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?
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...
