Difference: RaspiElfDisplay (6 vs. 7)

Revision 72018-05-17 - PeterSchmid

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Software for the Raspberry Pi

The Raspi controls the display through its I2C interface.

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I still want to use the 1802 Membership Card's

Front Panel Card. That means I have to use the D-SUB connector. But there is no address bus on this connector, therefor the address is only valid as long as the DMA (load mode) is used. The data bus is not available too, you will see the data in the load mode (DMA) and the output port during the run mode.

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I still want to use the 1802 Membership Card's

Front Panel Card. That means I have to use the D-SUB connector. But there is no address bus on this connector, therefor the address is only known as long as the DMA (load mode) is used. The data bus is not available too, you will see the data in the load mode (DMA) and the output port (LEDs) during the run mode.

There is Python Library and Examples for Micro Dot pHAT on GitHub

from Pimorini itself. But I prefer plain C and wrote my own hex display driver microdot_phat_hex.c

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