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Implement extended addressing needed for the ATmega256x devices. 

Document ATmega256x support.  Also document Solaris port defaults
in avrdude.texi.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@584 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
joerg_wunsch 2006-05-25 14:38:08 +00:00
parent b08245bd37
commit 024ef322d7
4 changed files with 80 additions and 18 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2006-05-25 Joerg Wunsch <j@uriah.heep.sax.de>
* stk500v2.c: Implement extended addressing needed
for the ATmega256x devices.
* avrdude.1: Document ATmega256x support.
* doc/avrdude.texi: Document ATmega256x support.
Also document Solaris port defaults.
2006-05-24 Joerg Wunsch <j@uriah.heep.sax.de>
* avr.c: Start implementing support for ATmega256x;

18
avrdude.1
View File

@ -1,6 +1,6 @@
.\"
.\" avrdude - A Downloader/Uploader for AVR device programmers
.\" Copyright (C) 2001, 2002, 2003, 2005 Joerg Wunsch
.\" Copyright (C) 2001, 2002, 2003, 2005, 2006 Joerg Wunsch
.\"
.\" This program is free software; you can redistribute it and/or modify
.\" it under the terms of the GNU General Public License as published by
@ -19,7 +19,7 @@
.\"
.\" $Id$
.\"
.Dd DATE November 29, 2005
.Dd DATE May 25, 2006
.Os
.Dt AVRDUDE 1
.Sh NAME
@ -170,21 +170,23 @@ pwm3 AT90PWM3
8535 AT90S8535
m103 ATmega103
m128 ATmega128
m1280 ATmega1280
m1281 ATmega1281
m1280 ATmega1280
m1281 ATmega1281
m16 ATmega16
m161 ATmega161
m162 ATmega162
m163 ATmega163
m164 ATmega164
m169 ATmega169
m2560 ATmega2560 (**)
m2561 ATmega2561 (**)
m32 ATmega32
m324 ATmega324
m329 ATmega329
m3290 ATmega3290
m48 ATmega48
m64 ATmega64
m640 ATmega640
m640 ATmega640
m644 ATmega644
m649 ATmega649
m6490 ATmega6490
@ -201,9 +203,13 @@ t26 ATtiny26
t45 ATtiny45
t85 ATtiny85
.TE
.Bl -tag -width "(*) "
.Bl -tag -width "(**) "
.It "(*)"
The AT90S2323 and ATtiny22 use the same algorithm.
.It "(**)"
Flash addressing above 128 KB is not supported by all
programming hardware. Known to work are jtag2, stk500v2,
and bit-bang programmers.
.El
.It Fl b Ar baudrate
Override the RS-232 connection baud rate specified in the respective

19
doc/avrdude.texi
View File

@ -28,7 +28,7 @@ This file documents the avrdude program.
For avrdude version @value{VERSION}, @value{UPDATED}.
Copyright @copyright{} 2003, 2005 Brian Dean
Copyright @copyright{} 2003, 2005, 2006 Brian Dean
Permission is granted to make and distribute verbatim copies of
this manual provided the copyright notice and this permission notice
@ -316,6 +316,12 @@ ATmega164
@itemx m169
ATmega169
@itemx m2560
ATmega2560 (**)
@itemx m2561
ATmega2561 (**)
@itemx m32
ATmega32
@ -386,6 +392,10 @@ ATtiny85
(*) The AT90S2323 and ATtiny22 use the same algorithm.
(**) Flash addressing above 128 KB is not supported by all
programming hardware. Known to work are jtag2, stk500v2,
and bit-bang programmers.
@item -b @var{baudrate}
Override the RS-232 connection baud rate specified in the respective
programmer's entry of the configuration file.
@ -1520,6 +1530,9 @@ The following table lists the default names for a given system.
@item Linux
@tab @code{/dev/parport0}
@tab @code{/dev/ttyS0}
@item Solaris
@tab @code{/dev/printers/0}
@tab @code{/dev/term/a}
@end multitable
On FreeBSD systems, AVRDUDE uses the ppi(4) interface for
@ -1530,6 +1543,10 @@ On Linux systems, AVRDUDE uses the ppdev interface for
accessing the parallel port and the tty driver for serial port
access.
On Solaris systems, AVRDUDE uses the ecpp(7D) driver for
accessing the parallel port and the asy(7D) driver for serial port
access.
@c
@c Node
@c

