F103 HSI instead of HSE
Posted on September 06, 2014 at 17:52 hello dear forum, I have changed F103 on the motherboard - however, HSE doesnot start up but I can download code into the F103 with USART I dont want to throw away the board my...
Forum Posts
duplicate topic for this ''The I2C doesn't work! (STM32f030 and STM32f103)''
Posted on September 06, 2014 at 19:07Unfortunately because the original thread doesn't go high on the forum then I had to create the topic for this topic:[DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2...
The I2C doesn't work! (STM32f030 and STM32f103)
Posted on September 02, 2014 at 18:54Hi ST partisans! (Wink) I have written two program for my two MCU. STM32F103RET6 and STM32f030. in the circuit, the STM32F030 should send ''Rohalamin'' string over I2C (as Master) . on the other hand, the STM32F1...
stm32f030: PF0/PF1 as GPIO
Posted on September 06, 2014 at 08:50 Dear forum members, I hope you can help solving a mystery. I stumbled upon these cute stm32f030f4 µCs and built minimalistic boards with it. No external oscillator used, thus pins PF0 and PF1 should b...
Custom PWM Triggering in Center Aligned Mode
Posted on September 06, 2014 at 07:57Hi, I am new to ST. I have a STM32F405 MCU. Can someone please advise on the best way to customise PWM Output. I need to create a wave that is 180 degrees out of phase both with the same Frequency, Duty Cycle adj...
STM32F4 SPI & Busy state
Posted on September 06, 2014 at 04:45Hello, I'm trying to handle the Chip Select pin via software, but I can't figure out how to determine when the SPI peripheral has finished the current transfer. By the looks of it, the SPI_SR_BSY flag, becomes 0 ...
STM32F411 VREF+ and VDDA Pinout Question
Posted on September 06, 2014 at 02:07Hello all,I am trying to confirm the pinout for Vref+ and VDDA on the STM32F411 products. The datasheet states if Vref+ is not available it is internally tied to VDDA. Only the UFBGA100L and LQFP100 packages expo...
STM32F0 spi clock problem
Posted on September 04, 2014 at 12:29 Hi! I'm trying to communicate with Atmel AT45DB081D dataflash over SPI. For testing I've send command to read Manufacturer and Device ID (0x9F on MOSI). After I've sent data, SPI clock stops to pulse...
SOLVED!!! One Pulse on TIM15 on STM32F072/STM32072B-EVAL
Posted on September 03, 2014 at 23:55 Hi, I'm trying to modify the standard One Pulse example to use TIM15 to generate a delay, programmable width pulse, triggered by an external input. For the external input, I am using TIM3 routed to th...
STM32F030 RTC wakeup from STOP mode
Posted on September 04, 2014 at 23:04I'm writing an app, that most of its time will spend in STOP or STANDBY mode (battery powered microsystem). I'd like the internal RTC to wakeup my STM32 every 5 minutes, enter the ISR, do its tasks in ISR (ADC me...
