Re: [lpc2000] I2C help
2004-05-16 by Michael Mathews
Josiah, Note that manufacturers code on the A version of this part is 7 and not 4 as in code examples for the non A PCF8574. Mike
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Re: [lpc2000] I2C help
2004-05-16 by microbit
Hi Josiah, ... Yes, they re open drain pins (even when GPIO !) The rest I don t know, haven t needed the I2C yet... -- Kris
I2C help
2004-05-16 by cpexed
I am trying to get a LPC2106 to talk to a PCF8574A chip which is 8 bit I/O expander. I cant seem to get any thing to happen when using the I2C example posted
Re: LPC210x SPI
2004-05-16 by cpexed
If you only had one device besides the master on the spi bus would it be reasonable to use the SSEL line to control enabling the slave device or should another
RE: [lpc2000] LPC210x SPI
2004-05-16 by James Dabbs
... possibility ... pins is ... Unfortunately, there is no other option. If you use the LPC201X SPI in master mode, you must pull SSEL high. It cannot be
RE: [lpc2000] LPC210x SPI
2004-05-16 by Michael Mathews
Milos, The SSEL pin must be pulled high from what I make of docs/posts. I put external pullup on it to get working and am using GPIO lines for my CSs. I was
RE: [lpc2000] LPC210x SPI
2004-05-16 by Milos Prokic
Thanks! It definitely is a bad design. I mean, MSP430 has an option 3 or 4 wire mode. Hence saving the pin if the MCU is always a master. I guess Philips ppl
RE: [lpc2000] LPC210x SPI
2004-05-15 by Milos Prokic
Hi, I was able to get it to work once I put the SSEL to High. is there a possibility to get the SPI to work without having the SSEL signal. The amount of pins
LPC210x SPI
2004-05-15 by Milos Prokic
Hi everyone, I m trying to get the SPI module to work. The description seems very straight forward, but for some reason I m not getting any activity on the SCK
RE: [lpc2000] Good resource for FAT16?
2004-05-15 by James Dabbs
If you want to solve this problem with a few dollars, Micrium s uC/FS looked like a very good solution. We haven t used it (yet), but we did license Micrium s
Good resource for FAT16?
2004-05-15 by cpexed
Hello, I am going to be trying to interface a SD MMC over the SPI interface on a LPC2106. I would like to have a FAT file sys for the mmc are there any good
Re: [lpc2000] Re: LPC210x RTC
2004-05-15 by Shannon Holland
As far as I can tell SPI clocks tend to be more expensive. Are you using the I2C pins for GPIO? If not, why must it be SPI? Things to get cheaper if you don t
RE: [lpc2000] Re: LPC210x RTC
2004-05-15 by Milos Prokic
Thanks! The thing is that the price is really an issue, in addition all of the other peripherals are controlled through SPI bus, so if it is an external chip
RE: [lpc2000] Re: LPC210x RTC
2004-05-15 by Bill Knight
Try using an external STMicro M41T81 RTC. It interfaces via the I2C bus and has a multi-function pin (watchdog reset, alarm interrupt, etc.) It also has a
RE: [lpc2000] Re: LPC210x RTC
2004-05-15 by Milos Prokic
Hi, thanks on your reply. Since the RTC is essential for my application, as well as low cost and low power consumption I was wondering if you know how much
Linker script question (arm-elf)
2004-05-15 by Michael Anburaj
Hi, I have requirement in my project where I have to specify an object file contained in a library file in my linker script. Something like this: MySection
announcing: Price Reduction with NEW ARM Design board - PHILIPS LPC 2106 + JTAG
2004-05-15 by mcu@web7days.com
announcing NEW ARM Design board with PHILIPS LPC 2106 + JTAG http://arm.web7days.com US $63 + shipping ( ARM board + JTAG + accessary + CD-ROM + cables) ...
Re: Watchdog reset not clean?
2004-05-15 by philips_apps
Hi We just tested the same code(with some minor modification for blinking the LED on the evaluation board) on LPC2124 and it worked fine. There was a Watchdog
Re: 1.8V/3.3V Question
2004-05-14 by robertadsett
... layout ... the ... 3.3V. ... damage ... On the other hand I ve deliberately powered up a 2104 with no 3.3V supply with no noticeable effect. That combined
LPC2106 Secondary JTAG -- comedy or tragedy?
2004-05-14 by James Dabbs
Has anyone on this forum used the secondary JTAG port on the LPC2106 with success? Thanks, James Dabbs, TGA
Re: [lpc2000] Sequnce charts and state Charts
2004-05-14 by Robert Adsett
... State charts can be (but don t have to be) event driven. At least in the sense of having to respond to an incoming queue of events. In fact I ve done
wiggler problems with IAR
2004-05-14 by douglasbolton
I am using a 2106 with the IAR compiler and wiggler JTAG debugger. If I compile code for flash and burn with the philips ISP no problems. However if I compile
Re: [lpc2000] Re: How execute ram code after load by isp command
2004-05-14 by Sébastien MARION (UMM)
thanks for your reply, it work better but not completly, if I first start my board, load my code in ram and execute, it don t worked. if I load with debugger a
Re: 1.8V/3.3V Question
2004-05-14 by leon_heller
... error, ... On ... oscillation); on ... or ... replace ... Just guessing - CMOS can do funny things sometimes like going into a latch-up state, drawing
1.8V/3.3V Question
2004-05-14 by James Dabbs
We re working with several prototype boards. Because of a layout error, we have a jumper on the linear regulator circuit. On 2 boards, the jumper broke free
Sequnce charts and state Charts
2004-05-14 by subhashinimanne
As far as My knowledeg Message sequnce charts(MSC) are time driven representaion.State charts are event driven representation of of the system.Is it correct or
On-line User Manuals updated
2004-05-13 by philips_apps
Hello all, We want to inform you that new releases (dated 05/03/04) of the LPC2114/2124/2212/2214 and LPC2119/2129/2194/2292/2294 User Manuals are available
Re: Watchdog reset not clean?
