LE910Cx AT Commands Reference Guide
80502ST10950A Rev. 14 Page 1142 of 1904 2022-03-04
3.15.20. AT#I2CCF - Combined Format for I2C Writing and Reading
This command is used to write and read data to/from an I2C device using the I2C
Combined Format. The module acts as an I2C master.
AT#I2CCF=<sdaPIn>,<sclPin>,<deviceId>,<lenwr>,<lenrd>
This command is used to write and read data to/from an I2C device using
the I2C Combined Format. The module as master transmits data to the
slave device and then, reads data from it through two GPIOs
Parameters:
GPIO number for SDA. To know the range
use #I2CCF test command.
GPIO number for SCL. To know the range
use #I2CCF test command.
address of the i2c device (7 bits). The
Least Significant Bit is used for
read/write command, but in this #I2CCF
implementation, it doesn't matter if the
LSB is set to 0 or to 1. Address must be
written in hexadecimal from without 0x.
addressing range extended to 10 bit