westaust55
Moderator
Having recently salvaged a PT6961 chip from the display of a decommissioned DVD player, I have done some experimenting and put together the attached "Getting Started" tutorial for anyone else who may find chip this interesting or find themselves in possession of a display using the PT6961 chip.
Finding the complete (18 page) version of the most current (V1.7 dated Mar 2011) datasheet took some time Googling as many datasheet archives only hold a 4/5 page version with no details on how to drive the chip.
I did find some sources of the PT6961 on Ebay and also found reference on other forums to folks who had purchased 4-digit 7-segment displays with the PT6961 as the driver chip and seeking help to get it going. Seemingly no past posts on the PICAXE forum for this chip.
Note that the MAX6955 is another chip (using i2c comms instead of SPI) which does have a few advantages over the PT6961 such as 8-digit 14/16-segment driver, and inbuilt decoding for ASCII character set. I may cover this chip another time.
In addition to the tutorial, I have attached a copy of the 18M2 Demo program code so the formatting is complete/correct.
Finding the complete (18 page) version of the most current (V1.7 dated Mar 2011) datasheet took some time Googling as many datasheet archives only hold a 4/5 page version with no details on how to drive the chip.
I did find some sources of the PT6961 on Ebay and also found reference on other forums to folks who had purchased 4-digit 7-segment displays with the PT6961 as the driver chip and seeking help to get it going. Seemingly no past posts on the PICAXE forum for this chip.
Note that the MAX6955 is another chip (using i2c comms instead of SPI) which does have a few advantages over the PT6961 such as 8-digit 14/16-segment driver, and inbuilt decoding for ASCII character set. I may cover this chip another time.
In addition to the tutorial, I have attached a copy of the 18M2 Demo program code so the formatting is complete/correct.
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