Selective Booting using an internal variable

Hi I am working with the ADSP-21489 and following the EE-345 application note. On the example in EE-345, case 1 approach 1, it does load a differnent application, but using the FLAG0 pin.

My question is, is there a way to boot different applications, depending on a value stored in an external E2PROM memory? Or bootloader restricted size will not allow me to do that and I will need to use a SSL?

Thanks in advance.

Parents
  • 0
    •  Analog Employees 
    on Aug 9, 2019 6:25 AM

    Hi Alenjandro,

    Regarding, "My question is, is there a way to boot different applications, depending on a value stored in an external E2PROM memory? Or boot loader restricted size will not allow me to do that and I will need to use a SSL?"

    >> Can you explain more in detail ? what kind of application are you using? are looking for Case 2 approach ?

    Please find the attachment. It contains Led_test and ADSP-21489 boot loader Projects. It follows EE-345 Case 2: " Using a Boot Kernel for a Second-Stage Loader approach ".
    boot loader will flashed in sector 0 and Led_test will flashed in sector 1. Whenever the reset occurs. it will load and run the code from sector 1.

    Regards,
    Lalitha S

    Bootloader.zip

Reply
  • 0
    •  Analog Employees 
    on Aug 9, 2019 6:25 AM

    Hi Alenjandro,

    Regarding, "My question is, is there a way to boot different applications, depending on a value stored in an external E2PROM memory? Or boot loader restricted size will not allow me to do that and I will need to use a SSL?"

    >> Can you explain more in detail ? what kind of application are you using? are looking for Case 2 approach ?

    Please find the attachment. It contains Led_test and ADSP-21489 boot loader Projects. It follows EE-345 Case 2: " Using a Boot Kernel for a Second-Stage Loader approach ".
    boot loader will flashed in sector 0 and Led_test will flashed in sector 1. Whenever the reset occurs. it will load and run the code from sector 1.

    Regards,
    Lalitha S

    Bootloader.zip

Children