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avrdude
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Makefile: Add an install target. 

avrprog.c:

  Add license.

  Document the header a bit better.

  Add capability to read out and display the device signature bytes.

  Add capability to power the device from the parallel port.

  Eliminate debug print facility.

  Provide 'avr_cmd()' function.

  When memory locations don't program, generate a newline so that the
  information is not overwritten and lost.

  Don't print out the message about needing to specify a file if the
  user is not requesting an operation that requires the file.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@6 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Brian S. Dean 2000-08-06 03:53:06 +00:00
parent 324753a80c
commit a0e5150dd7
2 changed files with 202 additions and 113 deletions
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7
Makefile
View File

@ -4,6 +4,8 @@
TARGET = avrprog
DEST = ${HOME}/bin/0.${ARCH}
all : ${TARGET}
CFLAGS = -Wall
@ -14,3 +16,8 @@ ${TARGET} : avrprog.c
clean :
rm -f *.o ${TARGET} *~
install : ${DEST}/${TARGET}
${DEST}/${TARGET} : ${TARGET}
cp -p ${TARGET} $@

298
avrprog.c
View File

@ -1,19 +1,46 @@
/*
* Copyright 2000, Brian Dean
* Copyright 2000 Brian S. Dean <bsd@bsdhome.com>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY BRIAN S. DEAN ``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 BRIAN S. DEAN 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.
*
*/
/* $Id$ */
/*
* Code to program an Atmel AVR device using the parallel port.
* Code to program an Atmel AVR AT90S device using the parallel port.
*
* Make the following connections:
*
* Pin 2 -> PB7(SCK) CLOCK IN (data bit 0)
* Pin 3 -> PB5(MOSI) Instruction input (data bit 1)
* Pin 4 -> /RESET (data bit 2)
* Pin 10 <- PB6(MISO) Data out (status bit 6)
* Parallel Port Atmel AVR
* ------------- ----------------------------
* Pin 2 -> Vcc
* Pin 3 -> PB7(SCK) CLOCK IN
* Pin 4 -> PB5(MOSI) Instruction input
* Pin 5 -> /RESET
* Pin 10 <- PB6(MISO) Data out
*
*/
@ -33,9 +60,10 @@
char * progname;
#define AVR_CLOCK 0x01 /* bit 0 of data register */
#define AVR_INSTR 0x02 /* bit 1 of data register */
#define AVR_RESET 0x04 /* bit 2 of data register */
#define AVR_POWER 0x01 /* bit 0 of data register */
#define AVR_CLOCK 0x02 /* bit 1 of data register */
#define AVR_INSTR 0x04 /* bit 2 of data register */
#define AVR_RESET 0x08 /* bit 3 of data register */
#define AVR_DATA 0x40 /* bit 6 of status register */
@ -54,23 +82,6 @@ enum {
};
int dprintf ( FILE * f, char * format, ... )
{
#if DEBUG
va_list ap;
int rc;
va_start(ap,format);
rc = vfprintf(f,format,ap);
va_end(ap);
return rc;
#else
return 0;
#endif
}
int ppi_getops ( int reg, unsigned long * get, unsigned long * set )
{
switch (reg) {
@ -207,19 +218,32 @@ unsigned char avr_txrx ( int fd, unsigned char byte )
}
unsigned char avr_read_byte ( int fd, unsigned short addr, int memtype )
int avr_cmd ( int fd, unsigned char * cmd, unsigned char * res )
{
unsigned char r;
int i;
for (i=0; i<4; i++) {
res[i] = avr_txrx(fd, cmd[i]);
}
return 0;
}
unsigned char avr_read_byte ( int fd, int memtype, unsigned short addr )
