STM32 MCUs Products

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STM32 external sdram strange problem

Posted on August 12, 2016 at 07:27STM32 external SDRAM(32bit width,FSMC interface) 16bit and 32bit writing OK,but 8bit writing is not OK, shown below,source file is also attached. Test Results uint8_t  write_buf1[100];write_buf1[0] = 0x01;  //0xC000...

lbguan by Associate
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fp issue: vstm/vldm all 32 fp registers at once

Posted on August 12, 2016 at 01:09 A few details: both code and data caches are enabled. 216MHz SysClk. Timer ISR schedules a task every millisecond. SCB.SHCSR=1<<18 to enable use of usage fault ISR for the fp trap handler. All ISR’s mentioned a...

picguy2 by Associate II
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STM32F103 USART2 CAN'T SEND DATA

Posted on August 08, 2016 at 08:42Hi all,I've built USART2 connection with using none-flow-control via rs485 through my pc. Sending data from my pc to stm32f103 is working correctly however, i can't send any data from stm32 to my pc.Do you have any ...

STM32F103RET High speed communication with SDcard!!!

Posted on August 12, 2016 at 14:26Hi I want to know if I can reach a writting speed of 3-4Mbytes/sec to MicroSD ?Microcontroller is STM32F103RET.Clock rate: 72MHz.MicroSD 2-4G calss 10.SDIO protocol.If you have any same experience , please to help m...

eleman3 by Associate
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SPI communication two MCUs - bitshift

Posted on August 12, 2016 at 12:12Hi, I want to transmit and receive data between two STM32F401RE NUCLEO boards. Performance does not matter, so the simplest approach seems to be using the blocking HAL_SPI_TransmitReceive(..) function on both sides....