STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

stm32 UART-DMA one character transfer problem

Posted on June 01, 2015 at 14:21Hello! I'm using STM32F407 processor. When I'm trying to send 1 byte via USART-DMA (for example 0x72) I get two bytes ''72 72'' in terminal.If I send two or more bytes everything is okay. If I send something from term...

mdg82 by Associate
  • 622 Views
  • 3 replies
  • 0 kudos

STM32F407 SPI-DMA Continuous Transmit and Receive.

Posted on May 27, 2015 at 12:11Hi, I am trying to configure the DMA based SPI communication for STM32F407. STM32F407 is the host controller(master), the slave is CC3100 WiFi module. I am implementing the DMA for SPI2. Following is my configuration c...

abhisheke by Associate II
  • 1144 Views
  • 6 replies
  • 0 kudos

STM32F4 FatFs f_open return FR_DISK_ERR

Posted on June 02, 2015 at 08:52 I'm using the FatFs library ver R0.10 to access the SD card. Here is my code: SystemInit(); USART_Configuration(); NVIC_Configuration(); /*-------------------------- SD Init ----------------------------- */ Sta...

Volatile variables causes issues with Coocox

Posted on March 21, 2014 at 10:34hello, I know that I should post this in Coocox forum, but I what to know if one of STM32 users faced this issue before: I have a strange issue with Coocox (COIDE V1.7.6), it may be a bug: - Optimization is set to -O...

moez by Associate II
  • 1411 Views
  • 7 replies
  • 0 kudos

STM32F427 FMC NBL0 NBL1

Posted on May 30, 2015 at 14:27Hi, I an laying down some decode logic for 2 x 16 bit SRAMs using Chip Select NE1, by bus configured for 32 bits 12 address lines. If I Write using address 0x60000000 the NBL0 and NBL1 signals are both low during the N...

Connecting COMP and DAC

Posted on June 01, 2015 at 22:00 Hello, I working with STM32F3, and my goal is to feed in an external voltage into COMP2 (non-inverting input) compared against another constant analog voltage (inverting input), in order to produce a calib...

theory by Associate
  • 407 Views
  • 0 replies
  • 0 kudos

Interrupt issue with timers and exti0

Posted on June 01, 2015 at 17:09Hi all, i'm new to cortex M4 STM32F4 processor and i have some problems with external interrupt handling and internal timer interrupt. Currently i'm trying this code on a DISCOVERY F4 board (with STM32F407) and i'm tr...

hexfet13 by Associate II
  • 858 Views
  • 2 replies
  • 0 kudos

STM32L152-EVAL DFU example

Posted on May 06, 2015 at 13:10Hi All, I am attempting to update my STM32L152 board over USB using the DFU driver (STM32_USB-FS-Device_Lib_V4.0.0). I generated a .dfu file using ''DFU file Manager'' and the supplied binary_template project. I left a...