Arduino for STM32

thank you for your suggestions, steve and ag123.
i think that arduino IDE is formerly purposed for beginners to "learn to program microcontroller in easy way" (CMIIW), so i doubt about its capability to compile complex code for such powerful and sophisticated controller like ARMs
i know there are ...

just do that in loop(), there isn't anything else running, arduino is bare metal codes unlike desktop pcs.
interrupts etc isn't necessary


ok, got it.
i used to create code for AVR family using CVAVR, i am quite new with arduino IDE. I like using CVAVR because i think i can control almost all ...

i tested it, and it worked fine. thank you.
i tried Serial1, Serial2, Serial3 and they worked fine too.
i assume that each hardware serial port has 256 bytes receive buffer too, same as USB serial?

Hello there...
i succeeded to install roger's bootloader for bluepill, and succeeded to upload compiled sketch code via bluepill's USB (maple serial).
Now i need to receive and send byte data over USB (maple serial)
the receive must be interrupt type, so i dont need to poll for new data.
Can anyone ...

There are two different bootloaders.
If you set BOOT0 to 1, then the integrated ROM bootloader will be activated, address 0x1fff0000 I think
If you leave BOOT0 on 0, then the FLASH bootloader will be active at 0x08000000, but this bootloader only stays in this state if BOOT1 is set or there is no ...

If you use the bootloader, then the appropriate upload method (step 14) to select in Arduino IDE is "Stm32duino bootloader", and not serial.

i changed the upload method to stm32duino bootloader, the result was the same.
i think the problem is that windows cannot detect the device (unknown device ...

Hello there..i am quite new with bluepill STM32F103 board.
Here what i've done
1. i bought 4 bluepill board (china), and changed the 10K resistor to 1K5 resistor
2. i bought 2 STLINK downloader
3. i have 2 USB cable
4. download Roger Clark's Arduino_STM32-master, copied and unzipped it to Documents ...