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Prevent Watchdog reset writing Creality 4.x EEPROM (#20328)

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This commit is contained in:
Jason Smith 2020-11-30 22:25:44 -08:00 committed by Scott Lahteine
parent d34bbee304
commit f929123a7b
1 changed files with 6 additions and 1 deletions
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5
Marlin/src/HAL/STM32F1/eeprom_bl24cxx.cpp
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@ -48,6 +48,8 @@ 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) {
size_t written = 0;
while (size--) {
uint8_t v = *value;
uint8_t * const p = (uint8_t * const)pos;
@ -55,6 +57,9 @@ bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, ui
// so only write bytes that have changed!
if (v != eeprom_read_byte(p)) {
eeprom_write_byte(p, v);
if (++written % 128 == 0)
safe_delay(2); // Avoid triggering watchdog during long EEPROM writes
else
delay(2);
if (eeprom_read_byte(p) != v) {
SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE);