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epaper_display [2011/02/24 15:03]
steve_m [Driving the Motorola F3 e-paper display] sustain->retain
epaper_display [2011/02/24 17:19]
steve_m [Microcontroller]
Line 16: Line 16:
 \\ By the way, since I mentioned the TI Locosto baseband: Maybe someone wants to reverse-engineer the [[http://​bb.osmocom.org/​trac/​wiki/​CalypsoRomloader#​secure-RomloaderonCalypsoplus|serial rom-bootloader]] of this ARM7-based processor, so we can drive the display directly from the phone :-P \\ By the way, since I mentioned the TI Locosto baseband: Maybe someone wants to reverse-engineer the [[http://​bb.osmocom.org/​trac/​wiki/​CalypsoRomloader#​secure-RomloaderonCalypsoplus|serial rom-bootloader]] of this ARM7-based processor, so we can drive the display directly from the phone :-P
 ===== Interfacing with the display ===== ===== Interfacing with the display =====
-Normally, the baseband board and the display/​keypad pcb are connected with a 32-pin connector (exact model unknown). Luckily there are pull-up resistors and capacitors for every needed signal, so I decided to solder some wires there, instead of directly to the connector. The schematics of this phone are floating around the web (just search for **f3_schem.rar**).+Normally, the baseband board and the display/​keypad pcb are connected with a 32-pin connector (exact model unknown). Luckily there are pull-up resistors and capacitors for every needed signal, so I decided to solder some wires there, instead of directly to the connector. The schematics of this phone are floating around the webjust search for **f3_schem.rar**.
  
 |{{:​f3_wires_soldered.jpg?​350|thin wires soldered to the display pcb}}|{{:​f3_display_connector.jpg?​436|the connector of the display}}| |{{:​f3_wires_soldered.jpg?​350|thin wires soldered to the display pcb}}|{{:​f3_display_connector.jpg?​436|the connector of the display}}|
Line 54: Line 54:
 |P1.5|SPI clock|16|SPI_CLK| |P1.5|SPI clock|16|SPI_CLK|
 |P1.6|SPI MOSI|17|SPI_MOSI| |P1.6|SPI MOSI|17|SPI_MOSI|
 +
 +Note: even though the MISO signal is connected in the original phone, there'​s no activity at all, so I left it unconnected. Also, DISPLAY_BUSY0 and 1 seem to be identical.
  
 {{:​msp430_epaper.jpg?​300|Launchpad with connected display}} {{:​msp430_epaper.jpg?​300|Launchpad with connected display}}
epaper_display.txt ยท Last modified: 2011/07/27 23:48 by steve_m