Contributed by Alan Horstmann:
Fix handling of devices > 128 KiB in stk500v1 protocol * stk500.c: Implement extended address byte handling. * avrdude.conf.in (ATmega2560): enable stk500_devcode so STK500v1 protocol actually starts at all. git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1270 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
joerg_wunsch
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b6fd404109
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404ded3db6
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@ -1,3 +1,11 @@
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2014-01-22 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
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Contributed by Alan Horstmann:
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Fix handling of devices > 128 KiB in stk500v1 protocol
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* stk500.c: Implement extended address byte handling.
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* avrdude.conf.in (ATmega2560): enable stk500_devcode so
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STK500v1 protocol actually starts at all.
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2014-01-17 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
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* flip1.c: Implement the meat of FLIP version 1 protocol.
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1
NEWS
1
NEWS
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@ -21,6 +21,7 @@ Current:
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- bug #40055: AVRDUDE segfaults when writing eeprom
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- bug #40085: Typo fix in fuses report (for 6.1-svn-20130917)
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- bug #40817: Elf file support (possibly) not working on 6.0.1 windows build
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- [no-id]: Fix handling of devices > 128 KiB in stk500v1 protocol
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- patch #7896: DFU FLIPv2 programming support
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- patch #XXXX: xxx
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@ -10058,7 +10058,7 @@ part
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desc = "ATmega2560";
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signature = 0x1e 0x98 0x01;
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has_jtag = yes;
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# stk500_devcode = 0xB2;
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stk500_devcode = 0xB2;
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# avr910_devcode = 0x43;
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chip_erase_delay = 9000;
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pagel = 0xD7;
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54
stk500.c
54
stk500.c
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@ -1,7 +1,7 @@
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/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Copyright (C) 2002-2004 Brian S. Dean <bsd@bsdhome.com>
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* Copyright (C) 2008 Joerg Wunsch
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* Copyright (C) 2008,2014 Joerg Wunsch
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -46,6 +46,15 @@
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#define STK500_XTAL 7372800U
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#define MAX_SYNC_ATTEMPTS 10
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struct pdata
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{
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unsigned char ext_addr_byte; /* Record ext-addr byte set in the
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* target device (if used) */
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};
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#define PDATA(pgm) ((struct pdata *)(pgm->cookie))
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static int stk500_getparm(PROGRAMMER * pgm, unsigned parm, unsigned * value);
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static int stk500_setparm(PROGRAMMER * pgm, unsigned parm, unsigned value);
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static void stk500_print_parms1(PROGRAMMER * pgm, const char * p);
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@ -696,14 +705,31 @@ static void stk500_close(PROGRAMMER * pgm)
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}
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static int stk500_loadaddr(PROGRAMMER * pgm, unsigned int addr)
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static int stk500_loadaddr(PROGRAMMER * pgm, AVRMEM * mem, unsigned int addr)
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{
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unsigned char buf[16];
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int tries;
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unsigned char ext_byte;
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OPCODE * lext;
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tries = 0;
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retry:
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tries++;
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/* To support flash > 64K words the correct Extended Address Byte is needed */
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lext = mem->op[AVR_OP_LOAD_EXT_ADDR];
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if (lext != NULL) {
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ext_byte = (addr >> 16) & 0xff;
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if (ext_byte != PDATA(pgm)->ext_addr_byte) {
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/* Either this is the first addr load, or a 64K word boundary is
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* crossed, so set the ext addr byte */
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avr_set_bits(lext, buf);
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avr_set_addr(lext, buf, addr);
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stk500_cmd(pgm, buf, buf);
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PDATA(pgm)->ext_addr_byte = ext_byte;
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}
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}
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buf[0] = Cmnd_STK_LOAD_ADDRESS;
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buf[1] = addr & 0xff;
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buf[2] = (addr >> 8) & 0xff;
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@ -796,7 +822,7 @@ static int stk500_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
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tries = 0;
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retry:
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tries++;
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stk500_loadaddr(pgm, addr/a_div);
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stk500_loadaddr(pgm, m, addr/a_div);
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/* build command block and avoid multiple send commands as it leads to a crash
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of the silabs usb serial driver on mac os x */
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@ -885,7 +911,7 @@ static int stk500_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
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tries = 0;
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retry:
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tries++;
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stk500_loadaddr(pgm, addr/a_div);
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stk500_loadaddr(pgm, m, addr/a_div);
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buf[0] = Cmnd_STK_READ_PAGE;
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buf[1] = (block_size >> 8) & 0xff;
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buf[2] = block_size & 0xff;
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@ -1276,6 +1302,24 @@ static void stk500_print_parms(PROGRAMMER * pgm)
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stk500_print_parms1(pgm, "");
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}
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static void stk500_setup(PROGRAMMER * pgm)
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{
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if ((pgm->cookie = malloc(sizeof(struct pdata))) == 0) {
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fprintf(stderr,
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"%s: stk500_setup(): Out of memory allocating private data\n",
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progname);
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exit(1);
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}
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memset(pgm->cookie, 0, sizeof(struct pdata));
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PDATA(pgm)->ext_addr_byte = 0xff; /* Ensures it is programmed before
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* first memory address */
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}
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static void stk500_teardown(PROGRAMMER * pgm)
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{
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free(pgm->cookie);
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}
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const char stk500_desc[] = "Atmel STK500 Version 1.x firmware";
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void stk500_initpgm(PROGRAMMER * pgm)
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@ -1307,5 +1351,7 @@ void stk500_initpgm(PROGRAMMER * pgm)
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pgm->set_varef = stk500_set_varef;
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pgm->set_fosc = stk500_set_fosc;
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pgm->set_sck_period = stk500_set_sck_period;
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pgm->setup = stk500_setup;
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pgm->teardown = stk500_teardown;
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pgm->page_size = 256;
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}
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