Re: Digest Number 944
2006-01-28 by jayasooriah
... Well said. I could not agree with you more.
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EMI - was Re: lpc2138 5V tolerant is not really tolerant!
2006-01-28 by charlesgrenz
... the IC ... Hi Rob, I am not either even though I have been designing our products to eliminate EMI for CE approvals for the past 4 years on our products. I
RE: [lpc2000] Re: Digest Number 944
2006-01-28 by Michael Rubitschka
Dear Tsvetan As a professional developer for win/linux application i cannot let your comment pass by without disagreement ;-) ... Imho this is what sepperates
Re: Digest Number 944
2006-01-28 by tsvetanusunov
... Philips didn t miss anything and LPC2148 USB is working as it says in the Philips documentation. We made at Olimex - USB mouse, USB mass storage, USB
POE
2006-01-28 by Michael Rubitschka
... It looks like National is going to push poe hard. I attended a seminar a jear ago and the already provided solutions for poe. I dont like poe because you
RE: [lpc2000] Digest Number 944
2006-01-28 by Paul Curtis
Steve, [Context of USB stack for LPC214x] ... As I said in the original post, my plans for the USB stack are not yet fully formed. It might never come to
RE: [lpc2000] USB question
2006-01-28 by Joel Winarske
... That s the way I read it. I found things work fine running core at 12MHz, although I m running at 24MHz. I wonder what the context is for the 18MHz
Re: [lpc2000] EMI - was Re: lpc2138 5V tolerant is not really tolerant!
2006-01-28 by Leon Heller
... From: Rob Jansen To: Sent: Saturday, January 28, 2006 6:11 AM Subject: [lpc2000] EMI - was Re: lpc2138 5V
Re: [lpc2000] lpc2138 5V tolerant is not really tolerant!
2006-01-28 by Peter Jakacki
Just to chip in as well, I have never had a problem with 5V 232 chips at any baud-rate etc. The fact that you measured 2.3V when you used a series resistor
USB question
2006-01-28 by Mauricio Scaff
In the USB chapter we can read this: The following registers are located in the AHB clock domain. The minimum AHB clock frequency should be 18 MHz. They can be
[lpc2000] EMI - was Re: lpc2138 5V tolerant is not really tolerant!
2006-01-28 by Rob Jansen
I m not an EMI expert, ... I did do some ESD research/design once for a web tablet. Although the IC used (forget which one) was said to be ESD safe, firing at
Re: [lpc2000] lpc2138 5V tolerant is not really tolerant!
2006-01-28 by Yuri Ostry
Hello, Gus. Saturday, January 28, 2006, 0:28:55, you wrote: G On my board I have LPC2138 connected to MAX232 running at 5V. I had G problems with UART
Re: IRQ / FIQ status register general question.
2006-01-28 by jayasooriah
As you are entering and leaving the exception in the same mode, and given you are allowed to change modes when you have the privilege, I do not see anything
Re: lpc2138 5V tolerant is not really tolerant!
2006-01-28 by charlesgrenz
Hi Gus, I just currently designed a LPC2138 part with a ICL3222ECPN running at 5VDC and have no problems with speeds up to 115.2K. I do have a 51 ohm series
Re: lpc2138 5V tolerant is not really tolerant!
2006-01-28 by Guillermo Prandi
I didn t have a 5V voltage in my board, so I used MAX3232, which is the 3.3V version of MAX232. There is an ST3232 also, which is equivalent. You can use that
Education board from Embedded Artists
2006-01-27 by Rob Jansen
Well, worth mentioning is the fairly new Education board from Embedded Artists. http://www.embeddedartists.com/products/education/index.php An LPC2148 forms
Re: [lpc2000] Digest Number 944
2006-01-27 by Steve Franks
... I notice this keeps coming up. Name your price, then. Sounds like it may become a preffered option for those with no budget for hardware analysers.
Re: [lpc2000] lpc2138 5V tolerant is not really tolerant!
