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NRST Hardware Question

Posted on January 19, 2017 at 12:55Hey,I searched for this in the hardware development sheet but there was no real answer to my question. I do not want to use a switch at the NRST input, because i think everything what the switch does can be made wi...

luk by • Associate II
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NSS input not take into account on SPI SLAVE

Posted on January 18, 2017 at 10:47I have a system with 1 STM32F407 and 3 STM32F401. The 407 is the master  of a communication with SPI with the 3 slaves. On the slave a use SPI in slave mode with DMA in RX/TX. On the slaves the input NSS is used in...

New to external Sram Sdram

Posted on January 17, 2017 at 09:08Hello all We are new to external SRam and Sdram so I have some question we could don't verify the answer maybe because of language or lack of knowledge.we need to add external ram to stm32f4  and stm32f7So how to c...

HAL_UART_Transmit_DMA/IT Returning STATE_READY too fast

Posted on January 13, 2017 at 23:27 Preface: I have been working with the DMA/IT TX/RX successfully and this is the first I've ran into this problem. When trying to transmit back to back, my second transmission cuts off half of the first. Now,...

Sam V by • Associate II
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UART: Communicate faster with a PC ?

Posted on January 18, 2017 at 16:54PC computer  seem to allow  serial communication up to 256,000 bps over USBBut the ARM based Cortex M7 like STM32F746xx have 25 communication interfacessome of them capable of up to 27 Mbit/s Is there a way to com...

Reset Reason STM32Fx

Posted on January 18, 2017 at 09:45Hi,is it ensured that there is just one bit set in the RCC_CSR register when it is cleared and afterwards a certain reset occurs? Or is there a case so that more than one reset reason bit becomes set?There is no st...

sascha23 by • Associate II
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