AVR Freaks

Just click [Mark as Solution] on post #3

Kabasan, did you brick your chip with the fuse settings you specified in post #1?

EDIT: If you haven't compiled and written this to a chip yet, I strongly advise that you don't.  It will brick your chip!  See the next post for more details.

*EDIT:  I manually downloaded the 1.3.172 pack , installed and it appears to work fine. I thought i read the numbers correct and was up to date.

I am having the same compiler issue as the OP but with at Attiny1614 sister chip. Current pack is  1.3.147

 // Set fuses:
 FUSES =
 {
	 //.WDTCFG     = 0x00,
	 .BODCFG     = ACTIVE_ENABLED_gc | LVL_BODLEVEL2_gc,
	 .OSCCFG     = FREQSEL_16MHZ_gc,
	 //.TCD0CFG	= 0x00,
	 .SYSCFG0	= RSTPINCFG_UPDI_gc,
	 .SYSCFG1	= SUT_64MS_gc ,
	 //.APPEND     = 0x00,
	 //.BOOTEND	= 0x00,
 };

The main error you are seeing there is because of:

That is occurring because of avr\lib\ldscripts\avrxmega3.x which contains:

MEMORY
{
  text   (rx)   : ORIGIN = 0, LENGTH = __TEXT_REGION_LENGTH__
  data   (rw!x) : ORIGIN = 0x802000, LENGTH = __DATA_REGION_LENGTH__
  eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__
  fuse      (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
  lock      (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
  signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
  user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__
}

So I guess the question is where __FUSE_REGION_LENGTH__ is defined. The fact that it's a symbol name with two leading underscores suggests it is auto-generated by the complier/linker tools. Obviously what's supposed to happen is that it should match the sizeof() this:

typedef struct FUSE_struct
{
    register8_t WDTCFG;  /* Watchdog Configuration */
    register8_t BODCFG;  /* BOD Configuration */
    register8_t OSCCFG;  /* Oscillator Configuration */
    register8_t reserved_0x03;
    register8_t TCD0CFG;  /* TCD0 Configuration */
    register8_t SYSCFG0;  /* System Configuration 0 */
    register8_t SYSCFG1;  /* System Configuration 1 */
    register8_t APPEND;  /* Application Code Section End */
    register8_t BOOTEND;  /* Boot Section End */
} FUSE_t;

That is 9 bytes and the error says "overflow by 7 bytes" which suggests that __FUSE_REGION_LENGTH__ is defined as 2 rather than the 9 it should be.

The very old AVRs had just 2 fuse bytes (low / high) so I think someone somewhere has made a copy/paste error where they have used an old AVR definition as the template for defining this symbol for these new Xtiny models.

Clearly this looks like a bug in Atmel world so I'd raise a support ticket with Microchip so they are aware. It might be that Morten or Jan-Egil or someone will read about it here but you'll have more success if you raise a ticket so it goes into their Bugzilla/JIRA/whatever.

The short term fix will be to locally edit your copy of avrxmega3.x and change it to be:

MEMORY
{
  text   (rx)   : ORIGIN = 0, LENGTH = __TEXT_REGION_LENGTH__
  data   (rw!x) : ORIGIN = 0x802000, LENGTH = __DATA_REGION_LENGTH__
  eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__
  fuse      (rw!x) : ORIGIN = 0x820000, LENGTH = 9
  lock      (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
  signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
  user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__
}

EDIT: interesting dialog about this here:

https://lists.nongnu.org/archive...

So the feature was added by Senthil who is an engineer working for Atmel and it shows that it is binutils that is responsible for the symbol definition.