4 از 5.0 با 16 رای
مستندات:
عملکرد 128x64-Reprap-LCD
Note:
1. Some versions of this board have the notched connectors that connect in wrong way. If your controller only flickers and beeps, cut off the notches on the cables and insert them upside down.
2. Some clones of this board use really slow LCD displays so their signal timings need to be adjusted.
3. This signs show that the display gets slightly corrupted. (which can also be cabled to long)
4. In marlin frame ware(1.1.9) add the following to configuration.h to override the default settings.
add "#define ST7920_DELAY_1 DELAY_NS(0)"
add "#define ST7920_DELAY_2 DELAY_NS(0)"
add "#define ST7920_DELAY_3 DELAY_NS(63)" // this is the defaults for a 16mhz processor (ie a mega2560)
This is used as follows.
For each bit that is sent over SPI
Set the clock pin low and wait for ST7920_DELAY_1
Set the data pin and wait for ST7920_DELAY_2
Set the clock pin high and wait for ST7920_DELAY_3
Slower LCD's seem to need ST7920_DELAY_3 increased.
Package Include:
1x LCD 12864 Smart Controller
1x Smart Adapter
2x 30cm FC Cable