// This function allows the program to pass an RX or TX mode flag for switching between modes on the
// half duplex UART serial communication line.
void commToggle(int mode)
{
if(mode == RX_MODE)
{
// Stop from transmitting any more.
TRANSMIT_Stop();
// Write a constant high to the data bus. This in combination with disconnecting the pin
// from the global bus is to avoid a false start bit (a zero) when we unload the configuration.
PRT0DR |= 0b10000000;
// Disconnect P07 from the global bus.
PRT0GS &= 0b01111111;
// Unload the transmitter configuration.
UnloadConfig_transmitter_config();
// Load the receiver configuration.
LoadConfig_receiver_config();
// Reconnect to the global bus.
PRT0GS |= 0b10000000;
// If this module is configured, allow modules past this to listen on P27.
// Otherwise, we make sure they're deaf.
if((configured) && (!MASTER))
{
// Turn on relay-like object
// Make sure the timer is off, although a config reload should have it off by default.
Timer8_1_Stop();
}
else if((!configured) && (!MASTER))
{
// Turn off relay-like object.
// Start response timeout timer and enable its interrupt routine.
Timer8_1_EnableInt();
Timer8_1_Start();
}
// Start the receiver.
RECEIVE_Start(RECEIVE_PARITY_NONE);
}
else if(mode == TX_MODE)
{
// Stop receiving information.
RECEIVE_Stop();
// Disconnect from the global bus.
PRT0GS &= 0b01111111;
// Unload the receiver configuration.
UnloadConfig_receiver_config();
// Load the transmitter configuration.
LoadConfig_transmitter_config();
// Reconnect to the global bus.
PRT0GS |= 0b10000000;
// Start the transmitter.
TRANSMIT_Start(TRANSMIT_PARITY_NONE);
}
}
void init_timer(void){
Timer8_1_EnableInt();
Timer8_1_Start();
}
