Re: [lpc2000] Re: CS8900A question
2005-11-03 by Michael Anburaj
Robert, I wrote the CS8900A driver myself & using it with LPC2106. LPC2106 p0.16 has issues, other than that at -O2 optimisation level & GCC I had to add 4
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Re: Solenoid Control.
2005-11-03 by charlesgrenz
Hi Tom, We use a IRFD110 (Hex Dip MOSFET) with a 1N4001 diode to control 0.5 amps in a very small package. They are also logic compatiable. regards, Charles
Re: [lpc2000] Solenoid Control.
2005-11-03 by Peter Jakacki
Solenoids require a lot of current to pull-in the plunger. After the plunger has been pulled-in a smaller amount of current is all that is required to hold
Re: [lpc2000] Solenoid Control.
2005-11-03 by Tom Walsh
... OW, missed that one! Well, bigger FET and larger diode(s) then... Perhaps an IRF530, lots of power in that, somewhere around 6 AMPs, IIRC. It could also
Re: [lpc2000] Re: KEIL MCB2130 RTC clock question
2005-11-03 by Tom Walsh
... Either that, or their designer has had problems with excessive heating of the crystals in past designs and simply carried over a tried-n-true solution. I
Re: [lpc2000] Solenoid Control.
2005-11-02 by Robert Adsett
... Well the original post did say they had a 2 Ohm coil. That in turn would suggest a multiamp drive was needed. That diode in the 2n7000 won t protect
Re: [lpc2000] Solenoid Control.
2005-11-02 by Robert Adsett
... Good thing to check although I ve not seen a power FET whose integral body diode wasn t rated for a much current as the FET itself. More important make
Re: KEIL MCB2130 RTC clock question
2005-11-02 by derbaier
The 32KHz tuning fork crystals used in watches and microcontroller sleep circuits have a maximum drive rating. IIRC it is on the order of 5 microwatts or
RE: [lpc2000] Recommended LPC2148 retail price.
2005-11-02 by Frantz Robinson
Mark, You absolutely will be able to get that advertised price (or better) at Future if you are seriously looking to use 10k EAU. Don t go by the web prices;
Re: [lpc2000] KEIL MCB2130 RTC clock question
2005-11-02 by Arie de Muynck
From: Tom Walsh ... A deja vu, see the archives of this group... The max power into a 32kHz Xtal is very limited, the resistor lowers
Recommended LPC2148 retail price.
2005-11-02 by mark_dell555
Hi, I just watched the LPC214x webcast, and at the end the presenter answers a question about cost of the lpc2148 in 10k qty. He states the suggested price as
Re: RX baudrate different than TX baudrate on LPC2148 using U1FDR
2005-11-02 by jp_thrower
... I also have set U1ACR = 0x00 at initialization to ensure that the autobaud is not turned on.
Re: [lpc2000] LPC3000
2005-11-02 by Ghazan Haider
Hmm. 200MHz and 250mA. That doesnt sound too impressive (dont know if this is just while(1){} or with all peripherals exercised at 66%, but its not amazing to
RX baudrate different than TX baudrate on LPC2148 using U1FDR
2005-11-02 by jp_thrower
I m not able to get the LPC2148 chip to receive at the same baudrate that it sends at when using the fractional devisor U1FDR. Does anyone else have this
Re: [lpc2000] Solenoid Control.
2005-11-02 by Tom Walsh
... I generally use a 2N7000 or 2N7002 FET for driving relays. They can sink up to 100ma easily and have an internal clamping diode to protect the gate when
KEIL MCB2130 RTC clock question
2005-11-02 by Tom Walsh
While looking at the schematic for the Keil MCB2130, I noticed that they put a 560K resistor in series with the 32KHz crystal. This seems odd, the only reason
Re: Wierd Philips ISP Utility problem (Part 3)
2005-11-02 by Leighton Rowe
Hey Amit, Thanks for your suggestion on using the hyperterminal to test run the on-chip bootloader. I ran a set of basic commands on two boards (one good board
Re: [lpc2000] Re: new to lpc 2000
2005-11-02 by Mike Nelson
Eric: IAR does not do this. IAR s licensing is based on one of three things: node-locked to PC host hardware, locked to a separate USB dongle (not a J-Link),
Re: [lpc2000] Re: CS8900A question
2005-11-02 by rseku
I think I have the same problem with CS8900A. I use MAM=full, and cclk=60MHz Could You please explain where this delay loop should be added: 1. between bits
Re: [lpc2000] Re: LPC3000
2005-11-02 by Mike Nelson
Hamilton: I wish I could, but it s not available on the Nohau site or the Philips site. We got the Nohau board with preliminary Nohau documentation from a
Re: [lpc2000] Re: LPC3000
2005-11-02 by Mike Nelson
Slawc: I would prefer that Nohau release the documentation themselves, since it is their board. I don t know if my employer is under a Non-Disclosure
Re: [lpc2000] LPC3000
2005-11-02 by Mike Nelson
Rob: I saw the press release, but I need hard data, not marketing fluff. I need to know the address map for flash, RAM, and register access, and the bit
RE: [lpc2000] Where To Order LPC2138
2005-11-02 by Frantz Robinson
Future Electronics has stock and will sell small qty shipped within US in 1-2 days. The price on LPC2138FBD64 is $ 8.75 In fact if you are designing a
problem during execution through JTAG
2005-11-02 by bhanunagendra
I am able to use the JTAG port (through wiggler) to read memory/registers/status of my LPC2214 using OCD Commander. However after downloading an executable
RE: [lpc2000] How to specify the location of an object in memory(GNU)
2005-11-02 by David Hawkins
Hey Tom, ... No sweat, glad you are listening in on things and are willing to share. ... Yeah, I took a look at your the reference you posted on
Re: [lpc2000] How to specify the location of an object in memory(GNU)
2005-11-02 by Tom Walsh
... It was my problem, not yours. Thank you anyway. ... The code examples that you mentioned before are appropriate for the high-level referencing of objects,
Re: [lpc2000] LPC3000
2005-11-02 by Joel Winarske
... This doesn t help Mike, but more info can be found in this report: http://www.arm.com/miscPDFs/8857.pdf Joel
Re: Overclocking LPC213x.
