Kai Liu / Mbed 2 deprecated LPC1114_EBadge

E-Paper Device (EPD) based MiniNote module, powered by mbed on LPC1114FBD48. Shared in public domain with enclosure in 3D step format, hardware interface compatible with microBUS interface. Anyone can contribute on this project.

Dependencies:   mbed _24LCXXX

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E Badge Development Status

Table of Contents

  1. Development Status & Log
  2. PinName for SPI
  3. 4KB/8KB support
  4. Display Frame Buffer

Development Status & Log

PinName for SPI

Only hardware supported PinNames can be used as hardware SPI. E-Badge uses software SPI as interface, leaves hardware SPI to external peripherals via mikroBUS.

UPDATE The orginal design comes from LPC1114FN28/FDH28 which has only one hardware SPI. Now we map EPD interface to second SPI of LPC1114FBD48/30x/32x, which is:

// EPD interface: CS | RST | DC | BUSY | MOSI | SCK
// SSD1606 epd(xp23,xp11,xp12,xp21,xp37,xp12);
SSD1606 epd(P0_6,P0_7,P2_0,P1_5,P2_3,P2_1);

4KB/8KB support

Since time is tight, we are going to push out 8KB mbed support to next step. Only 4KB is supported in first release.

Display Frame Buffer

Since we have 4KB device so far. We have to make decision between:

  • Internal 1K5 RAM framebuffer inside 4KB device
  • external 3KB FeRAM frambebuffer with 4KB device.
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