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Need help getting 1.8V SD card working on STM32H743

I have a new board design that interfaces an STM32H743 to a uSD card using 1.8V I/O. The SD Card is powered by 3.3V, and the card I am using supports the LVS mode of SD. I'm having a hard time trying to get the card up and running, and my searche...

JDell.3 by Associate
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  • 2 replies
  • 1 kudos

Bldc mechanical resistance

Hello i want to implement a variable mechanical resistance using a BLDC.​So for example the shaft of the motor is turned by an external force and the bldc tries to counteract the force to the tune of e.g. 100Watt.​Since the bldc acts like a generator...

Hos by Associate II
  • 416 Views
  • 1 replies
  • 0 kudos

Resolved! how to enable ETM Trace

Hello,I am using STM32F4 (nucleo F439ZI), so Cortex-M4. I am trying to enable ETM tracing and see something on TRACE pins, I am using STLINK for SWD and observing TRACE pins with an oscilloscope. I enable the trace pins on pin configuration, and enab...

mete by Senior II
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  • 2 replies
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Resolved! usart.c

I want to use the DMA for receiving data over USART. I have configured the DMA as a circular Buffer. To detect the end of the USART package I use the receiver time out.My Problem is, that when the receiver time out interrupt is triggered, not all Byt...

MLudw.1 by Associate
  • 1066 Views
  • 3 replies
  • 0 kudos