• State Verified Answer
  • Replies 6 replies
  • Answers 1 answer
  • Subscribers 86 subscribers
  • Views 1790 views
  • Users 0 members are here
Attachments (1) Download All
Nordic Case Info
  • Case ID: 274496
Options
This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

secure_bootloader porting pca10056 to pca10056e

siva9999

hi,

im using nrf52811 customised board,for long range purpose im using softdevice s140

so i need to port secure boot loader pca10056 to  pca10056e

can you please me reagarding this.

best reagrds,

siva.

Parents
  • +1

    Hi

    I did the math, and yes, I'm sure. The nRF52811 has 192kB of available Flash memory. The S140 SoftDevice takes up ~150kB of Flash, the bootloader binary is 24kB, and it requires at least 4kB for the bootloader settings page at least. Bringing us up to 178kB for just the SoftDevice and bootloader. Our simplest BLE application (ble_app_beacon) needs 20kB, which brings us up to a total of 198kB minimum. I also assume you'd like your application to do more than just advertise as a beacon as well, so you will need a SoC with more memory to have the S140 SoftDevice, an application, and a secure bootloader.

    Best regards,

    Simon

Reply
  • +1

    Hi

    I did the math, and yes, I'm sure. The nRF52811 has 192kB of available Flash memory. The S140 SoftDevice takes up ~150kB of Flash, the bootloader binary is 24kB, and it requires at least 4kB for the bootloader settings page at least. Bringing us up to 178kB for just the SoftDevice and bootloader. Our simplest BLE application (ble_app_beacon) needs 20kB, which brings us up to a total of 198kB minimum. I also assume you'd like your application to do more than just advertise as a beacon as well, so you will need a SoC with more memory to have the S140 SoftDevice, an application, and a secure bootloader.

    Best regards,

    Simon

Children
Related
Terms of service