Arduino for STM32

All of those connectors and no SWD pins? I have a commercial STM32F103VET6 board that I program using either a ST-Link dongle or a USB/Serial adapter connected to USART1. I never could get any bootloader stable enough to be useful. The ST-Link is the way to go. The code uploads in seconds and no foo...

I saw this video when it appeared on my RSS feed last Sunday. It was a pretty good overview. Note that 8-bit uCs are not dead and are an excellent choice for some projects. True, I have a tube of ATTiny85s that are quite useful for small projects. It is surprising at the amount of code that will fit...

You can find this board pretty much everywhere That's true but at the moment for the USA, Amazon is about $3 less than eBay. Aliexpress search has been broken for a while (slide to verify then error, with multiple browsers, with and without private browsing, with and without VPN running). Free ship...

Assuming core 1.9.0 and a F103 board: HardwareSerial Serial1(PA10, PA9); HardwareSerial Serial2(PA3, PA2); HardwareSerial Serial3(PB11, PB10); void setup(){ Serial1.begin(9600); Serial2.begin(9600); Serial3.begin(9600); } In the options, select USART enabled, no generic serial. Names Serial1, 2, 3, ...

Try this:

Move MyTim->setPWM() to setup.

Inside loop, call
MyTim->setCaptureCompare(channel, dutycycle, PERCENT_COMPARE_FORMAT)

I would keep dutycycle in the range of 1 to 99, avoiding 0 and 100.

Jumper PB0 to PB1. #include <SoftwareSerial.h> #define mySerial SerialUSB SoftwareSerial swSerial(PB1, PB0); void setup() { mySerial.begin(9600); swSerial.begin(9600); } void loop() { for (int i = 0; i < 6; ++i) { swSerial.print("hello\n"[i]); if (swSerial.available()) { char ch = swSerial.read(); m...

I tested a GPS module connected to PB0/PB1 with SoftwareSerial on a 407 board. It is working fine, printing the NMEA messages from the module. #include <SoftwareSerial.h> #define mySerial SerialUSB SoftwareSerial gpsSerial(PB1,PB0); void setup() { mySerial.begin(9600); gpsSerial.begin(9600); } void ...

6. This is working fine and I am able to send text both ways. But the Serial.Write("Testing") still isn't being printed. Outputting anything to the USB or other serial ports during setup is usually a futile exercise. Roger's libmaple based core has been around for a few years and for a long time wa...

If using the STM32 official core, set both USART and USB to enabled with no generic Serial. Then define the serial port names so they won't move around on you. #define Serial SerialUSB // RX TX HardwareSerial Serial1(PA10, PA9); HardwareSerial Serial2(PA3, PA2); HardwareSerial Serial3(PB11, PB10); Y...

Since you are on Windows, see if you can get the Flasher-STM32 application working with a serial-usb connection.
See https://www.st.com/en/development-tools ... stm32.html for the program and https://youtu.be/wGbiT6IxGP0?t=257 for an example of using it.