OWON-VDS1022
OWON-VDS1022 copied to clipboard
florentbr
serial decoder
One major limitation of most or even all Software, available for the VDS1022(i), is the absence of serial bus decoders. Those are a useful feature for checking signal integrity.
Therefore, I want to ask, if it possible to add some, supporting for example UART or I2C?
Hi, This is a feature that I would also be interested in. Wouldn't it be too complicated to implement in java in your project ? Would you have some starting point to help me to program this ? Thanks,
This software was not designed to continuously pulls the samples from this device. It pulls a 5k buffer per channel every 30ms or so and the data is already aligned on the triggered position. So assuming 6 samples per clock period, it would provide at best 833 clock periods of raw data.
I'm not sure it's worth the effort since the starting price for a logic analyser is 10$.
That said, if someone is willing to provide a Java class to decode a buffer, I can try to add a decoder.
Another option would be to implement a plug-in for sigrok. I think it's possible since there's a way to continuously pull the buffer and aggregate the frames. Considering the top speed of USB2, the top signal frequency should be around 1Mhz.
Yes, if it's possible to link your software with a plug-in for sigrok, it's a very good option. Sigrok have a api to send data to the decoder. Any idea to make it ?
Yes, if it's possible to link your software with a plug-in for sigrok, it's a very good option. Sigrok have a api to send data to the decoder. Any idea to make it ?
Someone already started to implement a plugging for sigrok: https://github.com/noopwafel/libsigrok/blob/master/src/hardware/owon-vds-tiny/protocol.c#L275
For the protocol, have a look here: https://github.com/albert-spruyt/pyVds1022