Search found 13 matches

by Just4Fun
Fri Sep 11, 2020 7:46 am
Forum: General discussion
Topic: Portenta H7
Replies: 7
Views: 493

Re: Portenta H7

I've "some" STM32H750VBT6 laying "around" (3.42$ each on Aliexpress + shipping) waiting to be used. Not exactly the same (no dual core) but enough "power" inside if you want play with these H7. Probably I'll make a board may be adding something else when I've the time... just curious to play with it...
by Just4Fun
Thu Apr 30, 2020 8:10 am
Forum: STM boards (Discovery, Eval, Nucleo, ...)
Topic: Nucleo F072
Topic: Nucleo F072
Replies: 5
Views: 1316

Re: Nucleo F072

Another thing is the pins mapping for serial I/O. May be that the F072 Disco and F072 Nucleo use different pin mapping for the USART. For sure this happens for the F030R8 Disco and the equivalent Nucleo board. I realized that testing a custom board compatible with the F030R8 Discovery ( ARMando ), a...
by Just4Fun
Thu Apr 30, 2020 7:38 am
Forum: Let us know a bit about you and your projects
Topic: A long time lurker
Replies: 3
Views: 816

Re: A long time lurker

ozcar wrote:
Wed Apr 29, 2020 9:18 pm
...so far HAL has been more like Hardware Distraction Layer for me.
:lol:

I must agree with you... this is a great definition of HAL...

About "doing anything useful", those kind of things are mine preferred...

Some examples: V20-MBC, Z80-MBC2, RC-Z8BASIC
by Just4Fun
Tue Mar 03, 2020 8:12 am
Forum: General discussion
Topic: [SOLVED] STM32F030F4 Internal RC
Replies: 8
Views: 1687

Re: STM32F030F4 Internal RC

...I took this to mean that it wouldn't change from internal to external oscillator until the external one was up and running satisfactorily. I can confirm this behavior. I've done some testing on a STM32F030R8 about it. Here I've attached a sketch (ST official core) I've used to check which oscill...
by Just4Fun
Thu Feb 27, 2020 1:23 pm
Forum: General discussion
Topic: [SOLVED] STM32F030F4 Internal RC
Replies: 8
Views: 1687

Re: STM32F030F4 Internal RC

If I remember well, driving BOOT0 to 3.3V will start the internal serial bootloader for ever. In this way, after every reset you will start the internal bootloader, not your "user" program... So may be better: 1) disconnect NRST from the serial-usb DTR 2) reset the stm32 (BOOT0 = 3.3V -> Serial boot...
by Just4Fun
Thu Feb 20, 2020 11:09 am
Forum: Projects
Topic: The "odd couple": STM32F030R8 + CPU V20
Replies: 3
Views: 868

Re: The "odd couple": STM32F030R8 + CPU V20

ag123 wrote:
Thu Feb 20, 2020 10:35 am
maybe you can run dos on it, memory is pretty tight though :lol:
Yes may be... :D
The final board will have 1MByte RAM (all the address space fitted...) :mrgreen:
by Just4Fun
Thu Feb 20, 2020 10:09 am
Forum: Projects
Topic: The "odd couple": STM32F030R8 + CPU V20
Replies: 3
Views: 868

The "odd couple": STM32F030R8 + CPU V20

Hi all, I'm currently playing with a new "retro project" (an other useless stuff... :lol: ) using a V20 CPU (uPD70108HCZ). It is a special version of the Intel 8088 CPU (that one used on the IBM PC) that can also run 8080 code. I'm using a STM32F030R8 MCU (on the white custom board ARMando ) as "com...
by Just4Fun
Sat Feb 01, 2020 12:37 pm
Forum: General discussion
Topic: What about a STM8 core...?
Replies: 2
Views: 731

Re: What about a STM8 core...?

Wow great! :D

Thanks a lot Frederic!
by Just4Fun
Sat Feb 01, 2020 11:45 am
Forum: General discussion
Topic: What about a STM8 core...?
Replies: 2
Views: 731

What about a STM8 core...?

I know that is probably a silly question, but is there any plan to do a STM8 "official" core? I was intrigued by this video by ST: https://www.youtube.com/watch?v=U-GY2TKGaP8 Googling around I've read the STM8S207RBT6C specs, and may be I'll try it out in a custom dev. board. It can be found around ...
by Just4Fun
Mon Jan 13, 2020 8:33 am
Forum: General discussion
Topic: UART Programming Auto BOOT0/RST
Replies: 1
Views: 809

Re: UART Programming Auto BOOT0/RST

Hi, I've already done a similar thing for a custom board using a STM32F030R8 to automate the download from Arduino IDE + ST core , using the serial bootloader (through the STM32CubeProgrammer "interface") without modify the official ST core (only a little edit to boards.txt is needed only for Linux)...

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