I2C help for LPC2148
2006-03-07 by Sutton Mehaffey
Just learning to play with I2C. I am trying to address a RAMTRON Serial RAM chip and am having some difficulty getting proper responses from it. I have the
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Re: Philips Flash Utility for LPC2148?
2006-03-07 by lpc2100_fan
... Karl, the only way I found was http://www.philips.com/microcontrollers but there was no link at www.philips.com, just following an earlier post. Guess
Re: [lpc2000] `/etc/startup.mk' not found
2006-03-07 by Thiago Takehara
I believe this error you got has nothing with your makefile, even with your source codes. I´ve googled a little about this error message and found answers
Re: [lpc2000] SPI comms with another micro
2006-03-07 by Robert Wood
... for us. We use a 38400 Hz interrupt on FIQ to reduce jitter, and a state machine to run the protocol. It s been tested with three bit-banged UARTs. If we
Re: [lpc2000] SPI comms with another micro
2006-03-07 by Robert Wood
... affliction of C-Sickness ;-)
Re: [lpc2000] `/etc/startup.mk' not found
2006-03-07 by K B Shah-lascaux
Here is the make file :(I have modifed paths for my winarm] (This file came with the example that are installed with installation.) I am also sending example
Re: [lpc2000] SPI comms with another micro
2006-03-07 by Don Ingram
Curse you Forth people!!! Engaging in carefree coding without the affliction of C-Sickness ;-) Don P.S Explicit smiley ;-) Lest I wind up in the flame zone...
Re: [lpc2000] `/etc/startup.mk' not found
2006-03-07 by Thiago Takehara
maybe your makefile tries to find this dependency. Please, send your makefile so I can see what it needs to build your target. Thiago Takehara Computer
Re: Jtag RTCK pull-up or pull down ?
2006-03-07 by gm_muc
... (olimex) some ... Depends on what you want to do with the board and how your debugger handles RTCK during pulling reset: RTCK is P1.26, which according to
Re: [lpc2000] Philips Flash Utility for LPC2148?
2006-03-07 by Thiago Takehara
I´m using LPC2000 Flash Utility V2.2.3 and it works well. I´ve downloaded lpc21isp source code and compiled using DEV C++ and it is working very well for me,
Jtag RTCK pull-up or pull down ?
2006-03-07 by Sagaert Johan
Hi I am a bit confused : some evaluation boards use a pull-up (olimex) some other (mcb2103 ) use a pull-down resistor on the RTCK pin. Whats the correct one ?
`/etc/startup.mk' not found
2006-03-07 by kbshah_2000
Hi guys. I am new with GNU arm. (I have used IAR). After downloading I have installed winarm and tried to compile example code but I get following message...
Re: Philips Flash Utility for LPC2148?
2006-03-07 by Karl Olsen
... LPC2000 Flash Utility 2.2.3 supports LPC2148. Start at All LPC2000 Products at http://www.standardics.philips.com/products/lpc2000/all/ , open a CPU,
Philips Flash Utility for LPC2148?
2006-03-07 by skyspyco
I recently switched development boards from the Olimex LPC2138 to the LPC2148. Now it seems that the standard Philips Flash Utility (ver. 2.2.0) that I was
Re: [lpc2000] Re: AD0 not working properly - help
2006-03-07 by 3gpabko
I think that you miss some details in your question. Can you verify that at the moment of starting of the AD conversion the AINx pins are configured as
Re: AD0 not working properly - help
2006-03-07 by Sutton Mehaffey
It is IODIR0 in the Keil compiler. I think it is IO0DIR in IAR and others. Sutton ... IODIR0 ) ??? ... code. ... ADC clk) ... series ... Volt ...
Re: [lpc2000] Re: ram initialization at reset
2006-03-07 by Tom Walsh
... Well, that would work with Kiel, I guess. I don t use a Keil dev system, my system is GNU compiled from source. YMMV. TomW ... -- Tom Walsh - WN3L -
Re: [lpc2000] Re: ram initialization at reset
2006-03-07 by Tom Walsh
... Your choice, I just added it after. Consideration is this, I am using newlib stubs and the sbrk() function references the first free memory from the end
Re: [lpc2000] Re: ram initialization at reset
2006-03-07 by Tom Walsh
... Yes, it is for the GNU gcc, I ve tried this under the gcc-4.0.2 + binutils-2.16.1. TomW -- Tom Walsh - WN3L - Embedded Systems Consultant
Re: [lpc2000] Re: AD0 not working properly - help
2006-03-07 by K B Shah-lascaux
Is it not suppose to be IO0DIR &= 0x8FFFFFFF;...??? (You have IODIR0 ) ??? ... From: Sutton Mehaffey To: lpc2000@yahoogroups.com Sent: Friday, March 03,
Re: ram initialization at reset
2006-03-07 by ebarker123
Thanks for you excellent reply. Is this for the GNU compiler ? I failed to mention that I m using the Keil compiler. I ve determined that the following
Re: real time clock
2006-03-07 by ebarker123
That would certainly solve the problem. What I m really interested in knowing (so that probably makes this a Phillips question) is whether or not the enable is
Re: [lpc2000] Scheduler for LPC
2006-03-07 by 42Bastian Schick
... Check out the various open-source RTOS. Also the uC/OS book. -- 42Bastian
SPI comms with another micro
2006-03-07 by Stephen Pelc
... Ho, hum - bit-bang a few GPIO lines on the LPC. It works fine for us. We use a 38400 Hz interrupt on FIQ to reduce jitter, and a state machine to run the
Re: ram initialization at reset
2006-03-07 by Guillermo Prandi
