Hi there, I'm using ADuC7060 microconverter for our product development. Software needs to communicate with tmp432 (slave device) and ADuC7060 (master) board through i2c protocol. I developed the code and flashed it. But it seems not working straightway. Initially I thought of checking scl line to confirm that generate 100.3KHz clock signal (please note that 4.7 Kohm - 10Kohm resistance tried as pull up resistor which connects to 3.3V). Still the scl clock was not generated. Please see the firmware configuration settings given below. Am I missing any other configuration settings or need to do any other hardware changes. (I'm using ADuC7060 eval board Rev1 for this purpose).
POWKEY1 = 0x1;
POWCON0 = 0x78; // Set core to max CPU speed of 10.24Mhz
POWKEY2 = 0xF4;
// Configure P0.1 and P0.3 for I2C mode. Configure P1.0 and P1.1 for UART mode.
GP0CON0 = BIT4 + BIT12; // Select SPI/I2C alternative function for P0.1 & P0.3
GP0KEY1 = 0x7; // Write to GP0KEY1
GP0CON1 = BIT1; // Select I2C functionality for P0.1 & P0.3
GP0KEY2 = 0x13; // Write to GP0KEY2
GP1CON = BIT0 + BIT4; // Select UART functionality for P1.0/P1.1
// Enable I2C Master mode, baud rate and interrupt sources
I2CMCON = BIT0 + BIT4 // Enable I2C Master + Enable Rx interrupt
+ BIT5 + BIT7 + BIT8; // Enable Tx interrupt + Enable transmission complete interrupt
I2CDIV = 0x3131; // Select 100.3kHz clock rate
IRQEN = BIT15 + BIT11; // Enable I2C Master and UART interrupts