PicoScope 7 Software
Available on Windows, Mac and Linux
Serial decoded data logger
Serial decoded data logger
Hi,
I am looking for a SPI protocol decoded data logger,
to record some minutes of a SPI communication at 10 Mbps.
I like Picoscope 5000 series, but I don't understand if it can decode and record only the frames on the screen
or it can record a lot of decoded frame values.
Can you help me ?
Regards
I am looking for a SPI protocol decoded data logger,
to record some minutes of a SPI communication at 10 Mbps.
I like Picoscope 5000 series, but I don't understand if it can decode and record only the frames on the screen
or it can record a lot of decoded frame values.
Can you help me ?
Regards
Re: Serial decoded data logger
Hi Fontanesi,
Unfortunately, the Serial Decoder only works on collected buffers of data (so it can't decode continuous streamed data). This means that you would be limited by the available memory in the hardware PicoScope. If we assume that for a 10MBps rate you are sampling the data at 25 times the bit-rate, the sample rate will be 250MS/s. This means that just 1 minute of data would require 250M x 60 = 15G samples of storage. The largest Buffer size in our 5000 Series PicoScopes is 0.5G samples (in 8-bit Mode) giving you just 2 seconds of captured SPI data. Our 6000 Series PicoScopes have larger memory buffers but even they would only give you a maximum of 4GS (which would be just over 15 seconds of captured SPI data).
Do you really need to capture that much data at once? What is the reason for capturing the data?
Regards,
Gerry
Unfortunately, the Serial Decoder only works on collected buffers of data (so it can't decode continuous streamed data). This means that you would be limited by the available memory in the hardware PicoScope. If we assume that for a 10MBps rate you are sampling the data at 25 times the bit-rate, the sample rate will be 250MS/s. This means that just 1 minute of data would require 250M x 60 = 15G samples of storage. The largest Buffer size in our 5000 Series PicoScopes is 0.5G samples (in 8-bit Mode) giving you just 2 seconds of captured SPI data. Our 6000 Series PicoScopes have larger memory buffers but even they would only give you a maximum of 4GS (which would be just over 15 seconds of captured SPI data).
Do you really need to capture that much data at once? What is the reason for capturing the data?
Regards,
Gerry
Gerry
Technical Specialist
Technical Specialist