Re: LPC213x And Ethernet
2005-01-26 by go_lpc
I start new project with LPC2138 and Wiznet W3100A chip (10/100M). It is connected through 3 lines (I2C - SCL, SDA and interrupt). My experience with previous
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Re: LPC213x And Ethernet
2005-01-26 by charlesgrenz
Also you if you do not want the overhead and just a simple Ethernet connection you may want to look at Lantronix. It is a Ethernet to serial bridge which
Port maximum current
2005-01-26 by extra300_it
Hello, The hardware manual says that the maximum current for each GPIO output pin is 4 mA in both directions. Is there any limitation considering the whole
Re: real-time interrupts, states and tools
2005-01-26 by leon_heller
... [deleted] It looks like you are working with the ADXL202 accelerometer. I m using one with an AVR for my initial prototype, but will be moving to an MSP430
Re: accurate pulse measurements
2005-01-26 by chazeltopman
By the way also beware of this problem noted in the LPC2106 errata sheet: In summary, while software is writing to the Interrupt Register, any Match or Capture
Re: [lpc2000] Re: Strange ISP Problem
2005-01-26 by Aalt Lokhorst
Hello Reggie, ... I think the Philips utility uses DTR to reset the processor and RTS for forcing the procssor in boot-loader mode. (You need some extra
real-time interrupts, states and tools
2005-01-26 by chazeltopman
Well, I went and built some tools to help me solve some problems and this is what I found with what I built. Architecturally, I merged two state machines into
Re: [lpc2000] LPC213x And Ethernet
2005-01-26 by Marko Pavlin
I am developing application with lpc2138 and cs8900a. I used freertos with uIP port. http://www.freertos.org/portrowleylpc2124.html For schematic check
Re: 2138 Data Abort Loading SSP Reg
2005-01-26 by tkreyche
Dave, I m starting to think that there is an incompatibility between the TI spec and the 2138 on the receive timing. I tried both phases and they both sortof
LPC213x And Ethernet
2005-01-26 by dsidlauskas1
I have a project where the LPC312x fits very well accept that there s a requirement for ehternet connectivity. I d appreciate any suggestions as to how this
Texas Instruments have TMS470 datasheets on their web now
2005-01-25 by tsvetanusunov
Hi, The info for TMS470 actually have been on TI web site for years but they never made the datasheets public, as didn t want to deal with small customers. Now
Re: [lpc2000] Re: Code optimization problem
2005-01-25 by Robert Adsett
... Given: extern volatile char U0IIR; char dummy; where dummy is never referred to, then the lines dummy = U0IIR; U0IIR; (void)U0IIR; Should all produce
Re: Wiggler + Crossworks works, ocdremote not?
2005-01-25 by faisaldhada
Hello, I had a similiar problem, I found that the Macraigor Wiggler (ocdremote) used within IAR Embedded Workbench worked. But the recent version of ocdremote
Re: [lpc2000] Re: Code optimization problem
2005-01-25 by Uwe Arends
Richard, ... even if you declare dummy as volatile? -uwe
Re: Code optimization problem
2005-01-25 by Richard
Robert, Can you elaborate on how this is used? Right now the statement: dummy = U0IIR; // clear the flag Is optimized out in my UART ISR. Richard ...
Re: Strange ISP Problem
2005-01-25 by Nice Guy
The level translator i m using is a prebuilt unit. It gets it s power from the serial port (RTS & DTS) lines I think. It has worked with other projects such
Re: [lpc2000] Re: accurate pulse measurements
2005-01-25 by dasbento@aeiou.pt
Thanks Rob!!! The problem was to clean the interruption flags, as you said. The part of reading the iopin, I can do because I have connected PWM to the capture
Re: 2138 Data Abort Loading SSP Reg
2005-01-25 by dsidlauskas1
Keil says that the problem is only with the SSP registers and will be fixed by the end of February. Also be aware that SSPCR0 and SSPDR are defined in
Re: 2138 Data Abort Loading SSP Reg
2005-01-25 by dsidlauskas1
Tom, Does your SSP clock phasing match the ADC? Keil says the LPC213x problem will be fixed by the end of February. Also be aware that SSPCR0 and SSPDR should
Re: [lpc2000] Re: Strange ISP Problem
2005-01-25 by Robert Adsett
... Have you tried a different cable? This is the kind of thing I ve seen with intermittent connections (cold solder joint, lead sitting on pad w/o solder, a
Re: Cant get write puls from LPC2294
2005-01-25 by didier_edna
OK, found the answer in message 5139. when sending an 8 bitter (a char) the write line is not used. Sorry to bother.
