[color=#333333][font=Arial]The bottom row is connected to GND, and the others are connected to IO. When scanning the keys, set the first row to 0, scan the first column, set the second row to 0, scan ...
The Cortex-M3/M4/M7 core has a DWT unit (Data Watch and Trace Unit), which contains a clock cycle register with the same frequency as the CPU clock. IAR EWARM's C-SPY debugging system implements a 64-...
The newcomer took over an old circuit and did not understand the testing principles of the fixture.
1. CN1 and CN2 will be connected to the DGND of CN1_1 and CN2_2 respectively (the DGND of the fixtur...
Selection of inductors and magnetic beadsAuthor: Electronic Bugs [ Print ][ Return ]In the PCB circuits of electronic devices, a large number of inductive components and EMI filter components are used...
After receiving the X-NUCLEO-IKS01A3 kit, I have been searching and downloading materials, reading relevant manuals and analyzing codes. I used the STM32F401RE development board and tested it under th...
[i=s]This post was last edited by a newbie on 2019-6-13 20:30[/i]I am very happy to receive the express delivery of Qinheng development board trial activity sent by the forum today. Thank you.The boar...