Re: [lpc2000] Posting problems
2006-05-05 by Robert Adsett
... Or maybe not, the last 1/2 dozen or so posts haven t shown up in my e-mail at all. I though things had gone rather quiet ;) Now we ll see if it s only
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Re: [lpc2000] Re: I2C question
2006-05-05 by Alex Butler
IOn that system I think only one of the I2C buses has pullups fitted - the other doesn t. Just checking you re not using the second I2C bus on the proto
Re: [lpc2000] Re: Powerdown and 3.3V supply
2006-05-05 by 3gpabko
@Richard My case is very simple couse I have only one EINT wich wakes up the MCU. In PowerDown on this pin(EINT) there is only 1.8V through a schottky diode.
CRC calculation
2006-05-05 by guilherme_ferraz
Well, I downloaded an application on IAR website, about checksum (Checksum_ARM_430A.zip) and after compile, I debugged it on RAM memory and flash memory using
Re: [lpc2000] Good C code
2006-05-05 by vineet jain
Hi, To put simply: Say for example: unsigned int *ram_ptr = ( unsigned int * ) 0x000000F0; So, to store something at this address you would write something
LPC-H2214 and SPI woes
2006-05-05 by Herbert Larbie
Hi, I am a newbie experimenting with an Olimex LPC-H2214 and SPI, I am using the code for SPI shown in the Phillips application note amended. I attach a
Re: Good C code
2006-05-05 by brendanmurphy37
Hi, There s two things going on here. 1. INT32U is being used as a short-hand for unsigned int . There are two reasons I can think for defining this: (a) its
Good C code
2006-05-05 by jk jlkj
Hi Friends, Did anyone came accross such a code. INT32U is unsigned int. #define BSP_UNDEF_INSTRUCTION_VECTOR_ADDR (*(INT32U *)0x00000004L) I really think
Re: [lpc2000] Abort exception
2006-05-05 by vineet jain
Hi, In the abort exception handler, put a breakpoint. Run your code, when the exception occurs, it should stop at the breakpoint. Then monitor the value of
Re: [lpc2000] Re: Strange GCC compiler assembler output
2006-05-05 by 42Bastian Schick
... An ldr rn,[pc,#n] (which is the real opcode behind ldr rn,= ) might have some pipeline stalls longer than the 3 mov instructions. Would be
Re: [lpc2000] Re: USB Controllers
2006-05-05 by Peter Jakacki
... Since I have been using the CP2102 for some time with excellent results I am taken aback with your confusing statement as I am not aware of any problems.
Re: I2C question
2006-05-05 by derbaier
That is a pretty ambitious speed for an untried hardware and software combination! It may be prudent to drop the speed an order of magnitude temporarily for
Re: USB Controllers
2006-05-05 by jayasooriah
... Yes it works as well. The latest (and cheapest) R version does not require external crystal or EEPROM. Plus it also supplies clock to external devices,
Re: [lpc2000] Re: USB Controllers
2006-05-05 by Boris Králik
My friend told to me, this chip have bag, please expolore sheets (errarta, new review) a reweievs before use it. ... -- Software is like sex, it s better when
Re: USB Controllers
2006-05-04 by Richard
I reccomend the CP2102 (Silicon Labs). No crystal, built in 3V regualtor, POR, good utilities and support. It also has the EEPROM built in. Rich
Re: I2C question
2006-05-04 by Sutton Mehaffey
120kB What bit rate are you running the I2C bus at? ... bus.
Re: I2C question
2006-05-04 by derbaier
... What bit rate are you running the I2C bus at? The open drain I2C bus speed capability depends on the size of the pull up resistors on the bus, since they
New portal for ARM developers
2006-05-04 by Ake Hedman. YAP
http://www.sevensandnines.com/ Cheers /Ake -- ... Ake Hedman (YAP - Yet Another Programmer) eurosource, Brattbergavagen 17, 820 50 LOS, Sweden Phone: (46) 657
Re: USB Controllers
2006-05-04 by bell_c_d
... I ve used the FTDI FT245BM (parallel version of FT232). It was a no- brainer on both the LPC and PC (windows) side. I assume the FT232 works just as
Re: I2C question
2006-05-04 by Sutton Mehaffey
Yes. I m using the Embedded Artists 2148 Demo board, in which the schematic shows pullups. I m connecting a RAM chip via their accessory prototype board,
USB Controllers
2006-05-04 by wickedmonster2002
Hello People, I was wondering if anybody has experience in using USB Peripheral Controllers such as MAX3420E or an FT232BM. I really dont want to write a
Re: I2C question
2006-05-04 by Dezheng Tang
Do you have pull-ups on SCK and SDA lines? ... understand ... to ... RAM ... the ... slave ... Or,
Re: I2C question
2006-05-04 by Sutton Mehaffey
Richard, In my code (that doesn t work yet), I am not using an interrupt. But, constantly polling the SI bit. Is this not a valid way to do it? If not, that
Re: I2C question
2006-05-04 by rtstofer
Rather than using external gates to trigger the scope, it may be just as easy to use a spare IO pin and set it when the Start condition is set by
Re: Device programming (manufacturing / production)
2006-05-04 by shergtu
Thanks to everyone for their replies regarding programming the LPC214x during production. Very helpful information from all of you. Best Regards, Dan
