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Avoid watchdog reset in all wired EEPROMs (#21436)

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Co-authored-by: Scott Lahteine <github@thinkyhead.com>
This commit is contained in:
Tomas Rimkus
2021-03-26 01:16:45 +01:00
committed by GitHub
parent 704b8cd83c
commit 8a67846872
11 changed files with 43 additions and 54 deletions
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12
Marlin/src/HAL/LPC1768/eeprom_wired.cpp
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@ -42,25 +42,22 @@ bool PersistentStore::access_start() { eeprom_init(); return true; }
bool PersistentStore::access_finish() { return true; }
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
uint16_t written = 0;
while (size--) {
uint8_t v = *value;
// EEPROM has only ~100,000 write cycles,
// so only write bytes that have changed!
uint8_t * const p = (uint8_t * const)pos;
if (v != eeprom_read_byte(p)) {
if (v != eeprom_read_byte(p)) { // EEPROM has only ~100,000 write cycles, so only write bytes that have changed!
eeprom_write_byte(p, v);
if (++written & 0x7F) delay(2); else safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
if (eeprom_read_byte(p) != v) {
SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);
return true;
}
}
crc16(crc, &v, 1);
pos++;
value++;
};
}
return false;
}
@ -68,7 +65,6 @@ bool PersistentStore::read_data(int &pos, uint8_t *value, size_t size, uint16_t
do {
// Read from external EEPROM
const uint8_t c = eeprom_read_byte((uint8_t*)pos);
if (writing) *value = c;
crc16(crc, &c, 1);
pos++;