Excellent walkthrough, Tom! ... I would have put it *before*, and I can t think of a reason not to do so (not that putting it after would be harmful). Guille
Re: [lpc2000] ram initialization at reset
2006-03-07 by Tom Walsh
... Look in your crt0.s file, bss sections are zeroed there. bss data is data which you declared globally and did not provide a value for. *ALL* C code
Scheduler for LPC
2006-03-07 by jk jlkj
Hi Friends, I am trying to make a simple scheduler around Timer1 of LPC2214. The timer will be configured to generate an interrupt every 500us. The timer will
RE: [lpc2000] Re: EP_RAMsize and Words and bytes
2006-03-07 by Manisha
Thanks a ton Richards. actually the Atmel board with ARM processor supports the transaction in bytes format. as i suppose no word stuff is involved there. No
Re: EP_RAMsize and Words and bytes
2006-03-07 by rtstofer
... 1, in ... cases we ... DWORD is kind of an Intel thing. I don t see it described in the GNU manuals (other than under FRV) so if it applies to ARM at all,
EP_RAMsize and Words and bytes
2006-03-07 by Manisha
Hi all, i am confused with the words and byte relation in EP_RAM size. they are saying EP_RAM is word aligned. and FIFO maximum size is in bytes, so, we will
Re: real time clock
2006-03-07 by unity0724
Umm... Why not just setup the second tick interrupt from RTC?? Store/Update Time/Date value every second to somewhere. Background task (Non-ISR code)
Re: [lpc2000] ram initialization at reset
2006-03-07 by David Hawkins
... The startup code zeros variables in the .data section. If you want the startup code to leave your variable alone, create a new section for it, and place it
real time clock
2006-03-07 by ebarker123
I m using the lpc2138: Q. How do you read the clock registers without risk of rollover ? For example, I know of clocks that have a dual-port ram between the
ram initialization at reset
2006-03-07 by ebarker123
Here is the scenario. I have an MCB2138 eval board. I have a menu talking on a serial port. Using the menu, I can set and print a variable called mytemp . I
Re: I2C code for LPC2148
2006-03-07 by philips_apps
... Just ... Sutton, There are many examples in the Files area, check the one uploaded by Philips Apps.
Re: LPC2138 GPIO Pull Downs ?
2006-03-07 by Jayasooriah
Hi Nick, something similar happens in LPC2292. Although user manual says All Port 1 pins are 5V tolerant with built-in pull-up resistor that sets input
Re: [lpc2000] Re: ADC input leakage current
2006-03-07 by Robert Adsett
... That s a description of a sample and hold circuit not a switched capacitor SA convertor. Most A/Ds work this way. The biggest exception would be those
RE: [lpc2000] I2C code for LPC2148
2006-03-06 by Bruce Paterson
... From memory the Ramtron s are identical communications to s serial Eeprom (just faster). I have used the I2C on an 8051 to talk to a Ramtron and it s
Sample Code for LPC2148 (LPC2146/44/42/41) / I2C sample code / Uart sample code
2006-03-06 by lpc2100_fan
Hi, please check the files section: application/zip LPC214x_SampleSoftware.zip ========================== Sample Software for LPC213x/214x FIO, EXT_INT, I2C,
I2C code for LPC2148
2006-03-06 by Sutton Mehaffey
I am trying to use a RAMTRON Serial Memory chip using I2C. I have grounded the Address lines for a 000 address as well as the WP (write protect line). Does
Re: LPC2138 GPIO Pull Downs ?
2006-03-06 by pitstock_kiwi
... It seems there is and error in the data sheet or I have measured the chip wrong. I have tested on a 2148 and a 2142 and found the following. The Data sheet
2148 UART example - can anyone post code?
2006-03-06 by ah_sandiego
I am new to the 2148 and I would like to use the UART. Does anyone have some simple code to get me started? Thanks, AH
Re: uCOS-II & IAR C Compiler PLEASE HELP ME ?
2006-03-06 by eng_amrahmed2011
Ok, Please if anyone can help me, email me and i will send him the project. My Email eng.amrahmed@gmail.com ... not ... from ... and ... II/MICRIUM.rar ...
Re: [lpc2000] SPI comms with another micro
2006-03-06 by Don Ingram
... YMMV, but the MAX3100 style of device always looks like a CPU that I can t access & so I end up using a CPU that I can access instead... Less cost, better
Re: [lpc2000] SPI comms with another micro
2006-03-06 by Robert Wood
... For the third UART I could get away 9600baud.
Re: ADC input leakage current
2006-03-06 by Danish Ali
Hi Richard, Microchip do more than that - they give an explanation of why they suggest that impedance. The microchip switched-capacitor
Re: SPI comms with another micro
2006-03-06 by Guillermo Prandi
I am using *ehem* MAX3100 to talk with a GPS module from my LPC2138 s SPI0 port and I have no issues at all. I don t have the need for control lines (though
Re: [lpc2000] SPI comms with another micro
2006-03-06 by Don Ingram
... What is the max required uart bit rate? Don
Re: [lpc2000] SPI comms with another micro
2006-03-06 by Tom Walsh
... BTDT, Maxim can be a pain with finding something nice and then find out it is not in production. Seems they have a rich portfolio of ideas and wait until
Re: [lpc2000] SPI comms with another micro
2006-03-06 by Robert Wood
Hi Leon, ... also used 2313 AVRs interfaced to a PIC (using bit-banged SPI on the AVRs) when I needed several UARTS. The latter also worked very well.