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Wayne Chen

Need Chip Select Tags for Logic Analyzer for Multi-Byte SPI

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Hi Sirs,

Is it doable to add tags of Chip Select when exporting SPI raw data to CSV file? We are not able to tell the data frame when acquiring multi-byte SPI communications. Raw data of my SPI instructions and CSV log were attached.

Multi-Byte SPI Instructions on MOSI:

Capture_MB.thumb.JPG.438a961de655420714691d0631c77d6b.JPG

Exported CSV with MISO data with single-byte and multi-byte SPI commands:

Capturem.JPG.4f215c640bee5ffba58e64ba755c9a06.JPG

Multi-Byte SPI commands:

Capturem5.thumb.JPG.f80dc44e11039cb8622f437fc51176fb.JPG

Zoom-IN of multi-byte SPI commands:

Capturem4.thumb.JPG.415f678f777d475a50231ae3cc70a8c8.JPG

SIngle-Byte SPI Instructions:

Capture_SB.thumb.JPG.e42427a9a22fef1ac9b81d509a1bc141.JPG

Zoom-IN of single byte I2C commands:

Capturem7.thumb.JPG.1c0f7c2054eac94be7f21995892e87bf.JPG

Thank you and Best regards,

Wayne Chen
06/15/2020
 

BIN1_Broadcast.csv BIN1_Broadcast.xml

Edited by Wayne Chen

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Hi @Wayne Chen

For such message decoding you can use the Protocol tool, SPI, Spy.

If you need under View menu you can increase the Max lines.
If you are interested on data of one channel (mosi or miso) you can use Three-wire Mode.

image.png.f0a1f1a9fd6f49480cec529f31a1171e.png

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