Re: [lpc2000] {To TomW} GCC-Bug in IRQs
2006-03-06 by Marko Panger
Hi Sten, I was experiencing the same GCC bug as you encountered. It came out only with optimization enabled. I ve searched around I and discovered that there
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Re: [lpc2000] SPI comms with another micro
2006-03-06 by Leon Heller
... From: Robert Wood To: Sent: Monday, March 06, 2006 8:06 PM Subject: [lpc2000] SPI comms with
SPI comms with another micro
2006-03-06 by Robert Wood
Chaps, I d like to pick your collective brains. I m using a 2194 that communicates with lots of other devices using all four CAN ports and both UARTs. One UART
Re: uCOS-II & IAR C Compiler PLEASE HELP ME ?
2006-03-06 by leon_heller
... Please do not upload copyrighted material to the group s Files area. The offending material has been deleted. Leon Heller Moderator
RE: [lpc2000] Re: H-JTAG update - new release from TwentyOne works with LPC :)
2006-03-06 by Karim Virani
Thanks Dave. Thanks particularly to TwentyOne who helped me get the settings right after receiving a wiggler-compatible from Olimex. With the latest version
uCOS-II & IAR C Compiler PLEASE HELP ME ?
2006-03-06 by eng_amrahmed2011
Salam, I have downloaded application note from uCOS-II.com h**p://www.ucos-ii.com/downloads/appnotes/AN-1229.zip This file describe how interface between
Re: [lpc2000] LPC2138 GPIO Pull Downs ?
2006-03-06 by Karl Olsen
... From: nknight62 To: Sent: Monday, March 06, 2006 6:44 AM Subject: [lpc2000] LPC2138 GPIO Pull Downs
LPC2138 GPIO Pull Downs ?
2006-03-06 by nknight62
We have an application where we use the GPIO I/O pins on Port 1 of LPC2138 to an LCV244 buffer/driver. We found that randomly, some pins on the buffer driver
Re: [lpc2000] stack, crt0.S and *.ld files in WinARM
2006-03-06 by Tom Walsh
... Your linker script does look odd, this is mine from a gcc-4.0.2 Thumb dev environ (binutils-2.16.1, gcc-4.0.2): =============== begin LPC2138ROM.ld
RE: [lpc2000] Re: ADC input leakage current
2006-03-06 by Michael Anton
Hi Sutton, Just one small problem, 4uA on 100K is 400mV, not 40mV, which when reflected up the divider likely means an error of 2V. Mike Anton
Re: [lpc2000] Re: ADC input leakage current
2006-03-05 by Robert Adsett
... He won t driving the input with 100K (from what I read of his description anyway), he ll be driving it with a 1uF cap. It presumably has a resistance well
Re: ADC input leakage current
2006-03-05 by rtstofer
... Other manufacturers (notably Microchip) specify that the source impedance of analog signals must be below 10k ohms. I certainly wouldn t be driving the
Re: ADC input leakage current
2006-03-05 by Sutton Mehaffey
Tom, I expect to put a tantalum cap of perhaps 1uf or so on the voltage divider junction and sample very infrequently, perhaps once per second. Perhaps it is
Re: [lpc2000] CAN Bus Real Time Conditions
2006-03-05 by Ake Hedman, eurosource
... Can the problem be that all your nodes are in bus of and you never get out of it as no node send correct frames to get you out of the BusOff From the
Re: [lpc2000] stack, crt0.S and *.ld files in WinARM
2006-03-05 by Grzegorz Reszka
Hello, Thanks for link to the lpc-ARM-book_srn.pdf. I read it and my knowledge about LPC uControllers now is better ;). Actually, I`m using startup.s and
Re: [lpc2000] ADC input leakage current
2006-03-05 by Tom Walsh
... Just some observations from the peanut gallery, FWIW. I, too, have noticed, what appears to be, a definate avoidance of giving complete spec s regarding
ADC input leakage current
2006-03-05 by Sutton Mehaffey
Does anyone (or Philips Techs) know the max input current leakage of the ADC channel input pins? The LPC2148 datasheet says that the input leakage current is
RE: [lpc2000] CAN Bus Real Time Conditions
2006-03-05 by Joel Winarske
Hi Dietmar, ... What happens to Bit 7 (BS) of CANGSR when you set RM bit? How long does the bus error persist? Joel
CAN Bus Real Time Conditions
2006-03-05 by Dietmar
Dear Ladies and Gentlemen, I have to develop a very safe CAN Bus application that have to resume its work after a short circuit on the CAN Bus in real time. I
RE: [lpc2000] indication for complete data transmission to USB host
2006-03-04 by Manisha
i think the problem i stated lately can be solved by checking USB Endpoint Interrupt Status register (0xE009 0030). any suggestion from your side will be
[lpc2000] indication for complete data transmission to USB host
2006-03-04 by Manisha
Hi all, Thanks for helping me in solving the issue regarding polling for reception of data. now, i am stuck in an other problem. i want an indication whenever
RE: [lpc2000] Polling for data reception
2006-03-04 by Manisha
Thanks Richard actually i wanted to avoid any Interrupt routine. anyway, i think i can use other interrupt status register bits also without enabling them.
Re: [lpc2000] Polling for data reception
2006-03-04 by Richard Duits
I don t know anything about the USB controller, because I never used an LPC214x. All I know that you can poll if an interrupt routine would be called if you
Re: [lpc2000] Polling for data reception
2006-03-04 by Bertrik Sikken
... You can have a look at my open-source USB stack for the LPC214x (see http://sourceforge.net/projects/lpcusb ) This code currently also uses the interrupt
RE: [lpc2000] Polling for data reception
2006-03-04 by Manisha
Hi Richard, thanks a lot for the reply. i was going through this VICRawIntr register. but, somehow i got confused about the bits. the 22nd bit is for USB, but,
Re: [lpc2000] Polling for data reception
2006-03-04 by Richard Duits
You can always use the VICRawIntr register to poll the status of any interrupt, even those that are not enabled. Regards, Richard.
