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ETM Trace problems with newer STM32F7 derivates

Posted on August 18, 2017 at 11:38Hello,is it possible that the ETM Trace does not work correctly in newer STM32F7 derivates?In a first revision of our controller board, we used STM32F746ZGT. Here it was possible to use the ETM trace with a CPU spee...

Resolved! PWM Input Capture vs. EXTI+TIMx->CNT differing values

Posted on August 18, 2017 at 02:58 I'm having a really fun time learning this stuff! I have my WWVB decoder working with EXTI and TIM2 free running . As a learning exercise, I was trying to use the PWM Input Capture method. TIM2 prescaler i...

disable read/write protection on STM32L451xx

Posted on August 18, 2017 at 04:30Hi,I've got problem with migrating from stm32l476xx to stm32l451, when using l476, writing to internal flash was never been a problem. But in L451, I've failed everytime I write to the internal flash.I've notice dif...

USART stuck condition, waiting on TC? CTS? STM32F411

Posted on August 18, 2017 at 01:13So, I have a system here that I recently observed a non-reproducible lockup in, so I rushed over and attached a debugger to the running target to see where the problem was.I saw that the UART driver code (at an SDK ...

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Resolved! RCC_CFGR_MCOXPRE doesn't corrosponde to the manual

Posted on August 17, 2017 at 21:15Hi,has anyone checked in the stm32f4xx.h Lib the RCC_CFGR_MCOxPRE Register?The values mentioned in the RM0090 manual don't fit the stm32f4xx.hstm32f4xx.h:&sharpdefine  RCC_CFGR_MCO1PRE                    ((uint32_t)...

Resolved! bypass config with STDPERIPH_DRIVER

Posted on August 17, 2017 at 13:05hello i use stm32f030f4 and use 10MHz oscillator (BYPASS) and i want achieve to 48mhz in mcu.and i use STDPERIPH_DRIVER and keil v5.what configuration i have to do ?what code i have to add to my project?