Shalin
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Hello @attila, Thanks, it is working absolutely fine now. Meanwhile, I need to know the status of development of I3C support in Digilent. I will be requiring to use Digilent for our upcoming I3C based project. I will be performing automation through LabView by using Digilent I3C libraries. Thanks and Regards, Shalin Verma
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Hello @attila According to our specification, we need to set CLK, MOSI and SS as 3.3V. When I lower the IO, it shows no response. My LA which is capturing has been set to 1.2volts digital level. At this level only, I am getting the MISO response of 840mv. Mainly, I will have to set the LA level to 1.2V to capture the MISO waveform. Is it possible to capture this weak MISO signal by using the high-speed LA pins (0-23) and adding a trigger ? Once I fetch the MISO signal using Digilent LA pin, then is there a way to set the rgRX in the VI with the array of data received from the LA pin ? Thanks, Shalin
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Hello @attila Thanks for taking out time and making the effort. The rgRX is still appearing as zero. I probed this response on Scope and it shows that a very weak output MISO response of level 840 mV is appearing (attached screenshot below). Due to a weak output response, the digilent digital discovery DIO pin is interpreting this 840 mV as zero. Is there a way out , that this weak output signal response of 840 mV is interpreted as 1 by the digilent and shows 1 in the rgRX ? Is it possible to capture this weak signal by using the MISO high-speed LA pins (0-23) and adding a trigger ?
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Hello @attila Please check the attached zip file below which contains the VI alongwith supporting libraries. I am not able to achieve the value of rgRX from digilent while I can see the MISO output data (rgRX) on other LA. Please try to run this VI and see if you get any output. Thanks, Shalin SPI read.zip
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Hello @attila I want to bring to your concern regarding a bug in receiver function (rgRX) of labview. When I send 32 bit pattern from Digilent pattern generator and capture 32 bit rgRX receiver pattern response, it comes constantly as all zero's in labview. I captured the response through Saleae LA and I am able to see 32 bit rgRX pattern there. However, the digilent rgRX is unable to capture the 32 bit pattern. Please check the rgRX functionality for 32bit response. I am attaching the screenshot below of 32-bit rgRX response captured through Saleae LA and the Labview VI below for your reference. Thanks, Shalin SPI_read - Annapurna.vi
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Hello @attila Could you please guide me towards the implementation of I3C through Digilent discovery. Our new project will be utilizing I3C. Therefore, we will have to send I3C patterns via Digital discovery and further analyze them. In addition, we will have to vary timing with proper control. Thanks, Shalin
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Hello @attila, The noise was within the Logic analyzer. I have switched to a new LA and the problem is resolved now. Further, I am trying to write a command 0000. I am not able to receive any response against this command in the rgRX. Could you please help, I am attaching the developed VI below. Moreover, is it possible to write the 4 words in a single row rather than writing them individually in a separate row ? I am attaching the screenshot below to understand better. Thanks, Shalin SPI_read_3.vi