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Groups > comp.arch.embedded > #13381
| From | Joerg <invalid@invalid.invalid> |
|---|---|
| Newsgroups | sci.electronics.design, comp.arch.embedded |
| Subject | Re: AREF bypass capacitance on ATMega2560? |
| Date | 2013-09-08 07:41 -0700 |
| Organization | Consultant |
| Message-ID | <b93gkkFgo0sU1@mid.individual.net> (permalink) |
| References | (13 earlier) <l0fspa$3ot$1@dont-email.me> <b91docF3r46U1@mid.individual.net> <l0g38d$9ad$1@dont-email.me> <b91lacF5bvnU1@mid.individual.net> <l0gdf2$vgk$1@dont-email.me> |
Cross-posted to 2 groups.
rickman wrote: > On 9/7/2013 5:48 PM, Joerg wrote: >> rickman wrote: >>> On 9/7/2013 3:39 PM, Joerg wrote: >>>> rickman wrote: >>>>> On 9/7/2013 1:59 PM, Joerg wrote: >>>>>> rickman wrote: >>>>>>> On 9/7/2013 11:10 AM, Joerg wrote: >>>>>>>> For example, this: >>>>>>>> >>>>>>>> http://www.ti.com/lit/ds/symlink/tms320c5535.pdf >>>>>>> >>>>>>> I don't see it for $3. Did you get a quote for your project? TI >>>>>>> says >>>>>>> it is $5 to $8 at qty 1k depending on the flavor. You still need >>>>>>> to add >>>>>>> Flash. >>>>>>> >>>>>> >>>>>> 1k qty is $3.67 at Digikey: >>>>>> >>>>>> http://www.digikey.com/product-detail/en/TMS320C5532AZHH10/296-32741-ND/2749713 >>>>>> >>>>>> >>>>>> >>>>> >>>>> Not the same part pal. You're trying to pull a fast one on me? >>>>> Are we >>>>> talking about the TMS320C5535 with "tons" of memory or the TMS320C5532 >>>>> with *much* less memory? >>>>> >>>> >>>> It doesn't have the single access RAM but it does have 64k dual access >>>> RAM. That's a lot of RAM in embedded. >>> >>> You do this often. Start talking about one thing and shift the context >>> to another. ... >> >> >> I didn't. I said it is a DSP with large memory, which it is. > > You first give a part, the C5535, as the chip with big memory, then it > becomes the C5532 which is less memory and less expensive. I can't tell > what you are talking about when the subject changes. > There are no subject changes. Did you even click on the link? The datasheet is for the _whole_ series, _including_ the 5532. It clearly says so in the first line on the first page. [...] > >> The fact that most FPGA don't have flash is fine ... but ... there must >> be a decent bootloader inside. In one of the upcoming projects it must >> be able to bootload via USB. So the device must wake up with a certain >> minimum in brain functionality to handle the USB stuff. With FPGA that >> can become a challenge unless you provide a serial memory device (which >> adds cost). > > No, you won't find any FPGAs which can wake up talking over USB. But > you will find FPGAs with internal Flash if you wish to design a USB > bootloader. > Then one of those would be required I guess. USB connectivity is important these days. > >>>>>>>>> ... It has been a while since I >>>>>>>>> looked >>>>>>>>> hard at DSP chips, but I don't recall any I would call remotely >>>>>>>>> "big" >>>>>>>>> for $3. The TI chips that would be "big" are the TMS6xxx line >>>>>>>>> which >>>>>>>>> start somewhere around $20 the last time I looked and that >>>>>>>>> requires >>>>>>>>> all >>>>>>>>> memory and I/O to be separate. The smaller DSP chips that you >>>>>>>>> can get >>>>>>>>> for the $3 range are not "big" in any sense and only a very few of >>>>>>>>> them >>>>>>>>> include Flash memory. So you still need another chip. >>>>>>>>> >>>>>>>> >>>>>>>> It has tons of memory on board. >>>>>>> >>>>>>> Yes, and many FPGAs have "tons" of memory on board although not for >>>>>>> $3... but then this isn't a $3 part either... >>>>>>> >>>>>> >>>>>> It is a $3 part. See above. >>>>> >>>>> No, you need to pick a part number and stick with it. >>>>> >>>> >>>> I gave a part number. Still waiting for your $3 FPGA part number :-) >>> >>> Actually you gave me two part numbers, one for $5 and one for just over >>> $3. What's your point? I gave you info to find the iCE40 line. Xilinx >>> also makes FPGAs that are very affordable and does Altera and Lattice. >>> >> >> Both of the ones I gave you are $3. The DSP costs $3.02 and the MSP430 >> is $3.09. These are over-the-counter no-haggle prices. Can a $3 iCE40 >> device emulate a TMS320 or a big MSP430? I can't tell because I don't >> know this Lattice series and I am not an FPGA expert. But it sure looks >> like they'd have a hard time. > > No, the C5535 part is not $3. That is what I mean by two part numbers. > The C5532 is $3. That is the part in the Digikey link I gave. Datasheets are often for a whole series, economy to deluxe. I thought that became clear when you looked at the datasheet. [...] >>> Depending on your design requirements there are any number of FPGAs that >>> will do the job and some may be $3. What are your design requirements? >>> >> >> As I said, I do not have any hammered out ones yet but it'll come. This >> was just about you $3 claim. So I gave some examples of devices that >> cost $3. > > Yes, and there are FPGAs in that price range which can be used to > implement a CPU plus other logic. > Well, yeah, but we were talking about an appropriate and similarly classed CPU, not a 30c 8-bitter from China. > >>> I understand the concept of work that can't be moved. You don't need to >>> continue to explain that. I was asking why you said most of your word >>> didn't have