// Basic command interpreter for controlling port pins
int main(void)
{
char buf[32];
uint8_t n;
// set for 16 MHz clock, and turn on the LED
CPU_PRESCALE(0);
LED_CONFIG;
LED_ON;
// initialize the USB, and then wait for the host
// to set configuration. If the Teensy is powered
// without a PC connected to the USB port, this
// will wait forever.
usb_init();
while (!usb_configured()) /* wait */ ;
_delay_ms(1000);
while (1) {
// wait for the user to run their terminal emulator program
// which sets DTR to indicate it is ready to receive.
while (!(usb_serial_get_control() & USB_SERIAL_DTR)) /* wait */ ;
// discard anything that was received prior. Sometimes the
// operating system or other software will send a modem
// "AT command", which can still be buffered.
usb_serial_flush_input();
// print a nice welcome message
send_str(PSTR("\r\nTeensy USB Serial Example, "
"Simple Pin Control Shell\r\n\r\n"
"Example Commands\r\n"
" B0? Read Port B, pin 0\r\n"
" C2=0 Write Port C, pin 1 LOW\r\n"
" D6=1 Write Port D, pin 6 HIGH (D6 is LED pin)\r\n\r\n"));
// and then listen for commands and process them
while (1) {
usb_serial
send_str(PSTR("> "));
n = recv_str(buf, sizeof(buf));
if (n == 255) break;
send_str(PSTR("\r\n"));
parse_and_execute_command(buf, n);
}
}
}
// Basic command interpreter for controlling port pins
int main(void)
{
char buf[32];
uint8_t n;
// set for 16 MHz clock, and turn on the LED
CPU_PRESCALE(0);
LED_CONFIG;
LED_ON;
// initialize the USB, and then wait for the host
// to set configuration. If the Teensy is powered
// without a PC connected to the USB port, this
// will wait forever.
usb_init();
while (!usb_configured()) /* wait */ ;
_delay_ms(1000);
while (1) {
// wait for the user to run their terminal emulator program
// which sets DTR to indicate it is ready to receive.
while (!(usb_serial_get_control() & USB_SERIAL_DTR)) /* wait */ ;
// discard anything that was received prior. Sometimes the
// operating system or other software will send a modem
// "AT command", which can still be buffered.
usb_serial_flush_input();
// and then listen for commands and process them
while (1) {
n = recv_str(buf, sizeof(buf));
if (n == 255) break;
parse_and_execute_command(buf, n);
}
}
}
// Basic command interpreter for controlling port pins
int main(void)
{
char rx_buf[8];// the buffer to store received characters
uint8_t n = 0; // to store the number of bytes read from the serial port
uint8_t counter = 0; //keep count of the number of cycles in the while loop
// coordinates of the middle of the screen
int x=LCD_X/2;
int y=LCD_Y/2;
//set clock speed to 8MhZ
set_clock_speed(CPU_8MHz);
//initialise LCD and ports
Init();
// initialize the USB, and then wait for the host
// to set configuration. If the Teensy is powered
// without a PC connected to the USB port, this
// will wait forever.
usb_init();
while (!usb_configured()) /* wait */ ;
_delay_ms(1000);
//keep looping until the character 'q' is received
while (rx_buf[0]!='q') {
counter++;
// wait for the user to run their terminal emulator program
// which sets DTR to indicate it is ready to receive.
while (!(usb_serial_get_control() & USB_SERIAL_DTR)) /* wait */ ;
// discard anything that was received prior. Sometimes the
// operating system or other software will send a modem
// "AT command", which can still be buffered.
usb_serial_flush_input();
// and then listen for commands and process them
while (1) {
//send some characters to the other side
//send_str(PSTR("> \n"));
if (usb_serial_available())
n = recv_str(rx_buf, sizeof(rx_buf)); //read serial port
else
break;
parse_and_execute_command(rx_buf, n);
clear_screen();
draw_string(x-40,y,"receiving: ");
show_screen();
draw_char(x+20,y,rx_buf[0]);
show_screen();
}
}
return 0;
}
