STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...
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?
Posted on June 10, 2014 at 00:33Can you use a single timer to make a quadrature divider? What I mean by this is can you take in a quadrature signal, have the timer increase its CNT register and then toggle channels 3 & 4 based upon a particular CNT ...
Posted on June 11, 2014 at 18:25Hey, I'm using the STM32F207VGT6. I see there is a duty cycle of 45%-55% on the input clock. Is this the same as the jitter spec- can the duty cycle chabge by 10% in a clock cycle and everything will still be OK? Cal...
Posted on June 11, 2014 at 00:24Hello All, I'm trying to implement a CAN bootloader to flash my firmware over the CAN bus network. I'm using the OLIMEX STM32F405 board with CAN transceiver hooked up to both CAN peripherals. I wrote a host applicatio...
Posted on December 11, 2013 at 20:54I am attempting to erase a FLASH sector, but the process hangs. Any ideas on why this might be happening? FLASH_Unlock(); FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPER...
Posted on June 11, 2014 at 10:58Hello,I can't found a guideline for migrating from STM32F2 (207) to STM32F4 (429) on st.com. I find only STM32F1 to F2 or F4Has anyone docs or note about it? Or some reference to doc...Are there any different between ...
Posted on September 25, 2012 at 00:36When I use DMA on the transmit SPI2 chanel (STM32F205) I consistently get FIFO errors at the end of the transfer, even though the FIFO is disabled. I verified the DMDIS flag is 0 in the DMA_SxFCR register but th...
