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Helpful ReplyHot!Is MCHP still developing the PIC32?

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friesen
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Re: Is MCHP still developing the PIC32? 2020/05/15 12:35:10 (permalink)
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One grossly missing item on the MZ (edited DA) series is floating point.
 
I have two decent projects with the MZ and one with the STM32F7.  My dumb user perspective is that the STM32 does everything faster aside from direct IO manipulation.
 
I don't know about the newer MZ's, but I'm pretty sure the ddr bus is somewhat bandwidth limited, for sure to certain peripherals.
post edited by friesen - 2020/05/15 12:40:29

Erik Friesen
#41
realexander
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Re: Is MCHP still developing the PIC32? 2020/05/15 12:39:05 (permalink)
5 (2)
Huh? The PIC32MZ EF chips all have floating point coprocessors.
 
- Bob
 
#42
friesen
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Re: Is MCHP still developing the PIC32? 2020/05/15 12:40:03 (permalink)
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Sorry, I meant the MZ DA series.

Erik Friesen
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NorthGuy
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Re: Is MCHP still developing the PIC32? 2020/05/15 12:44:10 (permalink)
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friesen
I don't know about the newer MZ's, but I'm pretty sure the ddr bus is somewhat bandwidth limited, for sure to certain peripherals.



It is not bandwidth limited. It is designed for fast consecutive access. Random access is very slow. Thus you need big caches (as on PC) to make it work fast. Or you can access it in consecutive fashion. That's the price you ought to pay for having huge memory for low cost.
#44
karpouzi
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Re: Is MCHP still developing the PIC32? 2020/05/19 11:45:07 (permalink)
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I think it's a pity that Microchip gave up on PIC32. There is a huge class of PIC developers who would like 32-bit options without migrating to a completely different manufacturer, toolchain, IDE, programmer, peripherals, documentation etc. That is why Microchip gave up on their pointless idea to rename an ATSAM line as PIC32C. PIC32MZ EF is a great line of chips. I don't care that the core is MIPS instead of ARM, it performs well.
#45
friesen
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Re: Is MCHP still developing the PIC32? 2020/05/19 14:00:28 (permalink)
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@Northguy, I'm not sure, I just know that ddr + dma won't reliably feed the ethernet TX.

Erik Friesen
#46
MisterHemi
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Re: Is MCHP still developing the PIC32? 2020/05/19 14:02:32 (permalink)
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karpouzi
I think it's a pity that Microchip gave up on PIC32. There is a huge class of PIC developers who would like 32-bit options without migrating to a completely different manufacturer, toolchain, IDE, programmer, peripherals, documentation etc. That is why Microchip gave up on their pointless idea to rename an ATSAM line as PIC32C. PIC32MZ EF is a great line of chips. I don't care that the core is MIPS instead of ARM, it performs well.




I agree. I was hoping to see more high-end PICs perhaps even 64 bit PICs similar to NXP's LS-1012A and faster PIC32MZs. I haven't gotten deeply into programming ARM processors yet but the PICs with MIPS cores seem more straight forward, is that correct?
 
I have considered migrating to some of their ARM devices as i'm running into complications or limitations now. One such problem is the non existent documentation about the PIC32MZ USB DMA as I can't seem to get it to work correctly and there's no information other than a list of registers.

My configuration:
MacBook Pro (Retina, 15-inch, Mid 2015) with MacOS Mojave (10.14.6) and MPLAB X IDE v5.30
 
Curiosity PIC32MZ EF 1 & 2, PIC24F Curiosity, XPRESS EVAL BOARD (PIC16F18855), SAMA5D3 Xplained and various custom boards.
#47
realexander
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Re: Is MCHP still developing the PIC32? 2020/05/19 14:16:02 (permalink)
5 (2)
Now wait a minute... some people here suggested that the PIC32C line was going to be ARM cores with traditional MCHP-like peripherals. Is that true? Is it still going to happen? Is there any hard-and-fast facts, as opposed to rumors?
 
I don't care if it's a MIPS core or an ARM core. But I'd like to stick with the pinouts and peripherals I'm used to. If I have to relearn everything, there's no reason for me to prefer SAM over STM32, Tiva, NXP, PSoC, etc.
 
