Re: [lpc2000] LPC2103 in IAR EWARM
2006-01-17 by FreeRTOS Info
... With respect - if they are not distributing them yet - neither should you. I presume they are copyrighted? Regards, Richard. http://www.FreeRTOS.org
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Updates to noPC site for IVOS kernel using other crystals
2006-01-17 by Peter Jakacki
I have added some hex image files for the IVOS kernel that will run directly with 14.7456MHz and 12MHz crystals as well as the 22.1184MHz one. However, all the
LPC2103 in IAR EWARM
2006-01-17 by Langosta39
Hi all, I just received the .menu, .i79, and .xcl files from an IAR tech to allow programming and debugging the LPC2103 in the IAR Embedded Workbench (my
Optimization problem
2006-01-17 by andersryl
Hi, I have a weird problem (hmmm, what problems aren t weird?) regarding the optimization flag in GCC. I use GNUARN 4.0.1, Eclipse 3.0.1 and an board from
IIC without Interrupts..?
2006-01-17 by dhp_ec
Hello all, i am working on LPC2294 and trying to interface M24128 Serial EEPROM using IIC interface.(only one master annd one slave) using interrupts this job
Re: Building DIY wiggler w/74VHC14
2006-01-17 by derbaier
... Ed, your use of HC14 parts is exactly the same as ARM did in their Application Note 31. IMHO, I think that you will find the RC time constant of your
PWM, change frequency during runtime
2006-01-17 by tomfeller69
Hi I have a question about the PWMPR Register (frequency, LPC2292). To generate a ramp for an stepper motor, i want change the frequency during the runtime of
PCM
2006-01-17 by Michal Krestan
I ve got some problem with one application, where I have LPC2103. I need to sample and replay audio stream in length about 20sec, but audio interface is in PCM
Re: Maximum periodic D/A speed
2006-01-17 by Karl Olsen
... Yep. You can add an external analog latch , i.e. a sample-hold circuit with an analog switch and a capacitor, where the analog switch is controlled by a
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-17 by Leon Heller
... From: Stephen Pelc To: Sent: Tuesday, January 17, 2006 10:55 AM Subject: [lpc2000] Building DIY wiggler
Re: Maximum periodic D/A speed
2006-01-17 by brendanmurphy37
Just to clarify the example below: In your startup code, you can pre-load FIQ registers, but obviously you have to be in FIQ mode to do this! We do this as
Re: Maximum periodic D/A speed
2006-01-17 by brendanmurphy37
Karl, As a further suggestion to anyone taking this approach, I d suggest the following optimisations (which can be applied in other scenarios as well that
Building DIY wiggler w/74VHC08
2006-01-17 by Stephen Pelc
... Some PC printer ports generate fast (
Re: Maximum periodic D/A speed
2006-01-17 by brendanmurphy37
Hi, I presume you re talking about using some form of external DAC as part of your suggestion? If not, can you explain the statement Use this to latch the
Re: [lpc2000] Building DIY wiggler w/74VHC14
2006-01-17 by Sean
Just throwing out some additional ideas, as I am in the same boat you are (just starting out here): For the +5v (is this really needed?) You can try something
LPC2212 power down. Core current problem.
2006-01-17 by pavel.rangelov
Hello, We are developing a battery powered application using LPC2212. And we have a strange problem with the core current consumption. After the core went into
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-17 by Sean
Why do you need to use 5V for the LPT side? Most parts can be powered from either 3.3v or 5v and are tolerant to either regardless of the voltage they are
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-17 by delta soft
For 74AC08 you can have Outputs source/sink 24 mA , http://www.fairchildsemi.com/pf/74/74AC08.html Adrian ... Adrian Valeanu. SC PROSAFE SRL J/40/11835/2002 ;
Building DIY wiggler w/74VHC14
2006-01-17 by Ed Schlunder
Thank you for all the suggestions. I have put together an initial schematic diagram using 74VHC14 schmitt trigger inverters and RC low pass filters (as
RE: [lpc2000] LPC214x USBMEM stressed hangs after some seconds (USB hangs after some hours)
2006-01-17 by Joel Winarske
... It s up to 131k and still counting, even when pasting the Keil c51v801.exe eval software to the SD card... All 26Meg of it. You might want to take a look
RE: [lpc2000] LPC214x USBMEM stressed hangs after some seconds (USB hangs after some hours)
2006-01-17 by Joel Winarske
... I just ran your test code on IAR LPC2148 KickStart board, against the IAR USB MassStorage example code. No problem. The refresh time of the SD card
Re: [lpc2000] Re: Buy LPC2138 parts
2006-01-16 by Piotr Zbysinski - EP(H)
You can try here: http://www.kamami.pl/?id_k1=87&id_k2=56&id_k3=6 Prices are in PLN, if you need EUR all prices divide by 4. Piotr
Re: Buy LPC2138 parts
2006-01-16 by nonuckingfumber
... Yes it does, thanks. I m actually in Italy so the german Euro site is the most appropriate if I can manage the German! I had known about digikey. Years
Re: [lpc2000] Maximum periodic D/A speed
