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Re: ubitx code version 4.3 for review, testing
Tom and others, I discovered another subtle bug in the catReadEEprom function that was causing latch up in the second transmit sequence of wsjtx. I have fixed it. I had a full QSO just now on the FT8. You can try with the latest files from the repository.? I have used the 1.9.0 release candidate rc 4. This was fixed with support for ubitx, though it doesn't list it in the drop-down menu, you still have to choose FT-817 as the rig. -f? On Wed, May 23, 2018 at 7:51 AM, Ashhar Farhan <farhanbox@...> wrote:
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Re: Raduino issue
Ubitx on 1.061. That's what i figured. Best plan of attack? On Tue, May 22, 2018, 9:03 PM Ashhar Farhan <farhanbox@...> wrote:
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Re: Raduino issue
In tightenting up the encoder, you probably shorted some digital line to the ground. Was this on the bitx40 firmware or the ubitx? - f On Wed, May 23, 2018 at 9:30 AM, Sam Tedesco <stedesco619@...> wrote:
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Re: Coding for JackAl
On Tue, May 22, 2018 at 06:48 pm, Jack Purdum wrote:
Hmmm...perhaps you guessed the primary reason for selecting a relatively expensive processor.my guess requires a second SPI display and rhymes with schmaterfall.? of course with the quality of the display you speced I might build the thing just to watch movies on it. -- |
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Re: Coding for JackAl
I¡¯ve messed with this board a bunch. You can always replace (at your own risk) the existing generated code for what you want. ?If you mess it up, reload the virgin Jackal code. Nothing ?lost.?
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? Dr.?William J. Schmidt - K9HZ ? On May 22, 2018, at 11:22 AM, bobh_us <rwhinric@...> wrote:
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Re: share your BITX success stories
I had to dig up this thread because I just completed an FT8 QSO on 30m to ZL with only 4.67w out.? That's 1745.33mi/w.? I also hit 1508.1mi/w in the other direction a few days ago.? I'm not sharing this to boast.? I'm posting this as a testament to what this gem of a radio can do with a decent antenna.
-- |
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Re: Raduino CAD Files
Jack Purdum
My experience is that the real bottleneck is not flash memory, but almost always the amount of SRAM. Since it is partitioned between the stack and the heap, the compile time statistics on SRAM memory usage are almost useless. I've had programs with compile time SRAM usage at 72% mysteriously die because of a stack crash. 8K of SRAM isn't a lot (e.g., the Teensy 3.6 has 256K of SRAM and I'm using about 15% of it.)? I think the STM32F401 family has at least 64K of SRAM and a significantly faster clock that the Mega. Jack, W8TEE
On Tuesday, May 22, 2018, 10:34:07 PM EDT, ajparent1/KB1GMX <kb1gmx@...> wrote:
Joe The atmega series?Atmel ATmega640/V-1280/V-1281/V-2560/V-2561/V High Endurance Non-volatile Memory Segments
¨C 64K/128K/256KBytes of In-System Self-Programmable Flash
¨C 4Kbytes EEPROM
¨C 8Kbytes Internal SRAM
The Mega 2650 is the atmega2560 256kbyts program, 4K Eeprom, 8Kram IF that isn't enough ther eis the STMF4 series... ;) Allison |
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Re: UBITX filter bandwidth ?
