void display_init() {
// Setting up ports.
SYSCTL_RCGC2_R |= SYSCTL_DC4_GPIOB; // Enable GPIOB
//maybe delay2 here
delay2(10000);
SYSCTL_RCGC2_R |= SYSCTL_DC4_GPIOD; // Enable GPIOD
delay2(10000);
GPIO_PORTB_DIR_R |= 0x7f;
GPIO_PORTD_DIR_R |= 0xe0;
GPIO_PORTB_AFSEL_R &= 0xffffff80;
GPIO_PORTD_AFSEL_R &= 0xffffff1f;
GPIO_PORTB_DEN_R |= 0x7f; // Enable port B
GPIO_PORTD_DEN_R |= 0xe0; // Enable port D
// Function set commands separated by delay2s, as per cycle
//delay2(100);
//SysCtldelay2(5*SysCtlClockGet()/(3*1000)); //5msec
delay2(5000); //5msec
function_set(0, 0);
//SysCtldelay2(5*SysCtlClockGet()/(3*1000)); //5msec
//delay2(10);
delay2(5000); //5msec
function_set(0, 0);
//SysCtldelay2(2*SysCtlClockGet()/(3*10000)); //200usec
delay2(200); //200usec
//delay2(10);
function_set(0, 0);
function_set(1, 0); //two lines
display_off();
clear_display();
entry_mode_set(1,0);
}
int main(int argc, char **argv)
{
int check_busy = 0;
if (argc < 3)
usage();
//init spi oled
init_spi_oled(argv[1]);
argc-=2;
argv+=2;
while (argc >= 1) {
const char *cmd = argv[0];
int args = 0;
if (strcmp(cmd, "-B") == 0) {
check_busy = 0;
args = 1;
check_busy_flag3(atoi(argv[1]));
}
if (strcmp(cmd, "-b") == 0)
check_busy = 1;
if (check_busy)
check_busy_flag();
if (strcmp(cmd, "-f") == 0) {
select_font(atoi(argv[1]));
args = 1;
}
if (strcmp(cmd, "-e") == 0) {
entry_mode_set(atoi(argv[1]), atoi(argv[2]));
args = 2;
}
if (strcmp(cmd, "-m") == 0) {
display_mode(atoi(argv[1]), atoi(argv[2]), atoi(argv[3]));
args = 3;
}
if (strcmp(cmd, "-c") == 0)
clear_display();
if (strcmp(cmd, "-g") == 0) {
set_ddram_address(atoi(argv[1]) * 0x40 + atoi(argv[2]));
args = 2;
}
if (strcmp(cmd, "-a") == 0) {
set_ddram_address(strtoul(argv[1], NULL, 0));
args = 1;
}
if (strcmp(cmd, "-A") == 0) {
set_cgram_address(strtoul(argv[1], NULL, 0));
args = 1;
}
if (strcmp(cmd, "-w") == 0) {
write_data(strtoul(argv[1], NULL, 0));
args = 1;
}
if (strcmp(cmd, "-h") == 0)
return_home();
if (strcmp(cmd, "-C") == 0) {
shift_cursor(*argv[1] == 'r');
args = 1;
}
if (strcmp(cmd, "-S") == 0) {
shift_display(*argv[1] == 'r');
args = 1;
}
if (strcmp(cmd, "-t") == 0) {
write_str(argv[1]);
args = 1;
}
if (*cmd != '-')
write_str(cmd);
check_busy = 1;
argc -= 1 + args;
argv += 1 + args;
}
}