2006-01-16 by David Hawkins
... You can eliminate the software jitter by introducing a set of latches. Use the hardware timer or PWM hardware to generate a fixed frequency square-wave (or
Re: [lpc2000] Maximum periodic D/A speed
2006-01-16 by Karl Olsen
... From: drareve To: Sent: Monday, January 16, 2006 9:40 PM Subject: [lpc2000] Maximum periodic D/A
Re: Building DIY wiggler w/74VHC08
2006-01-16 by derbaier
... Ground ... some people ... There is also another problem that can occur, and is VERY difficult to detect sometimes. Without a Schmidt trigger input, if the
Re: [lpc2000] tcpip
2006-01-16 by Sean
Sorry, my bad, the last one loads fast, the other 3 are pretty slow. -- Sean
Re: [lpc2000] tcpip
2006-01-16 by Marko Pavlin (home)
OK, just another metoo . lynx 82.32.114.142:47821 works just fine: Task State Priority Stack # ************************************************
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-16 by Leon Heller
... From: Tom Walsh To: Sent: Monday, January 16, 2006 9:58 PM Subject: Re: [lpc2000] Building DIY wiggler
RE: [lpc2000] tcpip
2006-01-16 by Joel Winarske
... I ve never had a problem with this one. It s quite reasonable even 30+ hops away. Joel
Re: [lpc2000] Re: Building DIY wiggler w/74VHC08
2006-01-16 by Leon Heller
... From: donhamilton2002 To: Sent: Monday, January 16, 2006 9:21 PM Subject: [lpc2000] Re: Building DIY
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-16 by Arie de Muynck
From: Bertrik Sikken ... Also: * use proper level shifting buffers or separate buffers for the LPT port side(5V logic) and the target
Re: [lpc2000] tcpip
2006-01-16 by FreeRTOS Info
... Even this one? http://82.32.114.142:47822/cgi/rtos My contribution to this thread started by saying that uIP could be sped up by sending dynamic data as
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-16 by Tom Walsh
... However, it may not have the same drive levels (output current). The 244 series is a buffer / driver, typically producting 12ma sink and 4ma source. The
Re: [lpc2000] tcpip
2006-01-16 by FreeRTOS Info
... a ... a ... Yep - UK - just a few thousand miles away. Richard. http://www.FreeRTOS.org
Re: [lpc2000] tcpip
2006-01-16 by Sean
Just a me too , they all work fine for me (WinXP IE6) but they are sloooowwww...
RE: [lpc2000] tcpip
2006-01-16 by Joel Winarske
IE loads them fine on my machine. On the ones in question, in IE there is a delayed load between the header and body. It s a curious difference between
Re: [lpc2000] tcpip
2006-01-16 by FreeRTOS Info
... and ... The 47820 port is using a WizNET I2C interface. The 47821 is Pauls uIP demo bit banging a Crystal LAN running as a task under FreeRTOS (LPC). The
Re: Building DIY wiggler w/74VHC08
2006-01-16 by donhamilton2002
... This first one I built was from parts in my junk box. A scrap vector board and a db-25 connector. Through it together one late night. Looked like hell, but
RE: [lpc2000] tcpip
2006-01-16 by Joel Winarske
... Hmm. First round the second listed was giving me The document contains no data. After multiple tries through the list then the second worked and the
Re: [lpc2000] tcpip
2006-01-16 by Mauricio Scaff
Here too. Win XP Pro. Firefox 1.5 http://82.32.114.142:47821/ http://82.32.114.142:47820/ http://82.32.114.142:47822/cgi/tcp
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-16 by Bertrik Sikken
... Hash: SHA1 ... I just bought an Olimex Wiggler clone, it cost about 24 euros. It can t make it work very well with OCDRemote (only at the lowest speed),
RE: [lpc2000] tcpip
2006-01-16 by Joel Winarske
It works fine on the AT91SAM7X demo, and not the Crystal demo. I had the same results some time back. If I browse the Crystal demo in IE, it s fine. I m
Re: [lpc2000] tcpip
2006-01-16 by Mauricio Scaff
Here I use firefox and it works fine. ... [Non-text portions of this message have been removed]
Maximum periodic D/A speed
2006-01-16 by drareve
Does anyone know what is the maximum speed that I could send data to the D/A at fixed frequency? I am using a LPC2148 with a 10MHz crystal and a PLL M value of
Re: [lpc2000] Re: Building DIY wiggler w/74VHC08
2006-01-16 by Sean
Hamilton: What did you do differently between the two that you built? -- Sean
Re: [lpc2000] Building DIY wiggler w/74VHC08
2006-01-16 by Leon Heller
... From: Sean To: Sent: Monday, January 16, 2006 7:44 PM Subject: Re: [lpc2000] Building DIY
Re: Building DIY wiggler w/74VHC08
2006-01-16 by donhamilton2002
... confused as ... figured out ... rock solid ... History has shown that when people build their own, problems acure. When those same people buy a working
RE: [lpc2000] tcpip
2006-01-16 by Joel Winarske
Hi Andrew, ... It s fairly recent. August 31, 2005. Only ten of the OpenTCP-1.0.4.src files are modified. Most changes are compiler related. http_server.c
Re: Buy LPC2138 parts
2006-01-16 by gtechnzltd
Hello Nonuckingfumber, I just got the latest LPC2138 pricing from Adilam. $15us each and $10us frieght shipped out of Australia. Order must be bigger than