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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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2
Marlin/src/HAL/STM32F1/eeprom_if_iic.cpp
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@ -40,7 +40,7 @@ void eeprom_init() { BL24CXX::init(); }
// Public functions
// ------------------------
void eeprom_write_byte(uint8_t *pos, unsigned char value) {
void eeprom_write_byte(uint8_t *pos, uint8_t value) {
const unsigned eeprom_address = (unsigned)pos;
return BL24CXX::writeOneByte(eeprom_address, value);
}

2
Marlin/src/HAL/shared/eeprom_if.h
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@ -25,5 +25,5 @@
// EEPROM
//
void eeprom_init();
void eeprom_write_byte(uint8_t *pos, unsigned char value);
void eeprom_write_byte(uint8_t *pos, uint8_t value);
uint8_t eeprom_read_byte(uint8_t *pos);

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;

55
Marlin/src/HAL/shared/eeprom_if_spi.cpp
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@ -43,44 +43,41 @@ void eeprom_init() {}
#define EEPROM_WRITE_DELAY 7
#endif
uint8_t eeprom_read_byte(uint8_t* pos) {
uint8_t v;
uint8_t eeprom_temp[3];
// set read location
// begin transmission from device
eeprom_temp[0] = CMD_READ;
eeprom_temp[1] = ((unsigned)pos>>8) & 0xFF; // addr High
eeprom_temp[2] = (unsigned)pos& 0xFF; // addr Low
WRITE(SPI_EEPROM1_CS, HIGH);
WRITE(SPI_EEPROM1_CS, LOW);
static void _eeprom_begin(uint8_t * const pos, const uint8_t cmd) {
const uint8_t eeprom_temp[3] = {
cmd,
(unsigned(pos) >> 8) & 0xFF, // Address High
unsigned(pos) & 0xFF // Address Low
};
WRITE(SPI_EEPROM1_CS, HIGH); // Usually free already
WRITE(SPI_EEPROM1_CS, LOW); // Activate the Bus
spiSend(SPI_CHAN_EEPROM1, eeprom_temp, 3);
// Leave the Bus in-use
}
uint8_t eeprom_read_byte(uint8_t* pos) {
_eeprom_begin(pos, CMD_READ); // Set read location and begin transmission
const uint8_t v = spiRec(SPI_CHAN_EEPROM1); // After READ a value sits on the Bus
WRITE(SPI_EEPROM1_CS, HIGH); // Done with device
v = spiRec(SPI_CHAN_EEPROM1);
WRITE(SPI_EEPROM1_CS, HIGH);
return v;
}
void eeprom_write_byte(uint8_t *pos, uint8_t value) {
uint8_t eeprom_temp[3];
/*write enable*/
eeprom_temp[0] = CMD_WREN;
const uint8_t eeprom_temp = CMD_WREN;
WRITE(SPI_EEPROM1_CS, LOW);
spiSend(SPI_CHAN_EEPROM1, eeprom_temp, 1);
WRITE(SPI_EEPROM1_CS, HIGH);
delay(1);
spiSend(SPI_CHAN_EEPROM1, &eeprom_temp, 1); // Write Enable
/*write addr*/
eeprom_temp[0] = CMD_WRITE;
eeprom_temp[1] = ((unsigned)pos>>8) & 0xFF; //addr High
eeprom_temp[2] = (unsigned)pos & 0xFF; //addr Low
WRITE(SPI_EEPROM1_CS, LOW);
spiSend(SPI_CHAN_EEPROM1, eeprom_temp, 3);
WRITE(SPI_EEPROM1_CS, HIGH); // Done with the Bus
delay(1); // For a small amount of time
spiSend(SPI_CHAN_EEPROM1, value);
WRITE(SPI_EEPROM1_CS, HIGH);
delay(EEPROM_WRITE_DELAY); // wait for page write to complete
_eeprom_begin(pos, CMD_WRITE); // Set write address and begin transmission
spiSend(SPI_CHAN_EEPROM1, value); // Send the value to be written
WRITE(SPI_EEPROM1_CS, HIGH); // Done with the Bus
delay(EEPROM_WRITE_DELAY); // Give page write time to complete
}
#endif // USE_SHARED_EEPROM