SPI / SD initialization sequence - my way
2005-10-17 by Peter Jakacki
I ve had a few queries in regards to SD card initialization in SPI mode. For anyone who is interested I have included a dump of the SPI activity during an
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Re: SPI Interrupt not firing?
2005-10-17 by Guillermo Prandi
I m a newbie, so don t take my comment too seriously, but... why are you disabling SPIE interrupts in your enqueue function? Couldn t this adversedly affect
Re: How do interrupts work?
2005-10-16 by Guillermo Prandi
Good advice, Richard. I ll take it. Thanks. ... that you ... buffer a ... UART ... you ... much ... delay ... called a ... my ... handler) ... the ... the ...
Re: [lpc2000] Re: How do interrupts work?
2005-10-16 by Richard Duits
It s almost impossible to miss an interrupt. Your only worry is that you respond to the interrupt in time. For example the UART can only buffer a number of
Re[2]: [lpc2000] Processor won't run without JTAG interface
2005-10-16 by rob@usbmicro.com
Robert, ... This is what I do. The vector table for the processor (The first 32 bytes of memory) normally has branches to the routines. Since routine addresses
Using Keil development. env. with GNU-ARM
2005-10-16 by Mukadder Ceyhan
Hi everbody! Have Anybody tried to use GNU-ARM toolset with Keil ARM development toolset.Does this need a permanent license? Any tutorial will be helpful! And
Re: [lpc2000] Processor won't run without JTAG interface
2005-10-16 by Robert Wood
... Hmmm, yes. That was it. I went back to one I d commented out for some reason. I don t understand this checksum business or why it s there. The datasheet
RE: [lpc2000] Processor won't run without JTAG interface
2005-10-16 by Paul Curtis
Hi Robert, ... Nothing like online support on a Sunday eveinging... -- Paul Curtis, Rowley Associates Ltd http://www.rowley.co.uk CrossWorks for MSP430, ARM,
Processor won't run without JTAG interface
2005-10-16 by Robert Wood
Hi folks, I have some code in an LPC2194 which runs fine with the JTAG interface plugged in (using Crossworks if that s relevant). However, if I unplug the
Re: How do interrupts work?
2005-10-16 by Guillermo Prandi
Thanks, Sten. In fact, I was reading the errata when all these questions came to my mind. :) I think I got it now. Guille ... only ... still ... hold ... until
RE: [lpc2000] Processor won't run without JTAG interface
2005-10-16 by Paul Curtis
The checksum? -- Paul Curtis, Rowley Associates Ltd http://www.rowley.co.uk CrossWorks for MSP430, ARM, AVR and now MAXQ processors
Re: [lpc2000] Re: How do interrupts work?
2005-10-16 by Sten
Hello Guille, In generall you can t miss an interrupt because interrupt flags can only be reseted if the interrupt condition has been satisfied. If you still
Re: How do interrupts work?
2005-10-16 by Guillermo Prandi
Thanks, Richard. So, if I understand correctly, if I don t clear the interrupts in my interrupt handler (or a new interrupt happens while at the handler) the
Re: [lpc2000] LPC2000 Flash Utility Coms Ports > 5
2005-10-16 by Sten
... Hi, debugging under Linux is a little bit tricky. With a friend of mine (www.section5.ch) we are working on a low-cost version of a JTAG debugger working
Re: [lpc2000] How do interrupts work?
2005-10-16 by Richard Duits
With everything that generates an interrupt, you have to clear the interrupt by reading or writing to a register. For example with the UART you clear a data
Re: [lpc2000] LPC2106 & CS8900A -- delay needed in Rd/Wr?
2005-10-16 by Richard Duits
I had similar experiences with GPIO and the external memory controller on a LPC2292. I found out that in this case, it is possible for a read to start on the
How do interrupts work?
2005-10-16 by Guillermo Prandi
Hi! I read every doc I ve found and I couldn t get a detailed description of the interrupt mechanism in the LPC2XXX. In particular, I m looking for the
LPC2106 & CS8900A -- delay needed in Rd/Wr?