#48
Sal Ammoniac
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Re: Is MCHP still developing the PIC32? 2020/05/28 14:00:57 (permalink)
5 (3)
StefiffThe ARM will go down in 2 years, and will used only be in non-serious applications. Somewhere in the second half of last year, the Chinese purchased RISK-V technology and offered it for licensing, free of charge to anyone. The technology of the ARM cores has stuck to its limit, there is nowhere else to improve. This is understood by all the bigs. Since the end of last year, virtually all major players have officially stated that they are stopping any investment in the development / using of ARM cores. All officially will puts all resources into developing RISK-V, and their future processors will be with RISK-V cores. Practically, wherever the ARM has stopped, RISK-V begins to develop from there.

 
Wow! I've not seen a more concentrated mass of misinformation in many a year.
 
Where to begin? First, it's RISC-V, not "RISK-V". Second, the Chinese didn't purchase RISC-V, because it's not for sale. It's an open ISA that's maintained by a foundation. Anyone can use the ISA to create their own RISC-V chips. Yes, some companies sell RISC-V chips and IP, but they don't own the core ISA.
 
It's complete nonsense that the "major players" are stopping investment in ARM cores. Complete nonsense. Please post links to backup your claims--I predict you won't because you can't--they don't exist. It's also complete nonsense that ARM cores have reached their limit and there's no room for improvement.
 
RISC-V is an interesting architecture and I wish it well, but it's not going to put ARM out of business in two years as you claim. Competition is good, and if RISC-V spurs ARM to develop faster, better, and cheaper MCUs, well, that's a win-win for everyone.
#49
Stefiff
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Re: Is MCHP still developing the PIC32? 2020/05/28 23:34:09 (permalink)
3 (2)
Unfortunately, the forum does not allow the publication of excerpts from information in other languages. After three attempts I give up. I do not intend to translate and retell them.
#50
Sal Ammoniac
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Re: Is MCHP still developing the PIC32? 2020/05/28 23:56:51 (permalink)
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Stefiff
Unfortunately, the forum does not allow the publication of excerpts from information in other languages. After three attempts I give up. I do not intend to translate and retell them.


No need to translate.. Just post links and I’ll use Google to translate.
#51
Stefiff
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Re: Is MCHP still developing the PIC32? 2020/05/29 00:15:26 (permalink)
3 (2)
RISK-V/RISC-V is a syntactic error, obviously.
Regarding the Chinese, I answered in a previous post. I'm not going back.
About the Links. Here are a few that came easiest.
https://www.sifive.com/blog/incredibly-scalable-high-performance-risc-v-core-ip
https://3dnews.ru/988852
https://servernews.ru/998775
https://www.ixbt.com/news/2019/12/15/samsung-risc-v-5g-2020.html
https://3dnews.ru/999669
https://3dnews.ru/998958
https://servernews.ru/999748
Honestly, looking for links from half a year ago or more is not my main goal in life. This came out of Bing / Google first. Even they find it difficult. Apple skips it by default.
 
About languages. I don't know Chinese and Korean, although I have to read PDF on them. The original information is often in these languages.
 
I removed the other quotes.
 
 
------------------------
Well, this thing pleases me the most. Unfortunately, there was an article somewhere where the two were collected and there were more things written In English.
https://servernews.ru/994970
See table. Recognizes 78.5k images. That's exactly what they use it for. The other article said that they could easily connect the cameras from one street to him, and he could do the processing.
 
Partly in English.
https://www.alibabacloud.com/blog/announcing-hanguang-800-alibabas-first-ai-inference-chip_595482
 
#52
Keaton
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Re: Is MCHP still developing the PIC32? 2020/05/29 14:00:53 (permalink)
4.67 (3)
The PIC32 brand is not dead, it is under current active development with new parts coming very soon
#53
DominusT
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Re: Is MCHP still developing the PIC32? 2020/05/29 14:14:13 (permalink)
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If the PIC32 is dead, there would be no point in MCHP recently releasing Curiosity PIC32MZ EF 2.0 Development Board
.
#54
Keaton
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Re: Is MCHP still developing the PIC32? 2020/05/29 14:31:02 (permalink)
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DominusT
If the PIC32 is dead, there would be no point in MCHP recently releasing Curiosity PIC32MZ EF 2.0 Development Board
.


