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Part Number: 03316
I2C and SPI firmware (FPGA configurations) for this Tap include test generators producing sustained test traffic at 400KHz and 24MHz respectively.
Test I2C signals are generated on D14 (SDA) and D15 (SCL).
Test SPI signals are generated on D12 (SS), D13 (MISO), D14 (MOSI), and D15 (SCLK).
To receive the test traffic, connect two or four wires as shown on the diagram below:
This number depends on the host PC's performance and its workload. Captured data may be lost if PC's USB channel is unable to receive it in a timely manner. Our tests have shown that an average i7-based desktop PC that is not performing other time-critical tasks easily captures sustained SPI traffic with clock speeds up to 24MHz.
This is the I2C/SPI Tap chapter in the IO Ninja hardware manual.
This is a PDF rendition of the above online HTML manual for downloading and printing.