Re: PIC16f1938 and changing eeprom
If it's a Chinese kit you'll probably find that they read protected the PIC. The vendor I got my ATU-1000 from told me the factory does that on all of them. There's a thread on here somewhere about someone else having that same issue.
Vince - K8ZW.
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On 02/22/2022 07:10 AM, Jo PG4I wrote: Hi Onno,
I am experimenting with the atu-100 now (100W version) and I made a
backup of the hex file with pk2cmd and a PICKIT2 as follows:
*pk2cmd -PPIC16F1938 -A5 -T -R -J -GFN7DDC.hex
*
I can send you my backup file if you like.
I am currently looking into reading the EEPROM, no luck so far. It
should be something like:
*pk2cmd -PPIC16F1938 -R -J -GE00-3F*
But I get all zero's:
*Read successfully. *
*EEData Memory*
*0000 00 00 00 00 00 00 00 00 *
*0008 00 00 00 00 00 00 00 00 *
*0010 00 00 00 00 00 00 00 00 *
*0018 00 00 00 00 00 00 00 00 *
*0020 00 00 00 00 00 00 00 00 *
*0028 00 00 00 00 00 00 00 00 *
*0030 00 00 00 00 00 00 00 00 *
*0038 00 00 00 00 00 00 00 00 *
*Operation Succeeded*
73 Joop PG4I
--
Michigan VHF Corporation -- nobucks dot net
K8ZW -
|
Strangely enough cause ya cant buy the original atu-100 ive had 2 stop workin for literally no reason but the power shits is 1.5w or less and thats either my 7300 tx power at 10W or even my 705 with 1M coax and txin 5W but the 2nd atu-100 powers uo but the relays dont switch and we need latchung relays for it cause they use about 250ma sittin there keepin ya tune
On Tue, 22 Feb 2022, 2:07 pm Emory Haines, < wm3m73@...> wrote:
Dennis,
I had a similar problem.?
Turned out one of the tiny leads from the binocular core was
not making contact with the board.? I re-heated all 4 tiny
wires, enough to make sure all the coating was burned off.?
Tuner worked fine after that.
Good luck? 73
Emory? WM3M
On 2/21/2022 6:13 PM, Dennis C wrote:
I recently complete a ATU-100 kit, built and re-flashed with the
QRP mod.
When I run in Auto mode, the tuner re-tunes every time I start to
transmit.? This appears to be because when I begin to transmit,
there is a SWR spike, so the tuner thinks it needs to tune, but in
reality the high SWR is transient and the settings already tuned
are just fine.? I can see this happening on the display - testing
in manual mode.? I see the initial SWR be high, then immediately
come down where it should be.
Is there a way to prevent this SWR spike from happening? or
alternatively, have auto mode pause a bit until the SWR reading
settles.
Just as a side note in case it matters, when I transmit without
tuning (high SWR) the power reading is high.? For example, my
uBitx puts out about 15 watts on 80 meters, but before tuning I
have seen a reading has high as 42 watts on the display.? This
comes down to the expected value once tuned. I have noticed
similar behavior on other devices, just not to this degree.
Thanks
--
Dennis
|
Re: PIC16f1938 and changing eeprom
I tried microchip IPE on macOS, but it was really unstable. Switched to Linux (Parrot) and all works fine. Parrot is Debian-based so similar to Ubuntu. I¡¯m using a cloned 3.
@Jo - The zero values are probably because the original burn was read protected - look in the config info. The only way around that is to erase and reprogram (make sure you uncheck the protection flag).?
You might find that you need to play around with the voltage. Initially I had to go down to 2.75v, but seems to work okay on 5v now.?
|
Re: ATU-10: an alternative PCB layout?
To be more specific:?
I picked up the board,? PIC programmer and some chips, starting
to get all the other components.
On 2/22/2022 1:15 PM, Michael Frachel
via groups.io wrote:
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How much have these changes impacted the initial BOM for the?
Glenn's V1.3 ATU10 board?? I'm still scraping together all the
pieces needed to make that one.
I'm still learning how to read and build these things, so
everything here is a challenge.? What are the advantages or
disadvantages?
mike
KO4BCN
On 2/22/2022 9:42 AM, ZAO via
groups.io wrote:
Hello!
I've uploaded to JLCPCB for production (ATU-10_v1-4c2_jlcpcb.lay6
in Sprint Layout format).
- AD8361 as RF detectors
- more lean ground everywhere
- TQFP-44/UQFN-40 pads for the PIC16F18877 chip
As I now have the microC for PIC v7.6 and David's
sources with the AD8361 support (BIG THANKS, N7DDC!)
- I expect build the ATU capable of QRPP. The firmware sources
will be posted on the GitHub.
|
Re: ATU-10: an alternative PCB layout?
How much have these changes impacted the initial BOM for the?