that requirement and yet you still were debating the point. >>> Now I get it, you are talking about two different things, work that >>> can >>> be moved and work that can't be moved. >>> >> >> Yup. Hence the need for availability of local programmer talent. Less >> local availability means potential problems. That is because (where >> possible) I like to use architectures I am familiar with. >> >> Programmer talent means longterm. For example, if a client has an issue >> with an 8051 design long after the original programmer has moved on I >> could find programmers within a 10-mile radius. Try that with an FPGA. >> In San Jose it may be possible but not out here. > > I can't speak of your environment. I know my friend of many years > stayed away from FPGAs in spite of the fact that he is a very capable > designer. He finally paid me for a week of FPGA design work which I > then turned over to him and helped him get started with HDL. It's not > hard at all. You don't really need anyone special. That is the sort of > thinking I am trying to dispel. > For you it may be easy. I am somehow not the kind of guy that easily learns programming languages. Human languages, yes. Really weird analog or RF tricks, yes. C, C++ or HDL, not really. I can read through code to some extent but it is like having to plow through a document in Portuguese (which I had to do). > Another example. A software designer came to a newsgroup looking for > info on programming FPGAs. He used the mindset of a software guy and > wanted to do a "hello world" program. We tried to explain to him that > hardware isn't software and HDL isn't C. But he persisted and I gave > him advice over a week or so. I tried to turn it into a consulting gig > but his bosses didn't want to pay the bucks. He ended up doing just > fine with his software mindset and convinced his boss to pay me $500 > over my protests. I cashed the check when it came. > > The point is that FPGAs are not so hard that you need a unique talent to > design them. That may have been true 10+ years ago, but they are very > mainstream now and much easier to work with. I bet even *you* could do > an FPGA design, lol. > Maybe, but it'll take a while. I did some uC programming though so maybe that helps. > I don't care where you are located, if you can't find an FPGA designer, > you aren't looking very hard. > In Cameron Park? Most if not all FPGA guys out here work for Intel, they won't have time for consulting gigs and may not even be allowed to do it. > >>>>> Not sure what the requirements are for your CODEC, but I have been >>>>> using >>>>> the AKM parts with good results. Minimal or *no* programming, >>>>> configuration is done by a small number of select pins, very >>>>> simple. I >>>>> have yet to find another one as small, AK4552, AK4556. >>>>> >>>> >>>> Plus their prices are quite good. >>> >>> Which, AKM or the other? I'd like to think I can get a CD quality CODEC >>> for $3 from nearly anyone. I mainly picked AKM because of the size, 6x6 >>> mm without going to a microBGA. >>> >> >> AKM has good prices. > > Ok. I have no complaints on prices. Their lead time can be a problem. > I had a conversation, disti, manufacturers guy and me. I was > complaining about a 14 week lead time and he bragged that a 14 week lead > time was *good*. I give my customers a 10 week lead time... see the > problem? Digikey sell them now so it is not such an issue. I even > ended up speaking with a buyer or planner who was coordinating the > shipment of an order last spring. Once you reach them they are very nice. > Yes, Digikey has them. My rule is that if Digikey doesn't have something I try to avoid the part. Except for Coilcraft. > >>> High 10's or low 10's. Up to say, 20 or 30 ksps is easy to do in an >>> FPGA with decent resolution, 12 bits. Getting 16 bits is harder, I've >>> not tried it, but should be possible. >>> >> >> Mostly I need 40-50ksps. But 20 is often ok. > > I haven't done 12 bits at 50 ksps, but I expect it is doable. Just > cross the t's and dot the i's. > It's not just getting it done in principle but also to yield at least 10.5bits ENOB or so at that speed. Even with uC that can be a challenge. > >>> I was looking at using a LVDS input for a comparator and Xilinx did it >>> in a demo of a SDR. They are very short on details, but they talk about >>> 1 mV on the input. I know that's not anything special, I'm hoping to do >>> better, much better. >>> >> >> If you can keep substrate noise in check it could work. Try to remain >> fully differential as much as you can. Not sure if FPGA design suites >> still let you hand-place blocks so you can avoid making a big racket >> right next to the ADC area. > > *Everything* in an FPGA makes noise, it's all digital. Yes you can hand > place logic if you want. That is the sort of thing best done at the end > if possible when you are ready to finalize the chip. But what would you > have in an FPGA design that makes more noise than anything else? Each > logic block is very small and has a pretty low power consumption. It > would be the I/O that has significant power spikes and you have total > control over that. > What sometimes causes issues are FLL or PLL in there to create the master clock. But I only know that from uC. With FPGA we had EMI problems and sometimes they