avr
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avrdude
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Fix programming of write-only memories (such as lock bits on the 

2313).


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@116 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
bsd 2002-01-12 01:26:09 +00:00
parent 45765ef2d7
commit ecf7476537
2 changed files with 47 additions and 11 deletions
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45
avr.c
View File

@ -42,6 +42,8 @@
#include "ppi.h"
#define DEBUG 0
extern char * progname;
extern char progbuf[];
extern PROGRAMMER * pgm;
@ -377,9 +379,11 @@ int avr_read_byte(int fd, AVRPART * p, AVRMEM * mem, unsigned long addr,
}
if (readop == NULL) {
#if DEBUG
fprintf(stderr,
"avr_read_byte(): operation not supported on memory type \"%s\"\n",
p->desc);
#endif
return -1;
}
@ -430,11 +434,15 @@ int avr_read(int fd, AVRPART * p, char * memtype, int size, int verbose)
rc = avr_read_byte(fd, p, mem, i, &rbyte);
if (rc != 0) {
fprintf(stderr, "avr_read(): error reading address 0x%04lx\n", i);
if (rc == -1)
fprintf(stderr,
" read operation not supported for memory \"%s\"\n",
memtype);
return -2;
}
buf[i] = rbyte;
if (verbose) {
if (i % 16 == 0)
if ((i % 16 == 0)||(i == (size-1)))
fprintf(stderr, " \r%4lu 0x%02x", i, rbyte);
}
}
@ -505,6 +513,7 @@ int avr_write_byte(int fd, AVRPART * p, AVRMEM * mem,
unsigned short caddr;
OPCODE * writeop;
int rc;
int readok=0;
if (!mem->paged) {
/*
@ -513,11 +522,19 @@ int avr_write_byte(int fd, AVRPART * p, AVRMEM * mem,
* use this optimization for paged addressing.
*/
rc = avr_read_byte(fd, p, mem, addr, &b);
if (rc != 0)
return -1;
if (b == data) {
return 0;
if (rc != 0) {
if (rc != -1) {
return -1;
}
/*
* the read operation is not support on this memory type
*/
}
else {
readok = 1;
if (b == data) {
return 0;
}
}
}
@ -544,9 +561,11 @@ int avr_write_byte(int fd, AVRPART * p, AVRMEM * mem,
}
if (writeop == NULL) {
#if DEBUG
fprintf(stderr,
"avr_write_byte(): write not support for memory type \"%s\"\n",
"avr_write_byte(): write not supported for memory type \"%s\"\n",
mem->desc);
#endif
return -1;
}
@ -571,6 +590,16 @@ int avr_write_byte(int fd, AVRPART * p, AVRMEM * mem,
return 0;
}
if (readok == 0) {
/*
* read operation not supported for this memory type, just wait
* the max programming time and then return
*/
usleep(mem->max_write_delay); /* maximum write delay */
LED_OFF(fd, pgm->pinno[PIN_LED_PGM]);
return 0;
}
tries = 0;
ready = 0;
while (!ready) {
@ -660,7 +689,7 @@ int avr_write(int fd, AVRPART * p, char * memtype, int size, int verbose)
for (i=0; i<wsize; i++) {
data = m->buf[i];
if (verbose) {
if (i % 16 == 0)
if ((i % 16 == 0)||(i == (wsize-1)))
fprintf(stderr, " \r%4lu 0x%02x ", i, data);
}
rc = avr_write_byte(fd, p, m, i, data);

7
term.c
View File

@ -278,6 +278,9 @@ int cmd_dump(int fd, struct avrpart * p, int argc, char * argv[])
if (rc != 0) {
fprintf(stderr, "error reading %s address 0x%05lx of part %s\n",
mem->desc, addr+i, p->desc);
if (rc == -1)
fprintf(stderr, "read operation not supported on memory type \"%s\"\n",
mem->desc);
return -1;
}
}
@ -370,6 +373,10 @@ int cmd_write(int fd, struct avrpart * p, int argc, char * argv[])
if (rc) {
fprintf(stderr, "%s (write): error writing 0x%02x at 0x%05lx\n",
progname, buf[i], addr+i);
if (rc == -1)
fprintf(stderr,
"write operation not supported on memory type \"%s\"\n",
mem->desc);
werror = 1;
}
if (werror) {