Tagged: stm32f0

HAL Library 17- IWDG for STM32Fxxx 3

HAL Library 17- IWDG for STM32Fxxx

Sometimes you need watchdog timer to look at your system if it gets stuck. I made a little library to work with it and to be compatible with HAL based drivers. IWDG timer in STM32Fxxx device has its own clock which is independent from main system clock. You have to constantly reset it’s counter value or it will elapse and reset MCU. Library Read more about new HAL libraries Features Detects if system was reset by watchdog Supports different timeouts Resets watchdog

HAL Library 16- I2C for STM32Fxxx devices 11

HAL Library 16- I2C for STM32Fxxx devices

Here it is. After some email for I2C library for HAL, I’ve made it. I ported my old for F4 to HAL based libraries for F0/F4/F7 series. I added method to read single byte, multi bytes, write single byte, write multi bytes, write/read single byte from/to register which has 16-bit address size. Library Read more about new HAL libraries Features Supports up to 4 I2C peripherals Supports different pinouts selectable on initialization Supports custom pin combinations Supports multiple read/write modes...

HD44780 LCD Example 30

HAL library 15- HD44780 for STM32Fxxx

HD44780 LCDs are still very popular devices in embedded project so I think you can’t without simple library for them. I’ve port my old library to HAL based libraries for these LCDs. Library Read more about new HAL libraries Features 4-bits operation mode Minimum GPIOs used (6) Supports different LCD sizes Supports up to 8 custom characters Enable/disable cursor blinking Show/hide cursor Shift content in ram left/right Connection pins to board are user selectable Automatically jumps to new line when...

HAL Library 13- Buttons for STM32Fxxx 1

HAL Library 13- Buttons for STM32Fxxx

New port. Buttons library for HAL based libraries. It can handle buttons, connected to your STM32Fxxx devices. It supports basically unlimited number of buttons with different triggering. Currently, callback functions can be called on these events: Button on pressed: Called directly when button is pressed Button normal press: Called when button is released after specific amount of time Button long press: Called when button is pressed for specific “long” amount of time It uses malloc() to allocate memory, so you...

HAL library 10- CRC for STM32Fxxx 1

HAL library 10- CRC for STM32Fxxx

STM32Fxxx devices have CRC (Cyclic Redundancy Check) module inside. This is small and useful unit when working with communications. It might become very useful to verify if your packet of data is correct. STM32Fxxx devices uses “Ethernet” CRC with polynomial below: X32 + X26 + X23 + X22 + X16 + X12 + X11 + X10 +X8 + X7 + X5 + X4 + X2 + X +1 It is quite ugly 😀 Well, using this module is very easy....

HAL library 06- DS18B20 for STM32Fxxx 19

HAL library 06- DS18B20 for STM32Fxxx

When you have onewire library done, it’s easy to make interface for DS18B20 sensors. Library Read more about new HAL libraries Features Search sensors Read temperature Set resolution for each device from 9 to 12 bits Start temperature conversion on all devices simultaneously Set alarm low and high temperatures Disable alarm temperatures Search devices with alarm flag set