I am using the Q2687G and a Dev board with firmware version R74 and M2M studio V1.0.2. Now the problem I am having is with I2C and using the example form Wavecom: extstorage_iic.c.
I get no data on my I2C port with a oscilloscope, SDA (GPIO27), SCL (GPIO 26), VCC 2V8 to power the I2C bus and a common ground. Both lines stay high, the start procedure does not even initialize. In my shell target I wrote the command: at+SETMODE=1 then at+WRITE= (1EEE),(1).
I get the trace:
Data write1: 403449740
[M24CXX Driver] compute access (address : 0 (length 16))
M24CXX Driver write
Can anyone please help me with this. If I can only get a result on the I2C port…