Internal RTC in STM32
RTC can be used for chronometers, alarm clocks, watches, small electronic agendas, and many other devices and today we are going to learn HOW to access internal RTC in STM32.
How to use SPI with STM32
SPI is not very different from I2C. To enable a slave device, we need to pull the CS pin low and after our read or write is complete, just pull the pin high again. This will disable the slave device.
Receive UART data using POLL INTERRUPT and DMA
Starting with the simplest one i.e using the POLL method. The data is Received in blocking mode i.e the CPU will block every other operation until the data transfer is complete. This method is good to use if you are only using UART and nothing else otherwise all other operations will be affected.
UART Tx data using Poll Interrupt and DMA in STM32
The data is transmitted in blocking mode i.e the CPU will block every other operation until the data transfer is complete.