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You know that although EMI is an integrated module to connect external memory, it needs logic interface (latch) when EMI is wanted to use. However, PIC18F452 hasn't EMI and you can use PIC18F452 with or without any logic interfaces. If you use latch circuits, you save up pins of the...
Hi,
Some of PIC18 series have External Memory Interface (EMI) but PIC18F452 hasn't. https://ww1.microchip.com/downloads/en/AppNotes/00869b.pdf
If you still think to use PIC18F452, you must write your code to manually control data bus and control bus for RAM because it hasn't EMI module.
By...
directional coupler
Thanks for your attention. I have to use a +30 dBm transmitter and a receiver with single antenna but there is too much loss if I use the coupler. If the output power is +50dBm, coupled port power is +30 dBm but it is not useful because +50 dBm is too much power. Are there...
directional coupler
Hi,
I have a 30 dBm power amplifier. If I use 20 dB directional coupler with the power amplifier, how much power does coupled port give?
Regards.
Hi,
I'm a student and I have to design a project.
I started to study passive UHF RFID two weeks ago but I realized that passive UHF RFID distance is too short for my project so I decided to design semi-passive UHF RFID tag and reader. I need some advices. Where should I start?
rfid reader design
Hi,
I'm a student and I want to design a passive UHF RFID reader but I don't know anything about UHF RFID reader. I need some advices. Where should I start?
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