int stlink2_swim_read_range(programmer_t *pgm, stm8_device_t *device, unsigned char *buffer, unsigned int start, unsigned int length) { stlink2_init_session(pgm); int i; for(i = 0; i < length; i += STLK_READ_BUFFER_SIZE) { // Determining current block start & size (relative to 0x8000) int block_start = start + i; int block_size = length - i; if(block_size > STLK_READ_BUFFER_SIZE) { block_size = STLK_READ_BUFFER_SIZE; } // Sending USB packet stlink2_cmd(pgm, 0xf40b, 6, HI(block_size), LO(block_size), 0x00, 0x00, HI(block_start), LO(block_start)); TRY(128, (stlink2_get_status(pgm) & 0xffff) == 0); // Seems like we've got some bytes from stlink, downloading them stlink2_cmd(pgm, 0xf40c, 0); msg_recv(pgm, &(buffer[i]), block_size); } return(length); }
int stlink2_swim_write_range(programmer_t *pgm, stm8_device_t *device, unsigned char *buffer, unsigned int start, unsigned int length, const memtype_t memtype) { stlink2_init_session(pgm); stlink2_write_byte(pgm, 0x00, device->regs.CLK_CKDIVR); if(memtype == FLASH || memtype == EEPROM || memtype == OPT) { stlink2_write_and_read_byte(pgm, 0x00, device->regs.FLASH_IAPSR); } if(memtype == FLASH) { stlink2_write_byte(pgm, 0x56, device->regs.FLASH_PUKR); stlink2_write_byte(pgm, 0xae, device->regs.FLASH_PUKR); } if(memtype == EEPROM || memtype == OPT) { stlink2_write_byte(pgm, 0xae, device->regs.FLASH_DUKR); stlink2_write_byte(pgm, 0x56, device->regs.FLASH_DUKR); } if(memtype == FLASH || memtype == EEPROM || memtype == OPT) { stlink2_write_and_read_byte(pgm, 0x56, device->regs.FLASH_IAPSR); // mov 0x56, FLASH_IAPSR } int i; int BLOCK_SIZE = device->flash_block_size; for(i = 0; i < length; i+=BLOCK_SIZE) { if(memtype == FLASH || memtype == EEPROM || memtype == OPT) { // stlink2_write_word(pgm, 0x01fe, device->regs.FLASH_CR2); // mov 0x01fe, FLASH_CR2 stlink2_write_byte(pgm, 0x01, device->regs.FLASH_CR2); // mov 0x01fe, FLASH_CR2; 0x817e - enable write OPT bytes if(device->regs.FLASH_NCR2 != 0) { // Device have FLASH_NCR2 register stlink2_write_byte(pgm, 0xFE, device->regs.FLASH_NCR2); } } // The first 8 packet bytes are getting transmitted // with the same USB bulk transfer as the command itself msg_init(cmd_buf, 0xf40a); format_int(&(cmd_buf[2]), BLOCK_SIZE, 2, MP_BIG_ENDIAN); format_int(&(cmd_buf[6]), start + i, 2, MP_BIG_ENDIAN); memcpy(&(cmd_buf[8]), &(buffer[i]), 8); msg_send(pgm, cmd_buf, sizeof(cmd_buf)); // Transmitting the rest msg_send(pgm, &(buffer[i + 8]), BLOCK_SIZE - 8); // Waiting for the transfer to process TRY(128, HI(stlink2_get_status(pgm)) == BLOCK_SIZE); if(memtype == FLASH || memtype == EEPROM || memtype == OPT) { stlink2_wait_until_transfer_completes(pgm, device); } } if(memtype == FLASH || memtype == EEPROM || memtype == OPT) { stlink2_write_and_read_byte(pgm, 0x56, device->regs.FLASH_IAPSR); // mov 0x56, FLASH_IAPSR } stlink2_write_byte(pgm, 0x00, 0x7f80); stlink2_write_byte(pgm, 0xb6, 0x7f80); stlink2_finish_session(pgm); return(length); }