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Posted on August 05, 2016 at 00:16We have had an odd problem with using pin PC13 as an output GPIO (for active-low chip-select of a bit-banged SPI). (PC13 is not defined as a GPIO_EXTI13.) We found that controlling this GPIO somehow leads to USB (...
Posted on August 05, 2016 at 10:53hi,I just found that clock devider not work for some Frequency, for example if PLL is used without divider, Timer clock cant be devided. EnjoyAll the best, #stm32 #timer #interrupt
Posted on August 03, 2016 at 08:43Hello, can someone to explain to me what happen when you use 8 channels on ADC, and use DMA. How DMA take ready sample from data register. I think when first channel is ready, dma take it first, after that second, t...
Posted on August 05, 2016 at 09:21I noticed a mistake in the structure of the PM0056 document (rev. 5) : The Branch an Control instructions subsubsection (3.8.4, p 91) should be a different subsection. The B, CBZ, etc. are parts of it. #stm32-doc...
Posted on August 04, 2016 at 14:19Hi,I am trying to run my system at 4 MHz SYSCLK having PLLCLK as source.PLL has MSI as Source configured at 4 MHz.This configuration is done in SystemClock_Config() in main().Now, I am trying to re-configure the clo...
Posted on July 31, 2016 at 16:04 I've been struggling with this problem for weeks now. Basically I am trying to read out a sensor via I2C. The L3SD I am reading out the sensor in FreeRTOS, but the sensor readout task has the highest priority of a...
Posted on August 05, 2016 at 05:04Dear all,I am using stm32L151VD.I got an application which needs to change the RTC wakeup counter reload value in run time. My original wake up period is 1/16s. And then I use the code below to change the wake up pe...
Posted on August 04, 2016 at 12:49STM32F207VE Custom Board. I want to generate a PWM of 50-50 duty cycle with varying voltages (zero-to-maximum) like a DAC which gives output based on count. I do not have the schematic now. I'm directly viewing the ...
Posted on August 02, 2016 at 02:31Hello, I am using the Segger J-Link+ to connect to my target board with the STM32F103RD chip installed. I connected all the necessary pins of the target board (TMS, TDO, TDI, NTRST, TCK, and RESET) to the correspond...
Posted on August 04, 2016 at 17:07Timer3 runs 2x faster than expectedI know what many readers are thinking but read onI set my STM32F746 (DISCOVERY PCB) for SysClk=216 MHzAHB Prescaler set to �1 thus HCLK = 216 MHzAPB1 prescaler set to �4 thus PCLK1...
