Dosbox Direct Serial Rx Delay
But in DOSBox it does not communicate. I see both serial ports open on startup: Serial1: Opening COM1 Serial2: Opening COM2. I use the software with COM 1 (physical one) and it works fine. I then switch the software over to COM 2 and start getting this: Serial2: Errors: Framing 0, Parity 0, Overrun RX:6. You can set your application to print to an ascii file, or you can let Printfil automatically capture one or more serial or parallel port (even from LPT1: to LPT9: and from COM1: to COM9: simultaneously), and redirect your DOS print jobs to any Windows printer, including USB, GDI, IP network printers, fax printers and PDF writers, even if a printer is physically connected to the captured port. 2010-3-24 Sam Palermo Analog & Mixed-Signal Center Texas A&M University ECEN689: Special Topics in High-Speed Links Circuits and Systems Spring 2010 Lecture 19: RX DFE Equalization.
Cables Required to Program the Motorola RadiusThe cables and connectors required to program your Motorola Radius will vary from computer to computer. If you have a newer model computer, chances are that you do not have a serial port. If you have an older model computer, you are probably in luck.To see if you have a serial port on your computer, look at the connections for a port labeled “Serial”. It will have nine pins and look like the picture.If you do have a serial port, you do not need to purchase the USB Serial Port Adapter listed below. Recommended Cables & ConnectorsListed below are the recommended programming cables and connectors required to program the Motorola Radius. I have received a few conformations from others that they do work as expected.
RIB for Motorola –. Power Supply for RIB –. Radio Programming Cable –. USB to Serial Port Adapter – (only needed if you don’t have a serial port connection on your computer)Other Cables & ConnectorsThere are other programming cables that may or may not work to program your Motorola Radius.
It is best to use the recommended cables and connectors listed above.WARNING! – Some cheap USB serial port adapters do not work to program your Motorola Radius. I had to trash two different USB serial port adapters before I found one that worked for me. Getting Setup to Program the Motorola RadiusThe first thing you need to do is get your hardware setup. Plug in your USB Serial Port Adapter to your computer. Attach the Motorola RIB to the USB Serial Port Adapter. Finally, attach the programming cable to the RIB and your transceiver.Note: If you have an existing serial port on your computer, just plug your Motorola RIB to the computer and the Motorola programming cable to the RIB and your transceiver.We now need to make sure that the USB Serial Port Adapter has been assigned port COM1 or COM2.
This can be accomplished by checking the Device Manager. The Device Manager can be accessed by bringing up the Start Menu and typing “Device Manager” in the Search Programs and Files area. Starting Motorola’s Radio Service SoftwareNow it’s time to see if we did so far is correct. Let’s start DOSBox and see what happens. You should see a welcome screen that tells you to push any button, and then the following screen below.If you see this screen above, congratulate yourself!
You have successfully configured DOSBox to run Motorola’s Radio Service Software.Now comes the part that just about everyone has trouble with. Getting your Motorola Radius to communicate with your computer. Cheap programming cables, and too fast of a CPU speed (on your computer/DOSBox) are the main cause of this problem.
Dosbox Direct Serial Rx Delay Reviews
We already discussed what cables worked for me. Now let’s go over how to slow down the CPU speed. Slowing Down the CPU Speed in DOSBoxWhile DOSBox is running, hold down the “Ctrl” key and press “F11” until the CPU Speed (displayed in the title bar) reaches somewhere around 191 cycles. If you went too far, hold down the “Ctrl” key and press “F12” to raise the speed back up. I was able to successfully program with a CPU Speed of up to 400 cycles.Configuring and Testing the Motorola RSSNow it’s time to configure the RSS, and test the connection between your computer and your Motorola Radius. If it’s the first time saving that file then that will pop up, since there’s no such file created yet.
Go ahead and save it anyway and that will fix the problem.Another reason this can happen is the drive letter not being correct for how the drive was mounted. For example, if I mount my D: drive as the C: in DOSbox, I have to make sure the path I set corresponds to that and set the path as going to drive C:, not drive D: (because DOSbox will change it to the correct drive when it comes through). First, my compliments on a great resource you’ve created here. Your work on it is much appreciated. Second, like many others here I’m also encountering the “Error #7 INVALID OP CODE” problem. The PC I’m using is one I built myself, specifically for amateur radio, so it does have a native serial port.
The cable is from KJ6ZWL, as is the RSS software. Under Win 7 and the latest DOSbox I get the error flashing on the screen very briefly and then the “Radio Communications OK” message when testing the comms.
Attempts to read the radio result in the same error displayed and failure. At the same time, in the DOSbox status window I’m seeing a serial port error that the RX buffer overflowed. This makes me believe the problem is a handshaking issue, that either the radio or the computer is not pausing when it should. I’ve tried experimenting with the handshaking (XON/XOFF, hardware, none) to no effect, but this was with DOSbox and RSS running, so changing the settings without exiting and restarting DOSbox may not have any effect.
I’ll experiment further and report back. It would help a lot though to know what ALL of your port settings are set at, not just baud and FIFO. Regarding FIFO, Windows 7 advanced settings do no permit setting RX to zero. It uses sliders and RX is 1-14 (because that’s the size of the buffer in the UART chip) and the TX buffer is 1-16 characters. You can untick the checkbox, which would turn off the buffering completely, but that does not seems to have any effect on this problem (so far).
Hello Michael:I am using DOSBox on my Windows computer. I have a known working RIB box. I’m trying to read a Radius M208. I also have the correct RSS ver R07.20.01. I have DOSBox configured to use COM1. DOSBox starts my RSS perfectly. I use the CNTRL F11 and F12 keys to adjust the CPU to about 275.
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Now when I run the COM TEST it responds perfectly with RADIO ACESS OK. Now when I go to read the radios codeplug I get the status bar and the computer attempts to read the radio but after a minute or less I start seeing Overrun RX errors on my DOSBox window. After reading about Overrun RX issues I tried playing with the FIFO buffers by first turning it off, by adjusting for various settings, and still get the overrun errors on RX.
I also set the COM1 port to 2400 baud, 8, N, 1.Not sure what else to try. Can you send some light on what else I might need to do?Thanks for any help!73’sJeffWB8REI. I’ve got an LRA radius that won’t program.
Dosbox - usb to serial = code 2 no response.Dosbox on windows XP with a real com port gives the invalid optcode error. Radio doctor gets somewhere but then it errors and says “com port already open”Thing is, I see the TX light of the cable going and this cable using the same USB to serial adapter programmed an M1225 just fine. I also get RX and TX overruns on dosbox XP no matter how high I set both delays. The radio is getting the commands because I hear it beep. Completely lost 🙁.