Hello Ralph,
Coincidentally I did the same watt meter measurement last night and found a bandwidth very similar to yours: with my current BFO setting, I had a passband from 2100Hz to just under 500Hz (I used mostly 100Hz steps). I did this because I suddenly saw my power output disappear when clicking on the high audio frequencies of the FT8 waterfall to change my Tx frequency. This is due to the 12Mhz crystal filter passband.? Might have to try reducing the capacitors to ground between the crystals and see if it can be widened without too much ripple. But that is for another day for me. If you find a solution, please let us know. 73, John (VK2ETA) |
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Re: Raduino CAD Files
Joe
The atmega series?Atmel ATmega640/V-1280/V-1281/V-2560/V-2561/V High Endurance Non-volatile Memory Segments
¨C 64K/128K/256KBytes of In-System Self-Programmable Flash
¨C 4Kbytes EEPROM
¨C 8Kbytes Internal SRAM The Mega 2650 is the atmega2560 256kbyts program, 4K Eeprom, 8Kram IF that isn't enough ther eis the STMF4 series... ;) Allison |
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Re: ubitx code version 4.3 for review, testing
Tom, The cat protocol was unstable until Ian fixed an overflow problem. Try with the latest sources on the .? - f On Wed, 23 May 2018, 07:10 Tom Christian, <tmchristian@...> wrote: Ooops!? I totally overlooked the previous: |
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Re: Coding for JackAl
Jack Purdum
Hmmm...perhaps you guessed the primary reason for selecting a relatively expensive processor. Jack, W8TEE
On Tuesday, May 22, 2018, 5:16:10 PM EDT, John <vk2eta@...> wrote:
The Teensy 3.6 has a floating point unit and can do FIR filtering and more at that sample rate with the audio library. So the IIR filters used here, which are at least an order of magnitude more CPU efficient, and should not be an issue for the Teensy 3.6. One very interesting feature that opens up with this combination of CPU and library is the USB audio device emulation that would allow a computer to connect via USB for digital modes without a digital interface. Plus the real possibility of on-board decoding and encoding of digital modes as well as built-in SDR. Mind boggling and a hacker's dream that thing is. 73, John (VK2ETA) |
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Re: "RADUINO" Versions
Kees I am happy to be able to use various boards and firmware for uBITX.? Firmware and boards often appear in this community are missing. Nik (VK4PLN) -?I tried to buy his board but I had to wait for it to be sold out.?It consists of various small boards. popular John(VK2ETA) -?It is a firmware that implements S.Meter, AGC etc with little money (or not need money) Joe VE1BWV - uBITX with TFT LCD,?It is already completed and in use. To play with these various things, I have to order some parts today too :) 2018-05-23 3:24 GMT+09:00 Kees T <windy10605@...>: Things are happening fast and I'm trying to keep it straight in my old head. Is this list complete relative to the various "Raduino" versions available today ? I may have left some off....... Anyone happen to have a matrix of the various options ?? (silly question). |
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Re: ubitx code version 4.3 for review, testing
Ooops!? I totally overlooked the previous:
Sending bugs:
Send me the bug reports directly to my email?farhanbox@.... In the subject line use the word "#ubitx40". Sorry for the spam.... Tom AB7WT |
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Re: Raduino CAD Files
Jack Purdum
The Arduino Mega 2560 has 4K of EEPROM. The Mega 2560 Pro Mini is the smallest footprint I've seen for it. Jack, W8TEE
On Tuesday, May 22, 2018, 7:51:46 PM EDT, W3JDR <joe@...> wrote:
Allen? I AM 70. I like the challenge...keeps me sharp. I've decided I want built-in USB and the fear of RFI problems is a challenge I'm willing to take on. There are numerous RFI sources in the Raduino, from the 16 mHz clock, its harmonics and divided sub-harmonics, the I2C? bus and the SPI bus, plus 3 oscillators in the Si5351 and all their cross-talk intermodulation products.. It's an RFI jungle. At some point this has to be dealt with and running away from it won't eliminate the issue. The Mega uses an ARM that also has no EEPROM if my memory serves, so you need either an extra part or a mechanism to use Flash for dAta storage. I think the latter is workable for this applicstion. Besides, I've seen no Mega boards in a Nano footprint except the Protoneer, which is $15 shipped. In that price range there are better alternatives. The $2.50 Pill is very compelling. Regards Joe |
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Re: Coding for JackAl
That could make sense as a very fun toy.?
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A hackable 0-30 mhz receiver. I'm not convinced it's a good fit as an add-on to the uBitx. Jerry On Tue, May 22, 2018 at 05:07 pm, John wrote:
Would the following make sense then (software mods and Si5351 i2c bus address aside for now): |
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Re: ubitx code version 4.3 for review, testing
I did an initial quick test of CAT with WSJT-X.? Changed frequency fine, but TUNE was not working correctly.? The first TUNE try would key the relay and produce output power, but subsequent tries were non-responsive.? ?Change frequency and repeat test with behavior.? Reload Ian's firmware and all is well.? ?I'll try to do more testing when I can break free (I just got home from work and literally had 10 minutes to test).? I may be missing something basic in my setup and testing.
Tom AB7WT |
K9HZ
Patrick Skerrett
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