Example application demonstrating Memory stats API and debug functions
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/README.md Fri Oct 27 19:50:37 2017 +0000 @@ -0,0 +1,82 @@ +# mbed-os-example-platform-utils # + +Platform Utilities usage example for mbed OS + +This is a example showing how to use mbed-OS Debug and MemoryStats utility functions + +The program retrieves stack and heap usage and also demonstrates the usage of Debug APIs. + +### Suggested hardware for running this example ### + +* [K64F](https://os.mbed.com/platforms/FRDM-K64F/) + +## Getting started + +1. Import the example + + ``` + mbed import mbed-os-example-platform-utils + cd mbed-os-example-platform-utils + ``` +2. Compile and generate binary + + For example, for `ARMCC`: + + ``` + mbed compile -t arm -m k64f -DMBED_STACK_STATS_ENABLED -DMBED_HEAP_STATS_ENABLED -DMBED_MEM_TRACING_ENABLED + ``` + + NOTE: Make sure you define the following variables: + MBED_STACK_STATS_ENABLED + MBED_HEAP_STATS_ENABLED + MBED_MEM_TRACING_ENABLED + + 5. Open a serial console session with the target platform using the following parameters: + * **Baud rate:** 9600 + * **Data bits:** 8 + * **Stop bits:** 1 + * **Parity:** None + + 6. Copy or drag the application `mbed-os-example-platform-utils.bin` in the folder `mbed-os-example-platform-utils/BUILD/<TARGET NAME>/<PLATFORM NAME>` onto the target board. + + 7. The serial console should display a similar output to below: + ``` +This message is from debug function +This message is from debug_if +MemoryStats: + Bytes allocated currently: 80 + Max bytes allocated at a given time: 80 + Cumulative sum of bytes ever allocated: 80 + Current number of bytes allocated for the heap: 186884 + Current number of allocations: 2 + Number of failed allocations: 0 +Cumulative Stack Info: + Maximum number of bytes used on the stack: 560 + Current number of bytes allocated for the stack: 5376 + Number of stacks stats accumulated in the structure: 3 +Thread Stack Info: + Thread: 0 + Thread Id: 0x20001EE8 + Thread Name: "main_thread" + Maximum number of bytes used on the stack: 384 + Current number of bytes allocated for the stack: 4096 + Number of stacks stats accumulated in the structure: 1 + Thread: 1 + Thread Id: 0x20000394 + Thread Name: "" + Maximum number of bytes used on the stack: 64 + Current number of bytes allocated for the stack: 512 + Number of stacks stats accumulated in the structure: 1 + Thread: 2 + Thread Id: 0x200003DC + Thread Name: "" + Maximum number of bytes used on the stack: 112 + Current number of bytes allocated for the stack: 768 + Number of stacks stats accumulated in the structure: 1 +Done... + + ``` + +## Documentation ## + +More information on the MemoryStats and Debug API can be found in the [mbed handbook]().