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Groups > comp.arch.embedded > #13372
| From | rickman <gnuarm@gmail.com> |
|---|---|
| Newsgroups | sci.electronics.design, comp.arch.embedded |
| Subject | Re: AREF bypass capacitance on ATMega2560? |
| Date | 2013-09-07 19:38 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <l0gdf2$vgk$1@dont-email.me> (permalink) |
| References | (12 earlier) <b917s1F2k40U1@mid.individual.net> <l0fspa$3ot$1@dont-email.me> <b91docF3r46U1@mid.individual.net> <l0g38d$9ad$1@dont-email.me> <b91lacF5bvnU1@mid.individual.net> |
Cross-posted to 2 groups.
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. >> ... Projects have design requirements. I often am able to meet >> my design requirements with an FPGA and no MCU. I often can't say the >> opposite, being able to use an MCU without the FPGA. >> >> >>>>> $3.02 with 12wks leadtime at Arrow: >>>>> >>>>> http://components.arrow.com/part/detail/51425505S8988412N7713?region=na >>>>> >>>>> ROM is included. >>>> >>>> ROM is not Flash.. is it? Are you thinking in terms of a mask ROM? >>>> >>> >>> You can use the bootloader or OTP your own bootloader if you don't want >>> to store your programming in ROM. In most situations this is part of a >>> larger computerized system from where it can download its programming. >> >> That's a different wrinkle. It is common to have a micro load an FPGA, >> many don't contain their own Flash. But I haven't seen this done with >> DSPs as often and almost never with MCUs. But if that works for your >> project, great. You certainly wouldn't have a problem loading an FPGA >> then. >> > > 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. >>>>>>>> ... 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. >> I have already explained that I would never do a design in an FPGA to >> wholly incorporate a DSP or MCU. That would be absurd. So why do you >> keep asking about that? >> > > Because you wrote yesterday, quote "For $3 however, you can get a chip > large enough for a CPU (with math) and room for your special logic". I said "a CPU" not "any CPU". I never said it would duplicate a commercial device. I'm talking about function. >> 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. >> 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. 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. I don't care where you are located, if you can't find an FPGA designer, you aren't looking very hard. >>>> 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. >> 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. >> 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. >>> 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. >>> One project will probably require something of the caliber of a >>> MSP430F6733. Whether this kind or a DSP, what is key is that we are able >>> to use pre-coooked library routines. In my case for complex (I/Q) signal >>> processing, FFT, non-linear filtering and so on. Sometimes legacy >>> routines must be kept and in an FPGA that would require an IP block that >>> can emulate the respective processor well enough. >> >> Ok, that is likely a no-go. If you really want to emulate a DSP chip >> then an FPGA is not likely to be a useful way to proceed. Wanting to >> run DSP precompiled library code is a bit of an extreme requirement. If >> the customer wants a DSP, then by all means give them a DSP. But don't >> automatically exclude an FPGA from the task. >> > > Sometimes it would also be ok if there were similar pre-cooked FPGA > routines (I/Q signal processing, non-linear filters et cetera). There are design tools that will generate function blocks, filters, etc. I have not had to deal with them. The DSP stuff I have done I just coded up in HDL. >>> 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. I don't think there is anything like the 8051 other than the 22V10 perhaps. The 8051 is an anomaly in the MCU world. 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. -- Rick
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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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