RE: [lpc2000] LPC2148 and Fast I/O question
2006-01-01 by Joel Winarske
... Have you considered implementing your interface via PLD (CPLD/FPGA) based state machine? Joel
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Re: Tiny Text Editor For LPC
2006-01-01 by Eric Engler
... I put it here for anyone who wants it: http://www.ericengler.com/downloads/UCSD Apple Pascal - Interp.zip This is mostly on the Apple 6502 flavor. This
Re: [lpc2000] LPC2148 and Fast I/O question
2006-01-01 by mickey mouse
Hi Dominic, Thanks for taking the time to reply. ... I am running my code from the internal SRAM on the LPC2148. My assembly is the same as yours. I have
Re: Tiny Text Editor For LPC
2006-01-01 by Eric Engler
... What was the word size on an 1130, wasn t it 18 bits? Back in 1969 that nust have been state-of-the-art! Maybe 4K words of core? I learned assembler
RE: [lpc2000] Re: Tiny Text Editor For LPC
2006-01-01 by Paul Curtis
Eric, ... I wished I could have an Apple II. However, limited funds meant I was content with an Acorn Atom. ... Please be aware that there are a lot of
Re: Tiny Text Editor For LPC
2006-01-01 by rtstofer
... I think I have it around here somewhere but, if it s convenient, email me a copy. Or post it in the Files section and delete it after I grab it. Either
Re: Tiny Text Editor For LPC
2006-01-01 by Eric Engler
... I love this thread. I was also a fan of the P system, and I used Borland Turbo Pascal and Delphi for years. I ve also used C style languages (most recently
Re: Tiny Text Editor For LPC
2006-01-01 by rtstofer
... Actually, this is a great idea. I have Barron s Pascal - The Language And Its Implementation . This is really a better place to start. I had been
Schmartboard
2006-01-01 by Michael Rubitschka
Hi i just read some of you have experience with schmart boards. When I first heard about them they promised to have the solution for BGA prototyping. When I
Re: Tiny Text Editor For LPC
2006-01-01 by rtstofer
... keyword ... function ... that ... of ... Yes, I remember that. I first ran into Load On Call (LOCAL) with the IBM 1130, my first personal computer, back
Re: [lpc2000] LPC2148 and Fast I/O question
2006-01-01 by Dominic Rath
Hello, ... Yes. ... I don t think your 230ns are too bad. At 58.9 MHz you have 16.98ns per cycle. The smallest loop I could come up with looks like this: loop:
Re: voiding flash (CRP) security
2006-01-01 by jayasooriah
I do not wish to comment on what the T command is there for, except to say it most will be surprised to know what it does, let alone that it exists. I would
Re: [lpc2000] H-JTAG
2006-01-01 by He Twentyone
Hi 1. H-JTAG isn t a open source project. I will not make it open source. 2. Currently, H-JTAG donesn t work with GDB. thx ...
RE: [lpc2000] Re: Tiny Text Editor For LPC
2006-01-01 by Paul Curtis
Hi, ... The p-System had the concept of a segment and even had a SEGMENT keyword for SEGMENT PROCEDURE or SEGMENT FUNCTION -- a procedure or function belonging
Re: LPC2148 and Fast I/O question
2005-12-31 by deliconn
... I recall reading somewhere about the timing in this situation. If I remember correctly, it can potentially be a very broad range of clock cycles (mostly
Re: Tiny Text Editor For LPC
2005-12-31 by rtstofer
... than ... to ... I don t recall the paging but it makes sense. I made the huge mistake of tossing the source and executables after UCSD yanked the
RE: [lpc2000] Re: Tiny Text Editor For LPC
2005-12-31 by Paul Curtis
Hi, ... Ahh, yes, I well remember the p-System. The interpreter was more than 2K of code and remember that it also had to perform disk I/O and paging--it was
Re: Tiny Text Editor For LPC
2005-12-31 by rtstofer
The real project: I always liked UCSD Pascal. I have the original Niklaus Wirth P4 Compiler project including the interpreter. Now, in the UCSD system
RE: [lpc2000] LPC2148 and Fast I/O question
2005-12-31 by Joel Winarske
Hi Vern, ... An interesting experiment might be to compare the response of using an external interrupt pin set as a FIQ. It seems it should be slower than
Re: [lpc2000] Re: Tiny Text Editor For LPC
2005-12-31 by Doug Sutherland
... Well ARM720T with SDRAM surely would be. -- Doug
Re: Tiny Text Editor For LPC
2005-12-31 by Eric Engler
... It seems to me like you may be happier with an ARM9 running eCos or uClinux. Arm7 single-chip controllers just don t seem to be well-suited for this kind
Tiny Text Editor For LPC
2005-12-31 by rtstofer
Has anyone ported or thought about an embedded text editor along the lines of vi? Assume the existence of a file system and a VT? serial display terminal. I
LPC2148 and Fast I/O question
2005-12-31 by deliconn
Sorry if this question has been addressed before. I searched through the messages and didnt see anything. I have decided that I dislike the yahoo group
Re: [lpc2000] Re: Divide by zero
2005-12-31 by Karl Olsen
... From: soren_t_hansen To: Sent: Saturday, December 31, 2005 2:33 PM Subject: [lpc2000] Re: Divide by
Re: Divide by zero
2005-12-31 by soren_t_hansen
... divisions ... unsigned ... gcc. If ... default ... I m using the GNUARM toolchain. Does that mean that a divide by zero doesn t result in anything?
