klaute/SWRMeter
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klaute d774850054 Update 'firmware/firmware.ino' 
Main loop speed increased 10 times.
2016-10-14 21:25:31 +02:00
doc Schmatics of the si5351 breakout board added. 2016-09-22 10:07:39 +02:00
firmware Update 'firmware/firmware.ino' 2016-10-14 21:25:31 +02:00
pcb Last pins connected to the TFT port. Some parts moved around the schematic. 2016-10-14 16:46:41 +02:00
Si5351Arduino Si5351 arduino library added. 2016-09-14 20:04:29 +02:00
tools Two new functions added to set and get the clock correction factor to the si5351 chip. Also replaced the a0 a1 labels with fwd and ref text. 2016-10-12 20:32:46 +02:00
README.me Readme information improved. 2016-09-23 08:40:39 +02:00

README.me 

This project is reengineered out of the TenaTester build by ZL1CVD.
The firmware is completely written by myself, the wheatstone bridge was mostly drawn as seen in the TenaTesta demo videos by ZL1CVD on youtube. The electrical component values were modified by myself to fit my personal requirements. The si5351 prt in the schematics was replaced by an adafruit breakout board.

Ressources:
 * https://learn.adafruit.com/adafruit-si5351-clock-generator-breakout/wiring-and-test
 * http://community.silabs.com/t5/Timing-Knowledge-Base/Modifying-Output-Driver-Strength-of-the-Si5351/ta-p/112253
 * https://github.com/etherkit/Si5351Arduino
 * http://images.google.de/imgres?imgurl=http://www.kh-gps.de/si5351_4.jpg&imgrefurl=http://www.kh-gps.de/si5351.htm&h=483&w=1115&tbnid=p6ACt2AabOao6M:&tbnh=90&tbnw=208&docid=YzcwWac64G4VOM&usg=__tpZeibmT-PYky-rOAt6f3X7w_7s=&sa=X&ved=0ahUKEwjggd_4tI_PAhUEnRQKHQHdAVUQ9QEIJzAC