required unorthodox measures. Had the same thing with a discrete RAM bank: We had to run other parts in the FPGA as dummy loads, ping-pong style, to reduce the noise energy. Their FPGA guy almost threw me out of his cubicle when I suggested that but then it worked. He bought me a coffee at the cantina :-) > >>>> I wasn't referring to a specific project, just your claim that FPGA can >>>> do the same job as processors at the same price. >>> >>> Yes, that is my claim. The obvious exception is when some feature is >>> needed that just isn't available in an FPGA. I'm not saying *every* >>> project can be done better in an FPGA. I'm saying that designers tend >>> to just not consider FPGAs when they are often viable solutions. >>> >> >> In most of my apps I need much of the functionality that a decent uC >> affords, like the $3 device from the MSP430 series I mentioned. > > If you need 256 kB of memory then you won't reach a $3 price tag. If > you need something more like the low end processor you mentioned that > might be doable in the low end FPGAs. They have block RAM, but it > scales with the size of the chip. When you have a specific requirement > we can look and see what matches. > It'll be a while until I know for sure. Because whether or not I need some massive compensator routine depends on the performance of a complicated mechanical part that we won't have before spring next year. [...] >>>> But what I see most is this: The respective client has in-house talent >>>> for writing code. They are familiar with a particular architecture, >>>> have >>>> a vast arsenal of re-usable code built up, and naturally they do not >>>> wish to give this up. If it's a dsPIC like last year, then that goes in >>>> there. If it's Atmel and MSP430 like this year, then that is used. Has >>>> to be, the customer is king. >>> >>> Yeah, well that is a deal killer for *any* other alternative. That is >>> not related to what I was saying. My point is that if you don't have >>> any specific requirement that dictates the use of a given chip, an FPGA >>> has as good a chance at meeting the requirements as an MCU or DSP. In >>> fact, FPGAs are what get used when DSPs aren't fast enough. My point is >>> you don't have to limit them to the high end. They also do very well at >>> the low end. >>> >> >> No disagreement there, programables have come a long way since the days >> of GALs. Which I never used because they were expensive power guzzlers. >> >> One other challenge that needs to be met in most of my cases is >> longevity of the design. A FPGA would have to remain available for more >> than just a few years. For example, one of my uC-based designs from the >> mid 90's is still in production. Since I kind of had a hunch that this >> would happen I used an 8051 family uC. Is there something similar in the >> world of FPGA? > > That is typically not a problem, but pick a device that is relatively > new to start with. The vendors are *all* about their latest and > greatest products. I guess they need a critical mass of design wins up > front which they get revenue from over the life of the part. So they > push the newest stuff and let you ask about the older parts. > As long as they do not require a formal RFQ from the (not yet existing) purchasing department of the company. Then I'd walk. No kidding, this happened on a programmable device in the 90's. > I don't think there is anything like the 8051 other than the 22V10 > perhaps. The 8051 is an anomaly in the MCU world. ... Not an anomaly, it was bound to happen. There are many areas where 2nd source is a must. The usual paranoia by manufacturers that this puts downward pressure on the price was debunked by this very uC. It is the only gripe I have with it, that it is expensive compared to more modern ones. But you have no choice if there must be a 2nd source and they know it. So it was also not very surprising that "Hayabusa editions" came out, screaming along around 100MHz. > ... You won't see a DSP > equivalent for example. So far users typically want more, more, more > from FPGAs. So a stationary design would not have a market. Even > though there are ever larger markets for low end parts, they keep > redesigning them to make them cheaper. When they do that they add > incompatibility because it doesn't affect the bulk of the users, > recompile and you are good to go. But pin compatibility, no, that just > doesn't exist other than within a single family. Fortunately product > life is typically not an issue. > It is for me. In the old days we preferred Analog Devices DSP (2110? Forgot the part number) because they were the staple. We just used lots of them per board. Cheap, too. Come to think of it, most of my designs where there was a DSP it cost around $5-10, nowadays they are down to around $3. It's not very expensive anymore but finding a programmer to work locally can be tough. -- Regards, Joerg http://www.analogconsultants.com/
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AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-08-19 13:14 -0700
Re: AREF bypass capacitance on ATMega2560? John Devereux <john@devereux.me.uk> - 2013-08-20 20:16 +0100
Re: AREF bypass capacitance on ATMega2560? Vladimir Vassilevsky <nospam@nowhere.com> - 2013-08-21 14:47 -0500
