Products > Test Equipment
FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
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DaveR:

--- Quote from: rhb on September 23, 2019, 02:24:54 am ---
 No sense breaking something that works until you know the replacement works.


--- End quote ---

Exactly.  As you seem to be the only one with the luxury of having a spare front panel to play with, Reg, we'll be counting on you for firmware testing.  There are a few more of us to debug the control software and blue pill board, without risk of uncovering a new "3.0" type glitch and ending up with a brick which needs delicate chip replacement surgery :).

Regards,
Dave
DaveR:
Hi fremen67:

I tried to start the software testing today, but there appears to be a problem with the 0.8 blue pill hex file - it loads ok, but when the blue pill board is plugged into a USB port the PC throws up a "Device not recognised - a device ..... has malfunctioned)" message.  I can reload 0.6 and 0.7 hex files on the same board and they'll work fine, but 0.8 causes the error message again.  I tried four different boards and it's the same with each.  It wouldn't have anything to do with 0.8 being 3x the size of 0.7 would it (it does seem to be a very large jump in size compared with previous versions)?

Regards,
Dave

fremen67:

--- Quote from: DaveR on September 23, 2019, 06:39:23 pm ---Hi fremen67:

I tried to start the software testing today, but there appears to be a problem with the 0.8 blue pill hex file - it loads ok, but when the blue pill board is plugged into a USB port the PC throws up a "Device not recognised - a device ..... has malfunctioned)" message.  I can reload 0.6 and 0.7 hex files on the same board and they'll work fine, but 0.8 causes the error message again.  I tried four different boards and it's the same with each.  It wouldn't have anything to do with 0.8 being 3x the size of 0.7 would it (it does seem to be a very large jump in size compared with previous versions)?

Regards,
Dave

--- End quote ---
This is completely normal. The code of the bluepill is exactly the same as the front panel version, the difference is that some I/Os of the front panel can't be used on the bluepill and are remapped for it. But if you connect them, it will handle the LCD, the keyboard and the encoder.
Almost all the I/Os of the bluepill are used now, including PA11 which is USB- signal, now used as an output to switch on the LCD.
For the test, you don't need to connect anything on the USB port of the bluepill.
Just connect the bluepill the way it was with v0.7 and it should work like this. Did you try?

Edit: just a picture to show what you could do with the current bluepill  firmware...
DaveR:

--- Quote from: fremen67 on September 23, 2019, 09:06:56 pm ---Just connect the bluepill the way it was with v0.7 and it should work like this. Did you try?

--- End quote ---

Yes, I did - I even reprogrammed the blue pill without disconnecting it from the FY6600 to make sure everything was the same for each BP level, but the v0.8 control software would do little or nothing.  However, I've now tried it again after rebooting the PC, and without the myriad of SDR radio programs and other stuff running in the background, and everything is working properly this time - so it's all systems go! (And now I know why it was throwing up the error, as the BP is effectively no longer a USB device with the latest firmware loaded.)

I've just given the Counter function a workout, and it's fine with AC coupling - within the limits of my FY6600, anyway.  The manual claims that the counter can measure up to 100MHz, but I remember from when I last tried it several months ago that mine wouldn't go anywhere near that.  Having tried it just now, it will only go up to 38.1MHz with a sine wave input, and 42.5MHz with a square wave, so I don't know whether this is just a problem with my unit or with the counter in general.  (That's actually a lot better than when running with FP control, when it falls over above 29.7MHz with any input.)  Has DC coupling via the Trig IN port been enabled yet?  I can't get any response after I select it, although it's hard to say whether it works under FP control anyway - it never shows a frequency, and the values it does show for Cycle, Width and Duty only rarely coincide with actual values.

A lot more to be done tomorrow, starting with the Calibration routines ....

Regards,
Dave
soundtec:
Tremendous work Fremen,

In the case where the front panel is reprogrammed with your software will the internal usb provide the software functionality also , or is the bluepill controller still required ?

The new simplified gui looks clearer and  easier to read ,as well as giving  controls well beyond the standard FP setup ,
From purely a visual perspective I felt a little more curve at the edges of the boxes and soft key tabs on the screen might be more pleasing on the eye , thats all only icing on the cake in the end,

I have two working units , so I'm strongly weighing the options and considering rebranding my modded  fy6600 'Frementec'.
Does anyone know where the idiots guide to the programmer hook up is located at ?





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