int8 in_read_charlieplex_inputs()
{
int8 switches;
output_drive(PI_CHARLIEPLEX_SWITCH_1_PIN);
switches = input_state(PI_CHARLIEPLEX_SWITCH_3_PIN);
switches <<= 1;
switches |= input_state(PI_CHARLIEPLEX_SWITCH_2_PIN);
output_high(PI_CHARLIEPLEX_SWITCH_1_PIN);
output_float(PI_CHARLIEPLEX_SWITCH_1_PIN);
output_low(PI_CHARLIEPLEX_SWITCH_1_PIN);
output_drive(PI_CHARLIEPLEX_SWITCH_2_PIN);
switches <<= 1;
switches |= input_state(PI_CHARLIEPLEX_SWITCH_3_PIN);
switches <<= 1;
switches |= input_state(PI_CHARLIEPLEX_SWITCH_1_PIN);
output_high(PI_CHARLIEPLEX_SWITCH_2_PIN);
output_float(PI_CHARLIEPLEX_SWITCH_2_PIN);
output_low(PI_CHARLIEPLEX_SWITCH_2_PIN);
//Note: In this block charliplex1 must be read before charliplex2
// just to charliplex2 has enough time to recover because charliplex2 was
// low in previous block. This avoid to put a delay here.
output_drive(PI_CHARLIEPLEX_SWITCH_3_PIN);
switches <<= 1;
switches |= input_state(PI_CHARLIEPLEX_SWITCH_1_PIN);
switches <<= 1;
switches |= input_state(PI_CHARLIEPLEX_SWITCH_2_PIN);
output_high(PI_CHARLIEPLEX_SWITCH_3_PIN);
output_float(PI_CHARLIEPLEX_SWITCH_3_PIN);
output_low(PI_CHARLIEPLEX_SWITCH_3_PIN);
return ~switches;
}
void lcd_init(void)
{
BYTE i;
#if defined(__PCB__)
set_tris_lcd(LCD_OUTPUT_MAP);
#else
#if (defined(LCD_DATA4) && defined(LCD_DATA5) && defined(LCD_DATA6) && defined(LCD_DATA7))
output_drive(LCD_DATA4);
output_drive(LCD_DATA5);
output_drive(LCD_DATA6);
output_drive(LCD_DATA7);
#else
lcdtris.data = 0x0;
#endif
lcd_enable_tris();
lcd_rs_tris();
lcd_rw_tris();
#endif
lcd_output_rs(0);
lcd_output_rw(0);
lcd_output_enable(0);
delay_ms(15);
for(i=1;i<=3;++i)
{
lcd_send_nibble(3);
delay_ms(5);
}
lcd_send_nibble(2);
for(i=0;i<=3;++i)
lcd_send_byte(0,LCD_INIT_STRING[i]);
}
void eaDogM_iniSPI_BB(void)
{
output_drive(EADOGM_SCLK_BB);
output_drive(EADOGM_MOSI_BB);
output_low(EADOGM_SCLK_BB);
output_low(EADOGM_MOSI_BB);
}
void eaDogM_ini8Bit(void)
{
#ifndef EADOGM_NOCSB
output_drive(EADOGM_PIN_CSB);
output_high(EADOGM_PIN_CSB);
#endif
output_drive(EADOGM_PIN_E);
output_drive(EADOGM_PIN_RW);
output_drive(EADOGM_PIN_RS);
output_low(EADOGM_PIN_E);
output_low(EADOGM_PIN_RS);
output_low(EADOGM_PIN_RW);
}
BYTE lcd_read_byte(void)
{
BYTE low,high;
#if defined(__PCB__)
set_tris_lcd(LCD_INPUT_MAP);
#else
#if (defined(LCD_DATA4) && defined(LCD_DATA5) && defined(LCD_DATA6) && defined(LCD_DATA7))
output_float(LCD_DATA4);
output_float(LCD_DATA5);
output_float(LCD_DATA6);
output_float(LCD_DATA7);
#else
lcdtris.data = 0xF;
#endif
#endif
lcd_output_rw(1);
delay_cycles(1);
lcd_output_enable(1);
delay_cycles(1);
high = lcd_read_nibble();
lcd_output_enable(0);
delay_cycles(1);
lcd_output_enable(1);
delay_us(1);
low = lcd_read_nibble();
lcd_output_enable(0);
#if defined(__PCB__)
set_tris_lcd(LCD_INPUT_MAP);
#else
#if (defined(LCD_DATA4) && defined(LCD_DATA5) && defined(LCD_DATA6) && defined(LCD_DATA7))
output_drive(LCD_DATA4);
output_drive(LCD_DATA5);
output_drive(LCD_DATA6);
output_drive(LCD_DATA7);
#else
lcdtris.data = 0x0;
#endif
#endif
return( (high<<4) | low);
}
void eaDogM_Initialize(void)
{
// v2.03 fix
#if EADOGM_SPI_HW == 1
setup_spi(SPI_MASTER | SPI_H_TO_L | EADOGM_SPI_DIV);
#endif
// v2.03 fix
#if EADOGM_SPI_HW == 2
setup_spi2(SPI_MASTER | SPI_H_TO_L | EADOGM_SPI_DIV);
#endif
#ifdef EADOGM_SPI_SW
eaDogM_iniSPI_BB();
#endif
#ifdef EADOGM_8BIT
eaDogM_ini8Bit();
#else
output_drive(EADOGM_PIN_CSB);
output_drive(EADOGM_PIN_RS);
output_high(EADOGM_PIN_CSB);
output_high(EADOGM_PIN_RS);
#endif
delay_ms(200);
eaDogM_WriteCommand(EADOGM_INIT_FS1);
eaDogM_WriteCommand(EADOGM_INIT_BIAS_SET);
eaDogM_WriteCommand(EADOGM_INIT_POWER_CONTROL);
eaDogM_WriteCommand(EADOGM_INIT_FOLLOWER_CONTROL);
eaDogM_WriteCommand(EADOGM_INIT_CONTRAST_SET);
eaDogM_WriteCommand(EADOGM_INIT_FS2);
eaDogM_WriteCommand(EADOGM_INIT_CLEAR_DISPLAY);
eaDogM_WriteCommand(EADOGM_INIT_ENTRY_MODE);
}
