My goal is to measure the impedance value of the coil. First, I used 100 ohms as the correction resistor, and the feedback resistor was connected to a 100Ω resistor. The excitation amplitude is 2Vp-p ...
I have a PD-51 board on hand, which is Zhou Ligong's board, but I don't have any information on hand, so if you have it, please give me a copy... Thank you!
http://www.embedtools.com/pro_kaifa/51/51+....
When I was looking at the schematic diagram of the EVM board of DM642, I found that when the data lines of SDRAM are connected to the data lines of EMIF, every other byte is connected in reverse order...
[align=center][/align] [align=left]Shouldn't op alone produce a phase shift of -180 degrees? How come it is 90 degrees? [/align] [align=left]I would like to ask the experts for help[/align]...