I was looking at the Atmel AT91R40008 for a new design. However I realised it dosen't support I2C. Does anyone have a recommendation about how to interface a real time clock, and maybe a serial eeprom. Is an I2C bus master a sensible approach, perhaps from Philips? The main objectives are low cost and good availbility. regards, Johnny.
AT91R40008 - I2C question.
Started by ●February 13, 2005
Reply by ●February 13, 20052005-02-13
"Johnny" <john_wr@NOSPAM.hotmail.com.> wrote in message news:47du01dm3hf31ldlpl81hrkddloa7en9el@4ax.com...> I was looking at the Atmel AT91R40008 for a new design. However I > realised it dosen't support I2C. > > Does anyone have a recommendation about how to interface a real time > clock, and maybe a serial eeprom. Is an I2C bus master a sensible > approach, perhaps from Philips?Create your own I2C interface using two I/O port lines. I can give you some source code if you want. Meindert
Reply by ●February 13, 20052005-02-13
Meindert Sprang wrote:> "Johnny" <john_wr@NOSPAM.hotmail.com.> wrote in message > news:47du01dm3hf31ldlpl81hrkddloa7en9el@4ax.com... > >>I was looking at the Atmel AT91R40008 for a new design. However I >>realised it dosen't support I2C. >> >>Does anyone have a recommendation about how to interface a real time >>clock, and maybe a serial eeprom. Is an I2C bus master a sensible >>approach, perhaps from Philips? > > > Create your own I2C interface using two I/O port lines. I can give you some > source code if you want. > > Meindert > >A similar offer here. I'm running a couple of AVR slaves, a temperature sensor and a ferroelectric RAM off I2C on an AT91R40008. Repair the address in sig in the obvious way - sorry for the bot-mess. -- Tauno Voipio tauno voipio (at) iki fi