On Monday 03 June 2019 05:58:24 pm Chris Albertson wrote: > Here is a good serial port guide for Linux. Section 16 is > "troubleshooting". > THeir first step is to do what I suggested, check BIOS setting before > booting. > After that, they suggest scanning PCI bus > As in lspci? No serial ports listed when booted to testings kernel:
ene@coyote:~$ lspci 00:00.0 RAM memory: NVIDIA Corporation MCP55 Memory Controller (rev a2) 00:01.0 ISA bridge: NVIDIA Corporation MCP55 LPC Bridge (rev a3) 00:01.1 SMBus: NVIDIA Corporation MCP55 SMBus Controller (rev a3) 00:02.0 USB controller: NVIDIA Corporation MCP55 USB Controller (rev a1) 00:02.1 USB controller: NVIDIA Corporation MCP55 USB Controller (rev a2) 00:04.0 IDE interface: NVIDIA Corporation MCP55 IDE (rev a1) 00:05.0 IDE interface: NVIDIA Corporation MCP55 SATA Controller (rev a3) 00:05.1 IDE interface: NVIDIA Corporation MCP55 SATA Controller (rev a3) 00:05.2 IDE interface: NVIDIA Corporation MCP55 SATA Controller (rev a3) 00:06.0 PCI bridge: NVIDIA Corporation MCP55 PCI bridge (rev a2) 00:06.1 Audio device: NVIDIA Corporation MCP55 High Definition Audio (rev a2) 00:08.0 Bridge: NVIDIA Corporation MCP55 Ethernet (rev a3) 00:09.0 Bridge: NVIDIA Corporation MCP55 Ethernet (rev a3) 00:0e.0 PCI bridge: NVIDIA Corporation MCP55 PCI Express bridge (rev a3) 00:0f.0 PCI bridge: NVIDIA Corporation MCP55 PCI Express bridge (rev a3) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor HyperTransport Configuration 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Address Map 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Miscellaneous Control 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 10h Processor Link Control 01:08.0 Multimedia video controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder (rev 05) 01:08.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI Video and Audio Decoder [MPEG Port] (rev 05) 01:0b.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx] 02:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) 02:00.1 IDE interface: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 03) 03:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 8400 GS Rev. 3] (rev a2) 03:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1) No serial there. > This is the best documentation of serial ports I've seen > www.tldp.org/HOWTO/Serial-HOWTO.html Thanks, bookmarked. > > On Mon, Jun 3, 2019 at 10:48 AM Gene Heskett <[email protected]> wrote: > > On Monday 03 June 2019 01:34:49 pm Chris Albertson wrote: > > > The best way to test serial ports under Linux (or any other OS) is > > > to make a loopback device. This is a fancy name for a short > > > length of wire that short the Rx and Tx pins. You should then > > > be able to read back every byte you send. It loopback fails then > > > you know the promlem is at your end and not the cable or the other > > > computer. > > > > > > If the port is not even showing up in the /dev tree than I wonder > > > if the hardware is enabled. Raspberry Pis have much hardware > > > disabled by default so the drivers don't load and take up space. > > > Many PC have serial disabled in BIOS for the same reason. > > > > Not that I am aware of Chris, this port is on the back of the > > mainboard, a decade old M2N-SLI Deluxe Asus board. And it works > > when booted to wheezy. > > OO, so you can make it work and make it fail reliably. > Twould appear to be the case, yes. I've had to ditch my quick change drive cage, a 3 holer that after 10 years was getting flaky, in favor of a non-quick change 4 drive cage, so I'll now have to swap the sata1 and sata2 cables to boot back to wheezy. I may do that tomorrow for an hour or so just to verify thats testably true. > > > On Mon, Jun 3, 2019 at 10:26 AM Gene Heskett > > > <[email protected]> > > > > wrote: > > > > On Monday 03 June 2019 01:02:23 pm Greg Bernard wrote: > > > > > Have you thouht of using a USB to serial adapter? > > > > > https://www.amazon.com/TRENDnet-Converter-Installation-Univers > > > > >al-T U-S9 /dp/B0007T27H8 > > > > > > > > Yes and no Greg. They are all db9's and this sniffer is db25. I > > > > have the fdti cables, but not a spare 9 to 25. > > > > > > > > I'm more concerned that this testing's java is way to new. > > > > > > > > > On Mon, Jun 3, 2019 at 11:43 AM Gene Heskett > > > > > <[email protected]> > > > > > > > > wrote: > > > > > > Greetings all; > > > > > > > > > > > > One of the things I occasionally do is run a couple programs > > > > > > to talkto a trs-80 computer running in the basement, which > > > > > > has 3 serial ports on it, and the one that works with > > > > > > drivewire is the bitbanger, running at about 155 kilobaud. > > > > > > drivewire is written in java and apparently the java is too > > > > > > new. > > > > > > > > > > > > So the next thing is to run minicom, and see if it will talk > > > > > > to a hardware serial port whose top speed is 9600 baud. I > > > > > > have one of those 232 line testers with a slew of colored > > > > > > leds, which are all on in one color or the other, but I > > > > > > can't get minicom to blink any of them. So I look next with > > > > > > lsmod, no serial module. > > > > > > > > > > > > Is there any other way I can make the db9 port on this mobo > > > > > > work? > > > > > > > > > > > > Thanks all; > > > > > > > > > > > > Cheers, Gene Heskett > > > > > > -- > > > > > > "There are four boxes to be used in defense of liberty: > > > > > > soap, ballot, jury, and ammo. Please use in that order." > > > > > > -Ed Howdershelt (Author) > > > > > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > > Emc-users mailing list > > > > > > [email protected] > > > > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > Cheers, Gene Heskett > > > > -- > > > > "There are four boxes to be used in defense of liberty: > > > > soap, ballot, jury, and ammo. Please use in that order." > > > > -Ed Howdershelt (Author) > > > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > > > > > > > > > > > _______________________________________________ > > > > Emc-users mailing list > > > > [email protected] > > > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > Cheers, Gene Heskett > > -- > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author) > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > > > > > > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
