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bug #34027: avrdude AT90S1200 Problem (part 1 - bitbang 

programmers)
* config_gram.y: Introduce new keyword "is_at90s1200".
* lexer.l: (Ditto.)
* avrdude.conf.in: Applew new keyword to the AT90S1200 device.
* avrpart.h: Introduce new flag AVRPART_IS_AT90S1200, reflecting
the is_at90s1200 configuration keyword.
* bitbang.c (bitbang_initialize): Replace existing test for
AT90S1200 by AVRPART_IS_AT90S1200
* avr.c (avr_write_byte_default): Avoid the pre-write reading for
the AT90S1200, as this appears to sometimes corrupt the high byte
by pre-programming the low byte just written into it.




git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1002 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
joerg_wunsch 2011-08-29 09:25:04 +00:00
parent 405765b59a
commit a4c8ac47bb
7 changed files with 38 additions and 3 deletions
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15
ChangeLog
View File

@ -1,3 +1,18 @@
2011-08-29 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
bug #34027: avrdude AT90S1200 Problem (part 1 - bitbang
programmers)
* config_gram.y: Introduce new keyword "is_at90s1200".
* lexer.l: (Ditto.)
* avrdude.conf.in: Applew new keyword to the AT90S1200 device.
* avrpart.h: Introduce new flag AVRPART_IS_AT90S1200, reflecting
the is_at90s1200 configuration keyword.
* bitbang.c (bitbang_initialize): Replace existing test for
AT90S1200 by AVRPART_IS_AT90S1200
* avr.c (avr_write_byte_default): Avoid the pre-write reading for
the AT90S1200, as this appears to sometimes corrupt the high byte
by pre-programming the low byte just written into it.
2011-08-27 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
* configure.ac: Bump version for post-5.11.

8
avr.c
View File

@ -443,11 +443,17 @@ int avr_write_byte_default(PROGRAMMER * pgm, AVRPART * p, AVRMEM * mem,
return 0;
}
if (!mem->paged) {
if (!mem->paged &&
(p->flags & AVRPART_IS_AT90S1200) == 0) {
/*
* check to see if the write is necessary by reading the existing
* value and only write if we are changing the value; we can't
* use this optimization for paged addressing.
*
* For mysterious reasons, on the AT90S1200, this read operation
* sometimes causes the high byte of the same word to be
* programmed to the value of the low byte that has just been
* programmed before. Avoid that optimization on this device.
*/
rc = pgm->read_byte(pgm, p, mem, addr, &b);
if (rc != 0) {

1
avrdude.conf.in
View File

@ -1523,6 +1523,7 @@ part
part
id = "1200";
desc = "AT90S1200";
is_at90s1200 = yes;
stk500_devcode = 0x33;
avr910_devcode = 0x13;
signature = 0x1e 0x90 0x01;

1
avrpart.h
View File

@ -93,6 +93,7 @@ typedef struct opcode {
#define AVRPART_INIT_SMC 0x0200 /* part will undergo chip erase */
#define AVRPART_WRITE 0x0400 /* at least one write operation specified */
#define AVRPART_HAS_TPI 0x0800 /* part has TPI i/f rather than ISP (ATtiny4/5/9/10) */
#define AVRPART_IS_AT90S1200 0x1000 /* part is an AT90S1200 (needs special treatment) */
#define AVR_DESCLEN 64
#define AVR_IDLEN 32

2
bitbang.c
View File

@ -606,7 +606,7 @@ int bitbang_initialize(PROGRAMMER * pgm, AVRPART * p)
* order to possibly get back into sync with the chip if we are out
* of sync.
*/
if (strcmp(p->desc, "AT90S1200")==0) {
if (p->flags & AVRPART_IS_AT90S1200) {
pgm->program_enable(pgm, p);
}
else {

11
config_gram.y
View File

@ -225,6 +225,7 @@ static int parse_cmdbits(OPCODE * op);
%token K_HAS_PDI /* MCU has PDI i/f rather than ISP (ATxmega). */
%token K_HAS_TPI /* MCU has TPI i/f rather than ISP (ATtiny4/5/9/10). */
%token K_IDR /* address of OCD register in IO space */
%token K_IS_AT90S1200 /* chip is an AT90S1200 (needs special treatment) */
%token K_IS_AVR32 /* chip is in the avr32 family */
%token K_RAMPZ /* address of RAMPZ reg. in IO space */
%token K_SPMCR /* address of SPMC[S]R in memory space */
@ -1166,6 +1167,16 @@ part_parm :
free_token($3);
} |
K_IS_AT90S1200 TKN_EQUAL yesno
{
if ($3->primary == K_YES)
current_part->flags |= AVRPART_IS_AT90S1200;
else if ($3->primary == K_NO)
current_part->flags &= AVRPART_IS_AT90S1200;
free_token($3);
} |
K_IS_AVR32 TKN_EQUAL yesno
{
if ($3->primary == K_YES)

1
lexer.l
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@ -155,6 +155,7 @@ has_pdi { yylval=NULL; return K_HAS_PDI; }
has_tpi { yylval=NULL; return K_HAS_TPI; }
id { yylval=NULL; return K_ID; }
idr { yylval=NULL; return K_IDR; }
is_at90s1200 { yylval=NULL; return K_IS_AT90S1200; }
is_avr32 { yylval=NULL; return K_IS_AVR32; }
jtagmki { yylval=NULL; return K_JTAG_MKI; }
jtagmkii { yylval=NULL; return K_JTAG_MKII; }