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Shifting left – a general C question

Hi,I have a piece of CRC calculating code that I nicked from somewhere a couple of decades ago. I've been wondering about a few lines: *CRCVal ^= (*CRCVal << 8) << 4; *CRCVal ^= ((*CRCVal & 0xFF) << 4) << 1;(CRCVal is a pointer to a uint16_t varia...

EThom.3 by Senior
  • 266 Views
  • 12 replies
  • 6 kudos

Resolved! M24M01E-FMN6TP not able detect the I2c address

Hi,  I have made a customized board using STM32 and M24M01E-FMN6TP, but not able to communicate, kindly find the schematic attached. I have written a code for I2c scanner just to test the circuit and it is giving me no i2c device is connected.I have ...

Faizan75 by Associate II
  • 234 Views
  • 5 replies
  • 1 kudos

Resolved! Need help to identify component

Hi folks, I hope you're able to help me out. I need to replace a few of the components in the picture. Sorry for the poor quality.I did of course google the markings but have had no results. - The measurements of the package is 2.4mm x 4.2mm.- To me ...

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Waerloga by Associate
  • 129 Views
  • 1 replies
  • 1 kudos

How to safely debug critical circuits

Hi, i believe i have blown up some IC`s while debugging. Its a BLDC driver. Now i wonder how i safely could debug it. I know of the intrusive nature of debugging, but not that well. Does anyone know a good article, or can provide some knowledge? Espe...

Tobe by Senior III
  • 186 Views
  • 4 replies
  • 4 kudos