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STM32F103C6 HSE oscillator Hardfault

Posted on September 04, 2012 at 00:42Hello! Sorry for the new thread I'm new here, and I ran into a strange problem... I have a board with an STM32F103C6 micro, and I'm trying to switch the uC to use the on board  HSE crystal (12MHz) instead of the ...

holcsik2 by Associate II
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  • 3 replies
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measure time for a puls with ADC

Posted on August 29, 2012 at 16:40I need to measure the averige a signal is low using the ADC. Is there a way to connet the adc to a timer? I have nott been able to figure that out, so insted I have tried the folowing... Start systick at 1ms, that c...

oe2 by Associate III
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  • 6 replies
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UART junk values

Posted on September 03, 2012 at 09:20Hello, I was using UART4 pin PA0 and PA1 for my project. I have done all the initialization procedures right but ended up getting junk values at the output. below is my initialization function. void UART_LowLevel...

vivek2 by Associate II
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  • 9 replies
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Problems with usart comunication with interrupts

Posted on September 03, 2012 at 09:13Hi, I'm trying so hard to send and receive data through USART1 of my STM32. I'm using STM32VL_Discovery board, Modbus as communication bus with RS485 interface (I connect my micro to the bus through a MAX232 and ...

STM32F0 MIPS

Posted on September 03, 2012 at 15:29Hi, How many Million Instructions Per Second The M0?

Resolved! malloc library - _sbrk problem

Posted on September 02, 2012 at 00:47I was trying to use malloc in a project  which has been ported from an other platform. I get the message that... _sbrk  ... is undefined. This is used by _sbrk_r which again is used by malloc. I found no solution...

Zainka by Associate III
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  • 2 replies
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STM32F4 Bit Set Reset Register

Posted on August 31, 2012 at 12:09 The file stm32f4xx.h defines the BSRR as two 16 bit ''halves''. typedef struct { __IO uint32_t MODER; /*!< GPIO port mode register, Address offset: 0x00 */ __IO uint32_t OTYPER; /*!< GPIO port output...

John F. by Senior
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  • 4 replies
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Simulating Alternate Function Input

Posted on October 26, 2011 at 20:27In the STM32 reference manual (Doc ID 13902 Rev 13) in section 9.1.4 it states:It is also possible to emulate the AFI input pin by software by programming the GPIO controller. In this case, the port should be confi...

SDIO Wide Bus Enable Issue

Posted on April 11, 2012 at 10:00In my diskio.c wrapper for fatfs file system i have now got the problem of not been able to enable 4bit wide bus on SDIO. Below is the functions i call in disk_initailse().errorstatus = SD_Init();errorstatus = SD_Get...