Telit Wireless Solutions LE910C series - AT#I2 CCF - Combined Format for I2 C Writing and Reading

LE910Cx AT Commands Reference Guide
80502ST10950A Rev. 14 Page 1142 of 1904 2022-03-04
Not Subject to NDA
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.
SIM Presence
Setting saved
Can be aborted
MAX timeout
SELINT
Not required
Auto
No
-
2
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:
Name
Type
Default
Description
<sdaPIn>
integer
-
GPIO number for SDA. To know the range
use #I2CCF test command.
<sclPin>
integer
-
GPIO number for SCL. To know the range
use #I2CCF test command.
<deviceId>
hex
N/A
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.
Value:
0÷3FF
:
addressing range extended to 10 bit
<lenwr>
integer
N/A
number of data to write.
Value:
0÷254
:
number of data to write.
<lenrd>
integer
N/A
number of data to read.