Question on i2c-library, reading multiple bytes

[Thomas.Pahl@t-online.de]

i2c library help says:
[code]I2C1_Read(0x50, data_, num_bytes, END_MODE_STOP) [/code]
when i read one single byte (num_bytes = 1 and data_ is a byte variable) - no problem.
when i read multiple bytes (num_bytes =8 where are they written to? if data_ is a byte array it does not write to the elements but only to the first.
Is there a location where the library writes to? Is there an autoincrement of what?
thanks

[filip]

Hi,

Yes, there is an autoincrement in the library that handles this, you can put the data into an array, like this :

Code: Select all

char read_data[28];

data_[0] = address;
I2C1_Start();              // issue I2C start signal
I2C1_Write(0x50,data_,1,END_MODE_RESTART);
I2C1_Read(0x50,read_data,number_fo_bytes_to_read,END_MODE_STOP);

Regards,
Filip.

[Thomas.Pahl@t-online.de]

Does not exactly look like basic
But i asked for the principle. That is clear. Will test it.

Thanks again.