[how to log 2 SPIs simultaneaously in the protocol window with Digital Discovery]

Hi

I have 2 SPIs between 2 MCUs (one from MCU1 to MCU2, with CS1/CLK1/MOSI1 lines) and a second SPI from MCU2 to MCU1  CS2/CLK2/MOSI2) and i want to log both SPIs simultaneaously ; is it possible and how to configure that please ?

BR,
Samuel

[pb with Digital Discovery too sensitive to glitchs on CSelect]

I'm trying to log SPI communication between 2 MCUs (2 Arduinos UNO).
The communication is good (UNO2 receive the byte from UNO1) , but the DigitalDiscovery is not able to decode MOSI signals because it seems that there are glitchs on CSelect signal (as shown on the picture bellow)

Is it possible to tune the DDiscovery in order that it is less sensitive to these glitchs (or do i have wrong use of the DDiscovery like bad DIOs?).
  

best regards

Samuel,

glitchs_noise_on CSelect.docx

[logging]

Hi attila!

Thank you very much; iwas not in the protocol window: now it's fixed ! thanks!

 

[logging]

I’m working with Digital Discovery device.
I try to log a SPI bus (its clock is 4 MHz); I tried to log the datas emitted.
As the clock is 4 MHz I’m tuning acquisition rate to 50 Mhz (in order to the device to acquire safely the datas): however it means that with 100M samples I will have only a 2 sec record size:

Is it possible to increase this record size (I would like to have at least 60 seconds)?
I’m perhaps not using the good way.

I want to have logs like this one , obtained after “export”  (but larger size):

#Digilent WaveForms Logic Analyzer SPI MOSI

 

 

#Device Name: DDiscovery

#Serial Number: SN:210321B5651A

#Date Time: 2023-09-21 16:10:37.000.000.000

Time (s),Data

0.03629506,h00

0.03629695,hFE

0.03629895,h01

0.03630096,h00

0.03630297,h3A

0.03630498,h47

0.03630698,h00

0.03630899,h7C

0.04217353,h00

0.04217541,hFE

0.04217742,h10

Logging_SPI_datas_with_ddiscovery.docx