TI CC2640 Bluetooth
®
low energy Software Developer’s Guide SWRU393A- July 2015
Copyright © 2010-2015 Texas Instruments, Inc.
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9 DEVELOPMENT AND DEBUGGING .................................................................................................... 93
9.1 DEBUG INTERFACES .............................................................................................................................. 93
9.1.1 Connecting to the XDS Debugger ................................................................................................. 93
9.2 BREAKPOINTS ........................................................................................................................................ 94
9.2.1 Breakpoints in CCS: ..................................................................................................................... 94
9.2.2 Breakpoints in IAR ........................................................................................................................ 95
9.2.3 Considerations when using breakpoints with an active BLE connection ..................................... 95
9.2.4 Considerations no breakpoints and compiler optimization .......................................................... 96
9.3 WATCHING VARIABLES AND REGISTERS ............................................................................................... 96
9.3.1 Variables in CCS .......................................................................................................................... 96
9.3.2 Variables in IAR ........................................................................................................................... 96
9.3.3 Considerations when Viewing Variables ...................................................................................... 97
9.4 MEMORY WATCHPOINTS ....................................................................................................................... 97
9.4.1 Watchpoints in CCS ...................................................................................................................... 97
9.4.2 Watchpoints in IAR ....................................................................................................................... 98
9.5 TI-RTOS OBJECT VIEWER .................................................................................................................... 98
9.5.1 Scanning the BIOS for Errors ....................................................................................................... 98
9.5.2 Viewing the State of Each Task ..................................................................................................... 99
9.5.3 Viewing the System Stack .............................................................................................................. 99
9.5.4 Viewing Power Manager Information .......................................................................................... 99
9.6 PROFILING THE ICALL HEAP MANAGER (HEAPMGR.H) ........................................................................ 100
9.7 OPTIMIZATIONS ................................................................................................................................... 100
9.7.1 Project-wide optimizations ......................................................................................................... 100
9.7.2 Single file optimizations .............................................................................................................. 101
9.7.3 Single function optimizations ...................................................................................................... 102
9.8 DECIPHERING CPU EXCEPTIONS ......................................................................................................... 102
9.8.1 Exception Cause ......................................................................................................................... 102
9.8.2 Using a Custom Exception Handler ........................................................................................... 103
9.8.3 Parsing the Exception Frame ..................................................................................................... 103
9.9 DEBUGGING A PROGRAM EXIT ............................................................................................................ 104
9.10 DEBUGGING MEMORY PROBLEMS ....................................................................................................... 104
9.10.1 Task / System Stack Overflow ..................................................................................................... 104
9.10.2 Dynamic Allocation Errors ......................................................................................................... 104
9.11 PREPROCESSOR OPTIONS ..................................................................................................................... 105
9.11.1 Modifying .................................................................................................................................... 105
9.11.2 Options ........................................................................................................................................ 105
9.12 CHECK SYSTEM FLASH/RAM USAGE WITH MAP FILE ......................................................................... 106
10 CREATING A CUSTOM BLE APPLICATION ............................................................................... 106
10.1 ADDING A BOARD FILE........................................................................................................................ 107
10.2 CONFIGURING PARAMETERS FOR CUSTOM HARDWARE ...................................................................... 107
10.3 CREATING ADDITIONAL TASKS ........................................................................................................... 107
10.4 CONFIGURING THE BLE STACK ........................................................................................................... 107
10.4.1 Minimizing Flash Usage ............................................................................................................. 107
10.5 DEFINE BLE BEHAVIOR ....................................................................................................................... 108
11 PORTING FROM CC254X TO CC2640 ........................................................................................... 108
11.1 INTRODUCTION .................................................................................................................................... 108
11.2 OSAL .................................................................................................................................................. 108
11.3 APPLICATION AND STACK SEPARATION WITH ICALL .......................................................................... 108
11.4 THREADS, SEMAPHORES & QUEUES .................................................................................................... 108
11.5 PERIPHERAL DRIVERS ......................................................................................................................... 109
11.6 EVENT PROCESSING ............................................................................................................................. 109
12 SAMPLE APPLICATIONS................................................................................................................. 110
12.1 BLOOD PRESSURE SENSOR .................................................................................................................. 110
12.1.1 User Interface ............................................................................................................................. 110
12.1.2 Basic Operation .......................................................................................................................... 110
12.2 HEART RATE SENSOR .......................................................................................................................... 111
12.2.1 User Interface ............................................................................................................................. 111
12.2.2 Basic Operation .......................................................................................................................... 111
12.3 CYCLING SPEED AND CADENCE (CSC) SENSOR .................................................................................. 111
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