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LPC2148 Baud rate mysteriously changed

2006-03-02 by stephan2148

Hi, I had an application running a uart at 155200 on LPC2148, debugging as normal with Jlink. Then I find the link quit, and I tracked it down to the Uart now

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Re: GNU tools example - any demand

2006-03-02 by valdef78

... up ... an ... to ... varient, ... Yes, I m interested too.. I begin to re-create those files with much comments to do the same thing, as a tutorial

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Re: [lpc2000] Re: UART baudrate

2006-03-02 by Tom Walsh

... I worked my way through the example given in the LPC2138 User Manual and I came up with this little perl program. Perhaps others may find it useful:

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Re: GNU tools example - any demand

2006-03-02 by icapapindi

I think is a great idea too, thanks ... so they can be used for this goal. ... make something like Code Architect for LPC2000 family. I have a little

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Re: UART baudrate

2006-03-02 by icapapindi

Very good example !! I think that I did calculations correct, the problem is that I use 10 Mhz as core clock with pll=1 and maybe this clock is not big enought

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Re: [lpc2000] UART baudrate

2006-03-02 by Xtian Xultz

... Are you using PLL? I am using right now an LPC2106 with 10MHz crystal. To calculate the baudrate, you must first pick you pclk. For example, I am using

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Erasing external Flash

2006-03-02 by nagarkarajay

Hello, My setup: Phytec LPC2294 development board IDE - Crossstudio JTAG for debugging Flash Chips (AMD/Spansion 29LV320) mapped at 0x80000000. My issue: The

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Re: UART baudrate

2006-03-02 by icapapindi

Can I do it with PLL_MULT=1? I use the Xtal frecuency without PLL, I m using these values: PCLK = 10 Mhz Divisor = 4 MULVAL = 14 DIVAddVal = 5 With these

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Re: [lpc2000] UART baudrate

2006-03-02 by Tom Walsh

... Crystal: 10000000 PLL MULT: 4 Periph Bus Div: 2 divisor: 4167 desired: 300 actual: 299.976 error: -0.008% divisor: 2083 desired: 600 actual: 600.096

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UART baudrate

2006-03-02 by Iván Cayón

Hi !! I m trying to send data with the UART at 115200 bps with a Xtal of 10 Mhz and the PC doesn t receive the data correctly. Is the baud rate limited with

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GNU tools example - any demand

2006-03-02 by brendanmurphy37

There s been a few occasions (including one current one) of people looking for examples of the files you need to get a basic program up and running using the

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Re: Bit addressing

2006-03-02 by brendanmurphy37

Mukund, You should be aware that if you take this approach, you are essentially committing yourself to a particular compiler vendor, as the approach is

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Re: Bit addressing

2006-03-02 by brendanmurphy37

... so ... write ... reason ... port ... This is indeed a simpler approach than the version I posted. The version I use has the advantage of being able to use

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Re: [lpc2000] Re: Bit addressing

2006-03-02 by Mukund Deshmukh

Actually the code is quite big, and I was looking for shortcut.. Best Regards, Mukund Deshmukh. Beta Computronics Pvt Ltd, 10/1, IT Park, Parsodi,

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Re: Bit addressing

2006-03-02 by pitstock_kiwi

Bit addressing can be a lot simpler than all the stuff I have seen so far. Firstly the LPC214X.H is missing the byte access registers. Why write 32 bit address

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Re: [lpc2000] Re: Bit addressing

2006-03-02 by Mukund Deshmukh

Thanks. Yes this is what I was looking for. Can you send me header files for LPC2138, 2148, or link. Could you care to explain in details, with disadvantage.

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Re: Flash Downloading with CrossStudio

2006-03-01 by arm7dude

Mark It s quite possible that you need to update you JLink driver. The current on is 3.12c. I ve seen a lot of problems downloading with the older drivers.

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Re: ARM core forum

2006-03-01 by valdef78

(again, in a forum I would have just edited my precedent post..) but for ArmCorePro, maybe the subject will be very too vast. it s a nice idea to try to

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Re: [lpc2000] LPC2138 Bootloader Issue

2006-03-01 by Bryce Himebaugh

Tim, ... Is it correct that P0.14 is high after reset in the sequence that you outlined ? I believe that you need to insure that P0.14 is low for greater than

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Re: ARM core forum

2006-03-01 by valdef78

... a real advantage with forums is that infos are organized by posts, so you can see (or avoid) a specific subject. and if you want to edit your precedent

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RE: Re[4]: [lpc2000] Re: Bit addressing

2006-03-01 by Robert Adsett

... That s probably what I was remembering. ... So that would be a register per bit? 32 registers to deal with a full 32bit I/O port (plus presumably another

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Re: ARM core forum

2006-03-01 by valdef78

Same for me, I really prefer forum over newsgroup or mailing list, so I ll visit this forum too, but that will be difficult to add real content rapidly.. ...

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Re: LPC2138 Bootloader Issue

2006-03-01 by tah2k

Thanks, you are correct and the problem is solved. I have been looking at those two lines for days knowing what they should be. Kills me. Thanks- Tim ...

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Re: Re[4]: [lpc2000] Re: Bit addressing

2006-03-01 by Robert Adsett

... Sorry I don t understand this. This is a general issue using any sort of Read-modify-write sequence when you have hardware that maps a ready-only register

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Re: [lpc2000] LPC2138 Bootloader Issue

2006-03-01 by Robert Adsett

... That sounds like the reset and P0.14 lines are reversed. P0.14 must be low coming out of reset. Something like Reset ---|____________|---------------

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RE: Re[4]: [lpc2000] Re: Bit addressing

2006-03-01 by Paul Curtis

Hi, ... There is a TR for Embedded C. It has an unweildy set of crappy macros. No wonder users have never heard of it, compiler vendors probably don t want

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Re: LPC2138 Bootloader Issue

2006-03-01 by Danish Ali

Hi Tim, I haven t checked this on my own hardware, but it sounds to me like you have RESET and P0.14 swapped over. The bootloader can only look at P0.14 after

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