mcufriend_mbed.h

00001 #ifndef MCUFRIEND_MBED_H_
00002 #define MCUFRIEND_MBED_H_
00003 
00004 #include <mbed.h>
00005 
00006 #if defined(USE_SERIAL)
00007 #include "mcufriend_keil_spi.h"
00008 #else
00009 
00010 BusOut digitalL(D0, D1, D2, D3, D4, D5, D6, D7);
00011 BusOut digitalH(D8, D9, D10, D11, D12, D13, NC, NC);
00012 BusOut analog(A0, A1, A2, A3, A4, A5, NC, NC);
00013 
00014 #include "pin_shield_1.h"     //shield pin macros e.g. A2_PORT, PIN_OUTPUT()
00015 #include "pin_shield_8.h"     //macros for write_8(), read_8(), setWriteDir(), ...
00016 
00017 // control pins as used in MCUFRIEND shields 
00018   #define RD_PORT A0_PORT
00019   #define RD_PIN  A0_PIN
00020   #define WR_PORT A1_PORT
00021   #define WR_PIN  A1_PIN
00022   #define CD_PORT A2_PORT
00023   #define CD_PIN  A2_PIN
00024   #define CS_PORT A3_PORT
00025   #define CS_PIN  A3_PIN
00026   #define RESET_PORT A4_PORT
00027   #define RESET_PIN  A4_PIN
00028 
00029 // general purpose pin macros
00030  #define RD_ACTIVE  PIN_LOW(RD_PORT, RD_PIN)
00031  #define RD_IDLE    PIN_HIGH(RD_PORT, RD_PIN)
00032  #define RD_OUTPUT  PIN_OUTPUT(RD_PORT, RD_PIN)
00033  #define WR_ACTIVE  PIN_LOW(WR_PORT, WR_PIN)
00034  #define WR_IDLE    PIN_HIGH(WR_PORT, WR_PIN)
00035  #define WR_OUTPUT  PIN_OUTPUT(WR_PORT, WR_PIN)
00036  #define CD_COMMAND PIN_LOW(CD_PORT, CD_PIN)
00037  #define CD_DATA    PIN_HIGH(CD_PORT, CD_PIN)
00038  #define CD_OUTPUT  PIN_OUTPUT(CD_PORT, CD_PIN)
00039  #define CS_ACTIVE  PIN_LOW(CS_PORT, CS_PIN)
00040  #define CS_IDLE    PIN_HIGH(CS_PORT, CS_PIN)
00041  #define CS_OUTPUT  PIN_OUTPUT(CS_PORT, CS_PIN)
00042  #define RESET_ACTIVE  PIN_LOW(RESET_PORT, RESET_PIN)
00043  #define RESET_IDLE    PIN_HIGH(RESET_PORT, RESET_PIN)
00044  #define RESET_OUTPUT  PIN_OUTPUT(RESET_PORT, RESET_PIN)
00045 
00046 #define WR_ACTIVE2  {WR_ACTIVE; WR_ACTIVE;}
00047 #define WR_ACTIVE4  {WR_ACTIVE2; WR_ACTIVE2;}
00048 #define WR_ACTIVE8  {WR_ACTIVE4; WR_ACTIVE4;}
00049 #define RD_ACTIVE2  {RD_ACTIVE; RD_ACTIVE;}
00050 #define RD_ACTIVE4  {RD_ACTIVE2; RD_ACTIVE2;}
00051 #define RD_ACTIVE8  {RD_ACTIVE4; RD_ACTIVE4;}
00052 #define RD_ACTIVE16 {RD_ACTIVE8; RD_ACTIVE8;}
00053 #define WR_IDLE2  {WR_IDLE; WR_IDLE;}
00054 #define WR_IDLE4  {WR_IDLE2; WR_IDLE2;}
00055 #define RD_IDLE2  {RD_IDLE; RD_IDLE;}
00056 #define RD_IDLE4  {RD_IDLE2; RD_IDLE2;}
00057 
00058 #if defined(__MK20DX128__) || defined(___MK20DX256__) // Teensy3.0 || 3.2 96MHz
00059 #define WRITE_DELAY { WR_ACTIVE2; }
00060 #define READ_DELAY  { RD_ACTIVE4; RD_ACTIVE; }
00061 #elif defined(__MK64FX512__) || defined(TARGET_M4) // Teensy3.5 120MHz thanks to PeteJohno
00062 #define WRITE_DELAY { WR_ACTIVE4; }
00063 #define READ_DELAY  { RD_ACTIVE8; }
00064 #elif defined(__MK66FX1M0__) || defined(TARGET_M4) // Teensy3.6 180MHz untested.   delays can possibly be reduced.
00065 #define WRITE_DELAY { WR_ACTIVE8; }
00066 #define READ_DELAY  { RD_ACTIVE8; RD_ACTIVE8; }
00067 #elif defined(TARGET_M7) // Nucleo-F767 216MHz untested.   delays can possibly be reduced.
00068 #define WRITE_DELAY { WR_ACTIVE8; WR_ACTIVE2; }
00069 #define IDLE_DELAY  { WR_IDLE2;WR_IDLE; }
00070 #define READ_DELAY  { RD_ACTIVE16; RD_ACTIVE16; RD_ACTIVE4; }
00071 #define READ_IDLE   { RD_IDLE2;RD_IDLE; }
00072 #else
00073 //#error unspecified delays
00074 //#define WRITE_DELAY { WR_ACTIVE2; }
00075 //#define READ_DELAY  { RD_ACTIVE4; RD_ACTIVE; }
00076 #define WRITE_DELAY 
00077 #define READ_DELAY  
00078 #endif
00079 
00080 #if !defined(IDLE_DELAY)
00081 #define IDLE_DELAY WR_IDLE
00082 #endif
00083 #if !defined(READ_IDLE)
00084 #define READ_IDLE RD_IDLE
00085 #endif
00086 
00087 // General macros.   IOCLR registers are 1 cycle when optimised.
00088 #define WR_STROBE { WR_ACTIVE; WR_IDLE; }         //PWLW=TWRL=50ns
00089 #define RD_STROBE RD_IDLE, RD_ACTIVE, RD_ACTIVE, RD_ACTIVE   //PWLR=TRDL=150ns
00090 #define write8(d) { write_8(d); WRITE_DELAY; WR_STROBE; IDLE_DELAY; } // STROBEs are defined later
00091 #define write16(x)    { uint8_t h = (x)>>8, l = x; write8(h); write8(l); }
00092 #define READ_8(dst) { RD_STROBE; READ_DELAY; dst = read_8(); READ_IDLE; } // read 250ns after RD_ACTIVE goes low
00093 #define READ_16(dst) { uint8_t hi; READ_8(hi); READ_8(dst); dst |= (hi << 8); }
00094 
00095 #define CTL_INIT()   { RD_OUTPUT; WR_OUTPUT; CD_OUTPUT; CS_OUTPUT; RESET_OUTPUT; }
00096 #define WriteCmd(x)  { CD_COMMAND; write16(x); CD_DATA; }
00097 #define WriteData(x) { write16(x); }
00098 
00099 #endif   //!USE_SERIAL
00100 #endif   //MCUFRIEND_KEIL_H_