Also, what advice do you have on buffering the pin. My intention is to use INT4 INT5 as an external trigger (of sorts). Please could you confirm that I am right. In particular something resembling an external trigger, or at least a signal outputted to mark beginning / end of sampling Doctormord I have looked at your photos of the DDS120 board, and as far as I can see INT4 INT5 is not connected anywhere. For me (with a DDS140) the new code route seems better, because there is a second operating mode which does not exist in the basic Hantek and because some of the features I want to add exist neither in the hantek, dds120 or dds140. That decision as to whether it is better to adapt existing code or write new code is always hugely difficult. that way I have a working system I can improve (by adding buffers as previously discussed, as well as extra features). I looked as well and decided that it would be quicker to use Donut6's code to get the data (and control the scope) and then to write a whole new front end in QT. I know what you mean about the openhantek code. Mmark, Well, that you have got good DDS120 codes is good news (so well done to Doctormord as well). meaning of course that firmware additions can now be added very easily. To verify this I have turned the original eeprom dump into an intel hex format file, which can be reloaded to the DDS140 and works.(attached) More importantly (for me), I have also generated annotated assembly code which is bit perfect with the original. This is much faster than loading the eeprom each time, and more importantly gives you a fall back to a working device at the flick of a jumper. For those that are interested "cycfx2prog" (at least in the Ubuntu repository, and source available) will download an Intel hex file into the RAM of the FX2 (if it is started with its eeprom jumper off) and from there will allow the code to execute. so beware I have been working on getting a platform for firmware modification. it is late, and I have not checked but Donut6 and I have been working on DDS140 codes and I am not sure that we have 100% verified that they are the same, similar yes, but. MMark Well done, have just downloaded your code to play with.
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