Code to load a LPC1114 over tx/rx. I have only tested with a 1114 chip but it should work with other LPC uControllers
Dependencies: DirectoryList MODSERIAL mbed
Fork of ika_shouyu_poppoyaki by
main.cpp
- Committer:
- okano
- Date:
- 2013-09-20
- Revision:
- 29:96e28bc1bd99
- Parent:
- 28:689c3880e0e4
- Child:
- 30:e0d7524661ca
File content as of revision 29:96e28bc1bd99:
/** * Sample of ISP operation for NXP MCUs * * @author Tedd OKANO * @version 0.9 * @date Sep-2013 * * This program programs MCU flash memory through UART. It uses * "In-System Programming (ISP)" interface in target MCU (NXP LPC micro- * controllers). * * The ISP is done by PC and serial cable normally. The ISP protocol is * executed software on a PC. The software reads a data file and transfers * the data with the ISP protocol. * This program does same process of that. The mbed perform the function like * "FlashMagic" and "lpc21isp". * (This program not just copies the binary but also insert 4 byte checksum at * address 0x1C.) * * This program currently supports LPC1114(LPC1114FN28/102 - DIP28-ARM) and * LPC810(LPC810M021FN8 - DIP8-ARM). */ #include "mbed.h" #include "target_table.h" #include "serial_utilities.h" #include "command_interface.h" #include "writing.h" #include "uu_coding.h" #include "target_handling.h" #include "verification.h" #include "_user_settings.h" #include "ika.h" #include "error_code.h" BusOut leds( LED4, LED3, LED2, LED1 ); LocalFileSystem local( "local" ); Ticker success; int error_state = 0; int isp_flash_write( char *file_name ); int file_size( FILE *fp ); char read_byte( void ); void success_indicator(); int main() { int err; err = isp_flash_write( SOURCE_FILE ); printf( "\r\n %s\r\n\r\n", err ? "** The data could not be written :(" : "** The data has been written successflly :)" ); if ( err ) error( " ** ISP failed\r\n" ); #ifdef AUTO_PROGRAM_START set_target_baud_rate( TARGET_OPERATION_BAUD_RATE ); reset_target( NO_ISP_MODE ); printf( " ** The program in flash has been started!!\r\n" ); #endif printf( " (now the mbed is working in \"serial through mode\")\r\n\r\n" ); success.attach( &success_indicator, 0.1 ); usb_serial_bridge_operation(); // doesn't return. infinite loop in this function } int isp_flash_write( char *file_name ) { FILE *fp; target_param *tpp; int data_size; int last_sector; int transferred_size; int err; if ( NULL == (tpp = open_target( ISP_BAUD_RATE )) ) { return ( ERROR_AT_TARGET_OPEN ); } printf( " target device found : type = \"%s\"\r\n", tpp->type_name ); printf( " ID = 0x%08X\r\n", tpp->id ); printf( " RAM size = %10d bytes\r\n", tpp->ram_size ); printf( " flash size = %10d bytes\r\n", tpp->flash_size ); printf( " opening file: \"%s\"\r\n", file_name ); if ( NULL == (fp = fopen( file_name, "rb" )) ) { return ( ERROR_AT_FILE_OPEN ); } data_size = file_size( fp ); last_sector = data_size / tpp->sector_size; printf( " data size = %d bytes, it takes %d secotrs in flash area\r\n", data_size, last_sector + 1 ); printf( " resetting target\r\n" ); if ( erase_sectors( last_sector ) ) return ( ERROR_AT_SECTOR_ERASE ); printf( "\r\n ==== flash writing ====\r\n" ); if ( err = write_flash( fp, tpp, &transferred_size ) ) return ( err ); printf( " -- %d bytes data are written\r\n", transferred_size ); printf( "\r\n ==== flash reading and verifying ====\r\n" ); if ( err = verify_flash( fp, tpp, &transferred_size ) ) return ( err ); printf( " -- %d bytes data are read and verified\r\n", transferred_size ); fclose( fp ); post_writing_process( tpp ); return ( 0 ); } int file_size( FILE *fp ) { int size; fseek( fp, 0, SEEK_END ); // seek to end of file size = ftell( fp ); // get current file pointer fseek( fp, 0, SEEK_SET ); // seek back to beginning of file return size; } void success_indicator() { static int i = 0; leds = 0x1 << (i++ & 0x3); } void toggle_led( char v ) { leds = leds ^ (0x1 << v); }