2005-11-02 by mark_dell555
... I still have to do the 10Mhz test. As far as using 5Mhz external, you have to remember that the PLL will only accept something in between 10 Mhz and 25
Re: LPC3000
2005-11-02 by donhamilton2002
... Mike, would you please post a link to where you found all this. Thanks hamilton
Re: JTAG consulting
2005-11-02 by bhanunagendra
... so ... dates ... I would find this source code extremely useful. But after a search around the Atmel website (and the web in general) I still could not
Re: LPC3000
2005-11-02 by seangra
Sorry, what I meant is if someone sends me the files I can host them on my website, but I don t have them yet.
Re: LPC3000
2005-11-02 by seangra
If someone wants send me a private email and I ll put it up on my website.
Re: Overclocking LPC213x.
2005-11-02 by seangra
Hey, any more tests done on this? I remember back in the early pentium days, getting a P133 and having a very good probability of overclocking to 200MHz. You
Re: board warranty
2005-11-02 by seangra
I found something disturbing as well, here s the email that I sent. Anyone have any thoughts about this? Dear Olimex Support: I ve got a question about the
board warranty
2005-11-02 by rseku
Dear Olimex support! On the CS8900 ethernet board, there significant inconsistencies between schematic and board: 1. On board label D11 - On schematic no such
Re: IO pins toggle timing CS8900A
2005-11-02 by Karl Olsen
... See the assembly output from the compiler, and http://groups.yahoo.com/group/lpc2000/message/7808 for the timing of the individual instructions. Karl Olsen
IO pins toggle timing CS8900A
2005-11-02 by rseku
I m playing now with CS8900A control timing. there are some examples on the net, but they don t care about MAM,PLL configuration. My question is how fast the
Correct IO coding scheme? CS8900A
2005-11-02 by rseku
My question is regarding good habbits of manipuating IO s. In the freertos environment I m toggling output bits as (relevant code marked with ***) while(....){
Re: LPC3000
2005-11-02 by slawcus
... Can you upload it to some other site or send private mail? BR, Slawc
Re: SPI, SSP on LPC2148 MCB2140 Keil Bug?
2005-11-02 by Problem Solver
Dear Philips Apps Team: I want to know if it is required to attach a 7-bit crcs and 1 bit stop bit to the command you sent to detect the card (RDID command)?
Re: [lpc2000] Re: new to lpc 2000
2005-11-02 by Rob Jansen
Philipp, ... I bought my boards at Embedded Artists. They deliver their boards with a CD that contains everything you need to get up & running in no time.
Re: [lpc2000] Generate IR?
2005-11-02 by Joel Winarske
... Use a match output pin in conjunction with the timer peripheral. The timer peripheral suits generating and receiving consumer IR sequences exceedingly
Re: [lpc2000] LPC3000
2005-11-02 by Rob Jansen
... Google Is Your Friend :o) I just types in LPC3000 and the first link I got when to the Philips website:
Re: [lpc2000] Solenoid Control.
2005-11-02 by Rob Jansen
... And do not forget to add a diode accross the FET, some MOSFETs have a diode built in but it may be too small, depending on your load. Solenoids and things
Re: new to lpc 2000
2005-11-02 by Eric Engler
... IAR can use the j-link as a licensing dongle. It apparently has some kind of internal serial number that EmbeddedWorkbench can read...
Re: gdb flash stepping (at last)
2005-11-02 by Eric Engler
... Did they ever release the source code for this? I d like to have this on linux...
Re: [lpc2000] Solenoid Control.
2005-11-02 by Robert Adsett
... Actually transistors don t really have a resistance drop then have a voltage drop. If you are driving it into saturation the drop will be from 0.5V to 1V
Solenoid Control.
2005-11-02 by Nice Guy
I know this is kinda off topic, but I m having problems controlling a solenoid. I want to use a gpio pin to simply turn the solenoid on and off. I used a NPN
RE: [lpc2000] Re: new to lpc 2000
2005-11-02 by Paul Curtis
Hi, ... CrossWorks ( The Rowley Tools ) works well with the Segger J-Link for many customers. We do, however, offer our own fast, cheap (£99) USB to JTAG
Re: new to lpc 2000
2005-11-02 by lpc2100_fan
Hi, I am writing this e-mail on a Laptop that does not have a parallel interface. The Keil U-Link has a USB to JTAG converter, the Olimex connects to the