Re: Free LPC2000 Boot Loader
2006-05-01 by jayasooriah
... If you get Philips to agree to disclosure of the full source, you inspect and validate the source code yourself. You can also use reverse engieering
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Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... The reference I was referring to appears at Philips site has been moved and I do not know where to. Here is what was there (from a cached site):
Re: Free LPC2000 Boot Loader
2006-05-01 by unity0724
Umm.....Some questions, don t mind: - How do I know there is no Trojan Horse inside?? - How do I know your code does not over-cooked my flash?? or make it
Multiple IRQ routines in GCC
2006-05-01 by vineet jain
Hello, I need some help in writing IRQ routines in GCC, it works the way I wrote for KEIL GCC but doesn t with the Eclipse one. Stubs are placed in the sample
Re: Free LPC2000 Boot Loader
2006-05-01 by jayasooriah
Hello, If would like to know if people here would be interested in a free LPC boot loader with the following properties: * autobaud on receiving a single
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... In its original response to the MAM problem Philips said that if the MAM is used, instructions execute with zero wait states at up to 25Mhz (it may have
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... Watchdog is typically used to recover from deadlocks that include the shutdown of interrupts. ... The SAM allows you to do this as a matter of choice. ...
Re: [lpc2000] Re: LPC hardware+software problems
2006-05-01 by Robert Adsett
... Seconds is way too long. Mostly I agree with you but there is a certain comfort in not having to rush around resetting I/O but instead deal with other
Re: [lpc2000] Re: LPC hardware+software problems
2006-05-01 by Peter Jakacki
... Your statement although allegedly quoting Philips is misleading as it lacks context or reference. You know and I know, as everyone else knows that the
RE: [lpc2000] Re: LPC hardware+software problems
2006-05-01 by Bruce Paterson
... re-initialisation, ... designs ... Jaya, I don t understand your issue. The Philips watchdog can be programmed to either provide an interrupt (your
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... done in ... If your software is in deadlock, and output is in bad state, and you want to set it back, it would take you no more than a few microseconds.
Re: LPC hardware+software problems
2006-05-01 by Eric Engler
... That s a mighty kind way to describe it! In order to fix their website, Philips simply must get engineers more involved with it s design. It s true that
Re: [lpc2000] Re: LPC hardware+software problems
2006-05-01 by Robert Adsett
... I prefer that the device get back to a known good state as soon as possible. Keeping the output in the (possibly bad) state it was in is definitely the
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... I think the jury is still out. I may become clearer in a couple of months when the next silicon iteration hits the market. Jaya
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... to the ... structure ... variants ... Portablity at the instruction set level is the reason cited in many of the comparision charts I have seen for
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... Sorry for the Freudian slip, you are right it is 16-bit. I did not say it had i86 instruction set. The similarity is in the way it addresses memory. Jaya
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
Brendan, ... LPC2: I believe Philips has said its flash runs at 20MHz (or 25MHz I cannot remember). This why I said LPC flash is no faster than SAM. As for
Re: LPC hardware+software problems
2006-05-01 by jayasooriah
... I think you seem to miss my point: that if you find a vendor produces devices that lockup or do not function properly (like the UART in LPC), the costs of
Re: LPC hardware+software problems
2006-04-30 by brendanmurphy37
... general ... Bob, In my experience, the short answer to your question is no , provided you read the data sheet, user manual and errata well and keep
RE: [lpc2000] Re: LPC hardware+software problems
2006-04-30 by Robert Adsett
... I was wondering about that myself. Although both use segmented memory addressing and are 16bit CPUs (only the 8088 and 80188 had an 8 bit external bus as
Re: LPC hardware+software problems
2006-04-30 by bobtransformer
... I was under the impression that the LPC2104/5/6 series were older and possibly buggier than newer parts. I have designed in the LPC2102/3 and the LPC2144
RE: [lpc2000] Re: LPC hardware+software problems
2006-04-30 by Paul Curtis
Jaya, ... Bloody hell. When did the C166 become an 8-bit CPU? All registers on the C166 are 16 bits and so is the data bus. When did the C166 grow an x86
Re: LPC hardware+software problems
2006-04-30 by brendanmurphy37
... You are joking when you say this, aren t you? On a couple of occasions now I ve put forward warnings on aspects of unexpected behaviour with the parts, not
Re: LPC hardware+software problems
2006-04-30 by brendanmurphy37
... maybe ... I think anyone making a claim like this should provide some evidence to back it up. We ve done extensive, comparative benchmarks of the LPC2xxx
Re: Roll Your Own bootloader
2006-04-30 by Danish Ali
Another thing to be aware of is that some of the LPC2xxx claim to have the bootloader in ROM rather than FLASH. Example: LPC2101/2102/2103 - according to the
Re: LPC hardware+software problems
2006-04-30 by brendanmurphy37
... that ... [..AND..] ... recover ... to ... alternatives. [..AND..} ... [..AND..] ... initialisation, ... No need to say the same thing four times: they all
ADC interrupt code
2006-04-30 by sherifkamelzaki
Hi how are u all please i need some help here my code uses the ADC to enter the interrupt it doesn t work #include static int timer0Count,
Re: LPC hardware+software problems
2006-04-30 by jayasooriah
... me it ... claim an ... afford an ... extra ... I have seen digital outputs in parts like digital potentiometers (from Analog Devices) on SPI bus for such
Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by jayasooriah
... I do not see the point in you bringing up HC16 example. Is this to say that bus sizing on all types of reset is a good thing? ... The point I was making
Re: [lpc2000] Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by Robert Adsett
... Um, Jaya I wasn t referring to external bussed units here. The issue of bus sizing is a separate issue from the rest of the watchdog issues. ... Here, I
Re: LPC hardware+software problems
2006-04-30 by jayasooriah
... I do not know what you mean by investigating . I am not studying the LPC for any purpose or anyone. I am simply working on it for clients and post
Re: [lpc2000] Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by Ralph Hempel
Jaya, ... This is not always true an all chip families. In fact, I had an HC16 system that used an external 8 bit wide FLASH for code and config data storage.
