Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-11 by Martin Maurer
Try http://alumnus.caltech.edu/~pje/rdcf2.txt It works ! Regards, Martin ... From: Bogdan Teodorescu To:
Messages
Browse messages
Page 122 of 329 · 16407 messages matched
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-11 by Bogdan Teodorescu
Hello, I am not able to open http://alumnus.caltech.edu/~pje/rdcf2.txt` Does anybody knows were to find those files ? Thanks Bogdan ... From: rtstofer
Re: [lpc2000] Is LPC2138 UART levels OK for a 5V part?
2005-11-11 by Martin Maurer
Can you upload the code ? Thanks ! Regards, Martin ... From: Ake Hedman, eurosource To: Sent: Thursday,
UART-like USB soft for LPC214*
2005-11-11 by varuzhandanielyan
Does there exist free or cheap software to run the LPC2148 USB without digging deeply into the USB protocol details? The best example is the FTDIchip approach,
Re: [lpc2000] Re: fixed address variable
2005-11-11 by Robert Adsett
... I suspect the one word answer is aliasing. You have two pointers a and ss pointing to the same area and the value read from dereferencing a at the line
Re: [lpc2000] Re: New to microprocessor
2005-11-11 by David Hawkins
... But the board has to be doing I/O of some sort, otherwise its kind of a waste :) If you have a schematic of your board, then you can always configure an
Re: New to microprocessor
2005-11-11 by Eric
... Thanks for your reply. I m not using an evaluation board, probably I won t have any LED :p
Choice of External Frequency
2005-11-11 by seangra
Assuming that I want to be able run at maximum speed, what oscillator/crystal should I choose? Normally the choice is dictated by the divider for the UART, but
Re: [lpc2000] FreeRTOS on LPC2138
2005-11-11 by Peter Homann
Tom, You are correct. Thanks. Cheers, peter ... -- ... Web: www.homanndesigns.com email: homann@homanndesigns.com Phone: +61 421 601 665
Re: [lpc2000] FreeRTOS on LPC2138
2005-11-11 by Tom Walsh
... Never assume, It is close enough to get you started though. You may have a file like LPC21xx.h, that is closer in some regards to LPC2138, you will still
Re: [lpc2000] FreeRTOS on LPC2138
2005-11-11 by Peter Homann
Hi Richard, Thanks for the help. Am I correct in assuming that the GNU ARM header file lpc210x.h is the correct header file for the lpc2138? Cheers, Peter. ...
Re: unsigned long versus unsigned int on ARM7
2005-11-11 by rtstofer
... Motorola ... bits. To ... to ... 16bits), ... types ... is the ... int32_t. ... be ... 24bit ... like COUNTER and ... as ... Yes, as I get further into
RE: [lpc2000] unsigned long versus unsigned int on ARM7
2005-11-11 by Bruce Paterson
... Or even less obvious the 24bit gnu based C compiler for the Motorola series of DSP s (5600x), char, short, int and long were all 24 bits. To make things
Re: [lpc2000] Re: unsigned long versus unsigned int on ARM7
2005-11-10 by Clyde Stubbs
... Read this carefully - what it says is that IF there are two types with different precisions, then the one with less precision must have the lower rank - it
Re: Cheap SD Flash File System
2005-11-10 by rtstofer
... byte, you ... I don t think so. If you deallocate at that point, you can never recover the file and an entire aftermarket software industry would crash
Fw: [lpc2000] Re: Uart receive timeout Interrupt?
2005-11-10 by rtstofer
... working. ... screw ... #UM10120, ... Yes, the LPC2106 User Manual states that the unlock command will allow the boot block to be overwritten. Richard
Re: Timer Interrupt on Crossworks
2005-11-10 by rtstofer
... 0xFF; ... I have Timer0 interrupt 2000 times per second using a prescale of 2 and a count of 14400. Besides toggling an LED, it increments a tick counter
Re: fixed address variable
2005-11-10 by derbaier
... located at ... OOPS! Sorry that I just looked at your question without refering to the code that you were asking about! Now I am at a loss for an
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Sten
Thanks to all! This sounds good, but what about Richard s problem concerning file names which are not 8.3 compliant? Is there a problem with this docs? Sten
Re: [lpc2000] Re: fixed address variable
2005-11-10 by Sten
... Yes, but it look like that this byte is write-once. I can t see any mistake too. Sten -- /************************************************ Do you need a
Re: [lpc2000] TCP/IP stack + RTOS for LPC213x ?
2005-11-10 by Bill Knight
... Marko I believe MicroChip has a stack for the ENC28J60 available for no cost as long as it is used exclusively with their part. Another thing to remember
TCP/IP stack + RTOS for LPC213x ?
2005-11-10 by Marko Panger
Hi, I am about to start a project which will require ethernet connection and I am kindly asking you for some advices on the following topics: 1) On the HW
Re: [lpc2000] Is LPC2138 UART levels OK for a 5V part?
2005-11-10 by Ake Hedman, eurosource
Not my business but why use the DS-2480? Its code available for 1-Wire/LPC that works perfectly with the use of one pin and a pull up resistor. Send you a
Re: Timer Interrupt on Crossworks
2005-11-10 by mhaines4102
Well this is what I have now and it is working: /* Timer 0 interrupt is an IRQ interrupt */ VICIntSelect &= ~(0x10); /* Enable timer 0 interrupt */
RE: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Dan Beadle
When you delete an entry in the DIR by writing E5 to the first byte, you must first deallocate all used sectors. (If you don t, you have to old DOS problem of
Re: Is LPC2138 UART levels OK for a 5V part?
