Yahoo Groups archive
Thread
2005-02-01 by Rick Collins
Does anyone know of a Yahoo group for the ADI ADUC70xx ARM CPU? I could not find one by searching, but the search facility in Yahoo groups is not very good. Before I made one, I thought I would ask here since this is such a popular group. BTW, congrats to the owner of the group. This is one of the fastest growing and frequently posted technical groups I have ever seen. This is what Yahoo groups is all about!
2005-02-01 by Leon Heller
----- Original Message -----
From: "Rick Collins" <gnuarm@...> To: <lpc2000@yahoogroups.com> Sent: Tuesday, February 01, 2005 5:32 PM Subject: [lpc2000] Yahoo group for ADI ADUC70xx ARM? > > > Does anyone know of a Yahoo group for the ADI ADUC70xx ARM CPU? I > could not find one by searching, but the search facility in Yahoo > groups is not very good. Before I made one, I thought I would ask > here since this is such a popular group. > > BTW, congrats to the owner of the group. This is one of the fastest > growing and frequently posted technical groups I have ever seen. This > is what Yahoo groups is all about! Thanks, Rick. I've been surprised at how the group has developed. Leon, Moderator. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.2 - Release Date: 28/01/2005
2005-02-01 by Rick Collins
--- In lpc2000@yahoogroups.com, "Leon Heller" <leon.heller@d...> wrote: > ----- Original Message ----- > From: "Rick Collins" <gnuarm@a...> > > Does anyone know of a Yahoo group for the ADI ADUC70xx ARM CPU? I > > could not find one by searching, but the search facility in Yahoo > > groups is not very good. Before I made one, I thought I would ask > > here since this is such a popular group. > > > > BTW, congrats to the owner of the group. This is one of the fastest > > growing and frequently posted technical groups I have ever seen. This > > is what Yahoo groups is all about! > > Thanks, Rick. I've been surprised at how the group has developed. I was searching the microcontrollers category and most of the groups that have more members are PIC related. In fact, the group with the most members is for the Basic Stamp and is discontinued as Parallax has moved it to their web site. This group does have more members than groups for the 8051, the eZ8, the 68HC11 and many other popular micros. So I guess the ARM is officially chalenging the dominance of the 8 bit micros.
2005-02-01 by Onestone
Anyone have any ideas when tools and samples of the ADuC70xx will be available? I'm not overly happy with the need to go to higher end parts with the LPC to get analog I/O, and would like to run the two head to head first. Cheers Al Rick Collins wrote:
> > --- In lpc2000@yahoogroups.com, "Leon Heller" <leon.heller@d...> > wrote: > > ----- Original Message ----- > > From: "Rick Collins" <gnuarm@a...> > > > Does anyone know of a Yahoo group for the ADI ADUC70xx ARM CPU? I > > > could not find one by searching, but the search facility in Yahoo > > > groups is not very good. Before I made one, I thought I would ask > > > here since this is such a popular group. > > > > > > BTW, congrats to the owner of the group. This is one of the > fastest > > > growing and frequently posted technical groups I have ever seen. > This > > > is what Yahoo groups is all about! > > > > Thanks, Rick. I've been surprised at how the group has developed. > > > I was searching the microcontrollers category and most of the groups > that have more members are PIC related. In fact, the group with the > most members is for the Basic Stamp and is discontinued as Parallax > has moved it to their web site. > > This group does have more members than groups for the 8051, the eZ8, > the 68HC11 and many other popular micros. So I guess the ARM is > officially chalenging the dominance of the 8 bit micros. > > > > > ------------------------------------------------------------------------ > Yahoo! Groups Links > > * To visit your group on the web, go to: > http://groups.yahoo.com/group/lpc2000/ > > * To unsubscribe from this group, send an email to: > lpc2000-unsubscribe@yahoogroups.com > <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > >------------------------------------------------------------------------ > >No virus found in this incoming message. >Checked by AVG Anti-Virus. >Version: 7.0.300 / Virus Database: 265.8.2 - Release Date: 28/01/2005 > >
2005-02-01 by Rick Collins
--- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote: > Anyone have any ideas when tools and samples of the ADuC70xx will be > available? I'm not overly happy with the need to go to higher end parts > with the LPC to get analog I/O, and would like to run the two head to > head first. I am getting samples right now. I asked for 5 of the wide temperature range version ADuC7024BST62 which they are sending along with 3 of the standard temp versions that I didn't ask for. They are even sending them by FedEx. I don't understand your other comment. What is higher end about the Philips parts vs. the ADI parts? In fact, I think the Philips parts are a bit cheaper. Typically ADI tries to focus on precision and charges a bit more. In this case their ADC can do 1 MSPS at 12 bits or other vesions do a full 16 bit ADC. I have been told that the lowest cost chip starts at $5 qty 1000. I know Philips can get under that. Am I mistaken in thinking all the Philips parts have ADC? It has been awhile since I have looked at their data sheets. BTW, if this is useful to people here that's fine. But this thread might be discussed better at the ADuC_ARM group. http://groups.yahoo.com/group/ADuC_ARM/
2005-02-01 by Onestone
Rick Collins wrote: > > --- In lpc2000@yahoogroups.com, Onestone <onestone@b...> wrote: > > Anyone have any ideas when tools and samples of the ADuC70xx will be > > available? I'm not overly happy with the need to go to higher end parts > > with the LPC to get analog I/O, and would like to run the two head to > > head first. > > I am getting samples right now. I asked for 5 of the wide temperature > range version ADuC7024BST62 which they are sending along with 3 of the > standard temp versions that I didn't ask for. They are even sending > them by FedEx. > > I don't understand your other comment. What is higher end about the > Philips parts vs. the ADI parts? The comment was wrt philips parts. From the first seminar it struck me that even the smallest parts were overburdened with memory and comms peripherals, and severely lacking the sort of peripheral that I most use, ie precision timing and analog. To get analog peripherals you need to move up to the higher end of the philips range, with 32k RAM and 256k Flash, plus a second helping of comm ports of every perusasion. price is largely irrelevant, but size isn't, nor is current consumption, so the 40 pin ADuC7020 in a 6mmsq package with a 12 bit A/D and 12 bit DACs is a far better proposition than the LPc2138 with only 10 bit analog. Even the LPC2106 with 64k RAM and 128k flash is just way too much. I think I commented in the LPc2000 group that I felt they (Philips) had a very poorly planned family of parts. They are trying to move down to the middle and low ground, but still have the high end market fixation. I only want the extra processing grunt, I don't really need 32 bits, or bucket loads of memory, just a faster MSP430. ;@} > In fact, I think the Philips parts > are a bit cheaper. Typically ADI tries to focus on precision and > charges a bit more. In this case their ADC can do 1 MSPS at 12 bits > or other vesions do a full 16 bit ADC. I have been told that the > lowest cost chip starts at $5 qty 1000. Thats better than I get MSP430's for, so I'd be happy with that. I only need the very lowest end parts right now, and performance is more of an issue than price. Not necessarily raw processor speed, but peripherals, I/O etc. > I know Philips can get under > that. Am I mistaken in thinking all the Philips parts have ADC? I know that I had to go to the LPC213x to get ADC/DAC, and then only slow with juist 10 bits. I raised my views on the family planning at the Philips seminar. Needless to say they were singularly unimpressed, but I'm sure I'm not alone in my opinions in this respect. Great part, badly executed wrt memory/peripheral options. > It > has been awhile since I have looked at their data sheets. > > BTW, if this is useful to people here that's fine. But this thread > might be discussed better at the ADuC_ARM group. > > http://groups.yahoo.com/group/ADuC_ARM/ Whoops, sorry, thought I weas replying to that group, should read more closely. Bye for now. Al
> > > > > > ------------------------------------------------------------------------ > Yahoo! Groups Links > > * To visit your group on the web, go to: > http://groups.yahoo.com/group/lpc2000/ > > * To unsubscribe from this group, send an email to: > lpc2000-unsubscribe@yahoogroups.com > <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > >------------------------------------------------------------------------ > >No virus found in this incoming message. >Checked by AVG Anti-Virus. >Version: 7.0.300 / Virus Database: 265.8.2 - Release Date: 28/01/2005 > >
