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Posted on October 29, 2012 at 01:55Hello, I am trying to add VCP on STM32F4Discovery but have some issues which I am not able to figure out. When I add this command USBD_Init(&USB_OTG_dev, USB_OTG_FS_CORE_ID, &USR_desc, &USBD_CDC_cb, &USR_cb); in ...
Posted on October 28, 2012 at 20:05Hi everybody. Is it possible to measure execution time of program when I debug the program by using of hardware debugger ST-LINK V/2? I use uVision 4 studio (lite version) by KEIL and discovery board for STM32f0 wi...
Posted on October 29, 2012 at 02:03Dear readers, the attached program for the STM32F407VGT6 (on the STM32F4 Discovery) should generate an interrupt every 500ms. The ISR toggles GPIO pin D14, which lets the LED (red) connected to it blink with 1Hz. T...
Posted on October 27, 2012 at 19:35Hey Guys: Please take it easy on me, I am a rookie STM32 user. I've recently ''adopted'' a new project from my employer due to the old engineer leaving the company abruptly. I've been tasked with flashing several...
Posted on October 28, 2012 at 17:18 I am trying to write an i2c driver for my stm32f100 discovery board. To verify that it is setup right, I want to send a start condition and check to see that the SDA line goes low while SCL stays high. I have ...
Posted on October 25, 2012 at 09:18 Hi, I wanted to create a delay function, and I thought of something classic like this: whlile(n_count){ n_count--; } but how do you know how long it loses precisely my function? I believe that ther...
Posted on October 27, 2012 at 20:36Dear STM-Experts, i tried my first PWM with the STM32F4Discovery. It should create a 7 MHz PWM with 50 % duty-cycle. But i can only get a changing 8 bzw 6 Mhz Pwm like shown here: Here is the code (Picked up and th...
Posted on October 26, 2012 at 14:24Hello everybody!Does anyone can give my working sample of connecting two stm32f4discovery via I2C?I've spent a lot of time, but nothing works.Thank you! #stm32f4discovery-i2c
Posted on June 15, 2012 at 19:06Hello Everyone, I've had issues a couple times getting my Real Time Clock to correctly alarm and wake up my processor. My most recent issue had me reading through many posts on this site to try to figure out my probl...
Posted on October 24, 2012 at 17:49I use an external 8.0 Mhz crystal connected to the HSE pins. I use STM32F2xx_Clock_Configuration_V1.1.0.xls utility with HSE_OSC setting to 8.0 MHz and HCLK setting to 120.0 MHz and let generate the file system_stm...