2005-10-16 by Michael Anburaj
Hi, I have got the CS8900A talking to the LPC2106 in 8bit mode. Strange things are happening Without any delay (without additional delay added in code) in the
Re: LPC2106 Electrical & Timing Specs
2005-10-16 by Karl Olsen
... See the datasheet. http://www.semiconductors.philips.com/pip/LPC2106.html Karl Olsen
Re: LPC2106 Electrical & Timing Specs
2005-10-16 by rtstofer
... into... :-/ ... I m messing around with the 3 millionth design of an MP3 player and mine won t be anything special. Using CF is costing me 17 pins; no
Re: [lpc2000] Re: LPC2106 Electrical & Timing Specs
2005-10-16 by Tom Walsh
... Yeah, but you ll loose the RAM. Maybe take a harder look at SPI hardware, that SPI bus is fast! My application I need the RAM plus lots of Flash, result
Re: LPC2106 Electrical & Timing Specs
2005-10-16 by rtstofer
... ARM, so ... Yes, I have that ARM document. I also found a different document that contains the various electrical and timing specs. I m all set... I
RE: [lpc2000] LPC2000 Flash Utility Coms Ports > 5
2005-10-16 by FabioDB
Hi Sten, I have seen your nanoRTOS (http://www.net-attack.de/products/nanortos/2.0/) and I have a question about debugging: how have you debugged this OS (or
Re: [lpc2000] Re: LPC2106 Electrical & Timing Specs
2005-10-16 by Richard Duits
All info about the core (ARM7TDMI in this case) is documented by ARM, so you should take a look on www.arm.com. RD
Re: [lpc2000] Re: LPC2106 Electrical & Timing Specs
2005-10-16 by Tom Walsh
... Thank you, I did not realize that the TDMI core differed that much from the regular core. TomW -- Tom Walsh - WN3L - Embedded Systems Consultant
Re: [lpc2000] Newbie problem : Connecting LPC2214 to Segger J-Link
2005-10-15 by Tom Walsh
... Usually, I use two X-acto knife blades as probes to my Ohm-meter, then carefully buzz out the connections. It is easy to have a surface mount pad not
Re: [lpc2000] Newbie problem : Connecting LPC2214 to Segger J-Link
2005-10-15 by Simon Ansley
Tom, ... connected ... the Synchronized ... Many thanks, I ve found the relevant bit in the manual, made up a cable and tried that. Glad I d hung a 232
Re: LPC2106 Electrical & Timing Specs
2005-10-15 by Karl Olsen
... Actually, the ARM7TDMI-S is not that modern, and it is not that difficult to calculate the instruction timings. See
Re: [lpc2000] SSP on IAR LPC2148 KS
2005-10-15 by joelw@indyelectronics.com
I just love it when you find the answer the moment after you click send!
SSP on IAR LPC2148 KS
2005-10-15 by joelw@indyelectronics.com
I have a IAR LPC2148 board and am having trouble getting any output on the SSP port. I can wiggle the SPI0 port just fine. No dice on the SSP port. Once data
Re: [lpc2000] Re: LPC2106 Electrical & Timing Specs
2005-10-15 by Tom Walsh
... Cool! I do see it has some nice performance at 59MHz. Well beyond the 14MHz 8051 this board is replacing.. Of course, now that I have more Flash, I
Re: LPC2106 Electrical & Timing Specs
2005-10-15 by lpc2100_fan
Tom, great contribution! It is indeed difficult to count cycles for instructions in the ARM. Nevertheless, the LPC2000 family does not use a cache. The
Re: [lpc2000] Newbie problem : Connecting LPC2214 to Segger J-Link
2005-10-15 by Tom Walsh
... I just brought up a new design using LPC2106 and LPC2138 processors. The first thing that I did was to see if they were alive . I connected to them via
Re: LPC2106 Electrical & Timing Specs
2005-10-15 by lpc2100_fan
... Richard, the timing specs are in the Data Sheet but this does not include pin toggeling speeds. The LPC2106 can toggle with approx. 4 MHz at full speed.