51
stk500v2.c
View File

@ -41,6 +41,7 @@
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
@ -554,8 +555,7 @@ static int stk500v2_loadaddr(PROGRAMMER * pgm, unsigned int addr)
static int stk500v2_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
int page_size, int n_bytes)
{
int addr, block_size, last_addr;
int a_div=1;
unsigned int addr, block_size, last_addr, hiaddr, addrshift, use_ext_addr;
unsigned char commandbuf[10];
unsigned char buf[266];
unsigned char cmds[4];
@ -565,17 +565,29 @@ static int stk500v2_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
DEBUG("STK500V2: stk500v2_paged_write(..,%s,%d,%d)\n",m->desc,page_size,n_bytes);
if (page_size == 0) page_size = 256;
hiaddr = UINT_MAX;
addrshift = 0;
use_ext_addr = 0;
// determine which command is to be used
if (strcmp(m->desc, "flash") == 0) {
a_div=2;
addrshift = 1;
commandbuf[0] = CMD_PROGRAM_FLASH_ISP;
/*
* If bit 31 is set, this indicates that the following read/write
* operation will be performed on a memory that is larger than
* 64KBytes. This is an indication to STK500 that a load extended
* address must be executed.
*/
if (m->op[AVR_OP_LOAD_EXT_ADDR] != NULL) {
use_ext_addr = (1U << 31);
}
} else if (strcmp(m->desc, "eeprom") == 0) {
commandbuf[0] = CMD_PROGRAM_EEPROM_ISP;
}
commandbuf[4] = m->delay;
if (a_div == 1) {
if (addrshift == 0) {
wop = m->op[AVR_OP_WRITE];
rop = m->op[AVR_OP_READ];
}
@ -631,7 +643,7 @@ static int stk500v2_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
commandbuf[8] = m->readback[0];
commandbuf[9] = m->readback[1];
last_addr=-1;
last_addr=UINT_MAX; /* impossible address */
for (addr=0; addr < n_bytes; addr += page_size) {
report_progress(addr,n_bytes,NULL);
@ -654,8 +666,8 @@ static int stk500v2_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
buf[1] = block_size >> 8;
buf[2] = block_size & 0xff;
if((last_addr==-1)||(last_addr+block_size != addr)){
stk500v2_loadaddr(pgm, addr/a_div);
if((last_addr==UINT_MAX)||(last_addr+block_size != addr)){
stk500v2_loadaddr(pgm, use_ext_addr | (addr >> addrshift));
}
last_addr=addr;
@ -690,7 +702,7 @@ static int stk500v2_is_page_empty(unsigned int address, int page_size,
static int stk500v2_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
int page_size, int n_bytes)
{
int addr, block_size;
unsigned int addr, block_size, hiaddr, addrshift, use_ext_addr;
unsigned char commandbuf[4];
unsigned char buf[275]; // max buffer size for stk500v2 at this point
unsigned char cmds[4];
@ -703,10 +715,24 @@ static int stk500v2_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
rop = m->op[AVR_OP_READ];
hiaddr = UINT_MAX;
addrshift = 0;
use_ext_addr = 0;
// determine which command is to be used
if (strcmp(m->desc, "flash") == 0) {
commandbuf[0] = CMD_READ_FLASH_ISP;
rop = m->op[AVR_OP_READ_LO];
addrshift = 1;
/*
* If bit 31 is set, this indicates that the following read/write
* operation will be performed on a memory that is larger than
* 64KBytes. This is an indication to STK500 that a load extended
* address must be executed.
*/
if (m->op[AVR_OP_LOAD_EXT_ADDR] != NULL) {
use_ext_addr = (1U << 31);
}
}
else if (strcmp(m->desc, "eeprom") == 0) {
commandbuf[0] = CMD_READ_EEPROM_ISP;
@ -721,8 +747,6 @@ static int stk500v2_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
avr_set_bits(rop, cmds);
commandbuf[3] = cmds[0];
stk500v2_loadaddr(pgm, 0);
for (addr=0; addr < n_bytes; addr += page_size) {
report_progress(addr, n_bytes,NULL);
@ -737,6 +761,13 @@ static int stk500v2_paged_load(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
buf[1] = block_size >> 8;
buf[2] = block_size & 0xff;
// Ensure a new "load extended address" will be issued
// when crossing a 64 KB boundary in flash.
if (hiaddr != (addr & ~0xFFFF)) {
hiaddr = addr & ~0xFFFF;
stk500v2_loadaddr(pgm, use_ext_addr | (addr >> addrshift));
}
result = stk500v2_command(pgm,buf,4,sizeof(buf));
if (buf[1] != STATUS_CMD_OK) {
fprintf(stderr,"%s: stk500v2_paged_load: read command failed with %d\n",