topic Re: I2C ISR in S12 / MagniV Microcontrollers

I2C ISR - MC9S12DP512

IgorN — Wed, 16 Jul 2008 20:04:09 GMT

I'm using the I2C-block of MC9S12DP512 in slave mode only.

Did I need to handle the Arbitration Lost in this case?

Added p/n to subject.

Message Edited by NLFSJ on 2008-07-17 07:35 AM

Re: I2C ISR

bigmac — Wed, 16 Jul 2008 22:09:05 GMT

Hello,

The arbitration lost feature would usually only be applicable to a multi-master configuration, so that a master may be changed to slave mode, when another master has access to the IIC bus.

Regards,

Mac

Re: I2C ISR - MC9S12DP512

syf — Fri, 18 Jul 2008 18:50:13 GMT

hello

I am a new fellow in this field .I wondering how to use the IIC.In my project,the MC9S12 is configured as a master only,and communicate with the MAX5418(a DCP).

Message Edited by syf on 2008-07-18 04:51 AM

Re: I2C ISR - MC9S12DP512

J2MEJediMaster — Sat, 19 Jul 2008 02:37:13 GMT

Check out this forum thread for information in I2C programming.

---Tom

Re: I2C ISR - MC9S12DP512

IgorN — Sun, 20 Jul 2008 13:24:00 GMT

Thanks, but one think is not clear for me yet.

Did the "arbitration lost" interrupt can to appear if my unit is constantly slave on I2C bus.

I'm undestend from the DS & AN that this interrupt couse if the unit in master mode.

Since if my unit is constantly slave(never master) did I must to handle this interrupt in the interrupt service routine?

Message Edited by IgorN on 2008-07-20 07:24 AM