CCS/TDC1000-TDC7200EVM: Using CCS to connect other boards through UART/SPI

Hi,

If you have two separate issues, please crate two posts.
Your post subject does not refer to MSP430F5528 and CC3220.

<<< I want to perform UART/SPI transactions between the MSP430F5528 to SimpleLink cc3220 through GPIO.
Not through GPIO but using UART/SPI pins.

<<< I want to know which communication protocol is better?
These are two different protocols for different needs, no answer for your question.
I recommend you to use UART.

<<< Is that means I may only connect GPIO3,GPIO4 to the simplelink board and the data will transmit through UART, or I should also write some codes to Imitate uart communication？
You need to check pins on MSP430F5528.

<<< or I should also write some codes to Imitate uart communication？
Of course, you need to write some code.

<<< The second question is that the demo codes of tdc1000-tdc7200 don't have codes about how to use GPIO, Can I just include gpio.h and using gpio.c?
You can program GPIOs and other resources at three levels:
- register level,
- driverlib level,
- TI-RTOS drivers.
You should read and study examples to understand how to program GPIOs and other resources.
Start reading: dev.ti.com/.../