void f3d_lcd_init(void) {
const struct lcd_cmdBuf *cmd;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
f3d_lcd_sd_interface_init(); // Setup SPI2 Link and configure GPIO pins
LCD_BKL_ON(); // Enable Backlight
// Make sure that the chip select and reset lines are deasserted
LCD_CS_DEASSERT(); // Deassert Chip Select
LCD_RESET_DEASSERT();
delay(100);
LCD_RESET_ASSERT();
delay(100);
LCD_RESET_DEASSERT();
delay(100);
// Write initialization sequence to the lcd
for (cmd=initializers; cmd->command; cmd++) {
LcdWrite(LCD_C,&(cmd->command),1);
if (cmd->len)
LcdWrite(LCD_D,cmd->data,cmd->len);
if (cmd->delay) {
delay(cmd->delay);
}
}
}
void ClearLcd(void)
{
EnableSmClkUser(LCD_USER);
LCD_CS_ASSERT();
LCD_SPI_UCBxTXBUF = LCD_CLEAR_CMD;
while (!(LCD_SPI_UCBxIFG & UCTXIFG));
LCD_SPI_UCBxTXBUF = 0x00;
while (!(LCD_SPI_UCBxIFG & UCTXIFG));
/* wait for shift to complete ( ~3 us ) */
while((LCD_SPI_UCBxSTAT & 0x01) != 0);
LCD_CS_DEASSERT();
DisableSmClkUser(LCD_USER);
}
static void Write(unsigned char Cmd, unsigned char *pBuffer, unsigned int Size)
{
EnableSmClkUser(LCD_USER);
LCD_CS_ASSERT();
#if LCD_DMA
LcdDmaBusy = 1;
/* send the lcd write command before starting the dma */
LCD_SPI_UCBxTXBUF = Cmd;
while (!(LCD_SPI_UCBxIFG&UCTXIFG));
/* USCIB0 TXIFG is the DMA trigger
* DMACTL1 controls dma2 and [dma3]
*/
DMACTL1 = DMA2TSEL_19;
__data16_write_addr((unsigned short) &DMA2SA, (unsigned long) pBuffer);
__data16_write_addr((unsigned short) &DMA2DA, (unsigned long) &LCD_SPI_UCBxTXBUF);
DMA2SZ = Size;
/*
* single transfer, increment source address, source byte and dest byte,
* level sensitive, enable interrupt, clear interrupt flag
*/
DMA2CTL = DMADT_0 + DMASRCINCR_3 + DMASBDB + DMALEVEL + DMAIE;
/* start the transfer */
DMA2CTL |= DMAEN;
while(LcdDmaBusy);
#else
/* send the lcd write command */
LCD_SPI_UCBxTXBUF = Cmd;
while (!(LCD_SPI_UCBxIFG&UCTXIFG));
for (unsigned int i = 0; i < Size; ++i)
{
LCD_SPI_UCBxTXBUF = pBuffer[i];
while (!(LCD_SPI_UCBxIFG&UCTXIFG));
}
#endif
/* add one more dummy byte at the end */
LCD_SPI_UCBxTXBUF = 0x00;
while (!(LCD_SPI_UCBxIFG&UCTXIFG));
/* wait for shift to complete ( ~3 us ) */
while((LCD_SPI_UCBxSTAT & 0x01) != 0);
LCD_SPI_UCBxTXBUF = LCD_STATIC_CMD;
while (!(LCD_SPI_UCBxIFG&UCTXIFG));
LCD_SPI_UCBxTXBUF = 0x00;
while (!(LCD_SPI_UCBxIFG&UCTXIFG));
/* now the chip select can be deasserted */
LCD_CS_DEASSERT();
DisableSmClkUser(LCD_USER);
}