Re: [lpc2000] LPC2106 Electrical & Timing Specs
2005-10-15 by Tom Walsh
... That is something that is hard to quantify on a pipelined processor. This could predicted while using a simple CPU like a 68HC11 or 8051 processor. Those
Re: [lpc2000] LPC2106 Electrical & Timing Specs
2005-10-15 by Leon Heller
... From: rtstofer To: Sent: Saturday, October 15, 2005 7:41 PM Subject: [lpc2000] LPC2106 Electrical &
Re: [lpc2000] LPC2106 Electrical & Timing Specs
2005-10-15 by Robert Adsett
... See http://www.open-research.org.uk/ARMuC/index.cgi?LPC2100Tips It has pointers to early measurements of the pin toggling and an explanation from Philips.
LPC2106 Electrical & Timing Specs
2005-10-15 by rtstofer
I have spent literally hours searching the Philips web site for documentation other than the User Manual for the LPC2106 and a few app notes. Is there a
RE: [lpc2000] Newbie problem : Connecting LPC2214 to Segger J-Link
2005-10-15 by Michael Rubitschka
Hi I had a simmilar Problem when I built my Jtag clone for the AVR. The Problem was I forgot to power up the processor. I your case somethin simmilar must be
RE: [??????????????][lpc2000] IAR and UCOS-ii
2005-10-15 by Paul Curtis
Such an eloquent amateur thief. -- Paul Curtis, Rowley Associates Ltd http://www.rowley.co.uk CrossWorks for MSP430, ARM, AVR and now MAXQ processors
Newbie problem : Connecting LPC2214 to Segger J-Link
2005-10-15 by Simon Ansley
Hello, I m trying to get a new PCB up and running using an LPC2214, but cannot get the chip to talk to the JTAG port. I m fairly new to both the processor, and
Re: [??????????????][lpc2000] IAR and UCOS-ii
2005-10-15 by LEO
Send it for moderator and fock you ..... ... From: 42Bastian Schick To: Sent: Friday, October 14, 2005 5:08
Re: »Ø¸´£º RE: [lpc2000] LPC2000 Flash Utility Coms Ports > 5
2005-10-15 by Sten
... Ooops! Fixed. Thank you. -- /************************************************ Do you need a tiny and efficient real time operating system (RTOS) with a
Re: »Ø¸´£º RE: [lpc2000] LPC2000 Flash Utility Coms Ports > 5
2005-10-15 by Eric Engler
... The download links don t work?
Synchronising timer output and assembly code
2005-10-15 by conhalk
Hello, I am using the lpc2138 and i read an external port while a timer and the PWM output two waveforms like this timer: _ _ _ _ _| |_| |_| |_| |_| pwm:
Re: [??????????????][lpc2000] IAR and UCOS-ii
2005-10-14 by Mike Nelson
And it would be foolish to think it is not being monitored by IAR. ... __________________________________ Yahoo! Mail - PC Magazine Editors Choice 2005
Re: SPI Interrupt not firing?
2005-10-14 by ee_gary
... I d be interested in the newlib_lpc SPI module as well (interrupt driven, of couse). Thanks, Gary
Re: [??????????????][lpc2000] IAR and UCOS-ii
2005-10-14 by 42Bastian Schick
... If you need crack, ask first your local dealer. Ah, and please leave this list. -- 42Bastian Schick
Re: 回复： RE: [lpc2000] LPC2000 Flash Ut ility Coms Ports > 5
2005-10-14 by Sten
Hi, if you are running Linux try lpcflash4linux. http://www.net-attack.de/?p=lpcflash&l=en It is also a easy to use command line tool for Linux. Sten ... --
Re: [??????????????][lpc2000] IAR and UCOS-ii
2005-10-14 by Michael Rubitschka
Guys are you serious ??? This is NOT a crack share list. Cheers