u16 usart_recv_blocking(u32 usart)
{
usart_wait_recv_ready(usart);
return usart_recv(usart);
}
int main (void) {
clock_setup(); //setup the main clock for 168MHz
usart_setup(); //setup usart1 for debug messages
debug_send("\n\n\n*************************************\n");
debug_send("* Lynx test starting up *\n");
debug_send("* Waveforms *\n");
debug_send("* Joe Roberts *\n");
debug_send("* UROP - Summer 2013 *\n");
debug_send("*************************************\n\n\n");
debug_send("ledpins_setup()\n");
ledpins_setup(); //setup the status led's gpio's
debug_send("dac_setup()\n");
dac_setup(); //setup the dac gpio's
debug_send("transmit_timer_setup(1)\n");
transmit_timer_setup(1); //setup the transmit timer and its interrupt
debug_send("Starting the transmission timer\n");
timer_enable_counter(TIM2);
while(1) {
usart_wait_recv_ready(USART2);
timer_disable_counter(TIM2);
timer_set_counter(TIM2, 0);
char message = usart_recv_blocking(USART2);
debug_send("\nRecieved ");
usart_send_blocking(USART2, message);
bool done = false;
char param;
while(!done) {
debug_send(": Send your parameter [0-9]\n");
usart_wait_recv_ready(USART2);
param = usart_recv_blocking(USART2);
if((param>47)&&(param<58)) {
done = true;
param = param-48; //ASCII to number
}
else
debug_send("\nParameter must be [0-9] - try again\n");
}
if(message=='n')
n = 1000*param;
if(message=='t') {
transmit_timer_setup(10*param);
timer_enable_counter(TIM2);
}
if(message=='w')
set_waveform(param);
}
debug_send("We somehow escaped the for ever loop\n");
debug_send("..This is a little sad, there's not much you can do to fix this\n\n\n\n");
debug_send("goodbye, cruel world");
while(1);
return 1;
}
uint16_t usart_recv_blocking(uint32_t usart)
{
usart_wait_recv_ready(usart);
return usart_recv(usart);
}
