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Fix word-based addressing for writing EEPROM

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This commit is contained in:
Khairulmizam Samsudin 2022-06-15 21:11:06 +08:00
parent 2d8882b886
commit 95e99f2ef6
1 changed files with 6 additions and 3 deletions
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9
ArduinoISP/ArduinoISP/ArduinoISP.ino
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@ -488,8 +488,10 @@ byte write_eeprom(int length) {
// here is a word address, so we use here*2
// this writes byte-by-byte,
// page writing may be faster (4 bytes at a time)
int start = _addr*2;
for (int x = 0; x < length; x++) {
spi_transaction(0xC0, 0x00, _addr*2+x, buff[x]);
int addr = start + x;
spi_transaction(0xC0, (addr >> 8) & 0xFF, addr & 0xFF, buff[x]);
delay(45);
}
return STK_OK;
@ -497,8 +499,9 @@ byte write_eeprom(int length) {
void program_page() {
byte result = STK_FAILED;
int length = 256 * getch() + getch();
if (length > 256) {
unsigned int length = 256 * getch();
length += getch();
if (length > param.eepromsize) {
Serial.write(STK_FAILED);
error++;
return;