GPStracker/soft/UC1601S-I2C.c

#include "UC1601S-I2C.h"

void uc1601s_write_command(unsigned char cmd) {
	expander_set_bit_no_send(UC1601S_CS_PORT, UC1601S_CS, 0);
	expander_set_bit_no_send(UC1601S_CD_PORT, UC1601S_CD, 0);
	exp_output[0] = cmd;
	expander_write(0);
	expander_set_bit(UC1601S_WR_PORT, UC1601S_WR, 0);
	expander_set_bit(UC1601S_WR_PORT, UC1601S_WR, 1);
	expander_set_bit(UC1601S_CS_PORT, UC1601S_CS, 1);
}

void uc1601s_write_data(unsigned char data) {
	expander_set_bit_no_send(UC1601S_CS_PORT, UC1601S_CS, 0);
	expander_set_bit(UC1601S_CD_PORT, UC1601S_CD, 1);
	exp_output[0] = data;
	expander_write(0);
	expander_set_bit(UC1601S_WR_PORT, UC1601S_WR, 0);
	expander_set_bit(UC1601S_WR_PORT, UC1601S_WR, 1);
	expander_set_bit(UC1601S_CS_PORT, UC1601S_CS, 1);
}

unsigned char uc1601s_read_data(void) {
	unsigned char out;
	UC1601S_DATA_INPUT();
	expander_set_bit_no_send(UC1601S_CS_PORT, UC1601S_CS, 0);
	expander_set_bit_no_send(UC1601S_CD_PORT, UC1601S_CD, 1);
	expander_set_bit(UC1601S_RD_PORT, UC1601S_RD, 0);
	out = expander_read_byte(0, 0);
	expander_set_bit_no_send(UC1601S_RD_PORT, UC1601S_RD, 1);
	expander_set_bit(UC1601S_CS_PORT, UC1601S_CS, 1);
	UC1601S_DATA_OUTPUT();
	return out;
}

#define UC1601S_INTERNAL_VLCD	0x6

void LCD_Initialize(void) {
	expander_set_bit(UC1601S_RST_PORT, UC1601S_RST, 1);
	_delay_ms(5);
	expander_set_bit_no_send(UC1601S_RD_PORT, UC1601S_RD, 1);
	expander_set_bit(UC1601S_WR_PORT, UC1601S_WR, 1);
	UC1601S_DATA_OUTPUT();
//	uc1601s_system_reset();
	uc1601s_set_lcd_bias_ratio(UC1601S_BIAS_RATIO_8);
	uc1601s_set_vbias(0xee);
	uc1601s_set_display_enable(1);
	uc1601s_set_power_control(UC1601S_INTERNAL_VLCD);
	uc1601s_set_all_pixel_on(1);
	_delay_ms(2);
}