Re: AREF bypass capacitance on ATMega2560? Jim Stewart <jstewart@jkmicro.com> - 2013-08-21 13:18 -0700
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-08-21 16:38 -0700
Re: AREF bypass capacitance on ATMega2560? "Tim Williams" <tmoranwms@charter.net> - 2013-08-21 21:30 -0500
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-08-22 10:51 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-06 16:26 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-06 13:33 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-06 17:12 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-06 16:10 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-06 23:59 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 08:10 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 13:03 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 10:59 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 14:54 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 12:39 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 16:44 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 14:48 -0700
Re: AREF bypass capacitance on ATMega2560? "Tim Williams" <tmoranwms@charter.net> - 2013-09-07 17:10 -0500
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 15:34 -0700
Re: AREF bypass capacitance on ATMega2560? Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2013-09-08 00:57 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 16:56 -0700
Re: AREF bypass capacitance on ATMega2560? Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2013-09-09 17:07 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-09 10:19 -0700
Re: AREF bypass capacitance on ATMega2560? Paul <paul@pcserviceselectronics.co.uk> - 2013-09-09 20:27 +0100
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-09 12:55 -0700
Re: AREF bypass capacitance on ATMega2560? Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2013-09-11 09:44 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-11 07:27 -0700
Re: AREF bypass capacitance on ATMega2560? Stef <stef33d@yahooI-N-V-A-L-I-D.com.invalid> - 2013-09-13 12:42 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-14 11:56 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 19:38 -0400
Re: AREF bypass capacitance on ATMega2560? Paul Rubin <no.email@nospam.invalid> - 2013-09-07 17:39 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 23:20 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 07:41 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-07 11:17 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 13:23 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 11:19 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-08 14:03 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 19:42 -0400
Re: AREF bypass capacitance on ATMega2560? Paul Rubin <no.email@nospam.invalid> - 2013-09-08 17:18 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-09 13:13 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-10 20:21 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-10 23:42 -0400
Re: AREF bypass capacitance on ATMega2560? John Devereux <john@devereux.me.uk> - 2013-09-07 09:24 +0100
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 10:00 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-07 11:32 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 13:35 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 11:30 -0400
Re: AREF bypass capacitance on ATMega2560? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2013-09-09 09:56 -0400
Re: AREF bypass capacitance on ATMega2560? Robert Wessel <robertwessel2@yahoo.com> - 2013-09-12 11:50 -0500
Re: AREF bypass capacitance on ATMega2560? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2013-09-12 15:06 -0400
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-12 14:57 +0200
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-13 00:21 -0400
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-13 14:08 +0200
Re: AREF bypass capacitance on ATMega2560? Tom Gardner <spamjunk@blueyonder.co.uk> - 2013-09-13 15:15 +0100
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-13 11:46 -0400
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-13 18:43 +0200
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-13 19:14 +0200
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-13 15:26 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-13 15:24 -0400
Re: AREF bypass capacitance on ATMega2560? David Brown <david.brown@removethis.hesbynett.no> - 2013-09-13 20:22 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 09:32 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 13:44 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 12:46 -0700
Re: AREF bypass capacitance on ATMega2560? Paul Rubin <no.email@nospam.invalid> - 2013-09-07 13:33 -0700
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 13:46 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 17:05 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 15:23 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 19:02 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 16:45 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 23:16 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 08:05 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-08 14:27 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 12:56 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-10 23:07 -0400
