USB help stm32f4
Posted on April 30, 2013 at 09:35Hello I am using stm32f407 ; this function USBH_Process(&USB_OTG_Core, &USB_Host); execute about 4 seconds then start the application ; is there any suggestion to decrease the excution time ?
Forum Posts
Custom STM32 board bootup problem - Fried MCU? Help!
Posted on April 17, 2013 at 10:11Hi All, I have made a custom board with the STM32F405. When I apply power to the board, the MCU is drawing lots of power (like ~200mA+!). I haven't loaded any code onto it, its straight out of the box. I have 2.2uF c...
generate one pulse
Posted on July 08, 2011 at 06:18I am trying to generate a single pulse using the TIM_SelectOnePulseMode() function in STM32f10x_tim.c source file. But I am not able to get the pulse. why? I am using TIM4 CH2... Any advice? int main(void) { TIM_C...
Programming Issue
Posted on April 30, 2013 at 11:30 Hi guys, I've been working on interfacing an SD Card with this board but I'm having some issues on programming. The problem is that I've made a function to read a cluster on the sd card however as soon as I u...
open drain GPIO output
Posted on April 29, 2013 at 16:36Dear all, A question about configuring GPIO outputs, I've connected a Led to 3v3 and the other side via a resistor to the STM32F051. I want to switch on the led with the GPIO_SetBits() function However my led is by d...
strange interrupt's behaviour
Posted on May 01, 2013 at 12:37hi,i want to generate an interrupt when i get a specified value from MEMS acceleromter :when I reach this value sound starts and when I'm below it the sound stops but the interruption behaves contrary to what I want:Wh...
Stm32f207 usart6 reading a key pressed
Posted on May 01, 2013 at 08:23Stm32f207 usart6 reading a key pressed
.s37 from .hex in keil or iar
Posted on May 01, 2013 at 08:56helloI have to flash.I want to create .s37 file from .hex file. Please help me.
SPI NSS Hardware control
Posted on April 30, 2013 at 10:51Hello, I have a problem with SPI communication in case of NSS Hardware control. NSS of SPI Signal is always low. I know that it is low when SPI is enable, and high when SPI is disable. But it is always low. why? The ...
ADC protection and amplification circuit
Posted on April 29, 2013 at 09:24Hello, I need circuit, which will be protect ADC input against overvoltage. Also, it should amplification low-level voltage (from sensor for example). Do you have something like this?Thank you.
