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avrdude
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Provide the ability to tie additionally tie pins 6-9 of the parallel 

port to Vcc in order to supply more current.

Fix a typo on the size of the S1200's Flash.

Bring RESET low when programming is completed.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@18 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Brian S. Dean 2000-12-31 18:42:42 +00:00
parent b2883dcc7a
commit 0024a06567
1 changed files with 15 additions and 11 deletions
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18
avrprog.c
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@ -40,13 +40,16 @@
* Pin 3 -> SCK CLOCK IN
* Pin 4 -> MOSI Instruction input
* Pin 5 -> /RESET
* Pin 6,7,8,9 -> Vcc (Can be tied together with Schottky diodes)
* Pin 10 <- MISO Data out
* Pin 18 <- GND
*
* NOTE on Vcc connection: make sure your parallel port can supply an
* adequate amount of current to power your device. 6-10 mA is
* common for parallel port signal lines, but is not guaranteed. If
* in doubt, use an external power supply.
* common for parallel port signal lines, but is not guaranteed.
* Optionally, you can tie pins 6, 7, 8, and 9 also to Vcc with
* Schottky diodes to supply additional current. If in doubt, don't
* risk damaging your parallel port, use an external power supply.
*/
#include <stdio.h>
@ -70,7 +73,7 @@ char * progname;
/*
* bit definitions for AVR device connections
*/
#define AVR_POWER 0x01 /* bit 0 of data register */
#define AVR_POWER 0xf1 /* bit 0 and 4...7 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 */
@ -109,7 +112,7 @@ struct avrpart {
struct avrpart parts[] = {
{ "AT90S8515", "8515", 8192, 512 },
{ "AT90S2313", "2313", 2048, 128 },
{ "AT90S1200", "1200", 1200, 64 }
{ "AT90S1200", "1200", 1024, 64 }
};
@ -665,7 +668,7 @@ void usage ( void )
int i;
fprintf ( stderr,
"\nUsage: %s [-r] [-e|-f] [-u InputFile|-o Outputfile]\n"
"\nUsage: %s [options]\n"
"\n"
" Available Options:\n"
" -r : erase the flash and eeprom (required before programming)\n"
@ -975,8 +978,9 @@ int main ( int argc, char * argv [] )
if (eeprom||flash) {
fprintf(stderr, "%s: you must specify an input or an output file\n",
progname);
}
exitrc = 1;
}
usage();
goto main_exit;
}
@ -1096,7 +1100,7 @@ int main ( int argc, char * argv [] )
avr_powerdown(fd);
ppi_clr(fd, PPIDATA, 0xff);
ppi_set(fd, PPIDATA, AVR_RESET);
ppi_clr(fd, PPIDATA, AVR_RESET);
close(fd);
close(iofd);