successfully\n", argv[argind+1]);
fseek( fp, 0, SEEK_END );
fpsize = ftell( fp );
fseek( fp, 0, SEEK_SET );
}
}
// Want to read?
argind=0;
while (argind<argc) {
if (strcmp(argv[argind],"-read")==0) {
wantread=1;
break;
}
argind++;
}
// If yes, open destination file for data from memory
// file will be created and opened in write mode if non existing (wb option)
if (wantread) {
printf("host: read selected\n");
if( ( fflash = fopen(argv[argind+1], "wb" ) ) == NULL )
{
fprintf( stderr, "Unable to open ");
fprintf( stderr, argv[argind+1]);
fprintf( stderr, " file\n");
exit( 1 );
}
else
{
printf("host: flash memory download file %s opened successfully\n",argv[argind+1]);
fseek( fflash, 0, SEEK_END );
fflashsize = ftell( fflash );
fseek( fflash, 0, SEEK_SET );
}
}
// Want to erase?
argind=0;
while (argind<argc) {
if (strcmp(argv[argind],"-noerase")==0) {
wanterase=0;
break;
}
argind++;
}
if (wanterase)
printf("host: erase selected\n");
else printf("host: erase deactivated\n");
/******************************************** Loader workflow *************************************/
// Connect to bootloader
printf( "host: Initializing communication with the device\n");
if( stm32_init(argv[2], (u32)SER_BAUD ) != STM32_OK )
{
fprintf( stderr, "host: Unable to connect to bootloader\n\n" );
exit( 1 );
}
else printf("host: init succeded\n");
// Get version
if( stm32_get_version( &major, &minor ) != STM32_OK )
{
fprintf( stderr, "host: Unable to get bootloader version\n\n" );
exit( 1 );
}
else
{
printf( "host: Found bootloader version: %d.%d\n", major, minor );
/*
if( BL_MKVER( major, minor ) < BL_MINVERSION )
{
fprintf( stderr, "\n:Unsupported bootloader version" );
exit( 1 );
}
*/
}
// Get chip ID
if( stm32_get_chip_id( &version ) != STM32_OK )
{
fprintf( stderr, "host:Unable to get chip ID\n\n" );
exit( 1 );
}
else
{
printf( "host: Chip ID: %04X\n", version );
/*
if( version != CHIP_ID )
{
fprintf( stderr, "\nhost: Unsupported chip ID" );
exit( 1 );
}
*/
}
// Write unprotect
if (wantread || wantwrite) {
if( stm32_write_unprotect() != STM32_OK )
{
fprintf( stderr, ":host: Unable to execute write unprotect\n\n" );
exit( 1 );
}
else
printf( "host: Cleared write protection.\n\n" );
}
// Erase flash
if (wantwrite && wanterase) {
if( stm32_erase_flash() != STM32_OK )
{
fprintf( stderr, "Unable to erase chip\n\n" );
exit( 1 );
}
else
printf( "host: Erased FLASH memory.\n" );
}
// Program flash
if (wantwrite) {
setbuf( stdout, NULL );
printf( "host: Programming flash ... \n ");
if( stm32_write_flash( writeh_read_data, writeh_progress ) != STM32_OK )
{
fprintf( stderr, "Unable to program FLASH memory.\n\n" );
exit( 1 );
}
else {
printf( "host: write memory successfully completed.\n" );
fclose( fp );
}
}
// Read flash
if (wantread) {
printf( "host: Reading flash ... \n");
if( stm32_read_flash(fflash) != STM32_OK )
{
fprintf( stderr, "Unable to read FLASH memory.\n\n" );
fclose( fflash );
exit( 1 );
}
else {
fseek( fflash, 0, SEEK_END );
fflashsize = ftell( fflash );
fseek( fflash, 0, SEEK_SET );
printf( "\nhost: FLASH memory successfully read (%d bytes).\n",fflashsize);
fclose( fflash );
}
}
// Jump to app
printf( "host: Jumping to app...\n");
stm32_jump();
printf( "\nhost: Done!\n\n");
return 0;
}
int main( int argc, const char **argv )
{
u8 minor, major;
u16 version;
long baud;
// Argument validation
if( argc != 4 )
{
fprintf( stderr, "Usage: stm32ld <port> <baud> <binary image name>\n" );
exit( 1 );
}
errno = 0;
baud = strtol( argv[ 2 ], NULL, 10 );
if( ( errno == ERANGE && ( baud == LONG_MAX || baud == LONG_MIN ) ) || ( errno != 0 && baud == 0 ) || ( baud < 0 ) )
{
fprintf( stderr, "Invalid baud '%s'\n", argv[ 2 ] );
exit( 1 );
}
if( ( fp = fopen( argv[ 3 ], "rb" ) ) == NULL )
{
fprintf( stderr, "Unable to open %s\n", argv[ 3 ] );
exit( 1 );
}
else
{
fseek( fp, 0, SEEK_END );
fpsize = ftell( fp );
fseek( fp, 0, SEEK_SET );
}
// Connect to bootloader
if( stm32_init( argv[ 1 ], baud ) != STM32_OK )
{
fprintf( stderr, "Unable to connect to bootloader\n" );
exit( 1 );
}
// Get version
if( stm32_get_version( &major, &minor ) != STM32_OK )
{
fprintf( stderr, "Unable to get bootloader version\n" );
exit( 1 );
}
else
{
printf( "Found bootloader version: %d.%d\n", major, minor );
if( BL_MKVER( major, minor ) < BL_MINVERSION )
{
fprintf( stderr, "Unsupported bootloader version" );
exit( 1 );
}
}
// Get chip ID
if( stm32_get_chip_id( &version ) != STM32_OK )
{
fprintf( stderr, "Unable to get chip ID\n" );
exit( 1 );
}
else
{
printf( "Chip ID: %04X\n", version );
if( version != CHIP_ID )
{
fprintf( stderr, "Unsupported chip ID" );
exit( 1 );
}
}
// Write unprotect
if( stm32_write_unprotect() != STM32_OK )
{
fprintf( stderr, "Unable to execute write unprotect\n" );
exit( 1 );
}
else
printf( "Cleared write protection.\n" );
// Erase flash
if( stm32_erase_flash() != STM32_OK )
{
fprintf( stderr, "Unable to erase chip\n" );
exit( 1 );
}
else
printf( "Erased FLASH memory.\n" );
// Program flash
setbuf( stdout, NULL );
printf( "Programming flash ... ");
if( stm32_write_flash( writeh_read_data, writeh_progress ) != STM32_OK )
{
fprintf( stderr, "Uanble to program FLASH memory.\n" );
exit( 1 );
}
else
printf( "\nDone.\n" );
fclose( fp );
return 0;
}