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Lpc2000

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RE: [lpc2000] Re: Flash Utility Hell..

2004-05-07 by James Dabbs

... Bill, In this case, it s a quartz crystal, connected directly to the processor pins, coupled to ground with 18pF caps. I should note that we started off

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Re: data alignment isue

2004-05-07 by Frank Sergeant

... In case it helps, I notice that pp. 127-128 of _ARM Ssytom-on-chip Architecture_ by Steve Furber mentions that loading a word from a non-word-aligned

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RE: [lpc2000] Re: Flash Utility Hell..

2004-05-07 by James Dabbs

... Leon, Our crystal is 14.7456MHz. The ISP tool (and the Bootloader code) wants this in KHz, and I ve tried 14745 and 14746 without success. Note that in

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How can I control GPIO port2/3?

2004-05-07 by janesleecn

Hi, Dear all I m using a LPC2214 in my project. and have released P2.31:8 as a GPIO but P2.7:0 as an external memory data bus. Strangely, I can t control the

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Re: [lpc2000] Re: Flash Utility Hell..

2004-05-07 by Bill Knight

Another question. If the LPC is being driven by an oscillator, has the output of the osc been divided down and capacitively coupled to the LPC? Direct drive

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Re: [lpc2000] Re: Flash Utility Hell..

2004-05-07 by Robert Adsett

... I can see how that might cause an error, just not the one he s seeing. I d suspect that the baud rate was marginal for the crystal but 9600 baud seems low

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Re: [lpc2000] 2 applications in flash

2004-05-07 by Bill Knight

Have the second application remap its interrupt vectors to RAM. -Bill Knight the ARM Patch On Fri, 07 May 2004 09:59:20 -0000, gnurules wrote: Hi, I m writing

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2 applications in flash

2004-05-07 by gnurules

Hi, I m writing 2 applications for the LPC2106 (they run in flash). 1) is a bootcode that checks if there is another application in flash 2) is the regular

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Re: LPC2106 and JEENI ICE

2004-05-07 by tendoskeleton

See message 2007: -Does ARM EMBEDDEDICE work with LPC210x- for the answer if the JEENI support the LPC210x. ... from ... JTAG ... the ... goes ... and ...

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Does ARM EMBEDDEDICE work with LPC210x

2004-05-07 by tendoskeleton

Hello, I have an embedded system with a LPC210x (x=4). I have to use a embeddedICE from arm as a programmer. I like to know of one of you guys does also uses a

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Re: Flash Utility Hell..

2004-05-07 by leon_heller

... V2.1.0 ... both ... Flash ... push the ... comes ... out. Have you set the crystal frequency? It s on the left of the window and quite easy to miss. Leon

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Flash Utility Hell..

2004-05-07 by James Dabbs

We re attempting to program our target board using the Phillips ISP utility. We ve used both the Phillips LPC2000 Flash Utility V2.1.0 and an earlier

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Re: [lpc2000] Re: Disable()/Restore()

2004-05-06 by Bill Knight

I can post some gcc routines for disabling, enabling, and restoring interrupts on the ARM. They must be compiled in ARM mode with the -mthumb-interwork option

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Re: Disable()/Restore()

2004-05-06 by embeddedjanitor

If you disable interrupts using the interrupt controller be aware of the spurious interrupt issues (mentioned in earlier postings). ... switch back. ...

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Re: Atomic Operations w/ARM

2004-05-06 by bobbruce000

... atomic ... operations? You can use the SWP and SWPB instructions to atomicly swap a register with memory. SWP swaps 32 bits, SWPB swaps 8 bits. You can

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Atomic Operations w/ARM

2004-05-06 by James Dabbs

Thanks for the insight on disabling/enabling interrupts. Along these lines, are there ways ( tricks ) of doing atomic memory operations with ARM without

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Re: [lpc2000] Disable()/Restore()

2004-05-06 by Sten Larsson

James, You have two options in Thumb mode: (1) Switch to ARM mode and disable interrupts in the CPSR, then switch back. (2) Disable interrupts in the interrupt

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Disable()/Restore()

2004-05-06 by James Dabbs

I m looking for some assembler reference code to disable and restore interrupts -- in thumb mode. Working through something by hand, I just seem to require a

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Using multiple capture pins

2004-05-06 by bobbruce000

On the LPC2114, multiple pins can be assigned to a single capture port. For instance, capture channel 0 of timer0 can be triggered by P0.2, P0.22 or P0.30.

