SAMD21 secure bootlader

Hi all, I'm using a SAMD21E17A and I'd like to know if I can create a secure bootloader with encrypted firmware? I wish I could encrypt my software (aes for example) and upload it on my board...
Problems using the UART of the SAMD21

I have a problem running the UART, the microcontroller I am using is the SAMD21G18A and this is the code: this is uart.h: #ifndef _uart_H_ #define _uart_H_ /* DEFINICIONES DEL UART */ #define...
Problems using the UART of the SAMD21

I have a problem running the UART, the microcontroller I am using is the SAMD21G18A and this is the code: this is uart.h: #ifndef _uart_H_ #define _uart_H_ /* DEFINICIONES DEL UART */ #define...
Problems using the UART module of the SAMD21

hello, good morning everyone! I'm having trouble getting the UART of the SAMD21G18A microcontroller to work. This is the configuration code of the SERCOM 5 module in UART mode: 1.This code is uart.h...
Recomendación para usar el SAMD21 en keil uVision

ok, Look I explain you what is my work, I was presented this IDE with the aim that the libraries that we build of the different peripherals (display, sensors, etc) we can use it in any other microcontroller...