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Fix byte-wise EEPROM and flash writes on Xmega 

* jtagmkII_private.h (MTYPE_EEPROM_XMEGA): New memory type.
* jtagmkII.c (jtagmkII_write_byte): For Xmega EEPROM, use
memory type MTYPE_EEPROM_XMEGA; for flash writes, always
write 2 bytes starting on an even address.



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1212 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
joerg_wunsch 2013-09-08 19:57:58 +00:00
parent ba8b2ebb53
commit 016c452d92
3 changed files with 23 additions and 6 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2013-09-08 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Fix byte-wise EEPROM and flash writes on Xmega
* jtagmkII_private.h (MTYPE_EEPROM_XMEGA): New memory type.
* jtagmkII.c (jtagmkII_write_byte): For Xmega EEPROM, use
memory type MTYPE_EEPROM_XMEGA; for flash writes, always
write 2 bytes starting on an even address.
2013-09-08 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
* term.c: Implement the "verbose" terminal mode command.

20
jtagmkII.c
View File

@ -2465,9 +2465,9 @@ fail:
static int jtagmkII_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
unsigned long addr, unsigned char data)
{
unsigned char cmd[11];
unsigned char *resp = NULL, writedata;
int status, tries, need_progmode = 1, unsupp = 0;
unsigned char cmd[12];
unsigned char *resp = NULL, writedata, writedata2 = 0xFF;
int status, tries, need_progmode = 1, unsupp = 0, writesize = 1;
if (verbose >= 2)
fprintf(stderr, "%s: jtagmkII_write_byte(.., %s, 0x%lx, ...)\n",
@ -2479,12 +2479,19 @@ static int jtagmkII_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
cmd[0] = CMND_WRITE_MEMORY;
cmd[1] = ( p->flags & AVRPART_HAS_PDI ) ? MTYPE_FLASH : MTYPE_SPM;
if (strcmp(mem->desc, "flash") == 0) {
if ((addr & 1) == 1) {
/* odd address = high byte */
writedata = 0xFF; /* don't modify the low byte */
writedata2 = data;
addr &= ~1L;
}
writesize = 2;
need_progmode = 0;
PDATA(pgm)->flash_pageaddr = (unsigned long)-1L;
if (pgm->flag & PGM_FL_IS_DW)
unsupp = 1;
} else if (strcmp(mem->desc, "eeprom") == 0) {
cmd[1] = MTYPE_EEPROM;
cmd[1] = ( p->flags & AVRPART_HAS_PDI ) ? MTYPE_EEPROM_XMEGA: MTYPE_EEPROM;
need_progmode = 0;
PDATA(pgm)->eeprom_pageaddr = (unsigned long)-1L;
} else if (strcmp(mem->desc, "lfuse") == 0) {
@ -2533,16 +2540,17 @@ static int jtagmkII_write_byte(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
return -1;
}
u32_to_b4(cmd + 2, 1);
u32_to_b4(cmd + 2, writesize);
u32_to_b4(cmd + 6, addr);
cmd[10] = writedata;
cmd[11] = writedata2;
tries = 0;
retry:
if (verbose >= 2)
fprintf(stderr, "%s: jtagmkII_write_byte(): Sending write memory command: ",
progname);
jtagmkII_send(pgm, cmd, 11);
jtagmkII_send(pgm, cmd, 10 + writesize);
status = jtagmkII_recv(pgm, &resp);
if (status <= 0) {

1
jtagmkII_private.h
View File

@ -181,6 +181,7 @@
#define MTYPE_CAN 0xB6 /* CAN mailbox */
#define MTYPE_FLASH 0xc0 /* xmega (app.) flash - undocumented in AVR067 */
#define MTYPE_BOOT_FLASH 0xc1 /* xmega boot flash - undocumented in AVR067 */
#define MTYPE_EEPROM_XMEGA 0xc4 /* xmega EEPROM in debug mode - undocumented in AVR067 */
#define MTYPE_USERSIG 0xc5 /* xmega user signature - undocumented in AVR067 */
#define MTYPE_PRODSIG 0xc6 /* xmega production signature - undocumented in AVR067 */