Lpc2000

Replace this function in the example. Not elegant but works with 
60MHz and lower.

// this function Initialises I2C 

void InitialiseI2C(void)
{     

   REG(I2C_I2SCLL) = 0x18;
                                                       
   REG(I2C_I2SCLH) = 0x18;  

   REG(I2C_I2CONCLR) = 0xFF; 

   //  Set pinouts as scl and sda
   REG(PCB_PINSEL0)  = 0x50; 

   REG(I2C_I2CONSET) = 0x40; 
   delay(10);
   REG(I2C_I2CONSET) = 0x64; 

   REG(I2C_I2DAT) = 0x42; 

   REG(I2C_I2CONCLR) = 0x08;
                                                       
   REG(I2C_I2CONCLR) = 0x20;
   
}
--- In lpc2000@yahoogroups.com, "golssa" <golssa@y...> wrote:
> The Ashling code is very crude, it doesen't work when you change 
the 
> CPU clock frequency of the CPU to its max of 60MHz for example. It 
> also does not generate I2C transactions that allow access to 
multiple 
> devices on the I2C bus.
> 
> Since the Arm I2C peripheral is very similar to some Philips 8051 
I2C 
> peripherals hopefully Philips will port their 8051 IIC code 
examples 
> to the Arm at some point.
> 
> Good peripheral software examples are unfortunately almost 
completely 
> lacking for this processor.
> 
> 
> --- In lpc2000@yahoogroups.com, "*****" <billygadget@y...> wrote:
> > Hi Bill,
> > 
> > If you download the 'demo' from www.ashling.com they a have a 
> > quick 'n' dirty example of I2C for thier LPC2106 demo board so 
you 
> > can see how its done
> > 
> > regards Billy
> >  
> > 
> > --- In lpc2000@yahoogroups.com, "Bill Knight" <billk7670@c...> 
> wrote:
> > > Does anyone have some quick-and-dirty code for testing the i2c
> > > interface on the LPC?  I'm doing a hardware checkout of a PCB 
> prior 
> > to
> > > sending it in for second spin.  All I really need is the 
ability 
> to 
> > do
> > > a simple read and write to a single slave device.  Elegant, 
> > interrupt
> > > driven code will follow AFTER the PCB spin.
> > > 
> > > Thanks in advance.
> > > 
> > > -Bill Knight
> > > R O SoftWare