Re: [lpc2000] Divide by zero
2005-12-31 by Karl Olsen
... From: soren_t_hansen To: Sent: Saturday, December 31, 2005 12:12 PM Subject: [lpc2000] Divide by zero
Re: [lpc2000] Divide by zero
2005-12-31 by Richard Duits
The ARM7TDMI does not have a divide instruction, so this is depending on the implementation of your compilers run time library. Richard.
Divide by zero
2005-12-31 by soren_t_hansen
What happenes if you make a division by zero on the LPC2132? I suspect that you enter the Undefined Instruction exception handler, but is that correct? I
Re: Soldering LPC2148
2005-12-31 by deliconn
... precisely to avoid None taken, I didnt mention it to directly counter the hoof tip statement in that way. I meant it in that, to do the job, you dont need
Re: Soldering LPC2148
2005-12-31 by mahbub1833
I am using schmartboard for last 2 months and its technology is a bit interesting. You can make a full prototype board joining their 2 x2 boards all together.
Re: [lpc2000] MSP430 Lower Power?
2005-12-31 by Mr shyam_Gopal Mishra
yes i m fully agried with mr mukadder .....its true msp430 series is the ideally targeted for lowpower & battery driven applications..... rgds Shyam ...
What is ERROR encounted in table of LUT of CAN module?
2005-12-31 by pjm_sample
I have read the User Manual of LPC2292 for many times. But I have not get a clear explaination about the ERROR encounted in LUT. In order to generate this kind
Re: [lpc2000] Re: LPC2294 Port 0.2 problem
2005-12-31 by Peter Jakacki
These pins do not have any source transistors, they are strictly open-drain output or an input. Changing P0.2 & P0.3 to GPIO will not connect source
Re: LPC2294 Port 0.2 problem
2005-12-31 by mahbub1833
Yes, P0.2 and P0.3 are I2C pins. But my question is when I enable the pins as GPIO (in IAR by PINSEL0_bit.P0_2 = 0x00; and PINSEL0_bit.P0_0 = 0x00 ;), then the
Re: [lpc2000] Re: Soldering LPC2148
2005-12-31 by Don Ingram
... No offence intended but the reason why we use concave tips is precisely to avoid the following... ... Repeatedly re-heating the joint to do clean up tasks
Re: Soldering LPC2148
2005-12-31 by deliconn
I always wanted to try SMD for the longest time but was always afraid to even attempt it. I knew there was no way I would be able to hand solder them, and the
RE: [lpc2000] Soldering LPC2148
2005-12-31 by Joel Winarske
I just watched a drag soldering instructional video. It involved applying liquid flux to the unsoldered joints, then taking a smaller chisel style tip,
RE: [lpc2000] Soldering LPC2148
2005-12-31 by Joel Winarske
... My paste solder experience is somewhat limited, though I have 20 years experience with the core solder. I ll look into the drag technique. Joel
Re: [lpc2000] Soldering LPC2148
2005-12-30 by Don Ingram
If you run with Leon s suggestion this is not an issue. Most of the manufacturers have drag tips & with a bit of practice these make .5mm QFP s a doddle.
RE: [lpc2000] Soldering LPC2148
2005-12-30 by Joel Winarske
... Use a de-soldering braid to remove any excess solder, and depending on the type of solder you use don t be shy with the liquid flux. Joel
Re: [lpc2000] Soldering LPC2148
2005-12-30 by Leon Heller
... From: bigakisgr To: Sent: Friday, December 30, 2005 10:07 PM Subject: [lpc2000] Soldering LPC2148 ...
Re: [lpc2000] Soldering LPC2148
2005-12-30 by Tom Walsh
... I agree, you can hand solder 0.5mm but it is tough to keep from getting solder bridges between pins, or the absolute worst is when you get a bridge
Re: [lpc2000] Soldering LPC2148
2005-12-30 by Sean
Those look pretty neat and easy, but really it s not a tough task soldering .5mm QFP on your own. For any surface mount components it s extremely useful to
Re: [lpc2000] MSP430 Lower Power?
2005-12-30 by mucko
Hi,, MSP430 family has really good at lower power modes,.I have experinced with this family and used msp430f4xx family of controllers in a metering application
Soldering LPC2148
2005-12-30 by bigakisgr
I have a couple of LPC2148, thanks to EXCELLENT Phillips sample program. I don t want to build a specific project right now, so i prefer to solder them to a
Re: External Interrrupts, Rowley Crossworks
2005-12-30 by bigakisgr
Maybe you must define VECTORED_IRQ_INTERRUPTS in the preprocessor defininition screen. Then in your code, after initialization, (before the endless for loop on
Re: [lpc2000] LPC2294 Port 0.2 problem
2005-12-30 by Tom Walsh
... Probably giving us some parametric & specific information on: * What is supply voltage on the other side of the LED (5v, 3.3v, 1.8v)? * What is the
Re: [lpc2000] LPC2294 Port 0.2 problem
2005-12-30 by Richard Duits
If I remeber correctly (don t have all the docs here right now), those are I2C pins. These pins need pullup resistors because they can only pull down a pin to
RE: [lpc2000] Re: MSP430 Lower Power?
2005-12-30 by Joel Winarske
... Yes thanks for the correction. I copied direct from pdf into Word, without confirming the pasted data. Corrected Table: LPC213x data sheet excerpt: IBAT
Re: MSP430 Lower Power?
2005-12-30 by lpc2100_fan
Hi, the difference is that 60-70 uAs is power down, keeping all the information of the registers and 32k SRAM intact while the lower values is RTC only from