Re: spurious interrupts on LPC
2006-03-15 by roger_lynx
... It is there, Paul. And they might not want to air it. ... Well, that could cut in the other revenues , perhaps?:-) Wanna get 13 MB pdf of ARM ARM, *free*?
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Re: spurious interrupts on LPC
2006-03-15 by roger_lynx
... Hi Robert, That is a fair challenge. ... Right. And if ARM says: If an interrupt is received by the core during execution of an instruction that disables
RE: [lpc2000] LPC2138 - short supply.
2006-03-15 by Frantz Robinson
The 213x and 4x are backorder pretty much everywhere, but I ve found some LPC2136FBD64 in stock in our US and European warehouses if you can make do with 256K
Re: spurious interrupts on LPC
2006-03-15 by roger_lynx
... source of ... Hi Jayasooriah, Oh? On ARM core with PL 190 VIC, not dealing with this consequence is a blissful ignorance , IMHO. ... LPC, ... disables ...
Re: spurious interrupts on LPC
2006-03-15 by philips_apps
Jaya, I forwarded your question to the author of the FAQ because I do not know the answer out of own experience. The Application Note makes the clear statement
RE: [lpc2000] Re: spurious interrupts on LPC
2006-03-14 by Paul Curtis
I thought this witch hunt was over, but I see it s alive again. ... They might not wish to air this in public. How about trying to find an instruction set
Re: spurious interrupts on LPC
2006-03-14 by ian.scanlon
Perhaps this will help: http://www.arm.com/contact_us/ ... source of ... the ... not have ... be lost ... of LPC, ... disables ... or does ... documentation
Re: I2S on LPC214x with SSP ???
2006-03-14 by ian.scanlon
Yes. When /ws is 1 no data will be transmitted from SPI as slave. In the case of I2S you will want the duty cycle of /ws to be 50% and the period 2x the number
Re: What is Fast I/O ?
2006-03-14 by pitstock_kiwi
Thats a pretty good question really. The manual isn t the best thing to clarify this. Heres my take... Fast I/O should always be used as its the norm. The old
Re: IAP questions (LPC2101) - conserving flash
2006-03-14 by chazeltopman
I m in a similar boat as I m porting code from an environment where I keep pointers into a flash buffer in EEPROM. I double buffered the pointers so that the
Re: spurious interrupts on LPC
2006-03-14 by Jayasooriah
Hi Marko, I read the AN a few times -- in section 3.1, in explaining one source of spurious interrupts when feeding watchdog timer, it says: The disabling
Re: Fast ADC
2006-03-14 by pitstock_kiwi
The data sheet says 10 bit conversion time = 2.44 µs. So 1/2.44µs yeilds about 410 killer samples per second. My testing shows that using Keil C the best I
Re: [lpc2000] Re: spurious interrupts on LPC
2006-03-14 by Marko Pavlin (home)
Just a reference: http://www.standardics.philips.com/support/documents/microcontrollers/pdf/an10414.pdf
Re: I2S on LPC214x with SSP ???
2006-03-14 by ee_gary
Is it safe to assume that mono audio can be generated by using only one SPI port? Gary
Re: IAP questions (LPC2101) - conserving flash
2006-03-14 by shergtu
... many ... did ... Bruce, Wow, I didn t even realize until now there was sample code along those lines (EEPROM emulation). I just downloaded the .zip file &
Re: spurious interrupts on LPC
2006-03-14 by Jayasooriah
Dear Robert, In the FAQ you referred to, on ARM7DTMI-S Core , to the FAQ: Can spurious interrupts occur in the LPC200? , Your answer is: Yes, spurious
RE: [lpc2000] Acceptance filter
2006-03-14 by Joel Winarske
... What are the values of AF_ACCEPT_ALL and AF_ON in your code? Joel
Re: Calculate time.
2006-03-14 by teddyroskvist
Perfect. Thank you. ... is enabled)/vpb_dividor ... and vpb_dividor is 4, the peripheral_frequency would be 15MHz. So ... microprocessors Pic
Re: [lpc2000] Calculate time.
2006-03-14 by Jack Key
The formula is: peripheral_frequency=oscillator_frequency*pll_multiplier(if pll is enabled)/vpb_dividor So if your oscillator_frequency is 12MHz,
Re: I2S on LPC214x with SSP ???
2006-03-14 by ian.scanlon
** oops ** Misread the docs on /WS (word select). But the concept is still the same with two slaves and externally generated /ws and clock. Very simple if
Re: I2S on LPC214x with SSP ???
2006-03-14 by ian.scanlon
I have done something similar. I2S from uC to DAC looks like (quick review) simple SPI interface. You need to create a system with two slave devices and an
Calculate time.
2006-03-14 by teddyroskvist
How do i calculate the time? I have the example you can see herunder. In the interrupt routine the TOMR0 is set to 149999 because it should be 10mSec. But how
Re: What is Fast I/O ?
2006-03-14 by philips_apps
... Close but not quite correct, some other devices of other manufacturers have connected the I/O to the AHB bus but there are still some delays on the AHB
Re: I2S on LPC214x with SSP ???
2006-03-14 by ee_gary
I m interested in this as well. Has anyone successfully communicated with an I2S DAC using SPI? Gary ... LPC ??? ... be the
RE: [lpc2000] Re: Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by Joel Winarske
... This same code was running on an Olimex LPC2129 board over a month ago, no problem. ... 4.30A ... The code you posted initially had a while(1) in your
Re: What is Fast I/O ?