2005-02-01 by lpc2100_fan
Al, when you wrote this "Whoops, sorry, thought I weas replying to that group, should read more closely." You actually had the option to do exactly that, responding to the group for Analog Devices ARM chips, but you needed to tell this group once more about your previously expressed frustration that Philips does not build the part you need with high precision analog (expensive to implement). Instead they implement of many comms (cheap to implement) that you thinks the majority does not need. Guess the popularity of the LPC2000 which is reflected in this group speaks for itself. May be you want to look at the LPC2131 or LPC2132 both have 10-bit ADCs but no DAC. What about DAC through PWM? No the best analog chips around but probably close to best price performance that I know off. There is a reason why the other company is called Analog Devices and there are also reasons why those devices are popular with less people than the LPC2000 series. Guess Philips' decision with the "poorly executed" family wasn't so bad after all. Please no offense ;-) Bob
2005-02-02 by Onestone
lpc2100_fan wrote: > > Al, > > when you wrote this > "Whoops, sorry, thought I weas replying to that group, should read > more closely." I simply didn'yt see the point in swapping since Rick is in both groups. No ulterior motive. I don't expect Philips to listen to what I have to say. > > You actually had the option to do exactly that, responding to the > group for Analog Devices ARM chips, but you needed to tell this group > once more about your previously expressed frustration that Philips > does not build the part you need with high precision analog (expensive > to implement). Instead they implement of many comms (cheap to > implement) that you thinks the majority does not need. More like the bulk of the microcontroller market suggests aren't necessary. Yes Philips are doing well with this family, for good reasons. It has great bang for buck ratio, lots of memory (far too much for me) and plenty of comms. It's a common platform that will be come fairly ubiquitous over time, everybody and their uncle will know it, a bit like PICs, but all those comms have to communicate something don't they? Most often that is data gathered from sensors, with the Philips parts any price advantage, to me, is killed by the need for external circuitry. Comms and sensors are the two fastest growing fields in electronics right now. Surely it makes sense to combine them. > > Guess the popularity of the LPC2000 which is reflected in this group > speaks for itself. Yes it does, but it isn't even close in popularity to, say the PIC or AVR, and the reason for that isn't price, it is cheaper than many of the higher end parts of these families. Don't get me wrong, qwhen I first heard about the LPC2100 a year or more ago I was straight on the phone to my disti chasing samples parts info, anything. It looked like the answer to performance issues I was chasing. When the first parts were announced I was a bit disappointed by the configuration of peripherals, but thought, no, they'll test the water then come back with an assortment of peripheral mixes/sizes. But the mix they came back with was, to say the least, disappointing to me. Maybe not to anybody else, I accept that. In most popular micro families though, (and this is one reason I believe they are popular, along with cheap tools, good support etc) you find the very lowest end parts have simplest peripherals, small memory, low to medium pin count, the very highest end parts have comms, timing, analog and often other peripheral classes combined with high pin counts, large memory etc. In between there are low (20) to medium (64) pin count devices with various combinations of analog, timing and comms, all on one part, with various memory sizes. For example PIC, AVR, Ti, Mot, etc all have micros with 40 or less pins that have UART, IIC, SPI, A/D, Timer cap/com, PWM plus others like comparators etc. In a range of memory sizes. The smallest memory available with Philips is 128K flash, 16K RAM. Other than for data logging purposes I've never needed that much memory. perhaps I will with the ARM, I don't, know, but I doubt it. that is just wasted silicon from my perspective. I am going to run an LPC2138 trial, I had to go that far to get ADC and DAC, because I may yet need the full 60Mips CPU speed. But, whereas I'd envisaged this part taking over the