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clock set problem

Posted on February 06, 2015 at 17:47 hi all mcu stm32f103 VBAT pin I have connected the to battery mcu or external I have connected the 3.2 volts I have set rtc_setcount hour =23:59:59 hour = 0 now works no pr...

kemal by • Associate II
  • 386 Views
  • 1 replies
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Uart in STM32F4

Posted on January 31, 2015 at 16:03I create a program for uart interrupt receiving by cubeMX in ARM-MDK. I want interrupt receivng from PC(when for example 0xFF received from pc by hyperterminal or docklight). I write bellow program. main() {    whi...

mikropart by • Associate II
  • 1673 Views
  • 8 replies
  • 0 kudos

redirection

Posted on February 06, 2015 at 16:31Hi All, I'm developing an application with STM32F407, keil RTC rtos and keil libraries. I've implemented the redirection of the printf message as suggested in many examples. It works fine, and I see the applicatio...

davide2 by • Associate
  • 409 Views
  • 1 replies
  • 0 kudos

Emwin button event

Posted on February 06, 2015 at 17:37Hey,In my project, I add some buttons on the dialog, but I have an issue on the button event. the click event WM_NOTIFICATION_CLICKED works well but th release WM_NOTIFICATION_RELEASED is never triggered, I have t...

kqian by • Associate II
  • 425 Views
  • 0 replies
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Input Capture Rising Edge IRQ Triggers A Update Event IRQ

Posted on February 04, 2015 at 17:46Hello I'm using the Update Event (UEV) of TIM1 to count the CNT overflows (CNT > ARR). I'm using the capture compare IRQ of TIM1 on channel 1 to catch the rising edges of an input signal. Now I've got a strange t...

oli by • Associate II
  • 655 Views
  • 5 replies
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STM32F3 UART with DMA transmit max. 4 bytes

Posted on January 02, 2015 at 18:32Hello, I've test the STM32F303 for using it in a new project. The configuration and libbrary are used from the CubeMX with the IAR compiler. Now I can maximum transmit 4 bytes over the UART with one DMA transfer. H...

bm2 by • Associate III
  • 481 Views
  • 1 replies
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What is the proper way to send HID key codes to host?

Posted on February 06, 2015 at 06:12I am using the st32cube HID middle ware library to implement a keyboard device.  I am using USBD_HID_SendReport to send key data to the host.  But this function will exit without doing anything if the bus is not a...

h500ca by • Associate
  • 475 Views
  • 0 replies
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STM32 TIM2 ARR requires 32-bit access

Posted on February 05, 2015 at 21:30 Hello, I found some unexpected behaviour with the 32-bit TIM2 module on STM32F4xx devices, and many others. When accessing the TIM2->ARR (a 32-bit timer) register, 16-bit writes have the following behaviou...

lcd segment & i2c stm32l053

Posted on January 28, 2015 at 05:29 I created a project by STM32cubeMX, the project has : I2C interrupt communication with sensor, display data by LCD segment: int main(void) {   MX_GPIO_Init();   MX_I2C1_Init();     MX_LCD_Init(); ..... ... .. B...

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