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HAL eeprom cleanup

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This commit is contained in:
Scott Lahteine
2021-03-17 23:55:55 -05:00
parent d4ab2024f5
commit 38b44e3fc9
4 changed files with 37 additions and 41 deletions
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17
Marlin/src/HAL/shared/eeprom_if_i2c.cpp
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@@ -55,12 +55,15 @@ static constexpr uint8_t eeprom_device_address = I2C_ADDRESS(EEPROM_DEVICE_ADDRE
// Public functions
// ------------------------
void eeprom_write_byte(uint8_t *pos, unsigned char value) {
static void _eeprom_begin(uint8_t * const pos) {
const unsigned eeprom_address = (unsigned)pos;
Wire.beginTransmission(eeprom_device_address);
Wire.write(int(eeprom_address >> 8)); // MSB
Wire.write(int(eeprom_address & 0xFF)); // LSB
Wire.write(int(eeprom_address >> 8)); // Address High
Wire.write(int(eeprom_address & 0xFF)); // Address Low
}
void eeprom_write_byte(uint8_t *pos, uint8_t value) {
_eeprom_begin(pos);
Wire.write(value);
Wire.endTransmission();
@@ -70,11 +73,7 @@ void eeprom_write_byte(uint8_t *pos, unsigned char value) {
}
uint8_t eeprom_read_byte(uint8_t *pos) {
const unsigned eeprom_address = (unsigned)pos;
Wire.beginTransmission(eeprom_device_address);
Wire.write(int(eeprom_address >> 8)); // MSB
Wire.write(int(eeprom_address & 0xFF)); // LSB
_eeprom_begin(pos);
Wire.endTransmission();
Wire.requestFrom(eeprom_device_address, (byte)1);
return Wire.available() ? Wire.read() : 0xFF;