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/**
*
* This file is a modified version of the HW_Teensy3.h created by Paul Stoffregen.
*
* Teensy 3.x pin definitions created by Dawnmist
* http://forum.pjrc.com/threads/18002-Teensy-3-0-driving-an-SSD1289-with-utft?p=34719&viewfull=1#post34719
*
* This file only supports the B and D ports as defined by Dawnmist for 8-bit and 16-bit display modules.
* Serial display modules are also supported.
*
* NOTE: This file has only been tested on a Teensy 3.1
*
**/
// *** Hardware specific functions ***
void UTFT::_hw_special_init()
{
}
void UTFT::LCD_Writ_Bus(char VH,char VL, byte mode)
{
switch (mode)
{
case 1:
if (display_serial_mode==SERIAL_4PIN)
{
if (VH==1)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
}
else
{
if (VH==1)
sbi(P_RS, B_RS);
else
cbi(P_RS, B_RS);
}
if (VL & 0x80)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x40)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x20)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x10)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x08)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x04)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x02)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
if (VL & 0x01)
sbi(P_SDA, B_SDA);
else
cbi(P_SDA, B_SDA);
pulse_low(P_SCL, B_SCL);
break;
case 8:
*(volatile uint8_t *)(&GPIOD_PDOR) = VH;
pulse_low(P_WR, B_WR);
*(volatile uint8_t *)(&GPIOD_PDOR) = VL;
pulse_low(P_WR, B_WR);
break;
case 16:
*(volatile uint8_t *)(&GPIOD_PDOR) = VH;
GPIOB_PCOR = 0x000F000F; // clear data lines B0-3,B16-19
GPIOB_PSOR = (0x0F & VL) | ((VL >> 4) << 16); // set data lines 0-3,16-19 if set in cl
pulse_low(P_WR, B_WR);
break;
}
}
void UTFT::_set_direction_registers(byte mode)
{
GPIOD_PDDR |= 0xFF;
PORTD_PCR0 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR1 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR2 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR3 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR4 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR5 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR6 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTD_PCR7 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
if (mode == 16)
{
GPIOB_PDDR |= 0x000F000F;
PORTB_PCR0 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR1 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR2 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR3 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR16 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR17 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR18 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
PORTB_PCR19 = PORT_PCR_SRE | PORT_PCR_DSE | PORT_PCR_MUX(1);
}
}
void UTFT::_fast_fill_16(int ch, int cl, long pix)
{
long blocks;
*(volatile uint8_t *)(&GPIOD_PDOR) = ch;
GPIOB_PCOR = 0x000F000F; // clear data lines B0-3,B16-19
GPIOB_PSOR = (0x0F & cl) | ((cl >> 4) << 16); // set data lines 0-3,16-19 if set in cl
blocks = pix/16;
for (int i=0; i<blocks; i++)
{
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);
}
if ((pix % 16) != 0)
for (int i=0; i<(pix % 16); i++)
{
pulse_low(P_WR, B_WR);
}
}
void UTFT::_fast_fill_8(int ch, long pix)
{
long blocks;
*(volatile uint8_t *)(&GPIOD_PDOR) = ch;
blocks = pix/16;
for (int i=0; i<blocks; i++)
{
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
}
if ((pix % 16) != 0)
for (int i=0; i<(pix % 16); i++)
{
pulse_low(P_WR, B_WR);pulse_low(P_WR, B_WR);
}
}
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