Arduino for STM32

for F103 chip default spi pins are MOSI=PA7, MISO=PA6, SCK=PA5, SS=PA4

according to https://github.com/rogerclarkmelbourne/Arduino_STM32/blob/master/STM32F1/libraries/Adafruit_ILI9341_STM/Adafruit_ILI9341_STM.h this library have only one constructor Adafruit_ILI9341_STM(int8_t _CS, int8_t _DC, int8_t _RST = -1); so your compile error is ok it assume to use predefined h...

Usb device mode doesn't require any "usb_connect" pins, only dm/dp (pa11/12) and gnd, so u can use pd2 without any problems

if you are still calling construcor for software spi, it's ok that it's slow
if not, use SPI.setClockDivider(2..256) to set faster bus clock (by default it close to 4MHz, but depends on your hardware), or, better, use SPISettings to configure your slaves with proper params for each

hello @.rpv blink ok, Serial ok but SPI not working. i am trying to run graphics test code from adafruit its compiling but not able to get anything on display. I kept like this. #define TFT_MISO PB14 #define TFT_MOSI PB15 #define TFT_CLK PB13 #define TFT_CS PB12 #define TFT_DC PD9 #define TFT_RST P...

it's much better to buy f3xx/f4xx instead
f103 line have to rip finally

yes, boot0 have to be pulled down for normal operation

#define LIBMAPPLE_CORE //comment it for HAL based core #define IWDG_PR_DIV_4 0x0 #define IWDG_PR_DIV_8 0x1 #define IWDG_PR_DIV_16 0x2 #define IWDG_PR_DIV_32 0x3 #define IWDG_PR_DIV_64 0x4 #define IWDG_PR_DIV_128 0x5 #define IWDG_PR_DIV_256 0x6 typedef enum iwdg_prescaler { IWDG_PRE_4 = IWDG_PR_DIV_...

im not sure it's possible with any core, but using HAL/CMSIS or in general as a concept it can be implemented using two timers one timer in input capture mode capturing raising (or falling) edge, and second timer triggered by first timer overflow target frequency will be timer2 count * timer 1 overf...