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Small RAM saving.

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Some code ported for the ersky9x board
Mavlink port commited
This commit is contained in:
bsongis
2012-03-21 18:31:00 +00:00
parent 45c685fab7
commit 2e5cf5a4f3
16 changed files with 16369 additions and 258 deletions
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src/lcd.cpp
+82 -1
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@@ -733,6 +733,86 @@ void lcdSetRefVolt(uint8_t val)
#endif
}
void refreshDisplay()
{
register Pio *pioptr;
register uint8_t *p = displayBuf;
register uint32_t y;
register uint32_t x;
register uint32_t z;
register uint32_t ebit;
#ifdef REVB
#else
register uint8_t *lookup;
lookup = (uint8_t *) Lcd_lookup;
#endif
ebit = LCD_E;
#ifdef REVB
pioptr = PIOA;
pioptr->PIO_PER = 0x00000080; // Enable bit 7 (LCD-A0)
pioptr->PIO_OER = 0x00000080;// Set bit 7 output
#endif
pioptr = PIOC;
#ifdef REVB
pioptr->PIO_OER = 0x0C0030FFL; // Set bits 27,26,15,13,12,7-0 output
#else
pioptr->PIO_OER = 0x0C00B0FFL; // Set bits 27,26,15,13,12,7-0 output
#endif
for (y = 0; y < 8; y++) {
lcdSendCtl(/*TODO g_eeGeneral.optrexDisplay ? 0 : */0x04);
lcdSendCtl(0x10); //column addr 0
lcdSendCtl(y | 0xB0); //page addr y
pioptr->PIO_CODR = LCD_CS1; // Select LCD
PIOA->PIO_SODR = LCD_A0; // Data
pioptr->PIO_CODR = LCD_RnW; // Write
#ifdef REVB
x = *p;
#else
x = lookup[*p];
#endif
for (z = 0; z < 128; z += 1) {
// The following 7 lines replaces by a lookup table
// x = __RBIT( *p++ ) ;
// x >>= 23 ;
// if ( x & 0x00000100 )
// {
// x |= 1 ;
// }
// pioptr->PIO_ODSR = x ;
pioptr->PIO_ODSR = x;
pioptr->PIO_SODR = ebit; // Start E pulse
// Need a delay here (250nS)
p += 1;
#ifdef REVB
x = *p;
#else
x = lookup[*p];
#endif
// TC0->TC_CHANNEL[0].TC_CCR = 5 ; // Enable clock and trigger it (may only need trigger)
// while ( TC0->TC_CHANNEL[0].TC_CV < 3 ) // Value depends on MCK/2 (used 6MHz)
// {
// // Wait
// }
pioptr->PIO_CODR = ebit; // End E pulse
}
pioptr->PIO_SODR = LCD_CS1; // Deselect LCD
}
#ifdef REVB
pioptr->PIO_ODR = 0x0000003AL; // Set bits 1, 3, 4, 5 input
pioptr->PIO_PUER = 0x0000003AL;// Set bits 1, 3, 4, 5 with pullups
#else
pioptr->PIO_ODR = 0x0000003CL; // Set bits 2, 3, 4, 5 input
pioptr->PIO_PUER = 0x0000003CL; // Set bits 2, 3, 4, 5 with pullups
#endif
pioptr->PIO_ODSR = 0 ; // Drive D0 low
}
#else
#define delay_1us() _delay_us(1)
@@ -789,7 +869,6 @@ void lcdSetRefVolt(uint8_t val)
lcdSendCtl(0x81);
lcdSendCtl(val);
}
#endif
void refreshDisplay()
{
@@ -818,3 +897,5 @@ void refreshDisplay()
}
#endif
}
#endif