Re: [lpc2000] LPC hardware+software problems
2006-04-30 by Ralph Hempel
Jaya, ... With all the negative, posts you making about the LPC series of parts, what is the point of your continued investigation of the part. Some of your
Re: Can LPC213X P1[23:16] act as the D[7:0] to a LCD with 5V supply?
2006-04-30 by unity0724
Umm... I do not know anything about KS0108. But I think your LPC2134 and LCD controller could be trying to drive the bus at the same time. Else it should
Re: [lpc2000] Re: Roll Your Own bootloader
2006-04-30 by Micron Engineering
... Also I am interested to stud about this problem. ... Hmmm... I read carefully software Italy patents laws (I am italian) and they permits reverse
Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by jayasooriah
Earlier I said ... ... Apologies if I misunderstood as to which method you said as better. In addition reasons I gave, I forgot to mention one obvious
Re: Roll Your Own bootloader
2006-04-30 by jayasooriah
Hi Joe, If you are prepared to take responsibilty for your device, and not feel intimidated by Philips advice we do not guarantee your part if you use your
LPC hardware+software problems
2006-04-30 by jayasooriah
... Google comes to the rescue ... have a look at: http://www.sst.com/downloads/app_note/S72027.pdf ... I am not sure what kind of inferences one can draw from
Roll Your Own bootloader
2006-04-30 by phlpcmicro
Hi, Has any one considered rolling their own boot loader for the LPC2000 series? Purpose - so that P0.14 can be released from the POR bootup requirement....
Re: [lpc2000] Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by Tom Walsh
... Yeah, and one or two working prototypes certainly help. heh. I ve been burned in the past by deploying a design, only to find out about 6 years later that
Re: LPC hardware+software problems
2006-04-30 by unity0724
Hi, Mr Jaya, Apologize for my poor english, such that you completely missed my points. Let me re-phrase it to simple questions: I want to switch away from
Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by jayasooriah
... increasing ... Better as ... with. Only ... choosing ... The approach you refer to as better is IMO flawed for the following reason: In the hardware
Re: LPC hardware+software problems
2006-04-30 by jayasooriah
... I did not realise I said this so many times in one post! Must be I was trying to tell the poster something ... :) ... Having already made the selection,
Re: [lpc2000] Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by Robert Adsett
... Hey, you said unprecedented w/o adding any restriction :) Yeah 4 bit stretches it but that was rather the point I was trying to make. However it does
Re: [lpc2000] Re: re : LPC hardware+software problems (was: UART0 interrupts without FIFOs)
2006-04-30 by Robert Adsett
... So the difference would be - Leaves a different signature behind - Leaves the I/O in the state it was, quite possibly increasing the latency to a known
Re: [lpc2000] UART0 interrupts without FIFOs
2006-04-30 by Robert Adsett
... Glad to help Tom, I d like any information I could get on this. Until I know what the underlying cause is I won t be comfortable that I ve completely
Re: LPC hardware+software problems
2006-04-30 by unity0724
I ve seen a lot of move to another processor here. I m trying hard to do that but could not. Since you are the expert, could you find me an alternate ARM7
Can LPC213X P1[23:16] act as the D[7:0] to a LCD with 5V supply?
2006-04-30 by angelazhu_china
I use LPC2134 to control a LCD with 5V voltage supply and KS0108 controller. P0[27:31] act as the five control pins. P1[23:16] act as the date pins. Now I
Re: LPC hardware+software problems
2006-04-30 by jayasooriah
... I would not change my view. I would move on to a processor chip that does not have this type of nastiness. ... If NEC recommends that you needs to use the
Re: LPC2148 and words on odd addresses.
2006-04-29 by brendanmurphy37
... Glad to have been of help, and that you have it working. It really comes down to the extent, size and structure of the software which is the best