Glenn's V1.3 ATU10 board?? I'm still scraping together all the
pieces needed to make that one.
I'm still learning how to read and build these things, so
everything here is a challenge.? What are the advantages or
disadvantages?
mike
KO4BCN
On 2/22/2022 9:42 AM, ZAO via groups.io
wrote:
toggle quoted message
Show quoted text
Hello!
I've
uploaded to JLCPCB for production (ATU-10_v1-4c2_jlcpcb.lay6
in Sprint Layout format).
- AD8361 as RF detectors
- more lean ground everywhere
- TQFP-44/UQFN-40 pads for the PIC16F18877 chip
As I now have the microC for PIC v7.6 and David's
sources with the AD8361 support (BIG THANKS, N7DDC!)
- I expect build the ATU capable of QRPP. The firmware sources
will be posted on the GitHub.
|
Re: ATU-10: an alternative PCB layout?
Hello! I've uploaded to JLCPCB for production ( ATU-10_v1-4c2_jlcpcb.lay6 in Sprint Layout format).
- AD8361 as RF detectors
- more lean ground everywhere
- TQFP-44/UQFN-40 pads for the PIC16F18877 chip
As I now have the microC for PIC v7.6 and David's sources with the AD8361 support ( BIG THANKS, N7DDC!) - I expect build the ATU capable of QRPP. The firmware sources will be posted on the GitHub.
|
Re: PIC16f1938 and changing eeprom
Hi Onno,
I am experimenting with the atu-100 now (100W version) and I made a backup of the hex file with pk2cmd and a PICKIT2 as follows:
pk2cmd -PPIC16F1938 -A5 -T -R -J -GFN7DDC.hex
I can send you my backup file if you like.
I am currently looking into reading the EEPROM, no luck so far. It should be something like:
pk2cmd -PPIC16F1938 -R -J -GE00-3F
But I get all zero's:
Read successfully.?????????? ?
EEData Memory
0000 00? 00? 00? 00? 00? 00? 00? 00 ?
0008 00? 00? 00? 00? 00? 00? 00? 00 ?
0010 00? 00? 00? 00? 00? 00? 00? 00 ?
0018 00? 00? 00? 00? 00? 00? 00? 00 ?
0020 00? 00? 00? 00? 00? 00? 00? 00 ?
0028 00? 00? 00? 00? 00? 00? 00? 00 ?
0030 00? 00? 00? 00? 00? 00? 00? 00 ?
0038 00? 00? 00? 00? 00? 00? 00? 00 ?
Operation Succeeded
73 Joop PG4I
|
Dennis,
I had a similar problem.?
Turned out one of the tiny leads from the binocular core was
not making contact with the board.? I re-heated all 4 tiny
wires, enough to make sure all the coating was burned off.?
Tuner worked fine after that.
Good luck? 73
Emory? WM3M
On 2/21/2022 6:13 PM, Dennis C wrote:
toggle quoted message
Show quoted text
I recently complete a ATU-100 kit, built and re-flashed with the
QRP mod.
When I run in Auto mode, the tuner re-tunes every time I start to
transmit.? This appears to be because when I begin to transmit,
there is a SWR spike, so the tuner thinks it needs to tune, but in
reality the high SWR is transient and the settings already tuned
are just fine.? I can see this happening on the display - testing
in manual mode.? I see the initial SWR be high, then immediately
come down where it should be.
Is there a way to prevent this SWR spike from happening? or
alternatively, have auto mode pause a bit until the SWR reading
settles.
Just as a side note in case it matters, when I transmit without
tuning (high SWR) the power reading is high.? For example, my
uBitx puts out about 15 watts on 80 meters, but before tuning I
have seen a reading has high as 42 watts on the display.? This
comes down to the expected value once tuned. I have noticed
similar behavior on other devices, just not to this degree.
Thanks
--
Dennis
|
Re: ATU-100 Build options
Yes there is........
see
see 'default settings'
glenn
On 22/02/2022 10:07 am, Chopper wrote:
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Show quoted text
Is it possible to build the ATU-100 kit to use for QRP ( 5 watts)?
? If is is there documentation.?
|
I recently complete a ATU-100 kit, built and re-flashed with the QRP mod.
When I run in Auto mode, the tuner re-tunes every time I start to transmit.? This appears to be because when I begin to transmit, there is a SWR spike, so the tuner thinks it needs to tune, but in reality the high SWR is transient and the settings already tuned are just fine.? I can see this happening on the display - testing in manual mode.? I see the initial SWR be high, then immediately come down where it should be.
Is there a way to prevent this SWR spike from happening? or alternatively, have auto mode pause a bit until the SWR reading settles.
Just as a side note in case it matters, when I transmit without tuning (high SWR) the power reading is high.? For example, my uBitx puts out about 15 watts on 80 meters, but before tuning I have seen a reading has high as 42 watts on the display.? This comes down to the expected value once tuned. I have noticed similar behavior on other devices, just not to this degree.
