/*******************************************************************************
* Transfer 1 byte over the serial communication *
* Parameter: byte: byte to be sent *
* mode: OUT = transmit byte, IN = receive byte *
* Return: byte read while sending *
*******************************************************************************/
static unsigned char spi_tran_man (unsigned char byte, unsigned int mode) {
unsigned char val = 0;
int i;
if (mode == OUT) { DAT_MODE (OUT); }
else { DAT_MODE (IN); }
for (i = 7; i >= 0; i--) {
LCD_CLK(0);
delay(1);
if (mode == OUT) {
LCD_DAT((byte & (1 << i)) != 0);
}
else {
val |= (BUS_VAL() << i);
}
LCD_CLK(1);
delay(1);
}
return (val);
}
void LCD_enviar_msg(char *msg) {
while(*msg) LCD_DAT(*msg++);
}
void LCD_enviar_msg(unsigned char *msg) {
while(*msg) LCD_DAT(*msg++);
}
void LcdDat(u8 cmd) {
LCD_DAT();
LCD_CS_L();
spi_xfer(SPI1, cmd);
LCD_CS_H();
}