5v system integration
2006-03-15 by dijucthat
I have a project that was setup for a 5v AVR that I would like to convert to an LPC2294. Q1: Is it better to use a simple voltage divider on the GPIO Input (to
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Re: spurious interrupts on LPC
2006-03-15 by brendanmurphy37
Jaya, Since you keep asking, it doesn t take too much effort to find the following: http://document.sharpsma.com/files/tec_errata_LH7A404-SMA03018A.pdf This
Re: [lpc2000] ARM Thruput expectations
2006-03-15 by Leon Heller
... From: K B Shah-lascaux To: Sent: Wednesday, March 15, 2006 5:02 PM Subject: Re: [lpc2000] ARM Thruput
Re: [lpc2000] A link to many unanswered questions
2006-03-15 by Robert Adsett
... Or they could come here. I for one don t use webfora I find them annoying at best. Robert
Re: [lpc2000] ARM Thruput expectations
2006-03-15 by Robert Adsett
... A couple of things to point out. Throughput and MIPS are quite different things. A 32 bit ARM at 60 MIPs will handle 32 bit arithmetic quite a bit faster
Re: What is the interest of SSP Peripherals ?
2006-03-15 by ee_gary
Think of SSP as an enhanced SPI peripheral. It has more configuration options than a standard SPI peripheral, making it useful for those times you d otherwise
Re: [lpc2000] A link to many unanswered questions
2006-03-15 by Leon Heller
... From: ah_sandiego To: Sent: Wednesday, March 15, 2006 3:56 PM Subject: [lpc2000] A link to many
Re: [lpc2000] ARM Thruput expectations
2006-03-15 by K B Shah-lascaux
Running from Flash is also fast... Look at pipeline architecture.... LPC series from Philips semi. has memory accelerator module (MAM) that allows
ARM Thruput expectations
2006-03-15 by raweaver06
I m looking into using ARM so I m a newbie. I currently use a processor that is 16 bits 30MIPS capable. So seeing that ARM is 32 bits and 60 MIPS capable has
Re: spurious interrupts on LPC
2006-03-15 by Jayasooriah
Dear Robert, I am happy to share with you my knowledge about spurious interrupts, and my understanding of what is happening. --- In lpc2000@yahoogroups.com,
SPI/MMC example - anyone got this to work?
2006-03-15 by ah_sandiego
This app note (2148) below shows how to use the SPI bus/mode to talk to an SDIO card. I have cut and paste the example and it compiles correctly, but when I
A link to many unanswered questions
2006-03-15 by ah_sandiego
I think some of the experts here should visit this forum http://www.sparkfun.com/cgi-bin/phpbb/viewforum.php?f=11 There are many unanswered questions there. AH
Problem with reading an input on pin X
2006-03-15 by teddyroskvist
Would You please show me how to read if an input from a switch. I have been trying on many ways, but it dosen t work proberly - I get strange results. Here is
LPC2148 Inputs stuck low on some boards
2006-03-15 by stephan2148
Hi, Does anyone have an idea why on a few of my pcbs two inputs for switches are stuck low? Another pcb works fine, and my 10K pullups -pullup. The code on the
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by 42Bastian Schick
... The problem comes up if the reason for the interrupt is gone away before the VIC could ack it. This happens mainly because the interrupt was disabled in
AW: [lpc2000] I2C interface.
2006-03-15 by Jan Hansen
Hi Rick, so what do you get then? if the slave responds at all, one on them you will get; ack and nack only describe the state of SDA and SCL. try to catch the
Re: Executing firmware in upper flash sectors?
2006-03-15 by Srdan Suka
Thanks, it would be enough to start :)
Re: [lpc2000] Re: Executing firmware in upper flash sectors?
2006-03-15 by 42Bastian Schick
... Not that I know of. main() { if ( testIO() ){ asm( bl 0x2000 ); } else { asm( bl 0x4000 ); } } Just add the correct startup code and write testIO. --
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by Alexey Bishletov
... If someone use CPRS to disable and enable interrupts instead of using VICIntEnClr, will he have problems with spurious interrupts discussed in AN? WBR,
Re: AC97, TDM or CODEC Interfacing ?
2006-03-15 by ian.scanlon
The basic idea is to configure the SPI or SSP as a slave device and supply the clock and control signals. These can be derived from timers / external logic as
Re: Executing firmware in upper flash sectors?
2006-03-15 by Srdan Suka
Is there some example of such boot-manager ? Thanks, Srdan Suka
Re: [lpc2000] Re: PINSEL2 crashes everything
2006-03-15 by Stanley Frederickson
When you say that your hardware doesn t support ISP, I am guessing you just don t have the UART setup to communicate with the PC. Can you still pull pin P0.14
Re: [lpc2000] Executing firmware in upper flash sectors?
2006-03-15 by 42Bastian Schick
Hi ... Sure. ... You will have to write a boot-manager read e.g. an I/O pin and than jump to the second or 3rd sector. -- 42Bastian
Re: [lpc2000] Re: PINSEL2 crashes everything
2006-03-15 by German Ortiz
Hi! If you write PINSEL2 bit 2 to zero, this disable the debug resource on the LPC microcontroller. So, if you need to debug yor firmware, this bit PINSEL2:2
[lpc2000] Re: spurious interrupts on LPC
2006-03-15 by German Ortiz
Hi! Please see this link. http://www.arm.com/support/faqip/3677.html Best Regards!
