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Posted on September 15, 2015 at 11:37 Hello, i am trying to measure a rc pwm signal (from a single channel of a rc receiver) This signal has a total period of 20ms (50 hz) The active pulse is between 900us and 2000us width St...
Posted on September 14, 2015 at 18:12I have an EXTI programmed on PortB line8 that works as expected when a rising edge is found on GPIO_IN8.Unfortunaltely sometimes, when I reset the GPIO_Pin15 of port B by doing GPIOB->BRR = GPIO_Pin_15 then t...
Posted on September 02, 2015 at 20:23 Hi, I create a new project using cubemx 4.10 with hal 1.8 for USB device. I'm looking for receive function and i found CDC_Receive_FS, but there is almost no code in ther: /** * @brief CDC_Receive_FS ...
Posted on September 04, 2015 at 19:08Dear all, I want to use TIM1 CH3N to drive a buzzer with different frequencies. I have tried to program TIM1 on channel 3N as below (the corresponding pin is already configured as AF_PP at 50 MHz): void buzz(uin...
Posted on September 14, 2015 at 12:18 Hi , still with my STM32F429I disco-board project , I would know what is the return of this functions: /** \brief Get Priority Grouping The function reads the priority grouping field from the N...
Posted on September 13, 2015 at 16:48Hi guys,I have a problem to test systick using GNU assembler on my STM32VLDiscoveryMy assembly code is:.thumb.syntax unified.cpu cortex-m3 @ STM32VLDiscovery Board .equ STACKINIT , 0x20005000 .equ GPIOC_BASE ...
Posted on September 14, 2015 at 20:00 Hi, I'm using a servo with a pwm connection and this is a part of code: RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE); GPIO_PinAFConfig(GPIOB, GPIO_PinSource4, GPIO_AF_1); GPIO_InitTypeDef GPI...
Posted on September 14, 2015 at 16:40Hello Everybody.I am observing some strange behavior on the scope for a PWM output. I am driving it at 800kHz with alternating high time of 400ns and 800ns.In the TIM1_UP_TIM10_IRQHandler I am alternating the hig...
Posted on September 07, 2015 at 11:10 Dear all I use a master uP (STM32F072R8) and a slave uP (STM32F030K6) The slave processor is in AC main voltage and the main processor is galavanic isolated from main voltage. The main processor can rese...
Posted on September 12, 2015 at 15:51I'm using STM32F051R8 board but i'm unable to configure UART in 7bit bata and one bit parity mode. Tried changing M and PCE bits of UART CR1 register but no luck.