Re: [lpc2000] speed access to the flash
2006-05-04 by Karl Olsen
... From: naderus2000 To: Sent: Thursday, May 04, 2006 9:31 AM Subject: [lpc2000] speed access to the flash
Re: [lpc2000] Read from Flash
2006-05-04 by Karl Olsen
... From: vlads4377 To: Sent: Thursday, May 04, 2006 9:30 AM Subject: [lpc2000] Read from Flash ... The flash
Re: I2C question
2006-05-04 by rtstofer
... When the master reads data from the slave it acknowledges by asserting AA for every byte EXCEPT the last byte. For the last byte the master does not
Re: I2C question
2006-05-04 by derbaier
... You can get the specifications for the I2C protocol here: http://www.semiconductors.philips.com/acrobat_download/literature/9398/39340011.pdf Regarding
LPC2129 power up problem
2006-05-04 by Dave Ashton
I m hoping someone can shed some light on the following intermittent LPC2129 power-up problem: Power is applied; V18, V3, V18A and V3A become stable within
I2C question
2006-05-04 by Sutton Mehaffey
Can someone unconfuse me on several I2C issues as I try to understand the Philips I2C code in the file section? On, my design using a LPC2148, I am using
Abort exception
2006-05-04 by ³³«æµ¦³ñÌX
Dear All, Please teach me how to trap & debug abort exception. The only tool I have is ULINK.. Thank you. Octavius octcath@yahoo.com
Re: LPC 2148 power consumption
2006-05-04 by Danish Ali
The latest copy of the data sheet (dated 20 April 2006) has those numbers. Download it directly from the Philips website:
Re: [lpc2000] Stubs
2006-05-04 by Robert Adsett
... It can also refer to short assembly routines used to translate from one calling convention to another. In particular from interrupt to standard C or vice
LPC 2148 power consumption
2006-05-04 by trfillos
Hello, At the preliminary data sheet of LPC2148 (LPC2141_42_44_46_48_1.pdf) at pages 26 and 27 the power consumption is (to be determind). Where can we
Re: [lpc2000] USB aud io
2006-05-04 by Marko Pavlin
First of all, using LPC2138 for USB applications is not a good idea. Why don t you use LPC214x? You have very good USB audio example on keil page:
USB aud io
2006-05-04 by Girish Wabale
I want to make my USB Headset using LPC 2138 .This is my first time to use USB. How do I tell PC that it It has to send or recieve encoded audio signal to the
Re: How to change internal crystal oscillator frequency on lps 21xx
2006-05-04 by Danish Ali
Hi Cyril, I hope I m not teaching you to suck eggs but... There is no crystal inside the lpc2148. A crystal is a tuned circuit. Inside a metal can. You should
Re: [lpc2000] Stubs
2006-05-04 by Leon Heller
... From: jk jlkj To: LPC 2000 Sent: Thursday, May 04, 2006 11:12 AM Subject: [lpc2000] Stubs ... They are
IRQ handlers
2006-05-04 by jk jlkj
Hi Friends, I wanted to know how to write code, which will cause a jump to a interrupt handler routine when any interrupt is generated. The code given in the
Stubs
2006-05-04 by jk jlkj
Hi Friends, Can some one pls tell me the meaning of assembly stubs. Regards, Jerome ... Yahoo! India Answers: Share what you know. Learn something new. Click
How to change internal crystal oscillator frequency on lps 21xx
2006-05-04 by cyril_dunand
Dear lpc group, how can i program my lpc2148 to change the internal crystal oscillator frequency? One a first step I would like a 30Mhz (fosc and cclk) without
read/write data from Flash
2006-05-04 by naderus2000
can i use the flash for write/read some variable (like internal eeprom) if can how do that in IAR?
speed access to the flash
2006-05-04 by naderus2000
hi, i want to know the speed access to the flash. i want to know if the i have jump in my code how long does it take to fetch new code from flash.(how many
Read from Flash
2006-05-04 by vlads4377
Hi, How can I read from flash??? I mean from special sector? Thanks, Vlad
Re: [lpc2000] OFFTOPIC: PCB impedance calculation without GND plane
2006-05-04 by Bisser Gatchev
Hi Guillermo. Have you tried AppCAD? It s a free download from the Agilent website. Guillermo Prandi wrote: Hi. Sorry for
Re: [lpc2000] Re: OFFTOPIC: PCB impedance calculation without GND plane
2006-05-04 by Tom Walsh
... Since RF is RF and not digital or analog, you may want to ask around some of the lists which deal with RF. For example, Ham Radio (Amateur Radio). I have
Re: [lpc2000] Device programming (manufacturing / production)
2006-05-04 by Tom Walsh
... Why stop there? We used to use a vacuum head + bed of nails (your spring loaded pins) and do auto testing (ATE) of the boards. Since the LPC2000 is
Re: [lpc2000] JTAG programming
2006-05-04 by Tom Walsh
... In itsy-bitsy steps. JTAG is merely a series of very long shift register chains. These shift registers allow access to the micro-internals of the CPU.
Re: [lpc2000] Re: Powerdown and 3.3V supply
2006-05-04 by Tom Walsh
... Either that or use a FET to power off all but the processor core logic (pullups, etc). Let the processor power down sections of the board? TomW -- Tom