Re: PINSEL2 crashes everything
2006-03-15 by upanie1
... cycle. ... problem? ... Hi. Ihave the same problem. ... OK, but how to this if i can t load new program - JTAG doesn t want to work. I can t use ISP
Executing firmware in upper flash sectors?
2006-03-15 by Srdan Suka
Hi everyone, I would like to have more than one firmware on LPC2103 (each firmware in one sector). Is it possible to do such thing? How to execute ie. firmware
Re: spurious interrupts on LPC
2006-03-15 by brendanmurphy37
... ARM ... system ... spurious ... is a ... I m really baffled by your statements above: what you re effectively saying is that if the person porting an OS to
Re: [lpc2000] LPC2103 source (need 10 pcs)
2006-03-15 by Leon Heller
... From: Sagaert Johan To: Sent: Wednesday, March 15, 2006 9:33 AM Subject: [lpc2000] LPC2103 source
RE: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by Paul Curtis
Jaya, ... I couldn t give a flying fig about Certified OSs. The term spurious in the Philips/ARM context is well defined. You disable interrupts and an ISR
Re: [lpc2000] LPC2103 source (need 10 pcs)
2006-03-15 by Cristian CUCUIET
DigiKey have stock www.digikey.com Best Regards, Cristian ... __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has
LPC2103 source (need 10 pcs)
2006-03-15 by Sagaert Johan
Hi I look for someone who can deliver me some LPC2103 qfp48 devices for use on my protos. EBV has stock but needs a minimum order of 250pcs , and Spoerle is
Vectored versus FIQ when using multiple interrupts
2006-03-15 by Sagaert Johan
Hi I come from the 8051 world and have some questions. As i understand from the docs : When i need interupt routines for 3 peripherals : If i use vectored
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by Dominic Rath
Google s Cache has it: http://72.14.207.104/search?q=cache:uqap5i7sR2EJ:www.arm.com/support/faqip/3677.html Regards, Dominic
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by Michael Johnson
For whatever reason http://www.arm.com/support/faqip/3677.html doesn t show any more. This problem (disabling an interrupt as it occurs) affects all ARM7TDMI s
What is the interest of SSP Peripherals ?
2006-03-15 by croquettegnu
Sorry for this newbie question, but regarding the SPI and the UART peripherals , I don t see what is the interest, the use of the SSP peripheral ? Thanks
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by 42Bastian Schick
... The Atmel AIC has the same problem. And though I just start using it the ST STR7 EIC also. If an interrupt request needs some cycles to propagate through
Re: spurious interrupts on LPC
2006-03-15 by Jayasooriah
Paul, If you read my original post carefully, you will realise that I was talking about spurious interrupts, not nested interrupts or interrupt lockouts.
AC97, TDM or CODEC Interfacing ?
2006-03-15 by croquettegnu
Hi guys, I2S seems to be possible with the use of a SPI What about AC97 or TDM management ? Is the SPI enough , the SSP to dela with ? Thanks in advance
Re: spurious interrupts on LPC
2006-03-15 by Jayasooriah
Re: spurious interrupts on LPC
2006-03-15 by Jayasooriah
Dear Robert, --- In lpc2000@yahoogroups.com, philips_apps wrote: I forwarded your question to the author of the FAQ because I do not
Re: C question
2006-03-15 by elektrknight
Hi, __irq is telling the compiler that the void ADC0Handler (void) is not an ordinary function that you can call but an interrupt handler. Typically
I2C interface.
2006-03-15 by rick_frenz
Hi!I am interfacing EEPROM with LPC2138 through I2C engine.I do egt acknowledgement for slave address but when I do send address and data it simply doen t give
Re: PWM and Capture inputs !!!!
2006-03-15 by Vimal Amin
PWM and Capture input appears to be too stupid question or not so important. So its ignored. But I expect atleast Philips appication to clear the doubt.
C question
2006-03-15 by heedaf
I have a newbie question. In the following code void ADC0Handler (void) __irq What does __irq do? I ve never seen this before. It comes from the Kiel ADC
Re: spurious interrupts on LPC
2006-03-15 by unity0724
... Wow, that s impressive... You guys processed that Spurious Interrupt in just a few clock cycles, instead of months.... What clock frequency is that LPC2x
Re: [lpc2000] Acceptance filter
2006-03-15 by David Mercier
Sorry about that ! // Acceptance Filter #define AF_ON 0 #define AF_OFF 1 #define AF_ACCEPT_ALL 2 ... [Non-text portions of
Re: IAP questions (LPC2101) - conserving flash
2006-03-15 by Guillermo Prandi
Rob, I am doing the exact same thing myself. Our units never hit the field yet, but they seem to behave quite well in the lab so far. The only thing to mention
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by Dewayne
I have a newbie question. In the following code void ADC0Handler (void) __irq What does __irq do? I ve never seen this before. Thanks, Dewayne [Non-text
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-15 by Don Williams
Did a lung tumour on a little 10yo last nite at Kids hosp wmead. dozens of mets all thru the lung already so it was palliative - lovely young parents just