2006-01-27 by Rob Jansen
Gus, ... I had a MAX232 running at 5V connected to an LPC2106, no series resistors. No problems at all running at 115200 Baud. Regards, Rob
Re: [lpc2000] Re: General SPI Question
2006-01-27 by Mauricio Scaff
You just must be sure that your PCLK is at least 8x the inclock clock in SCK pin. ... [Non-text portions of this message have been removed]
Re: [lpc2000] lpc2138 5V tolerant is not really tolerant!
2006-01-27 by Marko Panger
Hi Gus, Could you describe what kind of problems you had and on which UART. I m also using 5V powered MAX232 to drive my UART lines without series resistors.
lpc2138 5V tolerant is not really tolerant!
2006-01-27 by Gus
On my board I have LPC2138 connected to MAX232 running at 5V. I had problems with UART until I added a 4.7K resistor in series. and the voltage high on it now
RE: [lpc2000] Re: TD1(pin 22) on LPC2292/LPC2294 as GPIO
2006-01-27 by Joel Winarske
... P0.26 is reserved per user manual page 128: http://www.semiconductors.philips.com/acrobat_download/usermanuals/UM_LPC21X X_LPC22XX_2.pdf You should be able
RE: [lpc2000] Re: TD1(pin 22) on LPC2292/LPC2294 as GPIO
2006-01-27 by Boris Králik
LPC2294 ... Regards / S pozdravom Boris Kralik http://www.geocities.com/kralikbo/ ... ___________________________________________________________ Win a
RE: [lpc2000] Re: TD1(pin 22) on LPC2292/LPC2294 as GPIO
2006-01-27 by Joel Winarske
... What s the LPC21xx part you re working with? Joel
RE: [lpc2000] Re: TD1(pin 22) on LPC2292/LPC2294 as GPIO
2006-01-27 by Boris Králik
Yes,direction (GPIO0_IODIR) was OK. PCB_PINSEL1 &= 0x0FFFFF; //bit 23:20 as 0, ?P0.26? and P0.27 as GPIO GPIO0_DIR |= (1
Re: General SPI Question
2006-01-27 by jeffbranc01
... Sean, This is good to know because I was going to have conflicting crystal speed issues if it did require matching (regardless of clock dividers). What
RE: [lpc2000] Re: TD1(pin 22) on LPC2292/LPC2294 as GPIO
2006-01-27 by Joel Winarske
... Direction registers reset as inputs, be sure to set direction register correctly. Joel
RE: [lpc2000] SPI and SSP double buffered?
2006-01-27 by Joel Winarske
... SPI Data Register User Manual excerpt: Writes to this register will be blocked from when a data transfer starts to when the SPIF status bit is set, and
Re: [lpc2000] IRQ / FIQ status register general question.
2006-01-27 by Sten
... Hi Dimitry, but this is not what the guys from ARM intended. It seems to be working hack for your special case. ;-) --
Re: [lpc2000] SPI and SSP double buffered?
2006-01-27 by Mauricio Scaff
The SPI of the PICs is in my view superior of the one implemented in LPC. In LPC the maximum clock is lower (per Main clock) and you have no double buffering.
SPI and SSP double buffered?
2006-01-27 by Gus
Hello, On SPI, is the shift register different than the data register? In other words, if I am a slave, can I put data in the SPI data register any time even
Re: IRQ / FIQ status register general question.
2006-01-27 by Guillermo Prandi
... manually ... According to the Addison Wesley s ARM Architecture Reference Manual, MSR will update your choice of CPSR or SPSR but not BOTH. However,
Re: [lpc2000] Re: TD1(pin 22) on LPC2292/LPC2294 as GPIO
2006-01-27 by Boris Králik
I try TD1 pin set as GPIO (P0.26) and toogle it (SET/CLR), but without effect. Any sugestion ? ... Regards / S pozdravom Boris Kralik
Re: IRQ / FIQ status register general question.
