TASKING VX-toolset for ARM User Guide

Chapter 18. CPU Problem Bypasses andChecksARM publishes errata sheets for reporting both CPU core functional problems and deviations from theelectrical and timing specifications.For some of these functional problems in the CPU core itself, the TASKING VX-toolset for ARM compilerprovides workarounds. In fact these are software workarounds for hardware problems.This chapter lists a summary of functional problems which can be bypassed by the compiler toolset.Please refer to the ARM errata sheets for the CPU core you are using, to verify if you need to use one ofthese bypasses.To set a CPU bypass or check1. From the Project menu, select Properties forThe Properties dialog appears.2. In the left pane, expand C/C++ Build and select Processor.In the right pane the Processor page appears.3. From the Processor Selection list, select a processor.The CPU Problem Bypasses and Checks box shows the available workarounds/checks availablefor the selected processor.4. (Optional) Select Show all CPU problem bypasses and checks.5. Click Select All or select one or more individual options.Overview of the CPU problem bypasses and checksThe following table contains an overview of the silicon bug numbers you can provide to the compiler andassembler option --silicon-bug. WA means a workaround by the compiler, CK means a check by theassembler.Number Description602117LDRD with base in list may result in incorrectbase register when interrupted or faultedWorkaroundWACheck CPUCKCortex-M3 / Cortex-M3 withETM853