Extra functions in python to extend the base I2C functions in micropython. Specifically: Register commands:
- read_register_byte(reg_addr) # read single byte from register
- read_register_word(reg_addr) # read single word from register
- read_register_bytes(reg_addr, length) # read sequence of bytes from register
- read_register_words(reg_addr, length) # read sequence of words from register
- extract_bits(value, bitnum, length) # extract bit field starting at bitnum for length
- write_register_byte(reg_addr, byte) # write single byte to register
- write_register_word(reg_addr, word) # write single word to register
- write_register_bytes(reg_addr, bytes) # write several bytes to register
- write_register_words(reg_addr, words) # write several words to register
- set_register_byte_bit(reg_addr, bitnum, value) # write back the modified register with bitnum set to value (0,1)
- set_register_word_bit(reg_addr, bitnum, value) # "
- set_register_byte_mask(reg_addr, bitnum, length, value) # write back the modified register with value replacing bits.
- set_register_word_mask(reg_addr, bitnum, length, value) # bits to replace with value start at bitnum for length