/*
 *  klb_config.c      configuration file for KLBasic AVR target
 *
 *  Building this file in AVRStudio4 or similar AVR GCC tool chain
 *  creates a .eep file for configuring a target KLBasic board.
 *  Use of this configuration EEPROM file requires using version
 *  0.8 or later of the KLBasic AVR code.
 *
 *  After compiling this program with AVRStudio4, transfer ONLY
 *  the klb_config.eep file to your target; do NOT transfer the
 *  .hex file, as this will overwrite your KLBasic executable.
 *
 *  After writing the .eep file to your target, reset your target.
 *  The target should reboot and use the values you enter below for
 *  F_CPU and console baud rate.
 */


#include  <avr/io.h>
#include  <avr/eeprom.h>


/*
 *  Modify the following #defines to reflect your target hardware.
 *  TARGET_FCPU should define the crystal frequency of your target,
 *  expressed in Hertz.  TARGET_BAUD should define the baud rate of
 *  the serial port connected to your user console (usually, the first
 *  UART in your MCU).
 */
#define  TARGET_FCPU			20000000		/* target crystal freq in hertz */
#define  TARGET_BAUD			57600			/* target console baud rate */


/*
 *  Macros for creating a table of NV system values in EEPROM.
 *
 *  These macros store a value in EEPROM as MSB first, which is the
 *  same format used by KLBasic's eep32() and eep16() functions.  This
 *  allows you to update the NV system values from within a KLB program
 *  and have the system behave properly on the next reboot.
 */
#define  NVSYSVALUE_16(w)  (((w>>8) & 0xff)), (w & 0xff)
#define  NVSYSVALUE_32(x)  NVSYSVALUE_16((x>>16)), NVSYSVALUE_16(x)



/*
 *  EEPROM table of NV system values.  This is an example of an EEPROM
 *  table that can be used to set up the target.
 *
 *  To be consistent with the way KLBasic writes multi-byte values to
 *  EEPROM, multi-byte data in this table must always be written MSB first!
 */
const unsigned char  eesysvalues[]  EEMEM =
{
	NVSYSVALUE_32(TARGET_FCPU),
	NVSYSVALUE_32(TARGET_BAUD),
	NVSYSVALUE_32((TARGET_FCPU + TARGET_BAUD))	// calc 32-bit checksum of all values saved
};



/*
 *  The following dummy function is not used.  It is only needed to allow
 *  the AVRStudio4 build to complete.
 *
 *  After building this project, you will need to move the *.eep file ONLY
 *  into your target device.  When you then reboot the target device, it
 *  will launch KLBasic using the target F_CPU and target baud rate you
 *  defined above.
 */

int  main(void)
{
 	return  0;
}