Posted on June 29, 2006 at 09:29hi,
i'm a student currently working with STR712FR2. I'm trying to use I2C and have basically wrote a simple code to check the signal out from it. it compiles well and didnt gave any error but the problem is i couldnt detect any signal using oscilloscope. anybody can help me with this?
heres my code
#include ''71x_lib.h''
#include ''i2c.h''
int main (void)
{
u32 MCLK_Freq;
#ifdef DEBUG
debug();
#endif
/* Configure the SDA and the SCL lines to alternate functions Open Drain (MASTERS) */
GPIO_Config(GPIO1,0x2000,GPIO_AF_OD);
GPIO_Config(GPIO1,0x4000,GPIO_AF_OD);
/* Initialize the I2C0 peripheral */
I2C_Init (I2C0);
/* Configure frequency bits */
I2C_FCLKConfig (I2C0);
/* Enable I2C0 peripheral */
I2C_OnOffConfig (I2C0, ENABLE);
/*compute internal RCCU value*/
MCLK_Freq = RCCU_FrequencyValue(RCCU_MCLK);
/* Configure I2C0 clock speed */
I2C_SpeedConfig (I2C0, 100000);
/* Enable Acknowledge */
I2C_AcknowledgeConfig (I2C0, ENABLE);
/* Generate the START condition */
I2C_STARTGenerate (I2C0, ENABLE);
/* Wait until SB bit is set */
while (I2C_FlagStatus (I2C0, DIRECT, I2C_SB)==RESET);
while(1){
I2C_ByteSend (I2C0,0X03);
}
thanx
