usart_backup.c

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#include <avr32/io.h>
#include <sys/interrupts.h>
// #include <stdio.h>
#include "usart.h"
#include "../pio/pio.h"
#include "../debug/print_funcs.h"
#include "../inc/macro.h"
#include "../power_manager/pm.h"
#include "../running_lights/running_lights.h"

#include <avr32/intc.h>
#include <sys/interrupts.h>

extern void set_irq_handler(void*);

/* Interrupt handlers for USART */
__int_handler *usart_rxrdy()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
//  usart_write_char( usart, usart_getchar(usart) );
  print(usart, "RXRDY interrupt\n\r");
//  print_ulong(usart,pm_read_mclk() );
  return (void *) AVR32_RAR_SUP;
}

__int_handler *usart_txrdy()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
  print(usart, "TXRDY interrupt\n\r");
  return (void *) AVR32_RAR_SUP;
}

__int_handler *usart_rxbrk()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
  print(usart, "RXBRK interrupt\n\r");
  return (void *) AVR32_RAR_SUP;
}

__int_handler *usart_endrx()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
  print(usart, "ENDRX interrupt\n\r");
  return (void *) AVR32_RAR_SUP;
}

__int_handler *usart_endtx()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
  print(usart, "ENDTX interrupt\n\r");
  return (void *) AVR32_RAR_SUP;
}

__int_handler *usart_txbfe()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
  print(usart, "TXBUFE interrupt\n\r");
  return (void *) AVR32_RAR_SUP;
}

__int_handler *usart_rxbuff()
{
  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;
  print(usart, "RXBUFF interrupt\n\r");
  return (void *) AVR32_RAR_SUP;
}


int main( void )
{
  int cpu_hz = 20000000;
  struct usart_options_t opt;

  volatile avr32_usart_t * usart = (void *) AVR32_USART0_ADDRESS;

  avr32_piomap_t usart0_piomap = {                              \
    {AVR32_USART0_RXD_0_PIN, AVR32_USART0_RXD_0_FUNCTION},      \
    {AVR32_USART0_TXD_0_PIN, AVR32_USART0_TXD_0_FUNCTION},      \
    {AVR32_USART0_CLK_0_PIN, AVR32_USART0_CLK_0_FUNCTION},      \
    {AVR32_USART0_CTS_0_PIN, AVR32_USART0_CTS_0_FUNCTION},      \
    {AVR32_USART0_RTS_0_PIN, AVR32_USART0_RTS_0_FUNCTION}       \
  };

  /* Set 12 MHz clock */



  /* Set options for the USART */
  opt.baudrate = 19200;
  opt.charlength = 8;
  opt.paritytype = USART_NO_PARITY;
  opt.stopbits = USART_1_STOPBIT;
  opt.channelmode = USART_NORMAL_CHMODE;

  /* Initialize it in RS232 mode */
  usart_init_rs232(usart, &opt, cpu_hz);

  /* Setup pio for USART */
  pio_setup_port(usart0_piomap, 2);

  /* Setup interrupts */
  set_interrupts_base( (void *) AVR32_INTC_ADDRESS );
  init_interrupts();
  /* Add handlers here */
  register_interrupt( (__int_handler) (usart_rxrdy), AVR32_USART0_IRQ/32, AVR32_USART0_IRQ % 32, INT0);

  /* Enable usasrt interrupts here */
  usart->ier = 0x00FFffff;
  // (1<<INT_RXRDY) | (1<<INT_TXRDY) | (1<<INT_RXBRK) | (1<<INT_ENDRX) | (1<<INT_ENDTX) | (1<<INT_TXBUFE) | (1<<INT_RXBUFF);

  while(1);

  return 42;
}

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