uint8_t address_exchange(void)
{
uint8_t ch;
uint8_t id;
set_led_rgb(0, 0, 255);
id = eeprom_read_byte((uint8_t *)ee_pump_id_offset);
if (id == 0 || id == 255)
{
// we failed to get a unique number for the pump. just stop.
set_led_rgb(255, 0, 0);
for(;;);
}
for(;;)
{
for(;;)
{
if (serial_rx_nb(&ch))
break;
if (check_reset())
return 0xFF;
}
if (ch == 0xFF)
break;
if (ch == '?')
serial_tx(id);
}
set_led_rgb(0, 255, 0);
return id;
}
// return true is a command was read, false if a reset was requested
uint8_t receive_cmd(char *cmd)
{
uint8_t num = 0, ch;
dprintf(">");
*cmd = 0;
for(; !check_reset();)
{
for(;!check_reset() && !serial_rx_nb(&ch);)
idle();
if (check_reset())
return 0;
serial_tx(ch);
if (ch == '\r')
{
serial_tx('\n');
cmd[num] = 0;
return 1;
}
cmd[num] = ch;
num++;
}
return 0;
}
void comm_test(void)
{
uint8_t ch;
// disable all interrupts and just echo every character received.
cli();
set_led_rgb(0, 255, 255);
for(; !check_reset();)
if (serial_rx_nb(&ch))
for(; !serial_tx_nb(ch) && !check_reset();)
;
sei();
}