Thanks
--
Dennis
|
Is it possible to build the ATU-100 kit to use for QRP ( 5 watts)? ? If is is there documentation.?
|
Thank you really very much for the detailled information. Now I have an idea where to dig further. Especially the hints regarding how to test the display is helpful although I will check whether the connecting cable is providing a good contact etc.? Vy 73 de?
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Am 21.02.2022 um 16:14 schrieb N0YWB <n0ywb1@...>:
? The 0.96 inch OLED display with SSD1306 controller?is usually accessed at i2c address 3C.? Some are at address 78.
Some modules have address select pads on the back.?Refer to the SSD1306 datasheet: ? ?
?
If you have a spare ESP32, ESP8266, or other Arduino supported board lying around, compile an i2c scan tool (it only takes a few minutes)?
??
The Arduino software build uses the Wire library, available for all Arduino supported boards.?
??
?
On a Raspberry Pi?
?sudo apt-get install python-smbus i2c-tools?
?sudo i2cdetect -y 1?
?
The i2cscan utility tests communicating to all i2c addresses and reports results on the serial debug terminal.?
To actually display something, you need more code using additional libraries:?
???
???
??
??
?
|
Re: where to find software that works for the pickit 3 programmer?
If you¡¯re changing 05, do the coil change as well (physical and code). Also do the max power change.?
I¡¯ve just been through this yesterday and today. ?It¡¯ll be pretty unstable if you leave the turns and the ratio at 10, but I can confirm that now, with 5 turns, it tunes from my mcHF on about 2W ?
You have to accept that if you are making this work for QRP then it¡¯s a stretch to make it work for 100 watts too. If you change the coil and try to run it on full power you¡¯ll release the magic smoke.?
Alternatively build it for 100 W and also build an ATU10 for QRP. I¡¯m thinking about getting some PCBs made in Chinaland so may have some spares.?
Leo M0NNQ
|
tks! just the info i needed... looks like i am getting a new little QRP tuner!
|
The 0.96 inch OLED display with SSD1306 controller?is usually accessed at i2c address 3C.? Some are at address 78.
Some modules have address select pads on the back.?Refer to the SSD1306 datasheet: ? ?
?
If you have a spare ESP32, ESP8266, or other Arduino supported board lying around, compile an i2c scan tool (it only takes a few minutes)?
??
The Arduino software build uses the Wire library, available for all Arduino supported boards.?
??
?
On a Raspberry Pi?
?sudo apt-get install python-smbus i2c-tools?
?sudo i2cdetect -y 1?
?
The i2cscan utility tests communicating to all i2c addresses and reports results on the serial debug terminal.?
To actually display something, you need more code using additional libraries:?
???
???
??
??
?
|
The charge current (Max.) on the TP4056 is set by external resistor, 2k6 (2600ohms) in Davids ATU-10.?? The data sheet gives a formula to calculate the charge current, from memory that's about 350-400mA.??? The actual current will taper off until full charge is reached.
vk3pe
|
the average shitty USB charger will do 500ma as is so unless its been limited ya would say 2-3 hours
On Mon, 21 Feb 2022 at 08:41, kg4zqz < kg4zqz@...> wrote: first, tks to David for this great tuner and gift to the ham community!
my simple question: "How long does it usually take to charge batteries in the ATU-10?"
obviously, that would depend on the capacity 800mA vs 400mA, etc.
tia for any 'cocktail napkin' estimate... i have read the github docs, but do not have experience with the usb charging chip and its capabilities...
|
first, tks to David for this great tuner and gift to the ham community!
my simple question: "How long does it usually take to charge batteries in the ATU-10?"
obviously, that would depend on the capacity 800mA vs 400mA, etc.
tia for any 'cocktail napkin' estimate... i have read the github docs, but do not have experience with the usb charging chip and its capabilities...
|
Re: Programming & compiling from github source code
I believe you guys are homing in on a really great ATU. Going away from the BAT41 diodes to AD8361s or AD8307s is a good step to eliminate diode non-linearity problems, especially at the low end. Forward biasing the diodes also helps the low end at low power. The next step is to improve the ADC range to more than 10 bits (10bits won't cut it) . The step after that is to provide frequency compensation. The power/SWR will change depending on the Stockton Bridge characteristics (material, etc). You would like the data to be correct all the way from 160m to 6m. Or at least that's my idea and what I've done before on the AQRP mWattmeter back in 2012.
73 Kees K5BCQ
|
Am I correct that the adress of the OLED display is 78 and not 42? Is the adress the same for every OLED display? The display of my (2nd) kit doesn¡®t display anything.?
vy 73 de
Rolf, DL8BAG?
|
Jo PG4I
Rolf Schroeder
N0YWB