{
unsigned char cmd[4];
unsigned char res[4];
switch (memtype) {
case AVR_FLASH_LO:
avr_txrx(fd, 0x20);
cmd[0] = 0x20;
break;
case AVR_FLASH_HI:
avr_txrx(fd, 0x28);
cmd[0] = 0x28;
break;
case AVR_EEPROM:
avr_txrx(fd, 0xa0);
cmd[0] = 0xa0;
addr &= 0x7f;
break;
default:
@ -229,24 +253,28 @@ unsigned char avr_read_byte ( int fd, unsigned short addr, int memtype )
break;
}
avr_txrx(fd, addr >> 8); /* high order bits of address */
avr_txrx(fd, addr & 0x0ff); /* low order bits of address */
r = avr_txrx(fd, 0); /* don't care */
cmd[1] = addr >> 8; /* high order bits of address */
cmd[2] = addr & 0x0ff; /* low order bits of address */
cmd[3] = 0; /* don't care */
return r;
avr_cmd(fd, cmd, res);
return res[3];
}
int avr_read ( int fd, int memtype, unsigned start, unsigned n,
unsigned char * buf, int bufsize )
{
unsigned char rbyte;
unsigned short data;
unsigned char rbyte, memt;
unsigned short end, i, bi;
switch (memtype) {
case AVR_FLASH :
memt = AVR_FLASH_LO;
break;
case AVR_EEPROM :
memt = memtype;
break;
default:
fprintf(stderr, "%s: avr_read(); internal error: invalid memtype=%d\n",
@ -260,29 +288,21 @@ int avr_read ( int fd, int memtype, unsigned start, unsigned n,
bi = 0;
for (i=start; i<end; i++) {
/* eeprom or low byte of flash */
rbyte = avr_read_byte(fd, memt, i);
fprintf ( stderr, " \r%4u 0x%02x", i, rbyte );
if (bi < bufsize) {
buf[bi++] = rbyte;
}
if (memtype == AVR_FLASH) {
rbyte = avr_read_byte(fd, i, AVR_FLASH_LO); /* flash low byte */
fprintf ( stderr, " \r%4u 0x%02x", i, rbyte );
data = rbyte;
if (bi < bufsize) {
buf[bi++] = rbyte;
}
rbyte = avr_read_byte(fd, i, AVR_FLASH_HI); /* flash high byte */
/* flash high byte */
rbyte = avr_read_byte(fd, AVR_FLASH_HI, i);
fprintf ( stderr, " 0x%02x", rbyte );
data |= (rbyte << 8);
if (bi < bufsize) {
buf[bi++] = rbyte;
}
}
else {
rbyte = avr_read_byte(fd, i, memtype); /* eeprom byte */
fprintf ( stderr, " \r%4u 0x%02x", i, rbyte );
if (bi < bufsize) {
buf[bi++] = rbyte;
}
}
}
fprintf ( stderr, "\n" );
@ -293,19 +313,20 @@ int avr_read ( int fd, int memtype, unsigned start, unsigned n,
int avr_write_byte ( int fd, int memtype, unsigned short addr, unsigned char data )
{
unsigned char cmd[4], res[4];
unsigned char r;
int ready;
int tries;
switch (memtype) {
case AVR_FLASH_LO:
avr_txrx(fd, 0x40);
cmd[0] = 0x40;
break;
case AVR_FLASH_HI:
avr_txrx(fd, 0x48);
cmd[0] = 0x48;
break;
case AVR_EEPROM:
avr_txrx(fd, 0xc0);
cmd[0] = 0xc0;
addr &= 0x7f;
break;
default:
@ -315,26 +336,32 @@ int avr_write_byte ( int fd, int memtype, unsigned short addr, unsigned char dat
break;
}
avr_txrx(fd, addr >> 8); /* high order bits of address */
avr_txrx(fd, addr & 0x0ff); /* low order bits of address */
avr_txrx(fd, data); /* data */
cmd[1] = addr >> 8; /* high order bits of address */
cmd[2] = addr & 0x0ff; /* low order bits of address */
cmd[3] = data; /* data */
avr_cmd(fd, cmd, res);
tries = 0;
ready = 0;
while (!ready) {
usleep(5000); /* flash write delay */
r = avr_read_byte ( fd, addr, memtype );
r = avr_read_byte(fd, memtype, addr);
if (data == 0x7f) {
usleep(20000);
usleep(20000); /* long delay for 0x7f since polling doesn't work */
ready = 1;
}
else if (r == data) {
ready = 1;
