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This is a jajor re-write of the programming algorithms. The Atmel

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serial programming instructions are not very orthoganal, i.e., the
"read fuse bits" instruction on an ATMega103 is an entirely different
opcode and data format from the _same_ instruction for an ATMega163!
Thus, it becomes impossible to have a single instruction encoding
(varying the data) across the chip lines.

This set of changes allows and requires instruction encodings to be
defined on a per-part basis within the configuration file.  Hopefully
I've defined the encoding scheme in a general enough way so it is
useful in describing the instruction formats for yet-to-be invented
Atmel chips.  I've tried hard to make it match very closely with the
specification in Atmel's data sheets for their parts.  It's a little
more verbose than what I initially hoped for, but I've tried to keep
it as concise as I could, while still remaining reasonably flexible.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@100 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Brian S. Dean
2001-11-21 02:46:55 +00:00
parent f1af5d3981
commit fb233af934
12 changed files with 972 additions and 535 deletions
Download Patch File Download Diff File Expand all files Collapse all files

265
config_gram.y
View File

@@ -29,8 +29,23 @@
/* $Id$ */
%token K_OP
%token K_READ
%token K_WRITE
%token K_READ_LO
%token K_READ_HI
%token K_WRITE_LO
%token K_WRITE_HI
%token K_LOADPAGE_LO
%token K_LOADPAGE_HI
%token K_WRITEPAGE
%token K_CHIP_ERASE
%token K_PGM_ENABLE
%token K_MEMORY
%token K_PAGE_SIZE
%token K_PAGEED
%token K_PAGED
%token K_BUFF
%token K_CHIP_ERASE_DELAY
%token K_DESC
@@ -107,7 +122,8 @@ part_def :
{ current_part = avr_new_part(); }
part_parms
{
unsigned int i, j, shift, psize;
LNODEID ln;
AVRMEM * m;
if (current_part->id[0] == 0) {
fprintf(stderr,
@@ -121,49 +137,35 @@ part_def :
* to shift a page for constructing the page address for
* page-addressed memories.
*/
for (i=0; i<AVR_MAXMEMTYPES; i++) {
if (current_part->mem[i].paged) {
if (!current_part->mem[i].page_size) {
for (ln=lfirst(current_part->mem); ln; ln=lnext(ln)) {
m = ldata(ln);
if (m->paged) {
if (m->page_size == 0) {
fprintf(stderr,
"%s: error at %s:%d: must specify page_size for paged "
"memory\n",
progname, infile, lineno);
exit(1);
}
if (!current_part->mem[i].num_pages) {
if (m->num_pages == 0) {
fprintf(stderr,
"%s: error at %s:%d: must specify num_pages for paged "
"memory\n",
progname, infile, lineno);
exit(1);
}
if (current_part->mem[i].size != current_part->mem[i].page_size *
current_part->mem[i].num_pages) {
if (m->size != m->page_size * m->num_pages) {
fprintf(stderr,
"%s: error at %s:%d: page size (%u) * num_pages (%u) = "
"%u does not match memory size (%u)\n",
progname, infile, lineno,
current_part->mem[i].page_size,
current_part->mem[i].num_pages,
current_part->mem[i].page_size * current_part->mem[i].num_pages,
current_part->mem[i].size);
m->page_size,
m->num_pages,
m->page_size * m->num_pages,
m->size);
exit(1);
}
shift = 0;
psize = current_part->mem[i].page_size / 2 - 1;
for (j=0; j<32 && !shift; j++) {
if ((psize >> j) == 0) {
shift = j;
}
}
if (!shift) {
fprintf(stderr,
"%s: error at %s:%d: can't determine amount to shift for the page address\n"
" Are you sure page_size (=%u) is correct?\n",
progname, infile, lineno, current_part->mem[i].page_size);
exit(1);
}
current_part->mem[i].pageaddr_shift = shift;
}
}
@@ -246,6 +248,21 @@ prog_parm :
;
opcode :
K_READ |
K_WRITE |
K_READ_LO |
K_READ_HI |
K_WRITE_LO |
K_WRITE_HI |
K_LOADPAGE_LO |
K_LOADPAGE_HI |
K_WRITEPAGE |
K_CHIP_ERASE |
K_PGM_ENABLE
;
part_parms :
part_parm TKN_SEMI |
part_parms part_parm TKN_SEMI
@@ -273,11 +290,46 @@ part_parm :
free_token($3);
} |
/*
K_EEPROM { current_mem = AVR_M_EEPROM; }
mem_specs |
K_FLASH { current_mem = AVR_M_FLASH; }
mem_specs
mem_specs |
*/
K_MEMORY TKN_STRING
{
current_mem = avr_new_memtype();
strcpy(current_mem->desc, strdup($2->value.string));
free_token($2);
}
mem_specs
{
ladd(current_part->mem, current_mem);
current_mem = NULL;
} |
opcode TKN_EQUAL string_list {
{
int opnum;
OPCODE * op;
if (lsize(string_list) != 32) {
fprintf(stderr,
"%s: error at %s:%d: only %d bits specified, need 32\n",
progname, infile, lineno, lsize(string_list));
exit(1);
