Products > Test Equipment
FeelTech FY6600 60MHz 2-Ch VCO Function Arbitrary Waveform Signal Generator
fremen67:
--- Quote from: DaveR on September 24, 2019, 12:06:37 am ---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
--- End quote ---
Yes the Trig IN counter works as well. I reached up to 104Mhz in the front input and 120 Mhz in the Trig IN input with a sine signal.
For measurement, the main work is done by the FPGA. The FP tells the FPGA what input to use and then checks on a time base when a value is available for reading.
The FP then gets Frequency or Counter depending on mode, gets also +/-WIDE from the FPGA and then do the maths for Period and Duty values.
fremen67:
--- Quote from: soundtec on September 24, 2019, 05:57:57 pm ---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 ?
--- End quote ---
You don't need the Bluepill when you reflash the front panel. And yes the USB connection on the rear of the FY6600 will work when connected to a PC with the PC Software.
--- Quote from: soundtec on September 24, 2019, 05:57:57 pm ---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,
--- End quote ---
I also like the curve at the edge of the boxes but I wanted the UI to be as fast as possible and drawing horizontal and vertical lines goes faster then drawing arcs… I will keep that for the end :)
--- Quote from: soundtec on September 24, 2019, 05:57:57 pm ---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 ?
--- End quote ---
That would be very nice! What versions do you have?
As for flashing the front panel, it is a matter of soldering a 4 pins header to JK1 (just under the 8 wires ribbon) and wiring GND, JTCK and JMS to a ST-Link V2 programmer.
JTCK to SWCLK, JMS to SWDIO and GND … to GND. Keep the 2 ribbons connected as the power supply will come from them.
In short you switch on the FY6600 , launch the STM32-utility, click Target/Program&Verify, select the .hex file and start!
You will find the software for the ST-Link here: https://my.st.com/content/my_st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-utilities/stsw-link009.html
DaveR:
--- Quote from: fremen67 on September 24, 2019, 08:11:36 pm ---
Yes the Trig IN counter works as well. I reached up to 104Mhz in the front input and 120 Mhz in the Trig IN input with a sine signal.
--- End quote ---
I've worked out what the problem is now: the counter is not very sensitive and needs a fairly high input voltage, so if you feed the counter from one of the output channels the voltage will drop off as the frequency is turned up, and soon falls below the counter's threshold level. The display and the Manual both warn about not exceeding 5V at the counter inputs, but what they don't state is that the level shouldn't fall too far below that, either, so the FY6600 effectively can't measure itself above about 30MHz.
It's been a bad day for testing, I'm afraid, as endless "events" stopped me from even getting started. With luck I'll be able to stay clear of distractions tomorrow and get some good time in.
Regards,
Dave
soundtec:
I have a version 3.2 15mhz ,
I have the St-32 programmer and software to hand , I just need to solder in header pins and I can try running it up on the new UI later today .
soundtec:
That flashed fine for me , its up and running on 0.8 ,
PC Software clicked in nicely too ,
Only unexpected thing I found was pressing the encoder button defaulted frequency to 10000hz and no longer changed hz/khz/mhz .
I only gave it a quick visual check over so far ,I'll have another closer look in the afternoon .
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