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#822 Fixed bug in TPI byte write for ATtiny20 and ATtiny40.

This commit is contained in:
Jan Egil Ruud 2022-11-30 23:49:20 +01:00
parent b52bd393de
commit b643f0a1a0
1 changed files with 14 additions and 9 deletions
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23
src/jtag3.c
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@ -2689,6 +2689,7 @@ static int jtag3_erase_tpi(const PROGRAMMER *pgm, const AVRPART *p, const AVRMEM
static int jtag3_write_byte_tpi(const PROGRAMMER *pgm, const AVRPART *p, const AVRMEM *mem,
unsigned long addr, unsigned char data) {
size_t len = 11;
size_t data_size = 2;
unsigned char cmd[17];
unsigned char* resp;
int status;
@ -2702,11 +2703,22 @@ static int jtag3_write_byte_tpi(const PROGRAMMER *pgm, const AVRPART *p, const A
paddr = mem->offset + addr;
if (mem->n_word_writes != 0) {
if (mem->n_word_writes == 2) {
len = 13;
data_size = 4;
}
else if (mem->n_word_writes == 4) {
len = 17;
data_size = 8;
}
}
cmd[0] = XPRG_CMD_WRITE_MEM;
cmd[1] = tpi_get_memtype(mem);
cmd[2] = 0; // Page Mode - Not used
u32_to_b4_big_endian((cmd+3), paddr); // Address
u16_to_b2_big_endian((cmd+7), 2); // Size
u32_to_b4_big_endian((cmd+3), paddr); // Address
u16_to_b2_big_endian((cmd+7), data_size); // Size
cmd[9] = data;
cmd[10] = 0xFF; // len = 11 if no n_word_writes
cmd[11] = 0xFF;
@ -2716,13 +2728,6 @@ static int jtag3_write_byte_tpi(const PROGRAMMER *pgm, const AVRPART *p, const A
cmd[15] = 0xFF;
cmd[16] = 0xFF; // len = 17 if n_word_writes == 4
if (mem->n_word_writes != 0) {
if (mem->n_word_writes == 2)
len = 13;
else if (mem->n_word_writes == 4)
len = 17;
}
if ((status = jtag3_command_tpi(pgm, cmd, len, &resp, "write byte")) < 0)
return -1;
free(resp);