RM48L952 I2C question

richard luo

Other Parts Discussed in Thread: HALCOGEN

i read about the datasheet about RM48 I2C, i have a few questions:

1、I2CCNT,i2c Data Count Register, what is it used for?

2、I2CSAR,i2c slave address,in the halcogen example,there is setting about this register, what is it used for,in the example,it doesn't transmit the slave address after the start condition,why

could anybody give me a example about i2c of rm48hdk,thank you!

over 9 years ago

0 Vineeth Thomas Alex over 9 years ago

TI__Intellectual 1855 points

Hi Richard,

Have you tried the examples available in HALCoGen? I have attached them here.

Regards,

Vineeth

5102.example_i2cCommunication.c 3731.example_i2cMaster_TX_RX.c 0451.example_i2cSlave_TX_RX.c 1727.example_i2cInterrupt_Communication.c 3175.example_i2c_pcf8570.c

0 richard luo over 9 years ago in reply to Vineeth Thomas Alex

Prodigy 90 points

hi vineeth,
i have tried example_i2c_pcf8570,example_i2cMaster_TX_RX,in these example, there is no slave address to be transmitted after start condition,and when i debugging , it stopped at the while loop in the function below:
" /* Tranmit DATA_COUNT number of data in Polling mode */
i2cSend(i2cREG1, DATA_COUNT, TX_Data_Master);"
what's more,there is no instruction of how to configure the halcogen,just the code, i use the i2c to connect the hmc5883 magnetic sensor；