| Products > Test Equipment |
| Capture 2 minutes SPI traffic and save it |
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| dietert1:
The scope variant will be limited to 200 MSamples. In order to log 2 minutes that is about 1 MHz sampling, which isn't good enough for most SPI. Often SPI works at clock frequencies of several MHz up to 50 MHz or so. That's why i thought about making a SPI sniffer, that can handle those higher clock rates without producing a vast overhead. It could use some GPIOs as inputs for the nCS signals to tag recorded SPI transactions per bus device. Regards, Dieter |
| TomKatt:
The $149 DSlogic Plus LA can stream 3 channels at 100MHz (or 6 channels at 50MHz) sampling rate over usb to pc for ~160 seconds. The $299 DSLogic U3Pro16 is USB3 and can stream 6 channels at 500MHz. Their DSview software is based on Sigrok Pulseview and has basically the same feature set, including SPI decoding. Depending on the task, I often switch between scope and LA for serial comms work. The LA is great for decoding, but only the scope can identify signal issues (timing, missing or runt pulses, etc). |
| pilot5599:
Thanks everyone! I figured out the way to save the memory in csv format. I also found out how to configure the scope to decode the digital channels. Thanks again! |
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