I2C comunication problem
I2C comunication problem
by Andy2011
Thu May 05, 2011 12:49 pm
Hello
My name is Andreu and i am just starting to use the I2C protocol with the roboard. I want to use it to connect a brushlees motor with a Driver I2C to the roboard.
When i try to use the functions to look for the adress of my driver:
i2c0master_StartN
i2c0master_WriteN
It gives me error number 620.
I search for it in the library and i can not find what this error means(there is an error 620 en the function i2c0master_Reset but i am not using it)
Anyone can help me?
Thank you very much for your time.
My name is Andreu and i am just starting to use the I2C protocol with the roboard. I want to use it to connect a brushlees motor with a Driver I2C to the roboard.
When i try to use the functions to look for the adress of my driver:
i2c0master_StartN
i2c0master_WriteN
It gives me error number 620.
I search for it in the library and i can not find what this error means(there is an error 620 en the function i2c0master_Reset but i am not using it)
Anyone can help me?
Thank you very much for your time.
Re: I2C comunication problem
by roboard
Thu May 05, 2011 1:06 pm
Hi,
you can use roboio_GetErrMsg() to see what error happen. And we suggest that you use the new I2C API of RoBoIO 1.7: i2c_Send(), i2c_Receive(), i2c_SensorRead() to access your I2C devices.
you can use roboio_GetErrMsg() to see what error happen. And we suggest that you use the new I2C API of RoBoIO 1.7: i2c_Send(), i2c_Receive(), i2c_SensorRead() to access your I2C devices.
by Andy2011
Thu May 05, 2011 3:00 pm
Thank you very much,
It says that the I2C is not answering but the function i2c0master_StartN returns a true value in some moment. Seems like it finds the adress of the driver but then it changes, still i think i will studied further to see if i find the answer.
Thank you very much.
It says that the I2C is not answering but the function i2c0master_StartN returns a true value in some moment. Seems like it finds the adress of the driver but then it changes, still i think i will studied further to see if i find the answer.
Thank you very much.