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STM32F103 Keil USB-CDC hangs up

Posted on August 13, 2014 at 13:50Hi guys,Keil example USB-CDC stuck under load.I just can’t believe such a basic example is unreliable.I’m sure Keil USBstack is widely used in production so I guess I do something wrong.Could you point me what is wr...

anpilog by Associate
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Unable to enter Standby mode on STM32F030

Posted on August 06, 2014 at 16:35Hello,I have a board equipped with a STM32F030R8T6. It runs for app. 0.1 s and then goes into StandBy (or should) for 10 seconds. It is woken up by IWDG. It looks like it is working OK,  it executes and goes to _som...

h23 by Associate II
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DMA Interrupt is not pre-empting USB interrupt

Posted on August 13, 2014 at 02:22 I am having some trouble getting the expected behavior out of my interrupts for DMA and USB. Using the STCubeMX HAL libraries, I have configured the interrupts as follows: /** * @brief System ...

USART bytes not received after a long transmission

Posted on August 12, 2014 at 16:00 Hey, I am trying to communicate with SIM900 GSM module using STM32F072RB chip on discovery board. I have written the code, which works fine for a few commands. I can transmit and receive small commands and I re...

Using exti alongside systick

Posted on August 13, 2014 at 00:24I have an exti set up on a gpio, which when triggered, sends a command to a peripheral. Within that piece of code is a small delay which makes use of the systick. It doesn't seem to work though. Guessing the issue i...

SPI slave receives only last byte

Posted on August 06, 2014 at 20:23 Background: - I have a system with two STM32F407 processors communicating via SPI. - I am using the HAL drivers generated by STMCube - They use the same firmware and adjust their behavior into master or sla...

Error in the type definition of ''GPIO_InitTypeDef''

Posted on August 12, 2014 at 20:55In stm32f4xx_hal_gpio.h (delete comment) typedef struct {   uint32_t Pin;   uint32_t Mode;   uint32_t Pull;   uint32_t Speed;   uint32_t Alternate; }GPIO_InitTypeDef;But to select the alternate function you need 64 ...

rm2399 by Associate III
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STM32F407 Discovery + HC-05 bluetooth + PC putty

Posted on August 11, 2014 at 15:16Hello,i am new to forum, and also to stm32 discovery. So please some patience :).I am trying to send from discovery to PC.Tried with USART6 + UART2USB and in putty on PC everything works.Then i connected HC-05 to sa...

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