Arduino for STM32

ag123 you are a very bad boy... :lol: You made me buy a W801 board and five W806 MCU too... :mrgreen: Here the link where I bought the CH32V203C8T6 (10x @ $13.3 from the WCH store). The W801/806 seems really a beast... like compare M3 and M7, but with a C-SKY architecture inside. Now the problem (a...

I couldn't resist... :lol: I've just ordered a lot of 10 MCU CH32V203C8T6 for $13.3 including taxes and shipment (at least to my country). They are made by WCH and it seem they are pin-compatible with the equivalent STM32 family (of course there is a RISC-V CPU inside, and not an ARM) See here on th...

Thanks guys! Hi! I have the feeling that this is about what I need. Your example "STM32F103 driving a cheap 2004/1602 LCD @5V: controlling contrast & backlight with 2 PWMs, 2 resistors and 1 cap" might help me, but the link to the forum from hackaday says it doesn't exist: https://www....

Hi, you have to start from the "reference" design and hold the relevant HW part for your project to be sure it can run your FW without changes. Some years ago I did a board compatible with both the Blue Pill and the Maple Mini using a single sided homebrew PCB just to start to play with ST...

Anyway I currently prefer to play with a 68008 CPU...

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.....

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...

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

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

...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...

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 -> S...