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Forum Index : Microcontroller and PC projects : Miximite 2 firmware compatibility with other stm32 M7?
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ice2642 Regular Member  Joined: 27/05/2023 Location: BrazilPosts: 82 |
Hello, I would like to know about the compatibility of the STM32H750VBT6, STM32H723VGT6 withe the STM32H742IIT6 For use the 50VBT6 or 23VGT6 instead the 42IIT6 to build a board what changes I can expect? I am asking because I found this 2 demo boards much more cheap than the used in original project. Thank you in advance. Best regards, MMBasic 5.0707 on PicoMite VGA |
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Mixtel90 Guru  Joined: 05/10/2019 Location: United KingdomPosts: 6798 |
IIRC STM do a Chip Selection pdf file, with abbreviated specs for the range (and there's a lot of them). I'd advise you to hunt that down first. Even then, you need to know if the demo board has enough external flash to be usable. I'd not like to guess on this as there are too many variables. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9125 |
Won't work at all on the 750 as very little flash memory hence cheap won't work on the other 2 as different (less) RAM |
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| ice2642 Regular Member Joined: 27/05/2023 Location: BrazilPosts: 82 |
Thank you! Best regards, MMBasic 5.0707 on PicoMite VGA |
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| ice2642 Regular Member Joined: 27/05/2023 Location: BrazilPosts: 82 |
Thank you! Best regards, Edited 2023-08-31 00:08 by ice2642 MMBasic 5.0707 on PicoMite VGA |
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| ice2642 Regular Member Joined: 27/05/2023 Location: BrazilPosts: 82 |
This board The option STM32H743VIT6 It is VIT6, not VIIT6, have much diferences? this board will work? Thank you in advance. MMBasic 5.0707 on PicoMite VGA |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6798 |
Link does nothing, sorry. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3150 |
Searching on aliexpress for the item number in the malformed link shows this  This is an H7 board. PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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| JohnS Guru Joined: 18/11/2011 Location: United KingdomPosts: 3802 |
There's no VIIT6. There's IIT6 which I believe you need. You can read ST's site about the chips :) VIT6 100 pins, IIT6 176 pins. Maybe it would work? Check the same overall flash & RAM are present and all I/Os needed. Seems unlikely with 76 pins fewer and cheaper! John Edited 2023-09-02 22:12 by JohnS |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 9125 |
The H743 board should run the ArmmiteH7 firmware but no guarantees on things like SDcard, depends on which pins they are using compared to the NucleoH743 which is the target board for the ArmmiteH7. It won't/can't run the CMM2 firmware. As stated above the H750 board is completely useless Edited 2023-09-02 22:21 by matherp |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6798 |
I'm not sure I've seen such a breadboard-hostile module since the original CMM2 one. :) Without a circuit diagram, and considering that there may be VAT on those prices, I'll not even consider it. Edited 2023-09-02 22:26 by Mixtel90 Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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disco4now Guru Joined: 18/12/2014 Location: AustraliaPosts: 897 |
This seems to be the link. STM32H743VIT6 I have recently purchased another one of these. They all say they are the 400MHz chip but both I have received are the newer 480MHz chip. All the Ali vendors seem to be using the same add that obviously never gets updated. And the sort of good news. In Jan 2022 Peter gave me a copy of the source for the ARMmiteH7 so I could try to include support for that particular board. I now have a single binary for the ArmmiteH7 that supports both the original 144 pin Nucleo board and this particular 100 pin STM32H743VIT6 board. Once I have some confidence that the new release of the ArmmiteF407 is OK I will release and updated ArmmiteH743 binary that will support this board. A extract from the pending manual. The MMBasic firmware will also run on the STM32H743VIT6 100 pin version of the H7 chip. These 100 pin boards have been tested: STM32H743VIT6 from WeAct Studio (no longer available) STM32H743VIT6 from DevEBox. A single MMBasic firmware now supports both the 144 pin Nucleo board and the 100 pin WeAct Studio and DevEBox boards. The firmware can read the package information from the chip and determine the number of pins. It also reads the RevId on the chip and determines the CPU Speed to be 400MHz or 480MHz. Within MMBasic MM.INFO(NRPINS) will return 100 or 144 to report the number of pins. MM.INFO$(CPUREVID) will return “1003” for the chips with 400MHz CPU and “2003” for the chips with a 480MHz CPU. Constraints with 100 pin STM32H743 boards Due to the reduced number of pins available the following restrictions apply to the 100pin boards. The CAMERA command and MOVEMENT() function are not supported. The high speed count pin is not available. SPI3 is not supported. The following restrictions are due to functions sharing pins, so they are mutually exclusive. PWM 2D and COM2 RX share pin 25 so only one is available at any time. SPI2 shares pins 42,43 and 44 with the SSD1963_x_16 parallel LCDPANELs so is not available if one is configured. The SSD1963_5 to SSD1963_8 only use 8 bits, so SPI2 is available when they are configured. Any buffered driver will use 16 bit s and these make SPI2 unavailable when configured. Gerry P.S. It wont run with the current ArmmiteH7 software as these boards have a 25MHz clock and current software expects 8MHz. The pending release can handle the 25MHz clock for the 100 pin board. Edited 2023-09-02 22:44 by disco4now Latest F4 Latest H7 |
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| JohnS Guru Joined: 18/11/2011 Location: United KingdomPosts: 3802 |
Way to go, Gerry, should suit some people! John |
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| disco4now Guru Joined: 18/12/2014 Location: AustraliaPosts: 897 |
The STM32H743VIT6 backpack.  Latest F4 Latest H7 |
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| Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 6798 |
It might be an idea to point out that this is for the 743 (i.e. more expensive) option, NOT the 750 version which the AE link seems to want to go to. The 750 is no good for this. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| morgs67 Regular Member Joined: 10/07/2019 Location: AustraliaPosts: 75 |
@ice2642 link: https://pt.aliexpress.com/item/1005005415869986.html?spm=a2g0o.cart.0.0.4e407f06H6JFWQ&mp=1&gatewayAdapt=glo2bra You can select one or the other. Tony M |
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| ice2642 Regular Member Joined: 27/05/2023 Location: BrazilPosts: 82 |
Thank you all! It was the link :) I do not know wat happens when I post the link. I will buy the option STM32H743VIT6 Best regards, Edited 2023-09-05 11:25 by ice2642 MMBasic 5.0707 on PicoMite VGA |
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