Re: transmit interrupt kicker
2005-01-21 by chazeltopman
... I m just sending a data stream to an LCD which never talks back so the interrupt only comes from the transmitter. Which gives me the option of not having
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Re: [lpc2000] Re: transmit interrupt kicker
2005-01-21 by Robert Adsett
... What about all the other interrupt sources? Are you doing transmit only? I would consider that an unusual case but it might work then. If you are dealing
Re: transmit interrupt kicker
2005-01-21 by chazeltopman
... If you don t read the identification register then it will work. That is my premise. The only way that you do clear the interrupt is to write to the THR.
Re: [lpc2000] Re: LPC2212
2005-01-21 by Anton Erasmus
... Even though these pins are configured as GPIO lines, they remain open-drain. They are not only configured as open-drain when the I2C functionality is
Re: lpc2131 use of p1.16 to p1.25 during debug/production flash programming.
2005-01-21 by lpc2100_fan
Hi, most of the compiler tool chains come with the option of JTAG programming. E.g. Keil U-Link, IAR J-link or also the emulators like Nohau, Hitex, Ashling
Re: eCos port for the Ashling LPC2106 development board?
2005-01-21 by Richard
... LPC2106 ... didn t ... I m not sure what your requirements are, but you might like to take a look at http://www.FreeRTOS.org as an alternative. LPC2106 is
Re: EINT1 and EINT2 problem
2005-01-21 by Amit
http://groups.yahoo.com/group/lpc2000/message/5132 Check it out. Amit ... being ... having
Re: [lpc2000] Re: 44Khz 16-bit audio - low-power audio?
2005-01-21 by Paul Stoffregen
Indeed, low power codecs aren t hard to find. Here s an example... Go to www.ti.com (Texas Instruments), and type low power codec into the keyword search.
Re: 44Khz 16-bit audio - low-power audio?
2005-01-21 by Rick Collins
... Take a look at the AK4550 from AKM. At 10 mA from 3.3 volts, this is low power as well as small size. The last time I got a price quote, it was around $4
Re: [lpc2000] Re: 44Khz 16-bit audio
2005-01-21 by Paul Stoffregen
Ok, since 2 people asked... ... It s Atmel. These SAM parts have come up in this group over and over again. Except for a few folks with early ES silicon,
re: lpc2131 use of p1.16 to p1.25 during debug/production flash programming.
2005-01-21 by jarv02000
If P1.20 is 1 , set to not use the trace port after reset but p1.26 is low to enable debugging, can p1.16 to p1.25 be used as general purpose I/O ports during
Re: Rowley CrossWorks ARM support --any I2S
2005-01-21 by nutleycottage
Hi Gus, We started work supporting the Cirrus Logic EP9301 chip - unfortunately the flash memory doesn t work on the board we have, so things have ground to a
Rowley CrossWorks ARM support --any I2S
2005-01-21 by Gus
Rowley CrossWorks people, Does any of the chips you guys support in CrossWorks have an I2S bus? Thanks, Gus
Re: 44Khz 16-bit audio
2005-01-21 by Gus
... vendor? That vendor and other vendors please! What ARM chips are out there with I2S bus? Gus ... burning ... vendor?
Re: [lpc2000] Re: 44Khz 16-bit audio - low-power audio?
2005-01-21 by Brett Delmage
... Higher rate audio codecs also seem to be power-hogs, at least in relation to the miserly power that ARM7 is typically associated with. Does anyone have any
Re: [lpc2000] Re: transmit interrupt kicker
2005-01-21 by Robert Adsett
... Nope, the interrupt is cleared when you read the identification register so that won t work. ... Fair enough, that was just a general outline of what was
Re: [lpc2000] transmit interrupt kicker
2005-01-21 by Robert Adsett
... You they re-occur to you let us know, I can t think of any conditions that shouldn t be dealt with without needing a watch process. ... Remember the FIFO
Re: LPC2132/38 ISP
2005-01-21 by jarv02000
... Dave, If you go on the philps website at http://www.semiconductors.philips.com/pip/LPC2131FBD64.html there is a flash programming utilty in the support and
Re: [lpc2000] Re: 44Khz 16-bit audio
2005-01-21 by onestone
Most of them that I m aware of have an AC97 interface. I haven t explored this on the LPC2xxx yet, but plan to. I have a funny feeling somewhwre that the LPc
Re: 44Khz 16-bit audio
2005-01-21 by brendanmurphy37
... include a ... provide ... lots ... transfer ... Philips... ... Paul, I don t suppose you d like to share with us the name of this vendor? Brendan
Re: 44Khz 16-bit audio
2005-01-21 by brendanmurphy37
Yes, that is one way of describing the core of a sigma-delta codec. I d agree with Owen on his observation about using DSP algorithms to reduce hardware
Re: transmit interrupt kicker
2005-01-21 by chazeltopman
... When you get down to it, there are always a few skellies lurkin. Interrupts are always such tricky stuff because you can be in the middle of doing anything
Re: EINT1 and EINT2 problem
2005-01-21 by itsjustimpossible
Hi The two IRQ are via the VIC. The instruction at address 0x18 is; LDR PC,[#-0x0FF0] which should be fine. All the other IRQs are OK. Once the stall occurs
eint0 external interrupt
2005-01-21 by douglasbolton
Hi I m having problems with the external interrupt 0 using it in a falling edge sensitive mode. I have no problems using interrupts 2&3. Something in the
Re: EINT1 and EINT2 problem
2005-01-21 by itsjustimpossible
... ISR ... edges) ? ... Hi I did think about that initially, but what with the VPBDIV corruption etc, I thought that changing the polarity on the fly might be
Re: external reset of timer
2005-01-21 by itsjustimpossible
... timer ... timer. ... Thanks for all the suggestions, I gave it a try and it works very nicely. One of those useful techniques that I will have to remember,
Re: eCos port for the Ashling LPC2106 development board?
