SPI

Can transmit and receive data from and to a device.

Can use chip select/enable line to selectively communicate with multiple peripherals.

Send sample SPI signals through the channels and verify output using Saleae Logic Analyzer.

UART

Can transmit and receive data from and to a device.

Can communicate at different baud rates.

Send sample UART message through each channel and verify output by connecting to a terminal.

I2C

Can transmit and receive data from and to a device.

Saleae Testing

PWM

Configure the PWM signal generation

Basic: Conf

DMA:

GPIO

Can toggle on and off.

Pull each GPIO pin up/down.

Options:

1. Saleae (time consuming for simple GPIO)

2. Connect LED to each gpio pin and drive high → low.

ADC

Varying analog input is converted to a digital binary output.

Connect potentiometer to ADC in channel. Vary voltage input. Output binary values to terminal?

MicroSD

Read/Write data to the SD Card.

Write:

Create text file, write to the text file, plug the SD card into a computer and confirm that the test text file has been created and written to.

Read:

Read from a test file. Check size of input variable to see that the size of the file data and variable match.

OR

Attempt to read known data from a text file. Pass through an assertion or if statement.

On-board LEDs

Can light up.

Run simple blink test code on each on-board LED.