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Posted on May 23, 2015 at 17:59Hi!I am working now on the project (STM32F429i board) where I need to profile the velocity of servo motor (i.e. trapezoidal velocity)... So I need to control the number of pulses I've sent via PWM channel, to control p...
Posted on May 25, 2015 at 06:17HelloSuppose configuring system clock to 168MHz.According to page 226 of RM0090_Rev9, it is recommended to set PLLM in a way to achieve 2MHz for VCO input frequency(e.g. 8MHz HSE with PLLM=4) in order to limit jitter a...
Posted on May 25, 2015 at 15:27 My STM32VL discovery board shows as having an up-to-date firmware of V1J13S0 according to the ST-LINK utility, but the USB implementation is still broken, causing a long delay and numerous kernel errors and warnin...
Posted on May 25, 2015 at 12:53Hi!I have one question: why when I update the timer PSC, ARR and CCR1 registers to change the frequency of PWM signal, the first pulse is generated with the earlier frequency and only second and next have desired frequ...
Posted on May 24, 2015 at 13:36Hi to all i want to trigger DMA on MEM2MEM State and use it by fsmc to run an External 12 bit DAC(AD5445) in 50ns Step. is there any way to do that without using interrupt? #dma #memory #fsmc #timer-trigger #mem2mem...
Posted on May 25, 2015 at 14:26We have a solution, which reading audio file from SDCard and playing by I2S. It works ok when the CPU Clock Speed is >= 84Mhz. To reducing the Power Consumption, we have to reducing the CPU Clock Speed to 24MHz, then t...
Posted on March 18, 2014 at 03:12Hello, I am planning on using the SDADC in STM32F37x microcontroller. The data sheets says the sampling frequency is between 500 kHz ~ 6 MHz, depending on the clock signal driving the SDADC. The output data rate is...
Posted on May 25, 2015 at 09:15The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on May 22, 2015 at 12:25Hello,I estimate the total power consumption of a device operating from the HSE oscillator. The MCU part number is STM32L152RBT6.I configured the MCU to operate from the MSI oscillator (2.1 MHz). All the GPIO are confi...
Posted on May 22, 2015 at 11:17I am using a STM32L152RC microcontroller and have to detect the length of pulses of about 0.7 V and 3 ?s using the COMP2 comparator. At 2.7 V VCC the worst case propagation delay is 2 ?s in fast mode. A minimum delay i...
