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Added support for SAMD51 boards #47

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Merged
merged 1 commit into from
Oct 22, 2025
Merged

Added support for SAMD51 boards #47

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9 changes: 8 additions & 1 deletion src/SparkFun_External_EEPROM.h
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,13 @@
#define I2C_BUFFER_LENGTH_RX SERIAL_BUFFER_SIZE // SAMD21 uses RingBuffer.h
#define I2C_BUFFER_LENGTH_TX SERIAL_BUFFER_SIZE

#elif defined(__SAMD51__) || defined(ADAFRUIT_METRO_M4_EXPRESS)

// SAMD51 doesn't have a definition, but it does have this as a template size
// in Wire.h: https://github.com/adafruit/ArduinoCore-samd/blob/master/libraries/Wire/Wire.h#L74
#define I2C_BUFFER_LENGTH_RX 256
#define I2C_BUFFER_LENGTH_TX 256

#elif (defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MKL26Z64__) || defined(__MK64FX512__) || \
defined(__MK66FX1M0__) || defined(__IMXRT1062__)) // 3.0/3.1-3.2/LC/3.5/3.6/4.0

Expand Down Expand Up @@ -128,7 +135,7 @@ class ExternalEEPROM
int write(uint32_t eepromLocation, const uint8_t *dataToWrite, uint16_t blockSize);

bool begin(uint8_t deviceAddress = 0b1010000, TwoWire &wirePort = Wire, uint8_t WP = 255); // By default use the Wire port

bool isConnected(uint8_t i2cAddress = 255);
bool isBusy(uint8_t i2cAddress = 255);
void erase(uint8_t toWrite = 0x00); // Erase the entire memory. Optional: write a given byte to each spot.
Expand Down