LSB and MSB

[Lord Grezington]

Hey

I recently picked up a project where I need to use the I2C. However my value required is stored on two separate registers (MSB and LSB). The questions is how can I easily put the MSB and LSB together to get my 16 bit integer?

There must be a simple way of doing this.

Thanks

[medelec35]

Hi Graham,
This post should help

Martin

[Lord Grezington]

Thanks Martin...

[Lord Grezington]

Please note...

Not sure its my ignorance with I2C, but using the MIC2_Recieve_Byte_Transaction macro always doubles the device_ID when used on hardware...

IE = Device_ID = 0x64

Gives

0xB8 when measured on scope

[Benj]

Hello,

The transaction macro assumes you pass in the 7-bit address and the macro then manages the 1-bit read/write flag for you. So if you need to send 0x64 including the read/write bit then you should pass the value 0x32.