I have a question for using the chip rf430frl152h.
I want to read the voltage with an resistor using SD14(ADC) and transfer the conversion data usign nfc communication.
and also, I freely want to control P1.0/1.1/1.2/1.3 to GPIO(HIGH/LOW)
So, I am customizing the code as below based on the "RF430FRL152H_NFC_Only_Project"
P1SEL0 = 0xF0; //keep JTAG
P1SEL1 = 0xF0; //keep JTAG
P1DIR |= 0x0F;
P1OUT = 0x0F; // for making the P1.0/1.1/1.2/1.3 to output HIGH.
By the way, if the part "P1OUT = 0x0F;" is not in the code, nfc communication functions well.
But if the part "P1OUT = 0x0F;" is in the code, nfc communication does't do.
What do I have to do?