}
tries++;
if (!ready && tries > 10) {
fprintf(stderr, "**" );
ready = 1;
/*
* we couldn't write the data, indicate our displeasure by
* returning an error code
*/
return -1;
}
}
@ -343,17 +370,21 @@ int avr_write_byte ( int fd, int memtype, unsigned short addr, unsigned char dat
int avr_write ( int fd, int memtype, unsigned start,
unsigned char * buf, int size )
unsigned char * buf, int bufsize )
{
unsigned char data;
unsigned char data, memt;
unsigned short end, i, bi;
int nl;
int rc;
switch (memtype) {
case AVR_FLASH :
end = start+size/2;
end = start+bufsize/2;
memt = AVR_FLASH_LO;
break;
case AVR_EEPROM :
end = start+size;
end = start+bufsize;
memt = memtype;
break;
default:
fprintf(stderr, "%s: avr_write(); internal error: invalid memtype=%d\n",
@ -365,23 +396,28 @@ int avr_write ( int fd, int memtype, unsigned start,
bi = 0;
for (i=start; i<end; i++) {
/* eeprom or low byte of flash */
data = buf[bi++];
nl = 0;
rc = avr_write_byte(fd, memt, i, data );
fprintf(stderr, " \r%4u 0x%02x", i, data);
if (rc) {
fprintf(stderr, " ***failed; ");
nl = 1;
}
if (memtype == AVR_FLASH) {
/* low byte */
/* high byte of flash */
data = buf[bi++];
avr_write_byte(fd, AVR_FLASH_LO, i, data );
fprintf ( stderr, " \r%4u 0x%02x", i, data );
/* high byte */
data = buf[bi++];
avr_write_byte(fd, AVR_FLASH_HI, i, data );
rc = avr_write_byte(fd, AVR_FLASH_HI, i, data );
fprintf(stderr, " 0x%02x", data);
if (rc) {
fprintf(stderr, " ***failed; " );
nl = 1;
}
else {
data = buf[bi++];
avr_write_byte(fd, memtype, i, data );
fprintf ( stderr, " \r%4u 0x%02x", i, data );
}
if (nl)
fprintf(stderr, "\n");
}
fprintf ( stderr, "\n" );
@ -392,23 +428,12 @@ int avr_write ( int fd, int memtype, unsigned start,
int avr_program_enable ( int fd )
{
unsigned char data[4] = {0xac, 0x53, 0x00, 0x00};
unsigned char byte, rbyte;
int avrok;
int i;
unsigned char cmd[4] = {0xac, 0x53, 0x00, 0x00};
unsigned char res[4];
avrok = 0;
avr_cmd(fd, cmd, res);
for (i=0; i<4; i++) {
byte = data[i];
rbyte = avr_txrx ( fd, byte );
if (i == 2) {
if (rbyte == data[1])
avrok = 1;
}
}
if (!avrok)
if (res[2] != cmd[1])
return -1;
return 0;
@ -418,11 +443,9 @@ int avr_program_enable ( int fd )
int avr_chip_erase ( int fd )
{
unsigned char data[4] = {0xac, 0x80, 0x00, 0x00};
int i;
unsigned char res[4];
for (i=0; i<4; i++) {
avr_txrx ( fd, data[i] );
}
avr_cmd(fd, data, res);
usleep(20000);
@ -430,11 +453,42 @@ int avr_chip_erase ( int fd )
}
int avr_signature ( int fd, char sig[4] )
{
unsigned char cmd[4] = {0x30, 0x00, 0x00, 0x00};
unsigned char res[4];
int i;
for (i=0; i<4; i++) {
cmd[2] = i;
avr_cmd(fd, cmd, res);
sig[i] = res[3];
}
return 0;
}
void avr_powerup ( int fd )
{
ppi_set(fd, PPIDATA, AVR_POWER); /* power up */
usleep(100000);
}
void avr_powerdown ( int fd )
{
ppi_clr(fd, PPIDATA, AVR_POWER); /* power down */
}
int avr_initialize ( int fd )
{
int rc;
int tries;
avr_powerup(fd);
ppi_clr(fd, PPIDATA, AVR_CLOCK);
ppi_clr(fd, PPIDATA, AVR_RESET);
ppi_toggle(fd, PPIDATA, AVR_RESET);
@ -504,9 +558,10 @@ int main ( int argc, char * argv [] )
int fd;
int rc;
unsigned char buf[2048];
unsigned char sig[4];
int ch;
int iofd;
int flash, eeprom, doread, erase;
int flash, eeprom, doread, erase, dosig;
