Filed under MCU

A modular 7 segments display

The serial 7 segments display I have a bunch of vintage red seven segment led display. This kind of display is quite pin consuming. Even with multiplexing, the number of control is huge if the goal is to interface it with low range microcontrollers. The solution is not new: use a shift register. The principle … Continue reading

STM32F10x Discovery, part 2: configure project

It’s now time to launch Keil µVision software. Start to create a new project with menu Project/New µVision Project. Create a directory usart_3 under stm32, the working directory. Stm32/usart_3 will contain the project files. Select Device for Target, the STM32F100RB soldered on the Discovery board: At the dialog box “Copy ‘startup_md_vl.s’ to Project Folder and … Continue reading