Hi everyone. I have what I hope is a quick question, hopefully that can be an interesting question. When it comes to using WSPR mode on the U3S kit, with added GPS and the 6-band relay kit, is it poss

#wspr #firmware #u3s

Thanks Jonathan, this really helped me to get my QCX running again with the latest FW. It is worth noting to others that you need to use this method to reprogram an existing QRPLabs chip to make it wo

#firmware #qcx

Hello all, with firmware 1.05 , after a few minutes in QSO , my QCX returns from TX to RX with a slightly lower RX frequency. (around 100Hz). This happens all the time. First i thought my QSO partner

#qcx #firmware

Bernie, the ATMEGA1284p is a direct swap for the 644. it's 128KB flash and 16KB SRAM with two UART serial ports. -Justin N2TOH

#qsx #firmware

Compare the 644 with the STM32F103 in terms of clock speed and memory resources, plus it's programmable within the Arduino IDE. The costs are similar, about $5. Plus, the QSX will use an STM32F4 serie

#qsx #firmware

Can't the pin arrangement / number of pins issue be overcome by using a socket that fits the new DIP + a socket same as we have, and jumping the two sockets as necessary? We have more room to work and

#qsx #firmware

There is a 28 pin version of the 4808 in an SSOP package. But I had a look -- the pin arrangement is almost completely different from the pin arrangement of the 328. It would not be possible to use a

#qsx #firmware

It would be, but it doesn't look like the 4800's will fill the bill. The 4809 won't be pin compatible as it has 48 pins. The 4808 has 32 pin and I cannot find anything that says it will be compatible

#qsx #firmware

Good points. It would be nice to have a pin compatible part with more flash memory.

#qsx #firmware

The ATMega644 has been updated to the ATMega644A. The newer version is a bit less expensive ($4.25 for one vs $5.26) but still a lot more costly than an ATMega328P ($2.08). All pricing directly from M

#qsx #firmware

Only one big issue with it. Your choice is the 40 pin DIP (BIG!). Or the 44pin TQFP (or similar SMT). It is bigger flash and also 8 years old (possible EOL) plus anything but drop in for package. But

#qsx #firmware

Hans: Did you look into the ATMEGA644-20PU ? It has 64K of flash space but quite a bit more $1.80 versus $5.80. Looks code compatible

#qsx #firmware

Hans: I sent a msg to Group Owner. Hope that works. My email is ve3fwf@.... 🙏i

#cat #firmware #qcx

Hi Bernie The problem is, there is not much code space in the QCX firmware left to add anything. T1.04 did have garbled characters in the reply when the S-meter was enabled, and all these issues have

#cat #firmware #qcx

Rather than go fast try going slower and see if it improves. 4800 baud. Allison ------------------------------- Please reply on list so we can share. No private email, it goes to a bit bucket due addr

#cat #firmware #qcx

Hans: It would really nice if the QCX had a mode to display incoming CAT command characters on the display. I can not get the QCX decode any character at 38,400 bps. I just get a ‘?;’ using T1.05 when

#cat #firmware #qcx

Thanks very much. Worked perfectly without a hitch. 73, Kirk KD0J Salt Lake City, UT

#firmware #qcx

Well done Jonathan! Would you pdf this and post to Files? I know many could use the guidance.

#firmware #qcx

Ron: Thank you regarding the idling logic level Typing any character results in a ?: response. I am going to try another power supply. Maybe having the extra diode and 2 resistors off board could be a

#firmware #problem #cat

Serial lines idle high is correct. Try typing a valid command ( upper case ) FA; with the semicolon at the end.

#firmware #problem #cat