2006-03-14 by croquettegnu
What about the maximum speed in Mbit/s on these Fast I/O ?
Re: I2S on LPC214x with SSP ???
2006-03-14 by croquettegnu
Thanks but this link concerns at91 product ! you mean there are no peripherals dedicated to I2S or AC97 in the LPC ??? Thanks
Re: Problem with hardware flow control of LPC2210 uart
2006-03-14 by Karl Olsen
... The LPC2210 doesn t have hardware flow control. This was added in the newer LPC214x and LPC2101/02/03. Karl Olsen
Problem with hardware flow control of LPC2210 uart
2006-03-14 by Luc Steynen
Hi, I am trying to use the auto-cts feature of the LPC2210 cpu, uart1. To enable it, I have to set the CTSen Auto-CTS control bit , which is bit 7 in the
Re: I2S on LPC214x with SSP ???
2006-03-14 by ian.scanlon
See: http://www.atmel.com/dyn/resources/prod_documents/doc2646.pdf to implement in CPLD. You can also set the SSP as slave and use internal timers and some
[lpc2000] Kei uVision pin connect block configuration wizard
2006-03-14 by Marko Pavlin
I am using configuration wizards in keil uVision. It s very useful for system configuration etc... Before I start writing bits for PINSEL0&1 I would like to
Say "Goodbye" to Expensive Emulators
2006-03-14 by david_embedded
Hello, GAO Engineering now offers the most affordable substitution to high-priced DSP emulators online. Don t believe us? Go to our online store
Re: [lpc2000] Re: Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by FreeRTOS Info
... Maybe too obvious but sometimes the obvious can catch us out, have you: + Stepped through the timer setup code. + Made sure the correct header files are
Re: Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by eng_amrahmed2011
My problem is not in the compilation. I compile the project with No errors and No warnings. My problem there is no multitasking. Cause i think the timer0
Re: [lpc2000] Re: Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by FreeRTOS Info
... You could start by providing some information on what your problem is. What is the symptom? Is it a compilation issue? Regards, Richard.
Re: Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by eng_amrahmed2011
Thanks for your reply, it didn t work :-( What is IAR version you use ? what can i do more than that? Please help, AmR ... emailed ... not
Re: What is Fast I/O ?
2006-03-14 by ian.scanlon
You should refer to the LPC214x *user manual* UM10139. Chapter 8 covers GPIO. The fast GPIO FIO is implemented as a second set registers that acess the
USB is configured or not?
2006-03-14 by Manisha
Hi all, i want to check a condition whether the USB device in LPC2148 board is configured or not after connecting to the host. is there any register which
Fast ADC
2006-03-14 by Hossam Alzomor
Hi What s the fastest ADC could be achived with LPC micros? Best Regards Hossam Alzomor www.i-g.org
Re: What is Fast I/O ?
2006-03-14 by Hossam Alzomor
Hi I think that fast IO is a feature in recent released versions of ARM. It s an IO s connected directly to AHP of AMBA bus and not throgh APB You can check
I2S on LPC214x with SSP ???
2006-03-14 by croquettegnu
I need to use the I2S protocol and I am looking for what would be the most appropriate peripheral to deal with ??? Is AC97 possible too ? Thanks a lot !
What is Fast I/O ?
2006-03-14 by croquettegnu
Hi all, I would like to knwo what is exactly fast I/O because I have not found anything about timing on the LPC214x datasheets... Thanks in advance
Re: Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by eng_amrahmed2011
... you ... including ... Pleaaaaaaaaase can you resend the file again. Thanks SO much eng_amrahmed2011@yahoo.com
RE: [lpc2000] Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by Joel Winarske
The day you posted the uC/OS-II source code to this group I emailed you example working project for Olimex LPC2129, uC/OS-II, and IAR; not including OS source.
Re: [lpc2000] LPC2138 - short supply.
2006-03-14 by Mukund Deshmukh
Yes we need leaded version FBD Best Regards, Mukund Deshmukh. Beta Computronics Pvt Ltd, 10/1, IT Park, Parsodi, Nagpur-440022 Cell - 9422113746
Re: [lpc2000] LPC2138 - short supply.
2006-03-14 by Leon Heller
... From: Mukund Deshmukh To: Sent: Tuesday, March 14, 2006 5:13 AM Subject: [lpc2000] LPC2138 - short
PowerPC 405
2006-03-14 by Krucay Lubomir
Hi friends, i have dead dvb receiver strong srt 4500 after flashing wrong file. there is a 16pin jtag connector onboard, bud with my homemaden jtag with
Urgent IAR EWARM with uCOS-II :-( ?
2006-03-14 by eng_amrahmed2011
Salam, Urgent, I need help :-( I can t get uCOS-II work with IAR (for ARM) Can you please send any ready project that works with these boards (or any LPC2000)
Re: [lpc2000] Re: _start code crashes
2006-03-14 by Tom Walsh
... You are also going to need a makefile to build your code. You want to disable certain default behaviors of gcc and replace it with your own. For example,
Re: [lpc2000] ADC input leakage answer
2006-03-14 by Tom Walsh
... Thank you very much! Now they can notify Publishing and get the User Manual updated, heh. TomW -- Tom Walsh - WN3L - Embedded Systems Consultant