2006-01-27 by Guillermo Prandi
Hi, Dmitry. I am no ARM7 expert, but perhaps what you re looking for is this: xxx_IRS: msr cpsr_c, #MODE_FIQ|FIQ_BIT|IRQ_BIT ; @ switch to FIQ with ints
Re: [lpc2000] IRQ / FIQ status register general question.
2006-01-27 by Dmitry Diky
Hi Sten, ... Well, I am pretty sure... To be precise I got two possible interrupt requests: - timer and SPI ones. I assign timer interupt to IRQ and SPI to
Re: [lpc2000] IRQ / FIQ status register general question.
2006-01-27 by Sten
... Hi Dimitry, Uuuuuuuuuhhhhhhh, ... Are you sure you know what you are doing? FIQ- and IRQ-mode are dedicated modes for the two types of interrupts (FIQ and
IRQ / FIQ status register general question.
2006-01-27 by Dmitry Diky
Fellows, In my application it is convenient to switch between IRQ and FIQ in some interrupt service routine. As I know FIQ mode used banked r8-r14 registers
Re: [lpc2000] General SPI Question
2006-01-27 by Sean
Jeff: In the LPC manual (at least for the 2148) it says that the clock speed register is unused when you are operating in slave mode -- the incoming clock
General SPI Question
2006-01-27 by jeffbranc01
Hello, This is more of a general question regarding using the SPI peripherals with the LPC2000 chips. I m somewhat new to this form of serial communications,
Re: [lpc2000] LPC2138 revision B.....
2006-01-26 by Karl Olsen
... From: Yuri Ostry To: Sent: Thursday, January 26, 2006 9:15 PM Subject: [lpc2000] LPC2138 revision B..... ...
LPC2138 revision B.....
2006-01-26 by Yuri Ostry
Hello, Does anyone tried to load something to LPC2138 rev. B using Segger J-Link? I always get failure on a first block (probably because something wrong
Re: Flash write errors
2006-01-26 by Guillermo Prandi
Sorry, guys, my mistake. I was not checking the sector for being blank after my IAP_EraseSectors() function, and there was a typo in that function that
Re: [lpc2000] Flash write errors
2006-01-26 by Mauricio Scaff
I cannot talk about the IAP errors, but the ISP errors sometimes are related to unsupported baud rates for your selected crystal. Here I use 12.000Mhz and it
Re: [lpc2000] Any tools for Linux
2006-01-26 by xultz
De:lpc2000@yahoogroups.com Para:lpc2000@yahoogroups.com Cópia: Data:Wed, 25 Jan 2006 23:17:13 +0100 Assunto:Re: [lpc2000] Any tools for Linux ... Hi there I
Re: Flash write errors
2006-01-26 by Guillermo Prandi
Hi, Richard. This is an excertp of my test code: #define IAP_LOCATION 0x7ffffff1 typedef void (*IAP)(unsigned int [],unsigned int[]);
Re: [lpc2000] Flash write errors
2006-01-26 by Richard Duits
Because of the build-in ECC, the flash cannot update a block smaller than 16 bytes (aligned on a 16 byte boundary). This is not documented in the user manual.
Re: [lpc2000] Flash write errors
2006-01-26 by Robert Adsett
My apologies if this shows up twice. Every once in a while Yahoo decides it couldn t send a piece of mail my way several days in the past and shuts down
Re: [lpc2000] Flash write errors
2006-01-26 by Robert Adsett
... I had some similar occurrences with the Philips utility as well. They seem to have disappeared about the time I started using the automatic downloading
Re: [lpc2000] Re: Any tools for Linux
2006-01-26 by Tom Walsh
... Maybe that now works, but when I first encountered the package there were features that were missing that I needed. So, I went with the commercial
Re: [lpc2000] Re: Flash write errors
2006-01-26 by Tom Walsh
... My apologies, for some reason I get IAP & ISP mixed up and equate one with the other. No, I haven t encountered problems with the IAP. The one processor