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avrdude
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Add support for memory "fill" with arbitrary data too 

If you run the following command: $ write eeprom 0x00 0x10 A B C ...

It will write the following data to EEPROM:
|ABCCCCCCCCCCCCCC|
starting from address 0x00
This commit is contained in:
MCUdude 2022-02-17 13:00:30 +01:00
parent c007dc7d24
commit 2a92b8cce4
1 changed files with 29 additions and 33 deletions
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48
src/term.c
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@ -336,7 +336,7 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
unsigned char b;
int rc;
int werror;
int write_mode;
int write_mode, start_offset;
AVRMEM * mem;
if (argc < 4) {
@ -370,8 +370,8 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
return -1;
}
// Figure out how many bytes to write to memory
if(strcmp(argv[5], "...") == 0) {
// Figure out how many bytes there is to write to memory
if(strcmp(argv[argc - 1], "...") == 0) {
write_mode = WRITE_MODE_FILL;
len = strtoul(argv[3], &e, 0);
if (*e || (e == argv[3])) {
@ -397,38 +397,34 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p,
return -1;
}
if(write_mode == WRITE_MODE_STANDARD) {
for (i=3; i<argc; i++) {
unsigned char write_val = strtoul(argv[i], &e, 0);
if (write_mode == WRITE_MODE_STANDARD)
start_offset = 3; // Data to write from argument no. 3
else if (write_mode == WRITE_MODE_FILL)
start_offset = 4;
else {
avrdude_message(MSG_INFO, "%s (write): invalid write mode %d\n",
progname, write_mode);
return -1;
}
unsigned char write_val;
for (i = start_offset; i < argc - start_offset + 3; i++) {
write_val = strtoul(argv[i], &e, 0);
if (*e || (e == argv[i])) {
// If passed argument is a single character
if(argv[i][1] == '\0') {
// Accept if passed argument is a single character
if (argv[i][1] == '\0') {
write_val = argv[i][0];
} else {
avrdude_message(MSG_INFO, "%s (write): can't parse byte \"%s\"\n",
avrdude_message(MSG_INFO, "%s (write ...): can't parse byte \"%s\"\n",
progname, argv[i]);
free(buf);
return -1;
}
}
buf[i-3] = write_val;
}
} else if(write_mode == WRITE_MODE_FILL) {
unsigned char fill_val = strtoul(argv[4], &e, 0);
if (*e || (e == argv[4])) {
// If passed argument is a single character
if(argv[4][1] == '\0') {
fill_val = argv[4][0];
} else {
avrdude_message(MSG_INFO, "%s (write ...): can't parse byte \"%s\"\n",
progname, argv[4]);
free(buf);
return -1;
}
}
for (i = 0; i < len; i++) {
buf[i] = fill_val;
buf[i - start_offset] = write_val;
}
for (; i < len + start_offset; i++) {
buf[i - start_offset] = write_val;
}
pgm->err_led(pgm, OFF);