72 lines
1.9 KiB
Plaintext
72 lines
1.9 KiB
Plaintext
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See the top level README for information on where to find the
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schematic and programmers reference manual for the ARM processor
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on the raspberry pi. Also find information on how to load and run
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these programs.
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See the top level README for information on how to connect the raspi
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uart to your host computer.
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This example uses the spi interface with a Nokia 5110 display, these
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are probably all recycled from old phones, who knows. There seems
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to be a large quantity of the out there.
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https://www.sparkfun.com/products/10168
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http://www.adafruit.com/products/338
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I got 5 of them on ebay for $13 with pins.
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Perhaps some soldering is required, in some way you need to hook up
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the signals.
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I use these, but bought the 100 pack
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https://www.sparkfun.com/products/10898
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F/F means Female/Female both ends are female which is what you want
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if you have a row of pins on yours.
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Raspberry Pi signals of interest, all on the P1 connector
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alt function 0 for these
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GPIO8 SPI0_CE0_N P1-24
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GPIO10 SPI0_MOSI P1-19
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GPIO11 SPI0_SCLK P1-23
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these are set gpio outputs
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GPIO7 SPI0_CE1_N P1-26
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GPIO25 GPIO_GEN6 P1-22
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power and ground
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+3V3 P1-1
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GND P1-25
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Now the sparkfun and adafruit and ebay special dont have the same
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pinout, the same signals are there but not necessarily in the same
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order. So this chart is not necessarily in the same pin order as your
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display. The names may not exactly match either...
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Nokia 5110 to raspi
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GND P1-25 ground
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VCC P1-1 power
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DIN (MOSI) P1-19 data in, spi mosi
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SCK/CLK P1-23 spi clock
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D/C P1-22 data/command
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RST P1-26 reset
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CS/CE P1-24 spi chip select
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Your board may have a row of pins above and below the display, they
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are the same you only need one row.
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The various examples out there use the same init routine.
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