Frank Vannieuwkerke / Mini-DK

Library for Mini-DK board

Dependencies:   SPI_TFT_ILI9320

Dependents:   LPC1768_Mini-DK_EasyWeb_DM9161 LPC1768_Mini-DK LPC1768_Mini-DK

Fork of Mini-DK by Frank Vannieuwkerke

Mini-DK board overview (Micro SD connector is at the bottom side)

One serial interface , uses CP2102 (USB to RS232 interface, support ISP download )

RJ45-10/100M Ethernet network interface (Ethernet PHY: DM9161)

2.8 inch TFT color LCD interface (SPI interface or 16Bit parallel interface)

Touch panel controller XPT2046 (ADS7843 compatible)

USB 2.0 interface, USB host and USB Device interface.

TF SD / MMC card (SPI) interface.

Two user buttons, One Reset button and ISP button , One INT0 button, two user-programmable LED lights

Serial ISP download, Standard 20-pin JTAG download simulation debugging interface.

Selection between external 5V power supply or USB 5V supply.

Board size: 95mm * 78mm

All IO available on extension connectors

04/01/13

Erik Olieman (http://mbed.org/users/Sissors/) joined the code development for the Mini-DK board.

Thanks to his input, we were able to obtain a tremendous speed gain, remove warnings, ...

An overview of all modifications is stored in modifs.h

The old page (http://mbed.org/users/frankvnk/code/LPC1768_Mini-DK/) contains the demo code.

IMPORTANT : Due to a change in the mbed libraries (Stream()), we cannot use the printf instruction - we need to use <SPI_TFT>.printf (example - see main.cpp in http://mbed.org/users/frankvnk/code/LPC1768_Mini-DK/)

WARNING: filetoflash (SD to CPU flash)

The SPI_TFT library contains an option to copy an image from the SD card to the CPU flash memory. This allows you to use an image as background without speed loss when writing other text and graphics.

By default, this option is enabled.

It can be disabled by uncommenting the #define mentioned below in Mini_DK.h:

#define NO_FLASH_BUFFER

Since the flash memory has limited write endurance, DO NOT use this feature when you intend to read multiple images from the SD card (eg: when used as a photo frame).

14/01/13

A newer version of the Mini-DK has been released by the manufacturer: Mini-DK2. They replaced the DM9161 PHY with a LAN8720A PHY and better buttons are fitted on the board. All other hardware remains the same. Code for this PHY is available from the NXP MCU SW application team. This allows us to use the mbed 'EthernetInterface' library with little modifications. Further info - see http://mbed.org/forum/mbed/topic/3684/?page=1#comment-18473.

Notes:

The code in 'lpc_phy_lan8720.c' uses 'msDelay' - needs to be replaced with 'osDelay'.

A custom MAC address can be defined using following code:

extern "C" void mbed_mac_address(char * mac) {
 
// define your own MAC Address
  mac[0] = 0x00;  
  mac[1] = 0x01;  
  mac[2] = 0x02;  
  mac[3] = 0x03;  
  mac[4] = 0x04;  
  mac[5] = 0x05;           
  
};

/**************************************************************************************************
 *****                                                                                        *****
 *****  Name: Mini_DK.h                                                                       *****
 *****  Ver.: 1.0                                                                             *****
 *****  Date: 04/01/2013                                                                      *****
 *****  Auth: Erik Olieman                                                                    *****
 *****  Func: Includes, pin and macro Declarations for the Mini DK board                      *****
 *****                                                                                        *****
 **************************************************************************************************/
//Uncomment the following line if you need more flash memory.
//#define NO_FLASH_BUFFER

#include "SPI_TFT_ILI9320.h"
#include "Arial12x12.h"
#include "Arial24x23.h"
#include "Arial28x28.h"
#include "font_big.h"
#include "Touch.h"

#define DK_KEY1     P2_11
#define DK_KEY2     P2_12

#define DK_LED1     P3_25
#define DK_LED2     P3_26

#define LCD_SCK     P0_15
#define LCD_CS      P0_16
#define LCD_SDO     P0_17
#define LCD_SDI     P0_18
#define LCD_BL      P1_26

#define TP_IRQ      P2_13
#define TP_CS       P0_6
#define TP_SCK      P0_7
#define TP_SDO      P0_8
#define TP_SDI      P0_9

#define SD_SDO      P1_23
#define SD_SDI      P1_24
#define SD_SCK      P1_20
#define SD_CS       P1_21
#define SD_CD       P1_25

#define DISABLE_LCD_MISO    (LPC_PINCON->PINSEL1) &= ~(0x02<<2);
#define ENABLE_LCD_MISO     (LPC_PINCON->PINSEL1) |=  (0x02<<2);