1
\$\begingroup\$

I have a 3.3V SPI flash programmer that I would like to use to flash a 1.8V SPI flash chip.
I have read that I could use a logic level converter to do this but I can't find wiring diagrams.

There is a good article here "How do I write to SPI flash memory?" on how to flash SPI but I can't seem to find any good article on how to wire a Logic Level Converter like "https://www.sparkfun.com/products/12009" to convert 3.3V to 1.8V to flash a 1.8V SPI chip with a 3.3V programmer.

\$\endgroup\$
  • \$\begingroup\$ Not even the hookup guide linked from that page? \$\endgroup\$ – Ignacio Vazquez-Abrams Sep 9 '15 at 14:50
  • \$\begingroup\$ The hookup guide talks about 5V to 3.3V conversion so I was not sure if I need to add another resistor or a DC converter to bring the 3.3V down to 1.8V. \$\endgroup\$ – goroth Sep 9 '15 at 16:24
0
\$\begingroup\$

Well my understanding of the logic level converter was wrong.
I had thought it could also convert voltage but that is not correct.
I need to supply 2 different voltages. A 3.3V on one side and a 1.8V on the other side.

Anyway, I found a link that contained the wiring I needed.
Here is a pic from the link.
http://fs2.directupload.net/images/150517/eqkfw8e9.png

enter image description here

| improve this answer | |
\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.