Posted on June 12, 2014 at 02:03 Why do I get an immediate update event when I configure TIM7 like this: TIM7->CR1 = 0; TIM7->PSC = 7199; TIM7->ARR = 2000; TIM7->DIER = 0; TIM7->CNT = 0; TIM7->CR1 = TIM_CR1_CEN; while ((TIM7->SR & TIM_SR_UIF...
Posted on May 25, 2014 at 19:09Folks, The STM32L051 looks like a good device for a new project, but there seems to be no-one stocking it and there seems to be no dev kit. Can I use the STM32F0 discovery and any code will be essentially drop-in when ...
Posted on June 12, 2014 at 15:56Hello, I'm trying to use stm32F3 as SPI slave, and communicate with master via another board. I've configure SPI1 as slave. Slave clock set to 18MHz. I'm using NSS hardware, and getting ETXI once CS gets low in NSS pi...
Posted on June 12, 2014 at 14:12Hi, I am using the IDE from EWARM IAR Embedded Workbench for ARM 6.40.2 and a ST-LINK to download the demo project to the evaluation board STM32L152RCT6 and I get the error Failed to read CPUID for Cortex device Be...
Posted on June 12, 2014 at 13:461. On page 32 of AN4031 by ST, it says that peripheral should be enable only after DMA stream enabled.http://www.st.com/st-web-ui/static/active/en/resource/technical/document/application_note/DM00046011.pdfI have mult...
Posted on June 09, 2014 at 21:37 Hello, I have a problem with configuring ADC & DMA. This is the code ADC RCC -> APB2ENR |= RCC_APB2ENR_ADC1EN; ADC1 -> CR1 |= ADC_CR1_SCAN; ADC1 -> CR2 |= ADC_CR2_EXTSEL_0 | ADC_CR2_EXTSEL_1 | ADC_C...
Posted on June 12, 2014 at 10:34There is a problem, when I using FPU in some RTX task because FPU instructions is also used in RTX's SVC_Handler. So I've decided or disable FPU globally in project (didn't work, cant compile HAL_CM4.c) or disable for...
Posted on January 27, 2014 at 23:27Given an F4 (F405 and F429) or even F2 .. Is it possible for a DMA to be both MemoryToMemory and have the rate of delivery be set by a timer? ie: I'm effecting a copy from an array in RAM, to a GPIO. (a byte at a t...
Posted on June 12, 2014 at 01:54Hi ST,I've run into a brick wall trying to interface my STM32F4 Discovery board to a SD740 sensor using SPI. I'm having trouble writing the SPI1_send function, and getting to work. (I hope my SPI1_init is correct).Wou...
Posted on June 11, 2014 at 21:34 I am using the stm32f103re and I need 5MHz pwm on pb. I should be able to switch to using PB.10 by just making the appropriate changes in RCC_Configuration and GPIO_Configuration, correct?
