... My problem is that my SPI interrupt is to slow. I need the SPI transfers to be aligned shoulder to shoulder. But the internal structure of the ARM is...
Hi all, My project is stuck cause my GPS receiver is just not responding. Does anyone have any clue as to where I can buy an alternate one, in India.... Also,...
Hi all, I'm playing with the uart fifo's on the LPC2148 and I have some problems getting the receiver buffer timeout interrupt to work. When I disable the fifo...
... If you operate RTC at 32Khz minimum period will be 1 sec only. To get smaller period you have to increase clock. Best Regards, Mukund Deshmukh. Beta...
Mukund Deshmukh
betacomp_ngp@...
Sep 1, 2006 10:45 am
18966
... the pin. ... problem. ... in plain English. ... I don't agree with you: I know that P0.31 is an output only pin, but it doesn't mean that I can't read the...
Jan I've been using this for quite some time, with no problems. Here is the init code snippet: // Clear and enable FIFO, trig level 8 *(po->Ubase + FCR) =...
... Do you mean byte alignment? ... Sounds like there is a lock within the interrupt. It would not been the alignment issue. ... Yes you can but it is not wise...
... 40yahoogroups.com>, ... speed ... speed ... transfers ... the ... empty ... to ... transfer ... in ... I think you need to get a better handle on what's...
... I'm with Brendan. I suspect your problem has to do with issues other than execution time. You can add a bit toggle to get a rough measurement of how long...
... Another suggestion. Write a q&d dirty poled SPI routine and see what your inter-byte delays are. That will be easier to measure and faster than an ...
This is what I am doing... typedef struct { int frog; int blat[2]; char rat[16]; U16 drive[2]; }Romc; Romc as; as.frog = 1; as.rat[10] = 5; These are the...
Let's say you better know what the status of that pin is ;-) as YOUR software is responsible for the high or low when it is used as an output. I agree with...
I trusted the documentation that P1.25 could be used as EXTIN0, but now as I need it, I do not find any hint about how to configure the pin as EXTINT0. Do I...
Is there anyone out there that has implemented a SD card as a file server/manager? I'm reading and writing to my SD card OK, but now want to implement some...
... I think you are not quite right. Please consider, I don't want to get any interrupts by the RTC. I just want to get the time between two events, calculated...
... Hash: SHA1 ... Please be more specific about your problem. This looks more like a general C coding problem (sorry if I'm wrong) rather than a LPC2xxx ...
... Then why don't you just read one of the other timer count register, instead of using the RTC? It is easy to calculate the time from any free-running...
I am presently using Eclipse IDE for development of LPC code, mainly because of Jim Lynchs excellent tutorial. I am finding it a bit cumbersome and the...
Hi all, I have a software fifo that is being filled up by my main loop and then grabbed by an interrupts routine (TMR0). When entering the function that pushes...
... Locate these in a function: as.frog = 1; as.rat[10] = 5; Below is food for thought. Run in simulator, and step through watching 'as'. #define U16...
... Thanks everyone the all the answers. I found my the issues causing my slow SPI transfer. My interrupt priority was wrong and I made some optimizations to...
Hi, everyone! I'm going to write SPI driver for LPC2214 to support external SPI-driven flash. Does that driver alredy exist? I've looked for in eCos repository...
WinARM is pretty much the GNUARM toolchain compiled natively onto windows so you don't need to setup cygwin or use a linux box. But you still end up with the...
One advantage to setting up Eclipse: it operates the same whether running on Windows or Linux. I use exactly the same toolchain (GNU/Linux or GNU/cygwin)...
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