bv2144's articles:

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Re: DEP function development on a low budget 0 6 (4/26/2013 9:36:30 AM) comp.arch.fpga Make that 'DSP' "Bruce Varley" wrote in message news:... > Is it at all practical for home-builders on a very limited budget to > develop DSP type functions, such as filters and the like, on FPGAs? > Rea... Bruce

DEP function development on a low budget 4 8 (4/26/2013 9:35:33 AM) comp.arch.fpga Is it at all practical for home-builders on a very limited budget to develop DSP type functions, such as filters and the like, on FPGAs? Reading around, I get the impression that experimenters that do it ha... Bruce

Looking for ARM system with RTOS 30 31 (1/1/2013 1:54:30 AM) comp.arch.embedded I'm right at the end of my tether in trying to move some real time stuff (MIDI) to Linux. The ARM-9 platform I've chosen, while very nice in other ways, uses a proprietary FPGA interface for all the port in... Bruce

Embedded linux and achievable timer rate 5 42 (10/20/2012 9:56:26 AM) comp.arch.embedded I've been stopped dead by a limitation with the ARM-9 250 MHz SBCs, running Linux, that I've been relying on for my next project. The maximum rate I can run a repeat timer (setitimer, etc) at is 50Hz, ie. 2... Bruce

Somewhat OT: Efficient timing under Linux 5 35 (10/1/2012 5:07:20 AM) comp.arch.embedded Programming a somewhat compute-intensive and time-critical application on an embedded ARM-9 system, running Linux. I need a clock in the low tens of milliseconds for triggering synchronous functions, ie. ... Bruce

How does MidiOx handle garbage data? 0 37 (9/8/2012 5:44:28 AM) comp.music.midi I have a misbehaving MIDI driver (my own hardware and software), and I need to see what it's outputting to the MIDI port. At this stage I can't guarantee that my system will be outputting a 'proper' MIDI fram... Bruce

Another midi file requirement 4 34 (5/1/2012 6:24:22 AM) comp.music.midi Hi, I'm looking for some source code that will 'extract' just the note events from a MIDI file, all that I need is ND/NU, note no, velocity down and a time reference that can be either absolute or relative. T... Bruce

Re: Formatting SD cards under Linux 1 42 (4/15/2012 2:48:49 AM) comp.arch.embedded Apologies to the kind people that have been staying with me on the SD card problem for not reverting to queries and suggestions. The problem isn't solved, but is definitely on the back burner at the moment, d... Bruce

OT? Formatting SD cards under Linux 7 42 (3/31/2012 6:42:44 AM) comp.arch.embedded I'm trying to work myself out of a bind. I have a backed up *.dd file of a target system image in a host file system, and am using a Vivitar SD card reader/writer to burn it down onto micro SD cards using the... Bruce

High end vs low end platforms 5 36 (3/14/2012 9:11:02 AM) comp.arch.embedded This is a serious enquiry, sorry if it comes across as a bit of a rant. I�ve done two projects over the last 6 months, both with a similar target end result, a real time device for processing MIDI messages f... Bruce

bv2144's replies:

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Interfacing 3.3V SPI devices to a 5V MCU 12 19 (2/7/2013 1:53:26 PM) comp.arch.embedded I'm about to do some work with interfacing 3.3V SPI based devices to 5V MCUs and unlike the devices I've been used to, these particular 3.3V SPI devices are _not_ 5V tolerant. Interfacing the SPI output li... clubley (1184)

Looking for ARM system with RTOS 30 31 (1/1/2013 1:54:30 AM) comp.arch.embedded I'm right at the end of my tether in trying to move some real time stuff (MIDI) to Linux. The ARM-9 platform I've chosen, while very nice in other ways, uses a proprietary FPGA interface for all the port in... bv2144 (52)

baud rate autodetection on AVR 8-bit? 70 35 (12/7/2012 2:17:16 PM) comp.arch.embedded BTW, is there an easy way to autodetect the baud rate while using an AVR UART? (Preferably something that works with ATmega8, given that those MCU's are such a cheap thing nowadays.) There're some i... oneingray (254)

Culham Centre for Fusion Energy - Recruitment Fair 2 32 (11/2/2012 6:57:50 PM) comp.arch.embedded Culham is looking for a number of bright people for a variety of positions in Fusion Energy Research (see link to poster for details). -- *************************************************************... Paul_E.Bennett (250)

Electronic Guitar Tuners 55 55 (8/13/2012 10:52:30 PM) comp.arch.embedded I am being asked to design a gadget that has some special features, but also includes a guitar tuner. I have looked at the web a bit, but not found any good references that show exactly how a tuner works. ... gnuarm (2644)

Controlling 230V 100W Electric Bulb using 8051 microcontroller. 17 39 (6/29/2012 11:32:57 AM) comp.arch.embedded Hi, I am designing a 8051 microcontroller system. It has ports for interfacing. How can I control a 230V 100W Electric Bulb using 8051 microcontroller ports? In essence, how do we control high voltage ap... sinu.nayak2001 (68)

metal dector for barbed wire fences 11 54 (6/16/2012 3:04:18 PM) comp.arch.embedded comp.arch.embedded,sci.electronics.components metal dector for barbed wire fences Anybody here have any suggestions for possible ways to detect fence wire, mostly 1, 2 or 3 levels of barbed wire but al... ht (83)

Altera Cyclone Processor 3 43 (5/17/2012 4:11:00 PM) comp.arch.embedded Hi! I have very little (almost nothing ) experience working with Altera Cyclone II kit, but I have a problem and looking to find a solution to a problem. I want to use a processor for building automation and ... arindam.rbt (1)

Another midi file requirement 4 34 (5/1/2012 6:24:22 AM) comp.music.midi Hi, I'm looking for some source code that will 'extract' just the note events from a MIDI file, all that I need is ND/NU, note no, velocity down and a time reference that can be either absolute or relative. T... bv2144 (52)

OT? Formatting SD cards under Linux 7 42 (3/31/2012 6:42:44 AM) comp.arch.embedded I'm trying to work myself out of a bind. I have a backed up *.dd file of a target system image in a host file system, and am using a Vivitar SD card reader/writer to burn it down onto micro SD cards using the... bv2144 (52)