There was a few reasons for that release.
Fixed silicon, newer faster debugger, cost reduction ($48 vs $121- starter kit) the joining of common interfaces between microchip boards and atmel boards, introduction of a modular GFX interface to support controller and controller-less modules LCDs.
 
 
post edited by Keaton - 2020/05/29 14:34:18
#55
NorthGuy
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Re: Is MCHP still developing the PIC32? 2020/05/29 17:06:52 (permalink)
5 (3)
Keaton
The PIC32 brand is not dead, it is under current active development with new parts coming very soon



Would you share any information on the new parts?
#56
Sal Ammoniac
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Re: Is MCHP still developing the PIC32? 2020/06/03 11:00:03 (permalink)
5 (1)
Stefiff
RISK-V/RISC-V is a syntactic error, obviously.
Regarding the Chinese, I answered in a previous post. I'm not going back.
About the Links. Here are a few that came easiest.


None of those links support your assertion that ARM will be dead as a company in two years or that the ARM architecture has reached the point where no improvements are possible.
 
Are lots of companies considering using RISC-V? Yes, but that doesn't mean the death of ARM. ARM is a mature ecosystem that's supported by all major tools vendors. It's not going away anytime soon. RISC-V, on the other hand, is not nearly as mature and tools support is lacking compared to ARM.
 
This ARM vs. RISC-V thing is a lot like Windows vs. Linux: people have been predicting the rise of Linux on the desktop and the death of Windows for decades, but Windows stays firmly entrenched on the desktop.
 
Getting back to the original topic of this thread, it does appear that Microchip has deemphasized PIC32 development, but they show no signs of abandoning it completely. Microchip has a good reputation in this regard--they tend to sell and support their product lines far longer than most vendors do. The MIPS architecture may not be the current darling of the industry, but it's certainly just as competent and capable an architecture as ARM or RISC-V (and now it's open as well). I only wish they'd do a better job of fixing errata. Having to work around serious peripheral errata all the time is annoying...
post edited by Sal Ammoniac - 2020/06/03 11:04:09
#57
JPortici
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Re: Is MCHP still developing the PIC32? 2020/06/03 20:48:30 (permalink)
5 (1)
Keaton
The PIC32 brand is not dead, it is under current active development with new parts coming very soon


Would also be interested to know :)
Only parts i know of -besides the release date, obviously- are the updates to PIC32MK (which alongside the new flash and can controllers promise to solve all present major issues from I2C not working to just a single SRS hence interrupts that are stupid slow)
 
I'm also in the faction of don't care about MIPS core, i just want MCHP peripherals in a 32bit part that is not laughably slower than a dsPIC
#58
friesen
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Re: Is MCHP still developing the PIC32? 2020/06/04 04:57:38 (permalink)
4.67 (3)
I just wish that 0.1% of the cost to take 1 chip to fab could be redirected to the complete ide to debugger ecosystem.  I have even considered building something from that ground up using mips toolchain + netbeans or some other ide that could handle makefiles.

Erik Friesen
#59
NorthGuy
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Re: Is MCHP still developing the PIC32? 2020/06/04 07:17:54 (permalink)
4 (1)
Sal Ammoniac
This ARM vs. RISC-V thing is a lot like Windows vs. Linux: people have been predicting the rise of Linux on the desktop and the death of Windows for decades, but Windows stays firmly entrenched on the desktop.



Lots of technical people use Linux, and their number is growing. But this is nothing compare to billions of housewives voting for Windows with their wallets.
 
Technically, the difference between MIPS, ARM, and RISC-V is very small. RISC-V is somewhat better because it was designed recently, while MIPS, and especially ARM have lots of legacy stuff. From the marketing viewpoint though RISC-V might be huge - ARM has been popular for far too long and is now losing its marketing luster.
#60
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