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quadrature encoder values

Posted on June 07, 2015 at 19:46hi everyone  i m going to interface encoder with motor the encoder is working perfectly and counting up to 0xFFFF in clock wise direction but when i rotate in counter clockwise direction it,s counting from 0 but from ...

waaizkhan by Associate III
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  • 2 replies
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Word Select Frequency when I2S format is setting to PCM

Posted on February 11, 2014 at 18:18 Hello, Today, we are using a STM32F405VG which is connected through I2S to a PCM interface of a Bluetooth Controller. The STM32F405VG and the Bluetooth Controller exchange audio data through this I2S with audio f...

vincent by Associate II
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  • 9 replies
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STM32F429 NRST pin

Posted on June 09, 2015 at 13:46Hello,is it possible to generate a interrupt when the pin NRST is activated??I need to reset some variable before the reset of the microcontroller.Thank's!!! #stm32f4-reset-pin

gerson74 by Associate II
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DMA Stream Handler

Posted on May 29, 2015 at 12:46I am novice to ST family. I have added DMA1_Stream5 Handler in keil example. When I put breakpoint over there ,it is not executing . Here is my code . int main(void) {               GPIO_InitTypeDef GPIO_InitStructu...

warning: ''__packed'' redefined [enabled by default]

Posted on June 09, 2015 at 10:00I'm getting the following message from my compiler:  warning: ''__packed'' redefined [enabled by default] which is defined in the usb_conf.h file from the USB_OTG library, and in the cdefs.h file from the gcc. Any ide...

STM32F3 Option Byte problems

Posted on May 12, 2015 at 08:35Hello I'm using an STM32F302CB. I use this code to protect the first pages of code which contains a bootloader:[code] uint32_t write_protected = FLASH_OB_GetWRP(); uint32_t protect_mask = OB_WRP_AllPages - BOOTLOADER_W...

Using FATFS with stm32f4, adjust cluster size

Posted on June 09, 2015 at 07:05Hi , I am using chan's FATFS with stm32f4 discovery,, So I could see that two paramateres, &sharpdefine    _MAX_SS        512 and &sharpdefine BLOCK_SIZE            512 But when I change it to 4096 the FS is no longe...

USB Host TXERR

Posted on June 09, 2015 at 03:52I'm about at my wit's end with this problem. I am trying to get USB host mode to work on the F407 Discovery board. I am using CubeMX with the USB middleware code -- version 4.8.0. Keil IDE.When I connect a keyboard, I...