Posted on June 30, 2014 at 22:08Hi.I use a STM32F103ZE microcontroller.I try to change the System Clock (default is HSI) to HSE.On my board is a HSE - cristal oscilator which value is 8 Mhz and i want to change it to 72 Mhz and it works.But if i wan...

Posted on June 24, 2014 at 17:08Hi.I try to make a simple program using a STM32F013ZE microcontroller, but i receive the next error : ''.\Blink four LEDs.axf: Error: L6218E: Undefined symbol SystemInit (referred from startup_stm32f10x_hd.o).Not enou...

Posted on June 21, 2014 at 14:18Hi.I am a beginner in microcontroller programming and new on this forum also.I have a development board EM-STM3210E with STM32F103ZET microcontroller and i try to make a simple project (turn ON a led) using Keil uVisi...