CPU_CTRL_XMC1: Overview

The CPU_CTRL_XMC1 APP is a system APP. The CPU_CTRL_XMC1 APP provides functionality to configure the behavior of the CPU:

• Debug interface
  
• Exceptions
  

Debug Interface:

The XMC1 series implement various debug interfaces:

• SWD (Serial Wire Debug)
  
• SPD (Single Pin Debug)
  

The APP allows reserving the pins needed for the selected interface.

Following pins used for SWD: SWDCLK and SWDIO.
SWD0 (P0.14, P0.15), SWD1 (P1.3, P1.2)

Following pins used for SPD: SPDIO
SPD0(P0.14) and SPD1(P1.3)

Exceptions:
Exceptions in XMC1 series trap illegal memory access and illegal program behavior. The following types of faults are available:

• HardFault: A HardFault is an exception that occurs because of an error during exception processing, or because an exception cannot be managed by any other exception mechanism. HardFaults have a fixed priority of -1, meaning they have higher priority than any exception with configurable priority.
  

The APP allows generating code to make easier debugging the cause of hard fault.

Boot pin modes:

• Only available in XMC1400
  
• Reserves the P4.6 and P4.7 pins
  

The figure below shows the APP structure in DAVE™. It uses the CMSIS library for configuring priority groups for interrupts used by the top level APPs.

Supported Devices

1. XMC1400 Series
2. XMC1300 Series
3. XMC1200 Series
4. XMC1100 Series

References

1. XMC1400 Reference Manual
2. XMC1300 Reference Manual
3. XMC1200 Reference Manual
4. XMC1100 Reference Manual