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Forum Posts

STM3F2 DMA Circular Mode Overwrites Data

Posted on March 22, 2015 at 23:55Hello,I have a global structure that contains an array of bytes of 1024 elements. I have declared this array towards the beginning of the structure. I have set up DMA to import USART3 data into this array. I have set...

ckern by Associate II
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STM32F2 Timer / Interrupt Help

Posted on March 19, 2015 at 14:10STM32F2 Timer / Interrupt HelpI have an HS USB project that reads information at a high data rate from a serial bus (upwards of 4MBd) and then sends it to a server. Everything is working fine, except....I run into so...

ckern by Associate II
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  • 4 replies
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FATFS writing file problem

Posted on March 21, 2015 at 18:14Good day,I have some problem:For example, I am reading and writing some data to file. But if I will not use function f_close(); my filesize will be 0.Is it possible to do something about it?//Nikolaj

hitsumen by Associate II
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STM32F4 I2S slave issue (one more time :()

Posted on March 19, 2015 at 22:55I try to connect audio channel of GSM module with STM32F401 throw full-duplex I2S interface which operate in PCM audio protocol. I configure DMA for rx & tx by 10ms chunk of data - and everything works fine except th...

yuriy by Associate II
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I2C Problem STM32f072b

Posted on March 21, 2015 at 16:51Hi, I' am trying to let STM32f072b discovery board to communicate with my I2C device(TSL2561T). But I'm having problem in that which I don't know why the code is not working. I know where it stops (marked with orange...

eeyjws by Associate II
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F103C8 Clock issue?

Posted on March 20, 2015 at 19:41 Hello, I'm looking for some help about the main frequency. Maybe I do not understand correctly the documentation. My test program is just a blinking LED on PORTA PIN 0. RCC->APB2ENR |= RCC_APB2...

TIM_SetCounter(TIM4, 32000); problem

Posted on March 19, 2015 at 11:12Hi all! Anyone help me what mean of function “ voidTIM_SetCounter(TIM_TypeDef* TIMx, uint16_t Counter); For example TIM_SetCounter(TIM4, 32000);I don’t know how can calculate varieble uint16_tCounter.If you have an e...

Measuring time using an STM32F407VGT6

Posted on March 20, 2015 at 22:03Hello. I'm using a custom board for charging and testing batteries. Its 'brain' is an STM32F407VGT6 microcontroller. I'm developing in Ubuntu (14.04.2 LTS), using ChibiStudio (ChibiOS/RT 3.0 development branch and Ec...

STM32F4 I2C issue - solved

Posted on March 20, 2015 at 18:41Hello,we are migrating our device from STM32F1 to F4 (415RGT6).Basically wiring is very similar, connected peripherals too.We have one device that communicating over I2C bus, but with same code it is unable to work w...

zexx86 by Associate II
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