Subversion Repositories neo430

// #################################################################################################

// #  < NEO430 Boot image generator >                                                              #

// # ********************************************************************************************* #

// # BSD 3-Clause License                                                                          #

// #                                                                                               #

// # Copyright (c) 2020, Stephan Nolting. All rights reserved.                                     #

// #                                                                                               #

// # Redistribution and use in source and binary forms, with or without modification, are          #

// # permitted provided that the following conditions are met:                                     #

// #                                                                                               #

// # 1. Redistributions of source code must retain the above copyright notice, this list of        #

// #    conditions and the following disclaimer.                                                   #

// #                                                                                               #

// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of     #

// #    conditions and the following disclaimer in the documentation and/or other materials        #

// #    provided with the distribution.                                                            #

// #                                                                                               #

// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to  #

// #    endorse or promote products derived from this software without specific prior written      #

// #    permission.                                                                                #

// #                                                                                               #

// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS   #

// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF               #

// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE    #

// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,     #

// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #

// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED    #

// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING     #

// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED  #

// # OF THE POSSIBILITY OF SUCH DAMAGE.                                                            #

// # ********************************************************************************************* #

// # The NEO430 Processor - https://github.com/stnolting/neo430                                    #

// #################################################################################################

#include <stdint.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main(int argc, char *argv[]) {

  if (argc != 4) {

        printf("<<< NEO430 executable image generator >>>\n"

               "Three arguments are required.\n"

               "1st: Option\n"

               " -app_bin : Generate application executable binary (with header!) \n"

               " -app_img : Generate application raw executable memory image (text file, no header!)\n"

               " -bld_img : Generate bootloader raw executable memory image (text file, no header!)\n"

                     "2nd: Input file (raw binary image)\n"

                     "3rd: Output file\n");

        return 0;

  }

  FILE *input, *output;

  unsigned char buffer[2];

  char tmp_string[512];

  uint16_t tmp = 0, size = 0, checksum = 0;

  int i = 0;

  int option = 0;

  if (strcmp(argv[1], "-app_bin") == 0)

    option = 1;

  else if (strcmp(argv[1], "-app_img") == 0)

    option = 2;

  else if (strcmp(argv[1], "-bld_img") == 0)

    option = 3;

  else {

        printf("Invalid option!");

        return 2;

  }

  // open input file

  input = fopen(argv[2], "rb");

  if(input == NULL){

    printf("Input file error!");

    return 3;

  }

  // open output file

  output = fopen(argv[3], "wb");

  if(output == NULL){

    printf("Output file error!");

    return 4;

  }

// ------------------------------------------------------------

// Generate BINARY executable (with header!!!) for bootloader upload

// ------------------------------------------------------------

  if (option == 1) {

    // reserve space for header

    fputc(char(0), output);

    fputc(char(0), output);

    fputc(char(0), output);

    fputc(char(0), output);

    fputc(char(0), output);

    fputc(char(0), output);

    buffer[0] = 0;

    buffer[1] = 0;

    checksum = 0;

    size = 0;

    rewind(input);

    while(fread(&buffer, sizeof(unsigned char), 2, input) != 0) {

      tmp = (((uint16_t)buffer[1] << 8) | buffer[0]);

      checksum = checksum ^ tmp;

      fputc(buffer[1], output);

      fputc(buffer[0], output);

      size += 2;

    }

    // build header

    rewind(output);

    fputc((unsigned char)(0xCA), output);

    fputc((unsigned char)(0xFE), output);

    fputc((unsigned char)((size & 0xFF00) >> 8), output);

    fputc((unsigned char)((size & 0x00FF) >> 0), output);

    fputc((unsigned char)((checksum & 0xFF00) >> 8), output);

    fputc((unsigned char)((checksum & 0x00FF) >> 0), output);

  }

// ------------------------------------------------------------

// Generate APPLICATION's executable memory init file (no header!!!)

// ------------------------------------------------------------

  if (option == 2) {

        // header

    sprintf(tmp_string, "-- The NEO430 Processor Project, by Stephan Nolting\r\n"

                                                "-- Auto-generated memory init file (for APPLICATION)\r\n"

                                                "\r\n"

                                                "library ieee;\r\n"

                                                "use ieee.std_logic_1164.all;\r\n"

                                                "\r\n"

                                                "package neo430_application_image is\r\n"

                                                "\r\n"

                                                "  type application_init_image_t is array (0 to 65535) of std_ulogic_vector(15 downto 0);\r\n"

                                                "  constant application_init_image : application_init_image_t := (\r\n");

    fputs(tmp_string, output);

        // data

    buffer[0] = 0;

    buffer[1] = 0;

    i = 0;

    while(fread(&buffer, sizeof(unsigned char), 2, input) != 0) {

      tmp = (((uint16_t)buffer[1] << 8) | buffer[0]);

      sprintf(tmp_string, "    %06d => x\"%04x\",\r\n", i, tmp);

      fputs(tmp_string, output);

      buffer[0] = 0;

      buffer[1] = 0;

      i++;

    }

    sprintf(tmp_string, "    others => x\"0000\"\r\n");

    fputs(tmp_string, output);

        // end

    sprintf(tmp_string, "  );\r\n"

                                                "\r\n"

                                                "end neo430_application_image;\r\n");

    fputs(tmp_string, output);

  }

// ------------------------------------------------------------

// Generate BOOTLOADER's executable memory init file (no header!!!)

// ------------------------------------------------------------

  if (option == 3) {

        // header

    sprintf(tmp_string, "-- The NEO430 Processor Project, by Stephan Nolting\r\n"

                                                "-- Auto-generated memory init file (for BOOTLOADER)\r\n"

                                                "\r\n"

                                                "library ieee;\r\n"

                                                "use ieee.std_logic_1164.all;\r\n"

                                                "\r\n"

                                                "package neo430_bootloader_image is\r\n"

                                                "\r\n"

                                                "  type bootloader_init_image_t is array (0 to 65535) of std_ulogic_vector(15 downto 0);\r\n"

                                                "  constant bootloader_init_image : bootloader_init_image_t := (\r\n");

    fputs(tmp_string, output);

        // data

    buffer[0] = 0;

    buffer[1] = 0;

    i = 0;

    while(fread(&buffer, sizeof(unsigned char), 2, input) != 0) {

      tmp = (((uint16_t)buffer[1] << 8) | buffer[0]);

      sprintf(tmp_string, "    %06d => x\"%04x\",\r\n", i, tmp);

      fputs(tmp_string, output);

      buffer[0] = 0;

      buffer[1] = 0;

      i++;

    }

    sprintf(tmp_string, "    others => x\"0000\"\r\n");

    fputs(tmp_string, output);

        // end

    sprintf(tmp_string, "  );\r\n"

                                                "\r\n"

                                                "end neo430_bootloader_image;\r\n");

    fputs(tmp_string, output);

  }

  fclose(input);

  fclose(output);

  return 0;

}