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Re: Interrupt Question

2004-05-06 by digtalfreak

I can t see the reason in my code... I nearly exactly copied the Keil example and adapted it for my module and as long as no interrupt is generated everything

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Re: Interrupt Question

2004-05-06 by jim_e_dallas

The address you referenced (0x7fffe2ae) is in the boot loader area. Somehow your program must have jumped there or ran up to there. The boot loader is in Thumb

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Re: Interrupt Question

2004-05-06 by digtalfreak

I solved the Problem, it was a wrong startupcode that blocked the modus change. But now I have the problem that the interrupt causes an exaption, I think. The

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Interrupt Question

2004-05-06 by digtalfreak

I am using gcc and insignt and have problems using Interrupts. I m trying to use Timer0 to generate a Interrupt, similar to the Keil example blinky , but the

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Anyone seen this behavior?

2004-05-06 by James Dabbs

I haven t given up diagnosing this, but I thought I d see if anyone else has ever seen it.. I power on an unprogrammed LPC2106 on a new target board we re

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IAR XCL file name for LPC2106

2004-05-05 by ducatman2000

Dear ALL, Does anybody have a XCR file that works for the linker included in IAR Workbench for the LPC2106? My linker file is probably wrong with the memory

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Re[2]: [lpc2000] Programming LPC2106

2004-05-05 by Robert Adsett

... You definitely should not hook up the serial port directly to the micro. +/-12V on those pins is well within the expected range from serial ports. I would

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Re[2]: [lpc2000] Programming LPC2106

2004-05-05 by clapper

I don t know if this is useful or not, but when building our flash cable for our device, we were advised to not hook a cable directly from the pc to the lpc

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Re: Code protection

2004-05-05 by bobtransformer

Yes, thank you... I found that link easily on Google, but I wondered why Philips would now have that very important information in their documentation or even

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Re: Code protection

2004-05-05 by bobtransformer

The reason I am interested in looking at other parts are because of Atmels bad silicon on the ATmega32,64, and 128 parts and Atmels poor response to customers

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Re: [lpc2000] Programming LPC2106

2004-05-05 by Robert Adsett

... I think the next step would be to use a simple terminal program to and oscilloscope to debug your hookup. Make sure the ISP line stays low during (and

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Re: [lpc2000] Programming LPC2106

2004-05-05 by Beeno Rabbit

Hi Robert, Yes, I got the prograimming pin (ISP) pulled low. I just connect the PC s TX and RX to the uP s TX and RX. Beeno ... From: Robert Adsett To:

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Re: [lpc2000] Programming LPC2106

2004-05-05 by Robert Adsett

... No, the download/boot is contained in a protected area of flash. That error suggests it doesn t get the autobaud response back from the LPC. You do have

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Programming LPC2106

2004-05-05 by Beeno Rabbit

Dear ALL, I am using Philips software program to download the HEX code to LPC2106 via COM2, 9600. However, the warnimg message can t communicate with the

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Re: [lpc2000] Re: speed of pin toggle

2004-05-05 by MaxStream - Ryan Bedwell

... True, but if you have the memory accelerator (MAM) on, this tight of a loop should run with zero wait states from flash on the 21xx. A loop this small

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Re: [lpc2000] speed of pin toggle

2004-05-05 by Robert Adsett

... See http://groups.yahoo.com/group/lpc2000/message/37 the thread where this was discussed earlier. Robert Freedom has no meaning of itself. There are

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Re: speed of pin toggle

2004-05-05 by tsvetanusunov

... where do you run your code from? RAM or Flash? Flash can t work at 59Mhz (read the docs ;) and usually code from Flash runs slower than from RAM - make

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Re: [lpc2000] speed of pin toggle

2004-05-05 by the ARM Patch

Douglas Two things to remember. 1) It will take more than two assembly instructions to toggle an IO line in a loop. Take a look at the assembly code produced

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speed of pin toggle

2004-05-05 by douglasbolton

I believe I ve set the PLL of an lpc2106 with a 14.7 mhz crystal up to be 59 Mhz However when I toggle a GPIO pin using IOSET,IOCLR,IOSET it is only low for

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RE: [lpc2000] Re: Code protection

2004-05-05 by Hugh O'Keeffe

Hi Bob, Rest assured that flash protection works and is endorsed by Philips; they are working on the docs AFAIK. . See the FAQ on our site for some important

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Re: Code protection

2004-05-05 by douglasbolton

... 0x1fc ... We are also moving to the LPC parts because of problems with the avr. For my interest, was your problems with the avr corruption of flash code at

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