int size;
char * outputf;
char * inputf;
@ -518,6 +573,7 @@ int main ( int argc, char * argv [] )
eeprom = 0;
flash = 0;
erase = 0;
dosig = 0;
progname = rindex(argv[0],'/');
if (progname)
@ -530,7 +586,7 @@ int main ( int argc, char * argv [] )
return 0;
}
while ((ch = getopt(argc,argv,"?efo:ru:")) != -1) {
while ((ch = getopt(argc,argv,"?efo:rsu:")) != -1) {
switch (ch) {
case 'e':
if (flash) {
@ -542,6 +598,9 @@ int main ( int argc, char * argv [] )
case 'r':
erase = 1;
break;
case 's':
dosig = 1;
break;
case 'f':
if (eeprom) {
fprintf(stderr,"%s: -e and -f are incompatible\n", progname);
@ -606,6 +665,7 @@ int main ( int argc, char * argv [] )
rc = avr_initialize(fd);
if (rc < 0) {
fprintf ( stderr, "%s: initialization failed, rc=%d\n", progname, rc );
avr_powerdown(fd);
return 1;
}
@ -619,9 +679,22 @@ int main ( int argc, char * argv [] )
fprintf(stderr, "%s: done.\n", progname );
}
if (dosig) {
int i;
fprintf(stderr, "%s: reading signature bytes: ", progname );
avr_signature(fd, sig);
for (i=0; i<4; i++)
fprintf(stderr, "0x%02x ", sig[i]);
fprintf(stderr, "\n");
}
if (iofd < 0) {
if (eeprom||flash) {
fprintf(stderr, "%s: you must specify an input or an output file\n",
progname);
}
avr_powerdown(fd);
close(fd);
return 1;
}
@ -629,6 +702,7 @@ int main ( int argc, char * argv [] )
fprintf(stderr,
"%s: please specify either the eeprom (-e) or the flash (-f) memory\n",
progname);
avr_powerdown(fd);
return 1;
}
@ -643,6 +717,7 @@ int main ( int argc, char * argv [] )
if (rc) {
fprintf ( stderr, "%s: failed to read all of flash memory, rc=%d\n",
progname, rc );
avr_powerdown(fd);
return 1;
}
}
@ -653,6 +728,7 @@ int main ( int argc, char * argv [] )
if (rc) {
fprintf ( stderr, "%s: failed to read all of eeprom memory, rc=%d\n",
progname, rc );
avr_powerdown(fd);
return 1;
}
}
@ -660,11 +736,13 @@ int main ( int argc, char * argv [] )
rc = write ( iofd, buf, size );
if (rc < 0) {
fprintf(stderr, "%s: write error: %s\n", progname, strerror(errno));
avr_powerdown(fd);
return 1;
}
else if (rc != size) {
fprintf(stderr, "%s: wrote only %d bytes of the expected %d\n",
progname, rc, size);
avr_powerdown(fd);
return 1;
}
}
@ -684,34 +762,38 @@ int main ( int argc, char * argv [] )
if (rc < 0) {
fprintf(stderr, "%s: read error from \"%s\": %s\n",
progname, inputf, strerror(errno));
return 1;
}
else if (rc != size) {
fprintf(stderr, "%s: read only %d bytes of the expected %d from \"%s\"\n",
progname, rc, size, inputf);
avr_powerdown(fd);
return 1;
}
size = rc;
if (flash) {
fprintf ( stderr, "%s: writing flash memory:\n", progname );
fprintf(stderr, "%s: writing %d bytes into flash memory:\n",
progname, size);
rc = avr_write ( fd, AVR_FLASH, 0, buf, size );
if (rc) {
fprintf ( stderr, "%s: failed to write flash memory, rc=%d\n",
progname, rc );
avr_powerdown(fd);
return 1;
}
}
else if (eeprom) {
fprintf ( stderr, "%s: writing eeprom memory:\n", progname );
fprintf(stderr, "%s: writing %d bytes into eeprom memory:\n",
progname, size);
rc = avr_write ( fd, AVR_EEPROM, 0, buf, size );
if (rc) {
fprintf ( stderr, "%s: failed to write eeprom memory, rc=%d\n",
progname, rc );
avr_powerdown(fd);
return 1;
}
}
}
avr_powerdown(fd);
close(fd);
close(iofd);