STM32 MCUs Products

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Forum Posts

DAC to Audio Out

Posted on December 13, 2011 at 23:24Has anyone been able to use the DAC output (PA4) to generate sound on the headphone port? It seemed like a trivial thing to do, set up the CS43L22 in analog pass-thru mode... but that was 3 days ago. I generate a ...

dreschel by Associate II
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Flash programming error in Keil MDK

Posted on February 11, 2012 at 16:27Hi! I just started using the STM32F4 discovery board with Keil development environment, and I have a small problem, that I can not program the flash memory of the microcontroller using the Load button. In Keil Bui...

miklos by Associate II
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  • 2 replies
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u32 should be alligned ?

Posted on February 11, 2012 at 01:17hello One question: when i am using: char table[10]; (...) *(unsigned int*)&table[1]=0x12345678; should the pointer be dword alligned in RAMy ? Can I make safely such access? Or it is forbidden in ARM architecture...

wadi by Associate II
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Timer1 trigger for ADC2

Posted on February 10, 2012 at 11:54Hi, Using STM32F205RCT6. We used ADC1/DMA with Timer 1 as trigger and worked fine. The temperature sensor is only connected to ADC1 so I have to move ADC1 -> ADC2. Now we have problems with the trigger - it doesn'...

USART, 115200 not work

Posted on February 09, 2012 at 17:11Hello I am using STM32RBT6 with my board and all is good except serial with 115200 baud rate, 57600 and lower is working correctly. I just see weird characters when receiving data. I can't get it work either with ...

zexx86 by Associate II
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OSC32 - use pc14/15 as GPIO

Posted on February 08, 2012 at 16:02Hi, How can i use PC14/15 as GPIOs? I turened off  LSE by using this function and configure PC14/15 as input floating:      RCC_LSEConfig(RCC_LSE_OFF);  But  the ports does not read any data, What do i miss?

ybitton by Associate II
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PDM audio software decoding library?

Posted on January 18, 2012 at 17:17 Here is a description of the PDM audio software decoding library from the AN3998 PDF: The PDM audio software decoding library includes one header file pdm_filter.h and binary/object codes for the following ...

ozvena by Associate II
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  • 4 replies
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Timer slave mode : Reset mode

Posted on February 09, 2012 at 11:51 Hello, I would like to use a timer on Reset mode, but I have some problem : My goal is to never call the timerinterrupt until the trigger input is switching. I want to enter in the timer inte...

Power consumption ?I

Posted on February 08, 2012 at 03:43Hi, Currently, I am designing an application board for STM32VLdiscovery with batteries. In order to decide the parameters of step-up converter, I would like to know the current consumption of STM32VLDiscovery, alt...

takita by Associate
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  • 1 replies
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STM32F4 max speed with FSMC

Posted on February 08, 2012 at 20:30I am new to arm and designing a new prototype board with a STM32F417 and 2 NAND Flash chips. In the data sheet it says the HCLK can go to 168MHz BUT it also says that the FSMC maximum clock is 60MHz at 3.3V.  Does...

kb by Associate II
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