Re: [lpc2000] Posting problems
2006-05-04 by Tom Walsh
... IMHO, Yahoo has some really funky stuff going on in their email software. There are messages which sporadically do not get to me that I will see someone
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Re: Powerdown and 3.3V supply
2006-05-03 by Richard
Zdravko, This scheme seems fine although I have run into a snag. When the micro is alseep there is only 1.8V available. The external interrupts are being
Re: Bootloader enhancment: draft of a possible sensible formal request to Philips
2006-05-03 by philips_apps
John, just wanted to acknowledge we got the message and are looking into it. Will provide feedback once it is through internal evaluation. Philips Apps ...
Re: Keil JTAG with Embedded Artists board
2006-05-03 by kristianstad2001
Hi Sutton, Please check with Keil. They have published a patch for their JTAG interface - it has to do with the reset signal. I do not know if this is the
Keil JTAG with Embedded Artists board
2006-05-03 by Sutton Mehaffey
Anyone out there running the combo of Keil s compiler and JTAG with Embedded Artists 2148 board and prototype board? I can and have been using Philips Flash
Re: ssp on LPC2148
2006-05-03 by ghetto_shinobi
... Yes u can use it. I d suggest u to read AN10406(Accesing MMC card using SPI on LPC2000) note from Philips.They use LPC2148 in their example and SPI1 runnig
ssp on LPC2148
2006-05-03 by naderus2000
hi, i need a SPI bus with 15MHZ clock can work for MMC. i see that the SPI0 for lpc2148 is max to 7.5 MHZ(1/8 PLCK) & i see that SSP(SPI1) can clock max PLCK/2
Re: Strange GCC compiler assembler output
2006-05-03 by jayasooriah
Jan, The output you got seems very strange. Which platform are you compiling and with which version of GCC? I suggest you do the equivalent of the following
Re: Strange GCC compiler assembler output
2006-05-03 by brendanmurphy37
Jan, Looking at it again, the declaration is fine. Still a mystery why the compiler loaded the literal twice though, rather than copied from one register to
Re: Strange GCC compiler assembler output
2006-05-03 by brendanmurphy37
... volatile ... it ... Yes, you re correct: volatile tells it to load the specified object each time. The odd thing here though is that it s loading the
Re: Strange GCC compiler assembler output
2006-05-03 by brendanmurphy37
... it s ... The thing that struck me as strange about the comparison is that it s loading one as a byte the other as a word and then comparing. ... Hance my
Re: [lpc2000] Re: Strange GCC compiler assembler output
2006-05-03 by Jan Thogersen
Hi, My declarations is like the following: global: #define T0MR0 (*(volatile unsigned long *)0xE0004018) static uint8 buf_inpos; local inside function:
Re: [lpc2000] Re: Strange GCC compiler assembler output
2006-05-03 by Jan Thogersen
Hi, My declarations is like the following: global: #define T0MR0 (*(volatile unsigned long *)0xE0004018) static uint8 buf_inpos; local inside function:
Re: Strange GCC compiler assembler output
2006-05-03 by jayasooriah
I did a quick experiment that possibly explains what is happening. ... adds ... The logic seems to be that if the constant can be loaded with MOV or MOV plus
Re: [lpc2000] Re: OFFTOPIC: PCB impedance calculation without GND plane
2006-05-03 by Leon Heller
... From: Guillermo Prandi To: Sent: Wednesday, May 03, 2006 2:34 PM Subject: [lpc2000] Re:
Re: [lpc2000] Re: Strange GCC compiler assembler output
2006-05-03 by Ralph Hempel
... The whole sequence might have been even better as: mov r2, #0xE0000000 add r2, r2, #0x00004000 add r2, r2, #0x00000018 mov r3, [r2] add r3, r3, #0x00000001
Re: OFFTOPIC: PCB impedance calculation without GND plane
2006-05-03 by Guillermo Prandi
... plane ... some good ... impedance ... board ... plenty of ... couldn t ... tracks). Any ... describe. ... making it ... ohms with ... glue a ... ohm coax
Re: Strange GCC compiler assembler output
2006-05-03 by brendanmurphy37
Jan, There s certainly something strange going on here. As others have pointed out you can t load a 32-bit literal with the syntax you suggest. It can do done
Re: [lpc2000] Strange GCC compiler assembler output
2006-05-03 by Ralph Hempel
... It s because of the way ARM instructions are encoded. Each instruction is exactly 32 bits long, so there s no way to load a 32 bit constant.