next build of 4 or 5 existing designs, the reality is that the ADuC looks a better mixed peripheral option, and the MAXQ2000 looks like a better low end option. heck, I've got the Keil MCB2130 dev tools AND the IAR 2106 dev kit, so you can't say I wasn't keen to give it a fair go. > > > May be you want to look at the LPC2131 or LPC2132 both have 10-bit > ADCs but no DAC. What about DAC through PWM? I need 4 DACs, preferably of 16 bit resolution, although 12 bits and oversampling will work for the first stage. I'll probably end up using the 16 bit ADuC parts when they become available, but for now will settle for the 12 bit parts. Size limitations precludes external codecs. > > > No the best analog chips around but probably close to best price > performance that I know off. The prices I've been quoted so far don't reflect that. In fact the budgetary rpice I saw for 1k ADuC70xx was slightly over half the price I was quoted for a simple LPC2106. > There is a reason why the other company > is called Analog Devices and there are also reasons why those devices > are popular with less people than the LPC2000 series. They aren't available yet, and AD haven't run a world wide sales seminar as Philips has done. (I hope to hell they do!) I'd say the amount of traffic I'm seeing on the parts now reflects the LPC21xx at a similar stage in its development. > Guess Philips' > decision with the "poorly executed" family wasn't so bad after all. Poorly executed in my opinion,(which counts to noone except me) and, when they get to be in the top 3 for number of sales of micros, I'll believe they made the right choice, because I believe that they had the potential to achieve this with the improvements they've made to the core speed, and their price point. After all Microchip went from obscurity to number 1 in sales on the back of a severely brain damaged piece of silicon, and Ti showed, with the MSP430, that a well thought out family of parts could succeed beyond expectations in the market, despite the best efforts of the company not to support it at times. > > > Please no offense ;-) Bob I never TAKE offense ;?} What use would such a group as this be if we couldn't express and exchange our thoughts without acrimony? Nobody has to agree with me, and they probably don't. Al
2005-02-02 by Lasse Madsen
Does any one know of a similar forum for the Cirrus Logic ARM's? Philips_apps: Are you planning an ARM with Ethernet ? Regards Lasse Madsen
2005-02-02 by philips_apps
Yes ;-) Seriously, there is one in development but I can't tell you a lot more right now. Expect devices with USB in Q2 and with Ethernet probably in Q3. As Apps person I'm not supposed to interfere with marketing announcements. The device with Ethnernet will still have Flash and external bus unlike Cirrus, which needs external memory in any case. Will not respond with more details at this point in time. Robert --- In lpc2000@yahoogroups.com, "Lasse Madsen" <lasse.madsen@e...> wrote:
> Does any one know of a similar forum for the Cirrus Logic ARM's? > > Philips_apps: Are you planning an ARM with Ethernet ? > > Regards > Lasse Madsen
2005-02-02 by tsvetanusunov
> Yes ;-) > > Seriously, there is one in development but I can't tell you a lot more > right now. Expect devices with USB in Q2 and with Ethernet probably in Q3. this is very good news! I'm keen to see part with USB as we have three projects with USB which we still not decided which way to go - Atmel or ST. > As Apps person I'm not supposed to interfere with marketing > announcements. The device with Ethnernet will still have Flash and > external bus unlike Cirrus, which needs external memory in any case. What I love in Philips marketing is that they start to advertize product when they really have it :) Atmel had an massive SAM7 advertizing (sub $3 ARM buzz), and when we decide to include SAM7 boards to our development boards range and ordered couple of thousands SAM7 microcontrollers which were on Atmel flyer as "producton NOW' and "production Q4-04" we found: one of the items is in 'regular production' and have 12 weeks delivery time i.e. we'll get ICs no earlier than April-May this year, the other will be in 'regular production' in May i.e. delivery not earlier than July- August. We always get our Philips LPC parts from stock or max 4 weeks, so they are device of first choice when start new project. Keep the good work! Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) Development boards for ARM, AVR, PIC, and MSP430 (http://www.olimex.com/dev)