SAM4E flashing first program

[hsn93]

hello,

i've designed board for SAM4E16E.

a very bad move i did is that i did not connect any pin in the board to led (flashing leds is really helpful for debug) or didnt put jtag connector.

anyway, i only have Erase option on the board.
and its connected to USB.


so i've connected it to the PC and i can see (COM4 as "Bossa Program Port")


now im using Bossac which supports SAM4E. to upload simple program:


after flashing the firmware, and reset, i still see the "COM4" which means the bootloader is still there? shouldnt it exit to my software until i erase the chip? 

what i can think of, is that SAM-BA checks for the program and cant find it in the memory, but i didnt play with the flash.ld file
flash.ld: https://pastebin.com/raw/YRZuefCa


the code has infinite loop also:

Code: [Select]

#include <asf.h>

int main (void)
{
/* Insert system clock initialization code here (sysclk_init()). */

board_init();

/* Insert application code here, after the board has been initialized. */
while(1)
{

}
}


[hsn93]

the problem solved
there is boot from flash that you can set in SAM-BA i guess (somthing like fuses)..



boot to ROM bootloader from ASF code: (add flash_efc service)

Code: [Select]

flash_clear_gpnvm(1);
NVIC_SystemReset();