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ZP3 Tester Board:
Model: Arduino 2560 MEGA Pinout
Processor: ATMEGA2560-16AU Datasheet
Other General Documentation
Testing Documentation
Step 1: Visual Inspection of Board
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Channel | Goal/Scope | Proposed Testing Strategy |
|---|---|---|
Main Channels | ||
SPI (Eric) | Can transmit and receive data from and to a device. Can use chip select/enable line to selectively communicate with multiple peripherals. | SPI loopback connection should be able to test that transmit & receive work. (connect MOSI to MISO) and send random values through it, receiving what is sent. The sent value and received value should match if the SPI is working properly. |
UART (ethan) | Can transmit and receive data from and to a device. | Send UART message from testing board and see if target can echo the message back to the EVB. |
I2C (ethan) | Can transmit and receive data from and to a device. | Connect a simple I2C peripheral to the testing board, transmit data to target. Make target do something if data is received, and return data back to test board. todo: find an unimportant i2c sensor/device to steal for bringup testing. |
PWM (Eric) | Can configure the PWM TIMS to generate PWM signals. | Basic: Configure PWM settings. Connect to oscilloscope. Inspect/analyze PWM signal. DMA: Configure PWM settings (using DMA method). Connect to oscilloscope. Inspect/analyze PWM signal. |
GPIO (ethan) | Can toggle on and off. | Connect GPIO pins of testing board to ZP3 board. ZP3 pulls pins high/low and testing board reads pins to see if they are the right state. Possibly do the other way around too. |
ADC (ethan) | 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 (eric) | 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 the test file. Output data to terminal. OR Attempt to read known data from a text file. Pass through an assertion or if statement. |
On-board LEDs (eric) | Can light up. | Run simple blink test code on each on-board LED. |
MISC | ||
GPIO Interlock Pins:
| GPIO interlock, should be read high (3V3) to ensure interface board is properly connected. | Read the pins. |
uSD_Detect Pin: PF11 | Pin low when SD card is inserted and high when SD card slot is vacant ❗ This functionality was not confirmed and should be checked. | Read pin (should be low when SD card is inserted and high when SD card is empty) |
PWR_SENSE Pin: PA4 (ADC2_IN9) | Measures the voltage available to the system after power filter Calculated using | DMM |
VBAT_B_SENSE Pin: PC2 (ADC2_IN3) | Measures the voltage of battery B Calculated using:
| DMM |
VBAT_A_SENSE Pin: PB1 (ADC2_IN16) | Measures the voltage of battery A Calculated using:
| DMM |
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