RE: [lpc2100] Audio DAC
2004-02-11 by Jan Szymanski
To interface to MMC or SD card is very easy and if you use SPI than very little of processor power is needed. I2S can be done with CPLD
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Re: [lpc2100] Audio DAC
2004-02-11 by Robert Buadu
The LPC2106 is powerfull enough to decode mp3. The Helix mp3 code runs at 30MHz on the arm7 core, so there is a lot processing power to spare. If one can find
MAX8882
2004-02-11 by leon_heller
I just got some price and delivery information from Maxim UK. The MAX8882EUTA5 chip I m interested in is on 7 weeks delivery. Minimum quantity they will supply
RE: Re[6]: [lpc2100] Audio DAC
2004-02-11 by Jan Szymanski
Thanks, I didn t have any luck yet with access (although already registered) , but will keep trying. As for I2S see
Re: [lpc2100] Audio DAC
2004-02-11 by Alaric B Snell
... I m looking at the MAS3587F MP3 codec. You control it with I2C, then feed data in and out via an 8-bit parallel interface with 5 control bits. I m thinking
Re: Re[2]: [lpc2100] Audio DAC
2004-02-11 by Leon Heller
... From: Peter Kuhar To: Robert Buadu Sent: Wednesday, February 11, 2004 7:20 AM Subject: Re[2]:
Re[6]: [lpc2100] Audio DAC
2004-02-11 by Peter Kuhar
https://datatype.helixcommunity.org/mp3dec.html You must register and use CVS /Pero
RE: Re[4]: [lpc2100] Audio DAC
2004-02-11 by Jan Szymanski
Thanks, can you give me a link and/or more information, where can I find it, as it is of interest to me. Janek ... From: Peter Kuhar
Re[2]: [lpc2100] Audio DAC
2004-02-11 by Peter Kuhar
... Any sugestions? :) /Pero
Re: [lpc2100] Audio DAC
2004-02-11 by Robert Buadu
... Well if you are doing it in software and your clock is 60MHz then it is a bit fast. ... Hey, that s pretty cool. ... That sounds interesting. If you can
Re[4]: [lpc2100] Audio DAC
2004-02-11 by Peter Kuhar
... Yes i used the fixed-point code from helixcode /Pero
RE: Re[2]: [lpc2100] Audio DAC
2004-02-11 by Jan Szymanski
Have you done any mp3 decoding in software ? Janek ... From: Peter Kuhar [mailto:peter.kuhar@guest.arnes.si] Sent: Wednesday, February 11, 2004 16:48 To:
Re[2]: [lpc2100] Audio DAC
2004-02-11 by Peter Kuhar
... It s not actualy that fast 256*fs means that clock is 256*44100 11.286600 MHz A managed to connects philips DAC (in 16 bit left-aligned mode which is close
Re: [lpc2100] Audio DAC
2004-02-11 by Robert Buadu
Here are some thoughts: I ve looked at conecting an I2S audio DAC to the LPC21xx. This is what I ve concluded. I2S is a serial interface similar to SPI. The
Re: Problem with word / dword - access...
2004-02-10 by robertadsett
... tend to assume all bets ... just a pessimist. AFAIR the only guarantee C give is if you assign any given pointer to a void pointer and back again you will
Re: [lpc2100] Problem with word / dword - access...
2004-02-10 by David Willmore
... On the ARM as defined by DDI0100E_ARM_ARM.pdf in section 1.2.1 of Part B, page 482, it says: 1.2.1 memory systems, write buffers and caches ARM processors
Re: MAX8882 LDO dual regulator
2004-02-10 by janek_szymanski
Linear regulators are the simple, but not efficient. When you really want to save power, you have to use rather switchmode supply. janek ... from ...
Re: [lpc2100] Problem with word / dword - access...
2004-02-10 by Ben Dooks
... This is defined behaviour on ARM systems. The newer cores do have an ability to issue an abort when an unaligned access is detected, but this needs to be
RE: [lpc2100] Problem with word / dword - access...
2004-02-10 by Jan Szymanski
Try the following instead: union { char c[256]; short i[128]; long l[64]; }mydata; otherwise you have to align 4 ... From: lpc2100@web.de
Problem with word / dword - access...
2004-02-10 by lpc2100@web.de
Hello, i have a problem with word / dword - access when the address is not even / devideable through 4. When i let run the below program i get the following
RE: [lpc2100] Delay routines
2004-02-10 by Robert Adsett
... I did say I was going to improve the timing routines. I have, and release 2 of the newlib support routines is available at
MAX8882 LDO dual regulator
2004-02-10 by Leon Heller
The two MAX8882EUTA5 1.8V/3.3V dual LDO regulator samples I ordered from Maxim UK yesterday turned up this morning. I ve just finished assembling a little test
Re[2]: [lpc2100] Eval Card Update
2004-02-10 by Peter Kuhar
You can try Rehar, Tomaz /Pero
Re: [lpc2100] Eval Card Update
2004-02-10 by Alaric B Snell
... If you still have four of them in a month I m going to take you up on that! ... ABS
Re: [lpc2100] Eval Card Update
2004-02-10 by Leon Heller
... From: Alaric B Snell To: Sent: Tuesday, February 10, 2004 11:11 AM Subject: Re: [lpc2100] Eval Card
Re: [lpc2100] Eval Card Update
2004-02-10 by Alaric B Snell
... You managed to get some LPC2106es? Wow, they re like rocking horse droppings around here in the UK! /me tries again to get a response out of
Audio DAC
2004-02-10 by Peter Kuhar
Hello, Has anyone connected audio DAC to LPC210x? /Pero
Eval Card Update
2004-02-10 by J.C. Wren
There is now a final rough draft of the eval card schematic at The 1-wire interface is not complete.