Cant get write puls from LPC2294
2005-01-25 by didier_edna
Hello anyone, or all, I m playing with the LPC2294 ARM (from Phillips of course) and dont seem to be able to write data into the RAM space. A latch is located
Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-25 by charlesgrenz
Hi Tim and Kris, Thanks for the info. Already performed all those things. This particular board layout can have from 2 to 3 processors on it (LPC2138) and we
LPC2124 A/D converter
2005-01-25 by atmelbr
Hi all, I´m developing an application using LPC2124 /D converter. I´m trying to sample 3 inputs (AIN0,AIN1 and AIN2). If I program to sample AIN0 first I
Re: [lpc2000] Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-25 by microbit
Hi Tim, ... Exactly, and I ve seen this in practice - engineers going the safe side with 4 layers, and creating more bad than good. I m not opposed to
New file uploaded to lpc2000
2005-01-25 by lpc2000@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the lpc2000 group. File :
Re: Controller
2005-01-25 by didier_edna
Indeed they are not serious, I made the mistake of buying a phytec board. As long as it works fine, no probs, but we have one with problems. You should try to
Re: accurate pulse measurements
2005-01-25 by chazeltopman
... These three lines will turn off all the interrupts if more than one happens at the same time since it is oring a value onto itself and then writing it
Re: [lpc2000] lpc2106 Overheating
2005-01-25 by Leon Heller
... From: ds19968902 To: Sent: Tuesday, January 25, 2005 4:15 AM Subject: [lpc2000] lpc2106 Overheating ... It
Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-25 by tlarson_greatnotions
I have a board built with the LPC2214. This board has 3 LDO s, a rectifier bridge and two offboard connectors and is also two layer. It is one of the cleanest
Re: Strange ISP Problem
2005-01-25 by Nice Guy
Yes, have tried several different computer with different COM ports. At school today I have had access to an oscolliscope and found out that the philips
lpc2106 Overheating
2005-01-25 by ds19968902
I recently posted about sourcing the lpc2106 due to burning a few of them lately. Leon Heller asked as to how they got fried so I put some information
Re: [lpc2000] Re: LPC2129 IAP Questions
2005-01-25 by Robert Adsett
... Assembler code doesn t get any simpler to use than those. Just compile with GCC, add #include lpc_sys.h in your application to provide the appropriate
Re: LPC2129 IAP Questions
2005-01-25 by firegenie1980
Hi, Thanks for the information about the status code. I just hadn t realised that it was returned within the result variable. The second part to do with the
Re: 2138 Data Abort Loading SSP Reg
2005-01-25 by tkreyche
Dave, I gave up on the simulator almost immediately for the reasons you state below. Also when hooking up to external hardware a simulator is only marginally
Re: [lpc2000] Re: Code optimization problem
2005-01-25 by Robert Adsett
... Sigh, It would probably help if I wrote what I was thinking. I meant volatile when I wrote void. Given the above, then the following line (void)SPI_SPDR;
Re: 2138 Data Abort Loading SSP Reg
2005-01-25 by dsidlauskas1
Hi Tom, The problem with the Keil development system and the LPC213x is that the Keil system doesn t know the LPC213x SFR s. That s why it s simulator threw a
Re: Code optimization problem
2005-01-24 by Richard
Robert, I don t follow, the registers are declared thusly: #define SPI_SPDR (*((volatile unsigned char *) 0xE0020008)) Richard ... that is
Re: [lpc2000] accurate pulse measurements
2005-01-24 by dasbento@aeiou.pt
Hi, someone can help me to notice because the following happens: I have 3 PWM (of accelerometers ADXL202E)with periods of more or less 100Hz and I want to
Re: LPC2129 IAP Questions
2005-01-24 by Leighton Rowe
... a ... From what I ve seen. That variable would be status[0]. The UM gives a basic skeleton on how all IAP function calls and data structures work, but
Re: [lpc2000] Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by Robert Wood
Hmmm, the only other thing I can suggest is looking at any long lines with high speed data on them (especially clock lines). I found that putting a resistor on
Re: [lpc2000] LPC2129 IAP Questions
2005-01-24 by Robert Adsett
... It depends on your compiler. If you are using a GNU setup there is code in the newlib-lpc support. See
Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by charlesgrenz
Yep, all those things we ve done. Top of the board is 100% components and 99% signals and the bottom is 1% signal and 99% ground plane. Top of the board that
LPC2129 IAP Questions
2005-01-24 by firegenie1980
Hi, I have been reading through all the posts about this topic, however there are two question I have which I cant find the answers for so far. Sorry if they
Re: [lpc2000] Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by Robert Wood
Sorry if someone s already mentioned it, but big, dobbering ground planes are the single most effective way I ve found over the years for helping with this.
Re: [lpc2000] Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by microbit
Hi, ... Your best shot I think is to try and isolate *where* the VCO signal is radiating, little chance it would radiate so strongly from the die ! Probably
Re: [lpc2000] Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by Marko Pavlin (home)
It s not easy and there are only well known general rules. Use emi filters on high speed lines where possible (e.g. murata EMIFIL or similar), use ground
Re: LPC2000 and EMC radiation (Application radio modems)
2005-01-24 by tsvetanusunov
... that ... we use double side board, the problem is not in the crystal definitely as if PLL is not enabled this noise is not generated IIRC PLL works on
Re: 2138 Data Abort Loading SSP Reg
2005-01-24 by tkreyche
Dave, I ve just spent a lot of time over the past two weeks working with SSP on the Keil kit, interfacing it to a TI ADS1256 ADC. I ve run into a variety of
Re: [lpc2000] Re: Code optimization problem
2005-01-24 by Robert Adsett
... Were those registers declared with a void qualifier? If so than that is definitely a bug. Robert Freedom has no meaning of itself. There are always