Re: Strange GCC compiler assembler output
2006-05-03 by jayasooriah
Oppps... I should have seen the binary code -- you *are* generating 32-bit code. In this case, I think the compiler decided not to use literal pools for some
Re: [lpc2000] Strange GCC compiler assembler output
2006-05-03 by Dominic Rath
... You can t have an opcode + 32-bit operand when your instruction is only 32-bit wide. Move immediate takes a 12-bit operand, consisting of an 8-bit value
Re: Strange GCC compiler assembler output
2006-05-03 by jayasooriah
... My guess is that you are generating 16-bit code with and compiler is minimising code size. The above three instructions then would occupy three 16-bit
Re: [lpc2000] OFFTOPIC: PCB impedance calculation without GND plane
2006-05-03 by Leon Heller
... From: Guillermo Prandi To: Sent: Wednesday, May 03, 2006 12:50 PM Subject: [lpc2000]
Strange GCC compiler assembler output
2006-05-03 by Jan Thogersen
Hi, Now I m trying to dig into the assembler generation from the GCC compiler and I ve noticed something that I don t quite understand. Here is the dump that
Re: OFFTOPIC: PCB impedance calculation without GND plane
2006-05-03 by Guillermo Prandi
... good ... board ... of ... Any ... Oh, never mind. The price difference between single and double layer is minimal. Thanks anyway. Guille
Olimex LPC-H2214 and LPC2000 flash utility (and IAR EWB)
2006-05-03 by Herbert Larbie
Hi, I have an Olimex LPC-H2214, which I can program using the jtag interface,Wiggler and H-jtag from IAR EWB. But when I try to download a file using LPC2000
OFFTOPIC: PCB impedance calculation without GND plane
2006-05-03 by Guillermo Prandi
Hi. Sorry for the offtopic, guys. If anybody can point me out some good forum/group to post this question, I ll be glad. I need to calculate trace witdh and
Re: Posting problems
2006-05-03 by jayasooriah
... I like to add that I noticed posts by email started lagging behind by up to 24 hours when I switched to web posting a month ago. For the last two or three
Re: I2C on LPC2148
2006-05-03 by rtstofer
... When you send the Start condition, the next thing that should happen is the ending of the Start condition and the beginning of shifting the slave address.
Re: I2C on LPC2148
2006-05-03 by Sutton Mehaffey
Richard, I have reviewed some of the code trying to make sure mine matches as far as registers go. But since most of the sample code says From device to
Re: I2C on LPC2148
2006-05-03 by rtstofer
... philips_apps has posted demo code for two different development platforms but the code itself should work anywhere. See the Files section here and scan
I2C on LPC2148
2006-05-03 by Sutton Mehaffey
I ve still having issues with getting I2C to work. I m not even seeing SCL on my scope. I m using a Embedded Artists prototype board with the 2148 board. If
Re: Bootloader enhancment: draft of a possible sensible formal request to Philip
2006-05-02 by jayasooriah
John, I normally ask that one includes in the requirement only what one wants, not how one wants it done. If you do this, then you are not likely to introduce
Ethernet Bootloader
2006-05-02 by Peter Homann
Hi, Since bootloaders are the hot topic. :-) Can anyone point me to an opensource (Or reasonably priced) ethernet bootloader that I can use on a LPC2138
Re: Bootloader enhancment: draft of a possible sensible formal request to Philips
2006-05-02 by John Heenan
Brendan Number of issues with scheme proposed so far. 1. For parts with an enhanced bootloader, if Philips declared CRP address 0x1FC to be a reserved address
Re: Bootloader enhancment: draft of a possible sensible formal request to Philips
2006-05-02 by brendanmurphy37
John, Interesting idea. Although simple in theory, I think you re actually asking quite a lot of Philips. Just think of all the documentation that would have
Bootloader enhancment: draft of a possible sensible formal request to Philips
2006-05-02 by John Heenan
Below is a draft of a possible sensible formal request we could make to Philips with regard to bootloader enhancement. It is simple and practical. If Philips
Re: Bootloader minor enhancment suggestion
2006-05-02 by John Heenan
You have descended into rambling, confusion and irrelevancy again. I will post a specific copy of a draft to Philips on the newsgroup under a different subject
Re: [lpc2000] Posting problems
2006-05-02 by Leon Heller
... From: Robert Adsett To: Sent: Tuesday, May 02, 2006 5:59 PM Subject: Re: [lpc2000]
Re: [lpc2000] Posting problems
2006-05-02 by Robert Adsett
... Well, my membership dates from Nov, 03. So if that s a factor it can t be the whole reason. On the other hand I ve had a time or two when yahoo had to
Re: [lpc2000] Posting problems
2006-05-02 by Leon Heller
... From: Richard To: Sent: Tuesday, May 02, 2006 5:29 PM Subject: [lpc2000] Posting problems ... This one
Re: [lpc2000] Posting problems
2006-05-02 by Robert Adsett
... Sometimes yahoo takes a while to process mail but that seems unusual. Check your bounce history. They have a habit of kicking me off when my ISP rejects
Re: Real time library from Keil (ARTX)
2006-05-02 by wickedmonster2002
Yes, I was checking it out the other day. At this point, the API for FreeRTOS seems to be a bit more convoluted to my tastes. But then I got sidetracked with
Posting problems
2006-05-02 by Richard
Could anybody offer any suggestions as to why posts from me take 3 to 4 days to turn up on the list? There does not seem to be a simple way of finding the
LPC2220 on PhyTEC phyCORE HD200...Urgent Question.
2006-05-02 by wickedmonster2002
Hello People, Hope you all had good breakfast or for some of you, looking forward to that warm dinner at home. The External Memory Controller on the MCU is set
Re: Boot Sector Diagnostics Tool
2006-05-02 by jayasooriah
... Source code is available but is not free. The binary as-is was developed using EnkOS library and this component is commercial binary-only product. May be
Re: Boot Sector Diagnostics Tool
2006-05-02 by brendanmurphy37
I await further information with interest, though it would be unlikely we d be interested in using it unless it was open source. Our production programming is
Re: Boot Sector Diagnostics Tool
2006-05-02 by jayasooriah
... Have a play with BSDC and you may understand it better. When I find time I will explin more in my page on how it does what it does, and how the full
Re: Bootloader minor enhancment suggestion
2006-05-02 by jayasooriah
John, ATMEL fuse bits relating to boot block size are for purposes of determining the size of the block at the top of memory that is locked down as boot block,
Re: Bootloader minor enhancment suggestion
2006-05-02 by John Heenan
... typically ... of ... No. I guess you don t really get the point. I am not proposing replacing the exising boot loader, just providing an option to opt