Polling for data reception
2006-03-04 by Manisha
hi all, i am designing a USB driver code in LPC2148 board. whenever the USB port receives any data, it generates an interrupt. However, i want to design my
maximum leakage current on LPC2148 ADC channels
2006-03-04 by Sutton Mehaffey
Anyone know the answer? I can t find it in the datasheet. I see that the input leakage current is max at 4uA, but is that for the AD channels also? Sutton
Re: AD0 not working properly - help
2006-03-03 by Sutton Mehaffey
Sorry. Using LPC2148 on an Embedded Artists Quickstart and Prototype Board. Prototype board is nice to have. Conversion starts because I get the DONE bit
Re: [lpc2000] Re: AD0 not working properly - help
2006-03-03 by Richard Duits
You did not say which part you are using. The issues with the ADC pins not being fully 5 volt tolerant may be solved in the newer parts (LPC214x, etc). The
Re: AD0 not working properly - help
2006-03-03 by Sutton Mehaffey
Richard, I had these set up in an init file that I didn t include with the code. Also, it didn t matter if I did the write to AD0CR all at once or separate.
Re: UART baudrate
2006-03-03 by lpc2100_fan
Friendly amendment, you can run at 7.3728 MHz and as fast as 460.8 kbit/sec without any errors, this would also include the 115200 with zero error. If you do
Re: [lpc2000] AD0 not working properly - help
2006-03-03 by Richard Duits
You should start the AD conversion with a single write and not a series of read-modify-write operations. Also make sure that none of the ADC capable pins stay
AD0 not working properly - help
2006-03-03 by Sutton Mehaffey
I am trying to read a battery voltage (~12V) on AD0 channel 2. I have a breadboard circuit with a voltage divider that is working properly that gives a
EEPROM polling in I2C interrupt routine
2006-03-03 by Jacek Domanski
Hello All, I have a problem with EEPROM polling in my I2C interrupt routine (for LPC2114). After write sequence, there should be done polling and EEPROM
Re: [lpc2000] Re: UART baudrate
2006-03-03 by Xtian Xultz
Yes and no. The problem is not the speed, but the divisor error. For example, if you drive your LPC with 60MHz (10MHz*6 on PLL) you get an enourmous error at
RE: [lpc2000] Re: LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by Andrew Berney
Aye agreed, however I didnt have any surface mount ones to hand at the time and simply wanted to check a practical application of the theory on our dev board
RE: [lpc2000] Re: LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by mfrazier@governors-america.com
Andrew, 2k pull ups are a bit low...you should use a 10k to start with to be safe. Mike [Non-text portions of this message have been removed]
RE: [lpc2000] Re: LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by Andrew Berney
Aye having just applied a couple of 2k2 resistors to pull the signals up on the board they both work fine. All the inputs are pulled low atm. Now I simply have
Re: LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by c.barbaro
... using ... You have to put pullups on each pin that can be used with I2C since these pins are open collector. I found a similar problem using LPC2138 (it
RE: [lpc2000] LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by Andrew Berney
Currently there are no pull ups on either P0.2 or P0.3... we re not using I2C but I m guessing they re still required even for GPIO use. ... From:
Re: [lpc2000] LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by mfrazier@governors-america.com
Do you have a pull up on P0.2 as it is open drain for I2C compliance?? Michael J. Frazier Software Engineer Governors America Corp. +1.413.786.5600 (Voice)
LPC2129 GPIO issues with P0.2 and P0.4
2006-03-03 by berney73
Currently I have an LPC2129 and am trying to use the P0.2/SCL and P0.3/SDA/Eint1 pins for GPIO. Running the software under simulation in KEIL shows the micro
CAN 1 receive interrupt
2006-03-03 by Boris Kralik
Hi all. I have two devices connected to CAN bus, when I check data stream between devices, all is ok, devices exchanged information. I read RID/ TID and all
Re: Availabilty of redesigned LPC213X and LPC229X chips
2006-03-03 by Jayasooriah
Yes Philips, please plug the hole(s) that do(es) not exist :) --- In lpc2000@yahoogroups.com, unity0724 wrote: Though after so many
Re: LPC2212 does not come out from reset
2006-03-03 by extra300_it
Yes, this is the reason for the faulty reset (I discovered myself, but thank you all the same). In my case the TX of the PC RS-232 goes through the drivers and
Re: UART baudrate
2006-03-03 by icapapindi
I have used PLL MUL=4 with divisor=22 and It works perfectfly !! Altouht I don t understand why It doesn t work without multiplie the clock frequency Thank you
Re: [lpc2000] Re: UART0 and UART1 baud rate calculations
2006-03-03 by philipp1024@web.de
Hi, may I have it too. Or could you upload it to the LPC200 file section? Thanks Philipp ... ______________________________________________________________
Re: Availabilty of redesigned LPC213X and LPC229X chips
2006-03-03 by Vimal Amin
We are also facing funny timer isr behaviour. I have written TImer ISR to generate one_sec bit and toggle an LED. In main I dump a message on LCD display, and
Re: Availabilty of redesigned LPC213X and LPC229X chips
2006-03-03 by unity0724
...Ummm.....also... Questions of when philips is going to mask rom the 2 silicons: LPC2114-LPC2294 and LPC213x-LPC214x, and default JTAG to DISABLE. Though