Hello,
I am trying to configure pin 7 of the MSP430F2274 micro-controller as the SMCLK output pin, which I can then use to measure the SMCLK frequency.
After referring to the Port P2 Pin Schematic: P2.1, Input/Output With Schmitt Trigger and Table 25. Port P2 (P2.1) Pin Functions on page 62 of the MSP430F22x2 & MSP430F22x4 - SLAS504G – JULY 2006 – REVISED AUGUST 2012 document, I came up with following function that would make pin 7 of my MSP430F2274 device output the SMCLK:
void smclk_init(void)
{
P2DIR |= SMCLK_MASK; // P2.1 - output at TP121
P2SEL |= SMCLK_MASK; // P2.1 - select SMCLK
P2REN &= ~SMCLK_MASK; // P2.1 - selest SMCLK
ADC10AE0 &= ~SMCLK_MASK; // Disable ADC
}
Where SMCLK_MASK is 0x01
However, when I compile and run the code, I cannot see any clock being output on pin 7 of the device, while the other functions work correctly, e.g. LED blinking.
What am I missing here?
Cheers,
Budimir