Re[2]: [lpc2100] Re: ETM and IO pins in debug mode
2004-02-09 by Peter Kuhar
I you plan to use secodary JTAG: - Seconday JTAG is enabled in software so you need same other way(UART) to program it for the first time. Pero
Re: [lpc2100] Re: ETM and IO pins in debug mode
2004-02-09 by Alaric B Snell
... I know - that s the one I *have* researched, since I plan to do it. I ve skimmed over the JTAG stuff, however! Lots of people seem to be interested in the
Re[2]: [lpc2100] Re: ETM and IO pins in debug mode
2004-02-09 by Peter Kuhar
If you re going to use UART ISP, just connect max3232 touart ena and use lpc21xx isp utility. ISP is enter by holding P0.14 low during reset. All other pins
Re: [lpc2100] Re: ETM and IO pins in debug mode
2004-02-09 by Alaric B Snell
... I ve not yet read that section of the LPC manual in detail (I aim to use the UART for ISP rather than JTAG), so would anyone fancy writing a short
Re: LPCC footprint and assembly
2004-02-09 by Jim Beagley
... lpcc.pdf. ... Leon, A method I use to solder these packages is to use your finest tip, then take a small piece of wire, cut it at an angle so the tip is
Re: ETM and IO pins in debug mode
2004-02-09 by Jim Beagley
... Helge, To use those pins durring debug, you must use the secondary JTAG port, to do this you must have connections for BOTH primary, and secondary JTAG
Re: [lpc2100] Re: ETM and IO pins in debug mode
2004-02-09 by Peter Kuhar
As I know JTAG uses pin 0.17 to 0.21. Those are primary JTAG pins. If you use secondary jtag pins, you get some pins othervise used by ETM freed. Secondary
Re: ETM and IO pins in debug mode
2004-02-09 by Helge Fabricius-Hansen
Is there no way to disable the ETM to be able to use the IO pins? If not, I need to make a new target... //Helge ... JTAG
Re: [lpc2100] ETM and IO pins in debug mode
2004-02-09 by Peter Kuhar
Those pins are used for debuging, and can t be used during debuging.
ETM and IO pins in debug mode
2004-02-09 by Helge Fabricius-Hansen
Hi, In the manual it says that the ETM pins (P0.22-P0.32) are active when DBGSEL and RTCK is high during RESET! I am reading page 72 and page 206 in the
Re: NEC 1.8V and 3.3V Dual Regulator for LPC2100
2004-02-09 by leon_heller
... I ve just ordered a couple of sample MAX8882EUTA5 (3.3 V and 1.8 V) from Maxim UK; I should get them tomorrow. I ll make a little PCB to test them. Leon
Re: NEC 1.8V and 3.3V Dual Regulator for LPC2100
2004-02-09 by Chetan Bhargava
Maxim has couple of dual LDOs: MAX8882 MAX8883 Much smaller and easily available as compared to NEC. Delivers 160ma in a sot 23 package. Regards, Chetan
Re: [lpc2100] Re: LPCC footprint and assembly
2004-02-08 by Leon Heller
... From: Joseph Tapay To: Sent: Sunday, February 08, 2004 6:27 PM Subject: Re: [lpc2100] Re: LPCC footprint
Re: [lpc2100] Re: LPCC footprint and assembly
2004-02-08 by Joseph Tapay
yes, strange, on philips s site http://www.semiconductors.philips.com/products/ General Product Info/Package Info (javascript) search for LPCC has no results
Re: [lpc2100] Re: LPCC footprint and assembly
2004-02-08 by Leon Heller
... From: Joseph Tapay To: Sent: Sunday, February 08, 2004 4:16 PM Subject: Re: [lpc2100] Re: LPCC footprint
Re: [lpc2100] Re: LPCC footprint and assembly
2004-02-08 by Joseph Tapay
this is getting mysterious... philips in her November 2003 linecard http://my.semiconductors.philips.com/acrobat/literature/9397/75012354.pdf does not list any
Re: LPC210x Flash Utility with RTS/DTR Control
2004-02-08 by haack0815
Hi jc, the DTR signal drives the Reset signal and RTS is used for P0.14 Andreas ... pin
Re: General JTAG Questions
2004-02-08 by leon_heller
... decide to ... The LPC210x User Manual has a description. RTCK is only used for the ARM Multi-ICE, apparently. ... two ... like to ... Leon
Re: [lpc2100] Evalulation Card Update
2004-02-08 by martin de lange
This might throw a spanner into your works at this last stage of design but why do you not use the 2129 part as it has ADC built in with lot s of IO and you
General JTAG Questions
2004-02-08 by J.C. Wren
I notice the IAR eval board has a couple of 244 buffers. What exactly does the header on their board connect to? An intermediate device, or the parallel
Re: [lpc2100] LPC210x Flash Utility with RTS/DTR Control
2004-02-08 by J.C. Wren
Richard, Can you check this schematic again? On a DB-9, pin 4 is DTR and pin 7 is RTS. These are reversed on the schematic. Is DTR intended to drive P0.14
Re: [lpc2100] Re: LPC21xx Manual location?
2004-02-08 by J.C. Wren
The *easiest* method is to type LPC2106 into Google, and click on the first link. Same for LPC2124. They ll take you right to the Philips page for that