STM32 MCUs Products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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Imprecise Bus Faults and Write Buffer

Posted on August 18, 2011 at 15:58Hi All,Is there a way to disable the Write buffer on STM32F103xxx.The Cortex M3 reference manual talks about ''Auxiliary Control Register'' which can be used to disable write buffer. Which will turn all imprecise bu...

phani2 by Associate II
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Is ST tech support on vacation?

Posted on August 18, 2011 at 17:11Does anyone know if ST tech support is away. I had asked them some questions about the STM32F2xx DMA controller, and 2 weeks ago they replied. With a self-contradictory answer (it was kinda funny actually). So I rep...

USART interrupt problem

Posted on August 19, 2011 at 07:52Hi Guys, I'm working on Usart programming in IAR environment. But I got a problem. The USART interrupt handler seemed not to be called. Here's my code:void initUART2(){  USART_InitTypeDef  uart2Init;    USART_ClockI...

stm32f107 I2S3 MCLK not coming

Posted on August 19, 2011 at 08:32Hi,I was testing I2S interface on STM32F107 cpu. I had configured the chip to use I2S3_MCK clock as the Master Clock for the codec. I2S is set in master mode. I had set the MCKOE bit in the SPI_I2SPR register. But t...

mili by Associate II
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STM32F103C8 USART3 problems

Posted on August 17, 2011 at 04:27Hello there, i am having problems setting up USART3 on my STM32f103c8t6 chip. there seems to be nothing wrong with the code, but the tx pin does not seem to be functioning at all.I have tried my code on a STM32f103r...

Help, How to set Read protection in STM32F207

Posted on August 18, 2011 at 07:34use API set the RDP to Level_2 : if ((*(__IO uint8_t*)(OPTCR_BYTE1_ADDRESS) != (uint8_t)OB_RDP_Level_2))  {   FLASH_OB_Unlock();   FLASH_OB_RDPConfig(OB_RDP_Level_2);   FLASH_OB_Lock(); } and read value from OP...

jun_01 by Associate
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