I've just got a SAM L11 Xplained Pro and try to run a simple program on it.
I've tried with the LED flasher example from Atmel Smart (following " Getting Started with the SAM L10/L11 Xplained Pro" document).
Everything was built fine without errors but I don't see any LED flashing on the board.
Am I missing something? (all jumpers are untouched, in the original locations)
I really appreciate any help. I'm a beginner here :).
Everything was built fine without errors but I don't see any LED flashing on the board.
The next step is
– Load the code into the SAM L10 Xplained Pro and start debugging: Debug > Start debugging and break or ALT+F5
Did that step work and there is then no LED blinking when you
– Run the code: Debug > Continue or F5
or?
/Lars
Yes. I did that. I even set a breakpoint and confirmed that the program runs on the device (hit the breakpoint in the loop over and over) but there's still no LED blinking. I suspect that I did something wrong with the I/O pins.
scdoubleu 
Yes. I did that. I even set a breakpoint and confirmed that the program runs on the device (hit the breakpoint in the loop over and over) but there's still no LED blinking. I suspect that I did something wrong with the I/O pins.
Make sure you're using the correct secure/non-secure register alias. The CPU starts up in secure mode, and if you've made no effort to switch to non-secure mode then you need to use PORT_SEC rather than PORT to twiddle GPIOs.
The same goes for EIC, EVSYS, NVMCTRL, PAC, and PORT_IOBUS.
Steve
(For some reasons I cant attach images)
Please see the following links for how the code and the board look like when I run the LED flashing example.
https://ibb.co/Yjx54tX
https://ibb.co/mvdCS97
I also tried with "Start without debugging" and got the same result.
tarron wrote:Yes. I did that. I even set a breakpoint and confirmed that the program runs on the device (hit the breakpoint in the loop over and over) but there's still no LED blinking. I suspect that I did something wrong with the I/O pins.
Make sure you're using the correct secure/non-secure register alias. The CPU starts up in secure mode, and if you've made no effort to switch to non-secure mode then you need to use PORT_SEC rather than PORT to twiddle GPIOs.
The same goes for EIC, EVSYS, NVMCTRL, PAC, and PORT_IOBUS.
Steve
Thank you for your reply. May I ask how to set these secure/non-secure register alias? I couldn't find it in the tutorial document.
awneil 
For some reasons I cant attach images
This: https://www.avrfreaks.net/forum/media-browser-you-are-not-authorized-access-page ?
But you should still be able to copy & paste images:
Were you able to solve this issue? I have exactly the same problem. I'm using the example code generated by atmel studio without any modifications. I see the Trust Zone Manager init doing the following so I presume the security settings are set up correctly
/* Setup Port Security Attribution of I/O Pins */ PORT_SEC->Group[0].NONSEC.reg = CONF_PORT_INIT_NONSEC0_VAL; /* Setup NVIC Interrupt Target Non-Secure state */ NVIC->ITNS[0] = CONF_NVIC_INIT_ITNS0_VAL; NVIC->ITNS[1] = CONF_NVIC_INIT_ITNS1_VAL;
[EDIT] The issue is indeed due to some security configuration. The LED works fine when programmed via MPLAB IDE using the Harmony library instead of ASF. Follow the instructions here - https://www.youtube.com/watch?v=...
