Posted on October 16, 2012 at 17:14Hi all, I'd like to make 2 STM32F407 share 1 external RAM as a common memory. Chip #1 would store some data in RAM for chip #2, then stop all accesses and signal to #2 that there is some data for him. Chip #2 would...
Posted on October 19, 2012 at 18:51The STM32L1xx reference manual has this text in the DMA section: The 7 requests from the peripherals (TIMx[2,3,4,6,7], ADC1, SPI[1,2], I2Cx[1,2], USARTx[1,2,3]) and DAC Channelx[1,2] are simply logically ORed...
Posted on October 19, 2012 at 16:47Hello, I am having problems with the syStick timer. The handler for sysTick stops being called after one or two interrupts from TIM3 (set < 1Hz). The TIM3 interrupt has no problem (LED keeps toggling). I started ...
Posted on October 18, 2012 at 17:56Hi,I'm having a bit of trouble configuring the SPI2 clock frequency on an STM32F407VG, or perhaps I am confused as to how it works.Using a 25Mhz external oscillator, boosting up to system clock frequency of 168MHz....
Posted on October 19, 2012 at 10:18Hello All, I am using STM32Fs series and I am writing a code for SPI2 . I have to read and write from the slave device. I have to read the data when RX buffer is full and write data continuoulsy to another device....
Posted on October 18, 2012 at 11:01 Hi, Im using a STM32f405RG and i am trying to get a simple USART example to work. I load the following code to the mcu: #include ''stm32f4xx.h'' #include ''stm32f4xx_gpio.h'' #include ''st...
Posted on October 16, 2012 at 18:50hello forum, the processor is STM32F103 I have an H bridge for DC motor I want complementary outputs of CH1 and CH1N I setup the timer 1 as following TIM_TimeBaseStructure.TIM_Prescaler = 0; TIM_Tim...
Posted on October 18, 2012 at 11:15In STM32F10x Standart Peripherals Library v3.5.0, stm32f10x.h, line 3616:&sharpdefine DMA_CCR7_PSIZE , ((uint16_t)0x0300)Not needed comma? #stm32f10x-spl #error
Posted on October 17, 2012 at 11:48Hi everyone!I'm new to the world of microcontrollers, these days I'm doing my first espeienze with STM324 discovery, I'm reading the various manuals and trying out the various examples, but I can not understand how...
Posted on October 18, 2012 at 08:59Hi everybody. I used SysTick timer as a counter of time in my application throug using of interruption. I found ''SysTick_Config'' function in core_cm0.h file. This function load time to reload register and switch ...
