search for: rs485

Hi All, Is there any devices or pair of devices that do audio over RS485 and then convert to SIP for us in asterisk? Of course a speaker and push button at the other end. Is there anything like that out there? Thanks, Jerry -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/...

Hi All, I'd like to modify an existing driver to support my Victron Multiplus inverter/charger. This device is not supported by the victron driver. I do have serial protocol definition from Victron - which is a big bonus... Could anyone tell me which of the existing drivers will be easiest to modify? Thanks Thanks -- Boli

Hi, I am trying to make a program in C to communicate with a temperature sensor over my serial port that uses RS-485 and is a half duplex. I am however having trouble getting the device into RS-485 mode, is it possible to use RS-485 mode in Centos 6.5 or does it only support RS-232 mode?

I just merged drm (Direct Rendering) from HEAD. - Support for latest Intel chips - Support and fixes for many AMD/ATI chips r500 and below - Support AMD/ATI IGP based chips (rs690/rs485) - Lots of code cleanups - Lots of other fixes and changes since the existing drm is 2+ years old If you are experiencing a "garbled" screen with certain pci/pci-e based radeons, I have another patch in HEAD that isn't included yet. thanks, robert. ------...

...organisations and we use FreeBSD on the PCs for data acquisition and processing. We have recently shifted to FreeBSD6/amd64 and one machine in particular is exhibiting a strange problem. The acquisition process is a Tcl interpreter with a largish chunk of C code which talks to the hardware (via RS485 and a custom PCI card). Once the system is set up it streams data back via the PCI card and runs it through various data processors (eg dump raw data to disk, FFT, winds, etc..). The actual forking of processes is handled in Tcl and the C code only gets involved to write the data out (to an FD...

Hi, does anyone have any experience with UPSes managed with modbus/jbus protocol? I have a Socomec/Sicom Masterys MC unit, that is equipped with both RS232 and RS485 interfaces and, according to manual, supports JBUS-P and JBUS-PH protocols. I'd like to get some basic monitoring working, but I don't even know where to begin. Regards, -- Sebastian Zagrodzki Dzia? Sieciowy ICM, Uniwersytet Warszawski s.zagrodzki at net.icm.edu.pl (+48-22) 5520527, 8268...

Hi to group I want to use speex for an embedded device caryying voice over rs485 .The controller i'm using is LPC2368. I recompiled the code written for stm32 . I used as per original file 8khz , narrowband,complexity 1 , quality 4 ,fixed point , generic model . Cpu speed is 72 MHZ .Running some benchmarks for the codec i found out that i have almost 90% cpu utilisation.It...

Hello, Does an R package exist for communication with instruments using GPIB (IEEE 488) protocol? Something similar exists in python for control of instruments over GPIB, RS232, or USB buses (http://pyvisa.sourceforge.net/) Thanks, Marko

...kind of little computers you might find in you microwave, etc. Only these ones are designed with an open-ended consumer programmable interface for creating general purpose devices. (These little guys also support a neat mode where you can create a master/slave network of many of them kinda like an RS485 industrial control bus. That means only one of these devices needs to connect to your PC but you could control hundreds of these in robotic control or data acquisition type scenarios. This is only the tip of the iceberg and I am certainly not the authority on this. But take a look at some of the l...

...eon: zaphod fixes for pciaccess not allowing multiple MMIO maps radeon: fix EXA pixmap offset on zaphod radeon: zaphod: fix render accel for EXA radeon: fix textured-xv on zaphod avivo: fix zaphod cursor in theory radeon: fix zaphod EXA with texture video radeon: rs485 vs rs485m.. mobile? non-mobile? bi? radeon: fix set_cursor_colours remove fb offset atombios: for LVDS set use ref div as per legacy radeon: fix surface access on avivo chips. radeon: fix typo in memory calcs atombios: fixup atombios bitfields for endianness rade...