Re: AREF bypass capacitance on ATMega2560? Tom Gardner <spamjunk@blueyonder.co.uk> - 2013-09-11 10:05 +0100
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-11 07:49 -0700
Re: AREF bypass capacitance on ATMega2560? Paul <paul@pcserviceselectronics.co.uk> - 2013-09-11 16:54 +0100
Re: AREF bypass capacitance on ATMega2560? "Tim Williams" <tmoranwms@charter.net> - 2013-09-11 11:25 -0500
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-11 09:49 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 11:40 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 11:38 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 09:34 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-08 14:29 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 13:01 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 16:22 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-10 23:09 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 16:15 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 14:20 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 18:15 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 15:57 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 19:46 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-08 17:15 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 20:20 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-09 07:17 -0700
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-09 12:17 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-09 19:30 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-09 16:38 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-10 14:02 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-10 23:41 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-11 00:04 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-11 07:53 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-11 21:50 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-12 09:58 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-12 18:54 -0400
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-12 16:17 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-12 10:03 -0700
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-12 19:24 +0200
Re: AREF bypass capacitance on ATMega2560? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2013-09-12 20:38 +0300
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-12 11:23 -0700
Re: AREF bypass capacitance on ATMega2560? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2013-09-12 22:36 +0300
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-12 12:41 -0700
Re: AREF bypass capacitance on ATMega2560? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2013-09-12 23:08 +0300
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-12 11:19 -0700
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-12 18:59 -0400
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-13 13:00 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-14 12:05 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-12 16:03 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-12 14:42 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-13 00:24 -0400
Re: AREF bypass capacitance on ATMega2560? Piotr Wyderski <peter.pan@neverland.mil> - 2013-09-13 14:27 +0200
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-14 12:07 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-15 02:26 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-15 09:51 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-13 20:06 -0400
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 16:50 -0400
Re: AREF bypass capacitance on ATMega2560? Paul Rubin <no.email@nospam.invalid> - 2013-09-07 14:33 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 19:07 -0400
Re: AREF bypass capacitance on ATMega2560? Paul Rubin <no.email@nospam.invalid> - 2013-09-07 16:31 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 23:38 -0400
Re: AREF bypass capacitance on ATMega2560? Paul Rubin <no.email@nospam.invalid> - 2013-09-08 20:19 -0700
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-10 23:36 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 11:46 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 11:36 -0400
Re: AREF bypass capacitance on ATMega2560? John Devereux <john@devereux.me.uk> - 2013-09-08 09:04 +0100
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-08 13:42 -0400
Re: AREF bypass capacitance on ATMega2560? John Devereux <john@devereux.me.uk> - 2013-09-08 19:04 +0100
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-08 07:29 -0400
Re: AREF bypass capacitance on ATMega2560? John Devereux <john@devereux.me.uk> - 2013-09-09 08:56 +0100
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-10 23:54 -0400
Re: AREF bypass capacitance on ATMega2560? krw@attt.bizz - 2013-09-08 16:24 -0400
Re: AREF bypass capacitance on ATMega2560? Ulf Samuelsson <ulf_samuelsson@invalid.telia.com> - 2013-09-07 20:11 +0200
Re: AREF bypass capacitance on ATMega2560? rickman <gnuarm@gmail.com> - 2013-09-07 15:06 -0400
Re: AREF bypass capacitance on ATMega2560? Joerg <invalid@invalid.invalid> - 2013-09-07 12:54 -0700
Re: AREF bypass capacitance on ATMega2560? Ulf Samuelsson <ulf_samuelsson@invalid.telia.com> - 2013-09-02 22:27 +0200
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