}
opnum = which_opcode($1);
op = avr_new_opcode();
parse_cmdbits(op);
current_part->op[opnum] = op;
free_token($1);
}
}
;
@@ -295,52 +347,73 @@ mem_specs :
mem_spec :
K_PAGED TKN_EQUAL yesno
{
current_part->mem[current_mem].paged = $3->primary == K_YES ? 1 : 0;
current_mem->paged = $3->primary == K_YES ? 1 : 0;
free_token($3);
} |
K_SIZE TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].size = $3->value.number;
current_mem->size = $3->value.number;
free_token($3);
} |
K_PAGE_SIZE TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].page_size = $3->value.number;
current_mem->page_size = $3->value.number;
free_token($3);
} |
K_NUM_PAGES TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].num_pages = $3->value.number;
current_mem->num_pages = $3->value.number;
free_token($3);
} |
K_MIN_WRITE_DELAY TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].min_write_delay = $3->value.number;
current_mem->min_write_delay = $3->value.number;
free_token($3);
} |
K_MAX_WRITE_DELAY TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].max_write_delay = $3->value.number;
current_mem->max_write_delay = $3->value.number;
free_token($3);
} |
K_READBACK_P1 TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].readback[0] = $3->value.number;
current_mem->readback[0] = $3->value.number;
free_token($3);
} |
K_READBACK_P2 TKN_EQUAL TKN_NUMBER
{
current_part->mem[current_mem].readback[1] = $3->value.number;
current_mem->readback[1] = $3->value.number;
free_token($3);
} |
opcode TKN_EQUAL string_list {
{
int opnum;
OPCODE * op;
if (lsize(string_list) != 32) {
fprintf(stderr,
"%s: error at %s:%d: only %d bits specified, need 32\n",
progname, infile, lineno, lsize(string_list));
exit(1);
}
opnum = which_opcode($1);
op = avr_new_opcode();
parse_cmdbits(op);
current_mem->op[opnum] = op;
free_token($1);
}
}
;
@@ -392,3 +465,123 @@ static int assign_pin(int pinno, TOKEN * v)
return 0;
}
static int which_opcode(TOKEN * opcode)
{
switch (opcode->primary) {
case K_READ : return AVR_OP_READ; break;
case K_WRITE : return AVR_OP_WRITE; break;
case K_READ_LO : return AVR_OP_READ_LO; break;
case K_READ_HI : return AVR_OP_READ_HI; break;
case K_WRITE_LO : return AVR_OP_WRITE_LO; break;
case K_WRITE_HI : return AVR_OP_WRITE_HI; break;
case K_LOADPAGE_LO : return AVR_OP_LOADPAGE_LO; break;
case K_LOADPAGE_HI : return AVR_OP_LOADPAGE_HI; break;
case K_WRITEPAGE : return AVR_OP_WRITEPAGE; break;
case K_CHIP_ERASE : return AVR_OP_CHIP_ERASE; break;
case K_PGM_ENABLE : return AVR_OP_PGM_ENABLE; break;
default :
fprintf(stderr,
"%s: error at %s:%d: invalid opcode\n",
progname, infile, lineno);
exit(1);
break;
}
}
static int parse_cmdbits(OPCODE * op)
{
TOKEN * t;
int bitno;
char ch;
char * e;
char * q;
int len;
bitno = 31;
while (lsize(string_list)) {
t = lrmv_n(string_list, 1);
len = strlen(t->value.string);
if (len == 0) {
fprintf(stderr,
"%s: error at %s:%d: invalid bit specifier \"\"\n",
progname, infile, lineno);
exit(1);
}
ch = t->value.string[0];
if (len == 1) {
switch (ch) {
case '1':
op->bit[bitno].type = AVR_CMDBIT_VALUE;
op->bit[bitno].value = 1;
op->bit[bitno].bitno = bitno % 8;
break;
case '0':
op->bit[bitno].type = AVR_CMDBIT_VALUE;
op->bit[bitno].value = 0;
op->bit[bitno].bitno = bitno % 8;
break;
case 'x':
op->bit[bitno].type = AVR_CMDBIT_IGNORE;
op->bit[bitno].value = 0;
op->bit[bitno].bitno = bitno % 8;
break;
case 'a':
op->bit[bitno].type = AVR_CMDBIT_ADDRESS;
op->bit[bitno].value = 0;
op->bit[bitno].bitno = 8*(bitno/8) + bitno % 8;
break;
case 'i':
op->bit[bitno].type = AVR_CMDBIT_INPUT;
op->bit[bitno].value = 0;
op->bit[bitno].bitno = bitno % 8;
break;
case 'o':
op->bit[bitno].type = AVR_CMDBIT_OUTPUT;
op->bit[bitno].value = 0;
op->bit[bitno].bitno = bitno % 8;
break;
default :
fprintf(stderr,
"%s: error at %s:%d: invalid bit specifier '%c'\n",
progname, infile, lineno, ch);
exit(1);
break;
}
}
else {
if (ch == 'a') {
q = &t->value.string[1];
op->bit[bitno].bitno = strtol(q, &e, 0);
if ((e == q)||(*e != 0)) {
fprintf(stderr,
"%s: error at %s:%d: can't parse bit number from \"%s\"\n",
progname, infile, lineno, q);
exit(1);
}
op->bit[bitno].type = AVR_CMDBIT_ADDRESS;
op->bit[bitno].value = 0;
}
else {
fprintf(stderr,
"%s: error at %s:%d: invalid bit specifier \"%s\"\n",
progname, infile, lineno, t->value.string);
exit(1);
}
}
free_token(t);
bitno--;
} /* while */
return 0;
}