tools/fsusb/bootload.h
changeset 2 2f55e5dd591d
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1:f08135942074 2:2f55e5dd591d
       
     1 /*
       
     2 ** This file is part of fsusb_picdem
       
     3 **
       
     4 ** fsusb_picdem is free software; you can redistribute it and/or
       
     5 ** modify it under the terms of the GNU General Public License as
       
     6 ** published by the Free Software Foundation; either version 2 of the
       
     7 ** License, or (at your option) any later version.
       
     8 **
       
     9 ** fsusb_picdem is distributed in the hope that it will be useful, but
       
    10 ** WITHOUT ANY WARRANTY; without even the implied warranty of
       
    11 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    12 ** General Public License for more details.
       
    13 **
       
    14 ** You should have received a copy of the GNU General Public License
       
    15 ** along with fsusb_picdem; if not, write to the Free Software
       
    16 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
       
    17 ** 02110-1301, USA
       
    18 */
       
    19 
       
    20 #ifndef __BOOTLOAD_H__
       
    21 #define __BOOTLOAD_H__
       
    22 
       
    23 
       
    24 
       
    25 /*
       
    26  * Command packets:
       
    27  *
       
    28  * 0x00: command
       
    29  * 0x01: data length (usually; different action for some commands!)
       
    30  * 0x02: address bits 7..0
       
    31  * 0x03: address bits 15..8
       
    32  * 0x04: address bits 23..16 (upper bits always zero)
       
    33  * 0x05: data[0]
       
    34  * 0x06: data[1]
       
    35  * 0x07: data[2]
       
    36  * 0x??: ...
       
    37  * 0x3f: data[BL_DATA_LEN-1]
       
    38  */
       
    39 
       
    40 
       
    41 
       
    42 typedef unsigned char byte;
       
    43 
       
    44 
       
    45 
       
    46 #define BL_PACKET_LEN 64
       
    47 #define BL_HEADER_LEN  5 // command, len, low, high, upper
       
    48 #define BL_DATA_LEN   (BL_PACKET_LEN - BL_HEADER_LEN)
       
    49 
       
    50 
       
    51 
       
    52 enum {
       
    53   READ_VERSION    = 0x00, // Works
       
    54   READ_FLASH      = 0x01, // Works
       
    55   WRITE_FLASH     = 0x02, // Works
       
    56   ERASE_FLASH     = 0x03, // Works
       
    57   READ_EEDATA     = 0x04, // NOT IMPLEMENTED
       
    58   WRITE_EEDATA    = 0x05, // NOT IMPLEMENTED
       
    59   READ_CONFIG     = 0x06, // NOT IMPLEMENTED
       
    60                           // (but in current firmware READ_FLASH works
       
    61   WRITE_CONFIG    = 0x07, // NOT TESTED
       
    62   UPDATE_LED      = 0x32, // NOT IMPLEMENTED
       
    63   RESET           = 0xFF  // NOT IMPLEMENTED
       
    64 };
       
    65 
       
    66 
       
    67 
       
    68 typedef union _bl_packet {
       
    69   byte _byte[64];
       
    70   struct {
       
    71     byte command;
       
    72     byte len;
       
    73     struct {
       
    74       byte low;
       
    75       byte high;
       
    76       byte upper;
       
    77     } address;
       
    78     byte data[BL_DATA_LEN];
       
    79   };
       
    80 } bl_packet;
       
    81 
       
    82 #endif /* __BOOTLOAD_H__ */