DA14585/586

How to change the RAM size to reduce power consumption in extended sleep mode

Contents

• 1. Introduction
  • 1.1. Overview
  • 1.2. RAM Mapping
  • 1.3. Memory Size
  • 1.4. RAM layout
• 2. Concept to achieve 32kB retention RAM
  • 2.1. Objective
• 3. Steps to achieve 32kB retention RAM
  • 3.1. Copy the patch table in the new address
  • 3.2. Change when the interrupts are enabled
  • 3.3. Rebase the Hardfault and NMI Logs
  • 3.4. Rebase 0x7FD0000 at 0x00 and enable interrupts
  • 3.5. Rebase the interrupt vectors
  • 3.6. Make all the blocks (1,2,3) unretainable
  • 3.7. Create New Scatter file
• 4. Concept to achieve 48kB retention RAM
  • 4.1. Objective
• 5. Steps to achieve 48kB retention RAM
  • 5.1. Copy the patch table in the new address
  • 5.2. Change when the interrupts are enabled
  • 5.3. Rebase the Hardfault and NMI Logs
  • 5.4. Rebase 0x7FD0000 at 0x00 and enable interrupts
  • 5.5. Rebase the interrupt vectors
  • 5.6. Make all the blocks (1,2) unretainable
  • 5.7. Create New Scatter file
• 6. Extended Sleep mode consumption
• 7. Optimization
• 8. Conclusions
• 9. Term and definition
• 10. Revision history
• 11. Status definitions
• 12. Disclaimer
• 13. RoHS Compliance