## Write to registry on chip

Serial.print("frequency: ");
Serial.println(frequency);

// frequency: 1422114

/* 0x07 */ {REG_FRFMSB, (uint8_t)(frequency >> 16)},
/* 0x08 */ {REG_FRFMID, (uint8_t)(frequency >> 8)},
/* 0x09 */ {REG_FRFLSB, (uint8_t)(frequency)},



## Read from registry on chip

frequency = (
    ((uint32_t)readReg(REG_FRFMSB) << 16) +
    ((uint16_t)readReg(REG_FRFMID) << 8) +
    (uint8_t)readReg(REG_FRFLSB)
)


Serial.print("frequency: ");
Serial.println(frequency);

// frequency: 16777215