2004-05-13 by bobbruce000
... It is a 64 pin device. LPC2124 to be precise. I also have a LPC2106 circuit, and the watchdog seems to work okay on that. I stripped the code down to a
Re: injecting an external 4 MHz clk into LPC2000, and using PLL - anyone done si
2004-05-13 by philips_apps
Hello Slawcus, Philips has not conducted test(s) that would exactly match what you have described in the post, however if proper PLL setup & connect scheme are
Re: Watchdog rest not clean?
2004-05-13 by philips_apps
What LPC2000 part are you using? Is it a 48-pin (LPC2104/5/6) or 64/144-pin (LPC2114/2124/2212/2214 & LPC2119/2129/2194/2292/2294) device? Regards, Philips
Re: [lpc2000] Re: injecting an external 4 MHz clk into LPC2000, and using PLL - anyone done similar ?
2004-05-13 by microbit
... Ok, so it s the ref. input on the phase comparator that s the limiting factor, or similar. That makes sense now. Thanks ! -- Kris
Watchdog rest not clean?
2004-05-13 by bobbruce000
I am having problems recovering after a watchdog reset. I enable the watchdog, then to test it, I put the cpu into a loop, toggling a pin connected to a logic
Re: Help with RX interrupt
2004-05-12 by Frank
It took longer for me to get back to the lab than expected, but lo, the code works as expected now. Adding that dummy write to VICVecAddr did the trick. -Frank
Re: [lpc2000] Re: injecting an external 4 MHz clk into LPC2000, and using PLL - anyone done similar ?
2004-05-12 by microbit
Hi Bill, Thanks for the tip ! I was still at concept stage and that hadn t occured to me yet :-) -- Kris ... From: Bill Knight To:
Re: [lpc2000] Delay Routines
2004-05-12 by Robert Adsett
... See http://www.aeolusdevelopment.com/Articles/download.html and http://www.aeolusdevelopment.com/Articles/docandapp.html Robert Freedom has no meaning
Re: [lpc2000] Stupid question
2004-05-12 by Robert Adsett
... It s uart 0. ... If I understand you correctly I ve got a board that does this. See http://www.aeolusdevelopment.com/Articles/InSystemProgramming.html
Re: Stupid question
2004-05-12 by leon_heller
... time now ... located ... through a ... switch ... device ? It s UART0 (pins 13 and 14). Have a look at my schematic:
Delay Routines
2004-05-12 by Beeno Rabbit
Dear all, How can I write a very accurate delay routines? Best Regards, Beeno
Stupid question
2004-05-12 by Lasse Madsen
MessageI ve been looking around in the datasheets for quite some time now (two hours or so) and I guess im going blind staring at it ... I cant seem to find
RE: [lpc2000] Secondary JTAG Mood Swing
2004-05-12 by James Dabbs
Reading this note, I realize I need to be clearer: my debug environment does experience intermittent periods of lucidity where everything does work flawlessly.
Is there a BSDL file
2004-05-12 by javaguy11111
I am looking into using the LPC210x in a project. In searching around on the Philips site I do not see a bsdl file for the jtag. Does anyone know if there is
Re: [lpc2000] gcc - current dir search path
2004-05-12 by Robert Adsett
... Use include instead of include filename . That should work. That s the general intent of the difference and it does for most compilers I ve
RE: [lpc2000] Secondary JTAG Mood Swing
2004-05-12 by James Dabbs
Hugh, I did read this; it was very helpful. My debug process is very similar to this except that my initial load is through UART0 using the ISP features of
gcc - current dir search path
2004-05-12 by Michael Anburaj
Hi, Is there a gcc option to specify no_current_dir for the search (or include) path? Or at least something to override the current path with a –Idir option?
RE: [lpc2000] Secondary JTAG Mood Swing
2004-05-12 by Hugh O'Keeffe
Hi James, For the full scoop on the secondary debug port see our on-line faq at
Re: Regarding C and assembly file compilation and linking
2004-05-12 by leon_heller
... linking ... file ... led.map is the linker map file, it is actually generated by -Map=led.map, and isn t supplied. Leon
Re: injecting an external 4 MHz clk into LPC2000, and using PLL - anyone done si
2004-05-12 by slawcus
I haven t noticed this in datasheet: Can I drive X1 with low speed external clock without PLL, then change X1 frequency on the fly and after that use PLL?
Secondary JTAG Mood Swing
2004-05-12 by James Dabbs
I am using the secondary JTAG port to debug my target (LPC2106 Target; Nohau Debugger) Initially, I flashed the part through the serial port using ISP,
Re: [lpc2000] Re: Regarding C and assembly file compilation and linking
2004-05-12 by Robert Adsett
... led.map is an output file, not an input file. It is the map file from the link phase. Robert Freedom has no meaning of itself. There are always
Re: Regarding C and assembly file compilation and linking
2004-05-12 by senzhk
... -Wl,-Map=led.map,--cref,-nostdlib ... Hi, Leon, I have downloaded the lpc2100_gcc.zip from yahoo group and can t find the led.map, where can I find it? or