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Re: ATU-10: programming the PIC16F1454?
Tony, connections to the ATU-10 PCB were 1 to 1, 2 to 2, 3 to 3, 4 to 4 and 5 to 5. There's a 6 on the PICkit units but it isn't used here. Pin 1 on the ATU-10 PCB is marked with a 1 and is also a square pad so just keep all five connections in line between PICkit and PCB.
In MPLAB you can select family type as midrange, but on mine I didn't need to, just select the 1454 from the other dropdown - if it's not there then yes, select midrange family which should make it appear. If you've set power in the Advanced menu for 3V3, plus the other selectable option is set to the one that mentions 'recommended' (mine was defaulted to the other option), you should be good to go. That's assuming any previous attempts at programming the PIC whilst it was set at 5V haven't damaged the 1454... Robbie M1ROK |
Re: ATU-10: programming the PIC16F1454?
Dear Robbie,
I'm about to add a wire from the programmer's pad #2 to VDD pin of the PIC16F1454 chip, may be - temporarily - removing the LDO stab (to avoid possible damage by reverse voltage). I thought the programming fails because of undervoltage (3,3 vs 5,0 volts power). Am I wrong? Warm regards, Tony |
ATU-10: programming the PIC16F1454?
Hello!
My PICkit-2 has just arrived, neither the nor the recognise this clone. Only the (taken from ) handles the programmer and detects the PIC16F1454 chip (ID 3020). All I could do so far - is only to erase the initial (the "XPRESS" that came with PIC16F1454 from the DM164142 board) firmware. It tries to program but fails to verify the programmed contents. Could that be because the chip is powered with 3,3 Volts (from ATU-10) rather that with 5 Volts from the PICkit 2? Thank you in advance. Warm regards, Tony |
Re: ATU100 Randomly changing mode
#atu-100
This is known problem of this tuner. You have to add decoupling caps and ferrite beads to the buttons wires
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Re: Bypass for ATU-100 with only one button?
Joe - KF7MIX
开云体育Thank you both for this additional info. Mine does have yellow relays. I'll cautiously test running TX through it when powered off, and see how the radio responds (I'm using an antenna that is resonant on 40m in my configuration, so I'll test there.)73, Joe KF7MIX On 5/24/22 19:38, VR2XLQ wrote:
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Re: Bypass for ATU-100 with only one button?
Yes, if the relay is non-latched type (usually yellow in colour), it will be reset to off stage when no power is applied. Mine version is ATU-10, it uses latched type (white in colour). It keeps in the previous position when power off. The adv is it uses less power and keep the status, the trade-off is the cost of the relay. Not sure if there is any latched ATU-100 model on the market or you can change it to latched type relay yourself for a trial. 73 de VR2XLQ 在 2022年5月25日週三 上午6:06,Colin Kaminski <colinskaminski@...> 寫道:
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Re: Bypass for ATU-100 with only one button?
The ATU-100 has non-latching relays. It should reset to a pass through configuration when off but I haven’t tested mine.? The bypass switch is momentary contact. The display shows when you are in tuning mode or bypass mode.? Colin K6JTH? On Tue, May 24, 2022 at 11:38 AM Joe - KF7MIX <joe@...> wrote:
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Re: Bypass for ATU-100 with only one button?
Joe - KF7MIX
开云体育I readily admit that I'm very much an amateur when it comes to schematics, so forgive me one more question:I notice that if I listen to a band with the ATU-100 in-line but powered off, the RX seems to be just as good as if I connect my antenna directly to the radio. Why is this? Is there danger in transmitting if the ATU-100 is powered off? Thanks for any details you can provide, 73, Joe KF7MIX On 5/23/22 20:09, Joe - KF7MIX wrote:
Excellent, thank you! I'll get in there and see if I can find that pad. In the schematic, is that a toggle switch? I can't find the schematic symbol online... is it saying that I'd switch that pad to ground to enable bypass (versus a momentary pushbutton)? |
Re: Bypass for ATU-100 with only one button?
Joe - KF7MIX
开云体育Excellent, thank you! I'll get in there and see if I can find that pad. In the schematic, is that a toggle switch? I can't find the schematic symbol online... is it saying that I'd switch that pad to ground to enable bypass (versus a momentary pushbutton)?Again, thanks, 73, Joe KF7MIX On 5/23/22 18:20, Colin Kaminski wrote:
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Re: Bypass for ATU-100 with only one button?
Hi Joe, I have the button but when I was making it I just soldered a wire to the pad marked RB2. It is close to the processor chip on the side of the board close to the controls. I am pretty sure I just ground it with the switch. Here is the schematic. Colin? K6JTH |
Bypass for ATU-100 with only one button?
Joe - KF7MIX
Greetings all. I have a question, about an ATU-100 (pre-built Chinese version... I had to solder on new SO-239s, the ones it came with were horrible):
This version of the hardware only has one button connected, which is labeled "TUNE". It works for the TUNE and RESET functions, with long and short press. I'm testing it on both a G90 and an FTDX10, both of which have internal tuners (the G90's internal tuner seems to work quite well, but the FTDX10's internal tuner won't tune up on anything higher than 20m for me.) On the FTDX10, I really only want to use this for rare occasions when I need 17m,15m,12m, or 10m. For 80m/40m/30m/20m, the internal tuner works fine. However, this tuner has no "Bypass" button. Should I disconnect this little tuner when I'm not using it? Or do these types fallback into a bypass mode when powered off? Thanks for any tips or info. 73, Joe KF7MIX |
Re: Relay test on locked atu-100 commercial kit?
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Re: ATU100 with memory
There are 256 bytes of EEPROM. You would need to have a frequency counter and make a lookup table. It’s not much room.? Colin K6JTH? On Mon, May 23, 2022 at 10:58 AM <data.transfer.xx@...> wrote: What would it take to convert the ATU100 to include memory. That way the TX has a better time each time you change bands. |
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