ColdFire/68K Microcontrollers and Processors中的主题 Re: 52259 - I2C Interrupt driven routines?

52259 - I2C Interrupt driven routines?

FridgeFreezer — Mon, 19 Apr 2010 21:05:04 GMT

Does anyone have an interrupt-driven routine for the MCF52259 I2C interface? The freescale example code is polling only which is slightly disappointing given the hardware supports I2C interrupts

Re: 52259 - I2C Interrupt driven routines?

mjbcswitzerland — Mon, 19 Apr 2010 23:00:36 GMT

Attached is an I2C driver reference (for all V2 parts incl. M52259 on 2 interfaces). Only the HW interface is show (register defines should be fairly obvious but not included). The use of the I2C module is described at http://www.utasker.com/docs/uTasker/uTaskerIIC.PDF

As described, the I2C interface can also be simulated to study it operation and verify application's use of it.

This is from the uTasker project, which supports simulation of the Kirin3, includes most drivers, including USB, and Ethernet (with TCP/IP stack and utFAT for SD cards). Eg. of M52259 running:

Regards

Mark

www.uTasker.com

www.utasker.com/kirin3.html

Re: 52259 - I2C Interrupt driven routines?

FridgeFreezer — Tue, 20 Apr 2010 00:34:41 GMT

You're a gentleman and a scholar, Sir! Thanks very much