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-rw-r--r--fsm/eeprom.c8
-rw-r--r--fsm/eeprom.h8
2 files changed, 12 insertions, 4 deletions
diff --git a/fsm/eeprom.c b/fsm/eeprom.c
index 8f8bd67..436a736 100644
--- a/fsm/eeprom.c
+++ b/fsm/eeprom.c
@@ -14,7 +14,7 @@ uint8_t eeprom[EEPROM_BYTES];
#endif
uint8_t load_eeprom() {
- #if defined(LED_ENABLE_PIN) || defined(LED2_ENABLE_PIN)
+ #ifdef USE_EEP_DELAY
delay_4ms(2); // wait for power to stabilize
#endif
@@ -32,7 +32,7 @@ uint8_t load_eeprom() {
}
void save_eeprom() {
- #if defined(LED_ENABLE_PIN) || defined(LED2_ENABLE_PIN)
+ #ifdef USE_EEP_DELAY
delay_4ms(2); // wait for power to stabilize
#endif
@@ -54,7 +54,7 @@ uint8_t eeprom_wl[EEPROM_WL_BYTES];
uint8_t * eep_wl_prev_offset;
uint8_t load_eeprom_wl() {
- #if defined(LED_ENABLE_PIN) || defined(LED2_ENABLE_PIN)
+ #ifdef USE_EEP_DELAY
delay_4ms(2); // wait for power to stabilize
#endif
@@ -83,7 +83,7 @@ uint8_t load_eeprom_wl() {
}
void save_eeprom_wl() {
- #if defined(LED_ENABLE_PIN) || defined(LED2_ENABLE_PIN)
+ #ifdef USE_EEP_DELAY
delay_4ms(2); // wait for power to stabilize
#endif
diff --git a/fsm/eeprom.h b/fsm/eeprom.h
index 1e10fd2..d5f0363 100644
--- a/fsm/eeprom.h
+++ b/fsm/eeprom.h
@@ -55,3 +55,11 @@
// if this marker isn't found, the eeprom is assumed to be blank
#define EEP_MARKER 0b10100101
+// wait a few ms before eeprom operations, to wait for power to stabilize
+// (otherwise reads or writes can get corrupt data)
+// (not necessary on some hardware,
+// but enabled by default when there's space)
+#if defined(LED_ENABLE_PIN) || defined(LED2_ENABLE_PIN) || (ROM_SIZE > 10000)
+ #define USE_EEP_DELAY
+#endif
+