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Rework butterfly_write_byte()

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- Refactor flash/eeprom writes
  - Emphasise flash/userrow writes not implemented
  - Invalidate read cache (lest it gets forgotten)
This commit is contained in:
Stefan Rueger
2024-04-18 15:23:56 +01:00
parent 010969c197
commit 5e221a1fd6
1 changed files with 20 additions and 20 deletions
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40
src/butterfly.c
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@@ -453,30 +453,30 @@ static int butterfly_write_byte(const PROGRAMMER *pgm, const AVRPART *p, const A
{
char cmd[6];
int size;
int use_ext_addr = m->op[AVR_OP_LOAD_EXT_ADDR] != NULL;
if (mem_is_flash(m) || mem_is_eeprom(m))
{
if(mem_is_flash(m)) {
int ext_addr = m->op[AVR_OP_LOAD_EXT_ADDR] != NULL;
PDATA(pgm)->ctype = 0; // Invalidate read cache
cmd[0] = 'B';
cmd[1] = 0;
if ((cmd[3] = toupper((int)(m->desc[0]))) == 'E') { /* write to eeprom */
cmd[2] = 1;
cmd[4] = value;
size = 5;
} else { /* write to flash */
/* @@@ not yet implemented */
cmd[2] = 2;
size = 6;
return -1;
}
if (use_ext_addr) {
butterfly_set_extaddr(pgm, addr);
} else {
butterfly_set_addr(pgm, addr);
}
cmd[2] = 2;
cmd[3] = 'F';
size = 6;
(ext_addr? butterfly_set_extaddr: butterfly_set_addr)(pgm, addr >> 1);
return -1; // @@@ not yet implemented (and what about usersig?)
}
else if (mem_is_lock(m))
{
if(mem_is_eeprom(m)) {
cmd[0] = 'B';
cmd[1] = 0;
cmd[2] = 1;
cmd[3] = 'E';
cmd[4] = value;
size = 5;
butterfly_set_addr(pgm, addr);
} else if(mem_is_lock(m)) {
cmd[0] = 'l';
cmd[1] = value;
size = 2;