2005-11-10 by seangra
Sorry, my bad! 2.7V seems a lot more reasonable for input level. So yes, it should work without a buffer! ... the DC ... from the ... high ... good info ...
Re: [lpc2000] Timer Interrupt on Crossworks
2005-11-10 by Karl Olsen
... From: mhaines4102 To: Sent: Thursday, November 10, 2005 9:40 PM Subject: [lpc2000] Timer Interrupt on
Re: [lpc2000] Re: unsigned long versus unsigned int on ARM7
2005-11-10 by Richard
... Richard, I don t recall whether they use the same language for C86/C89/etc. or not, but my reading of your excerpt is that your interpretation is
Re: Is LPC2138 UART levels OK for a 5V part?
2005-11-10 by derbaier
The 3.4V logic high minimum seems to be on the 1-wire side of the interface. The UART side looks like it has the usual 2.7V minimum logic high. In that case,
[lpc2000] Re: Is LPC2138 UART levels OK for a 5V part?
2005-11-10 by Karl Olsen
... From: seangra To: Sent: Thursday, November 10, 2005 9:11 PM Subject: [lpc2000] Re: Is LPC2138
Fw: [lpc2000] Re: Uart receive timeout Interrupt?
2005-11-10 by Karl Olsen
... From: Tom Walsh To: Sent: Thursday, November 10, 2005 3:27 AM Subject: Re: [lpc2000] Re: Uart receive
Timer Interrupt on Crossworks
2005-11-10 by mhaines4102
I have a dumb question. I am embarrassed to ask but... I am using a timer interrupt. My setup is as follows: /* Timer 0 interrupt is an IRQ interrupt */
Re: fixed address variable
2005-11-10 by derbaier
... For one thing, you can have external RAM there on an LPC2292. I have an Embest card set up that way. -- Dave
Re: Cheap SD Flash File System
2005-11-10 by rtstofer
... (And ... I just ported the FAT32 file system stuff from WinAVR to ARM. I used both of the references above and, at the moment, I can read and follow the
Re: Is LPC2138 UART levels OK for a 5V part?
2005-11-10 by seangra
Short answer, NO. For any electrical part you can look in the schematics, find the DC ELECTRICAL CHARACTERISTICS section, and check the INPUT HIGH VOLTAGE .
[lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Bill Knight
... RDCF2 was written back in 1993 and I used portions of it in 2002 so if any code liberation was done... I just rechecked my code and the original code is
Is LPC2138 UART levels OK for a 5V part?
2005-11-10 by fredrikssonjohan
Hi! Sorry if this is a stupid question, but I haven t found any good info about the UART levels so I better ask! Need to connect a LPC2138 to a Maxim (Dallas)
LPC214x current requirements
2005-11-10 by seangra
Anyone have any updated information on the current requirements for the LPC214x devices? It s crazy that they ve been selling the devices for 2 months now,
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Tom Walsh
... Still, from looking over that code it appears to be a complete implementation of a FAT filesystem layer. Heh, some of that code looks suspiciously like
bit order issues in EmbeddedICE
2005-11-10 by Bhanu Nagendra Pisupati
Hello, I would like to clarify the byte order semantics in using the EmbeddedICE block in lpc parts. Specifically, my question relates to writing to the debug
RE: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Joel Winarske
... Also: http://www.microsoft.com/whdc/system/platform/firmware/fatgen.mspx Joel
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Tom Walsh
... http://alumnus.caltech.edu/~pje/dosfiles.html -- Tom Walsh - WN3L - Embedded Systems Consultant http://openhardware.net, http://cyberiansoftware.com
RE: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Joel Winarske
... http://www.ntfs.com/fat-systems.htm Joel
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Tom Walsh
... Legacy, you will find that
Re: Cheap SD Flash File System
2005-11-10 by seangra
Why would anyone want to use FAT12 on an SD card that s larger than 16 or 32MB anyway? FAT-12 was great for floppy disks, to save that few dozen KB on the FAT
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Sten
... Hello, does somebody have some good documentations about FAT12/16/32? (And would share it?) ;-) Sten -- /************************************************
Re: [lpc2000] Re: fixed address variable
2005-11-10 by Sten
... Mmmmh... It looks strange. What kind of hardware or memory is located at 0x81000000? Sten -- /************************************************ Do you need
Re: [lpc2000] A/D converter: a conversion is never completed
2005-11-10 by Tom Walsh
... This is my ADC routines on the LPC2138: ============ begin setup =============== void initADC(void) { // setup converter to run continuously. // connect
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Tom Walsh
... Yeah, there is that too. IIRC, something like JFFS addresses that, sector wear distribution. On some CF devices, that is built into them, each time you
Re: [lpc2000] Re: Cheap SD Flash File System
2005-11-10 by Tom Walsh
... Thank you for the URL! TomW -- Tom Walsh - WN3L - Embedded Systems Consultant http://openhardware.net, http://cyberiansoftware.com Windows? No thanks, I