2005-01-21 by Amit
This might help.. http://www.ecoscentric.com/ecos/ecospro.shtml Amit ... LPC2106 ... didn t
eCos port for the Ashling LPC2106 development board?
2005-01-21 by smt5211
Hi, Does anyone know where to get the eCos support on the AShling LPC2106 development board? Much appreciated. We have tried following the instructions at:
Re: Development tools
2005-01-20 by smt5211
We have had a lot of success with the Ashling tools. Philips worked with Ashling to write the debugger for the LPC2xxx chip as it was developed, the Ashling
Re: [lpc2000] Re: 44Khz 16-bit audio
2005-01-20 by Paul Stoffregen
For audio, a signal to noise plus distortion spec is common. That s what 6 dB per bit (with an ideal converter) is all about. Human hearing is complex, and
Re: [lpc2000] transmit interrupt kicker
2005-01-20 by Peter Jakacki
Yeah, you d think that the transmit routine would be simple hey? As Rob brought out, you have to kick it. Usually I do this by a separate polling routine
LPC2132/38 ISP
2005-01-20 by dsidlauskas1
Does anyone know of a program that can be used to flash (ISP) the 2132 via the serial port? Thanks, Dave Sidlauskas
Re: [lpc2000] Re: Development tools
2005-01-20 by Marko Pavlin (home)
I just strated with ARM, which makes me no reference, but so far I have good experience with KEIL (using x51 tools for many years now). Support is excellent,
Re: [lpc2000] Development tools
2005-01-20 by TecnoAstro
Hi After trying almost all the development tools I chose Keil and the Olimex boards. Keil is powerfull and simple to use. The Olimex boards are very well
Re: LPC2212
2005-01-20 by lpcarmed
The I2C lines are not configured to open drain by default. P0.2 and P0.2 will be in GPIO mode after reset. User manual, page 117, last column, Reset Value=00
Re: [lpc2000] transmit interrupt kicker
2005-01-20 by Robert Adsett
... There isn t another way. ... Well, one way or another you ve got to start the UART going. I haven t run across a UART that doesn t need to be primed by
Re: Has any one faced optmization problem using gnu arm gcc
2005-01-20 by Rick Collins
... That would be my bet. I expect that SCB_PLLSTAT and PLL_LOCK are constants, intended to select a bit from a status word. Just ANDing them together
Re: Power Supply Sequencing - Latchup - FOLLOWUP
2005-01-20 by lp2000c
If your reset can go hi before the 1.8V supply has been stable long enough for the oscillator to stabilize, you will definitely have a problem. Basically, the
Re: Development tools
2005-01-20 by joe88250
... for ... ofcourse ... I m using ARM ADS1.2 as compiler, linker and IDE. Lauterbach Trace32 for debugging. The Lauterbach support is very well. FLASH
Re: LPC2212
2005-01-20 by scottkelsall
Hi Thanks for your help Cheers, Scott ... are ... programming ... energisation
transmit interrupt kicker
2005-01-20 by chazeltopman
Is anyone aware of another way to start the transmit interrupt running on the UART on an LPC2106 other than writing to the THR? I d rather the interrupt
Re: Has any one faced optmization problem using gnu arm gcc
2005-01-20 by Karl Olsen
... Probably (SCB_PLLSTAT & PLL_LOCK) is always false, so the while loop is infinite. Code after an infinite loop would never be executed, so GCC optimizes it
Re: [lpc2000] Has any one faced optmization problem using gnu arm gcc
2005-01-20 by capiman@t-online.de
Perhaps because one bracket is too much (2 open brackets, 3 closing brackets) ? Remove the one after ; ? Regards, Martin ... From: vijayasarathy T
Has any one faced optmization problem using gnu arm gcc
2005-01-20 by vijayasarathy T
Hi, Iam using GNU arm gcc compiler for LPC2104 , when i use while( !( SCB_PLLSTAT & PLL_LOCK ) );) this statement, the assembly codes are not generated for
Re: EINT1 and EINT2 problem
2005-01-20 by Richard
Hey Amit, Where can we customer types get this new errata? ;-) Richard ... to ? ... vector ? ... much ... stall ... I
Re: Development tools
2005-01-20 by lpc2100_fan
Hi Ken, first question, where are you located? Assuming in the USA: Look at Nohau for Emulators first if Europe I would look at Hitex and Ashling more closely
Development tools
2005-01-20 by kenbnny
Guys, Any advice on who is best in the market for the development tools for LPC2000 with Emulators in terms of price and performace adn ofcourse support. Rgds,
Re: [lpc2000] OT: LPC903 ICP spec
2005-01-20 by Peter Jakacki
Thanks again Dave, I ve joined, grabbed the files, and left a message. Maybe you could help some more? :) - Peter ... -- No virus found in this outgoing
RE: [lpc2000] OT: LPC903 ICP spec
2005-01-20 by David Kay
Philips Apps have just posted the ICP spec and source code for the ISP/ICP bridge software on the LCP900 users group:-
OT: LPC903 ICP spec
2005-01-20 by Peter Jakacki
This is slightly off topic but since this is a Philips micro and I also use them as a support micro for the LPC2xxx ..... I just