Part Number:MSP430F5529
Tool/software: Code Composer Studio
Hi,
I would like to use LPM3 with port1/2 interrupts in MSP430F5529 LP together with 1120-1190 Booster pack using Sigfox library demo. I want MCU to go to lpm3 and only wake up with button Launchpad P1.1 and P2.1 interrupts and send Sigfox frames using library functions.
I have imported the project I received from Sigfox for the LP and tried the AT_command & button press polling demos, they are working properly. I can send sigfox frames.
But I would like to use interrupts in my project as I described above, when I switched the button press demo to use interrupts instead of polling (this switch is provided in code) there are some problems. I asked this question to Sigfox support first and they directed me to ask TI.
Here is a summary of the problem:
1) To use interrupts in SIGFOX_DEMO_button_press, "#define BSP_KEY_NO_ISR" statement in bsp_key.c needs to be removed and bspKeyInit function in sigfox_demo.c/SIGFOX_DEMO_init_mcufunction needs to be called with 'BSP_KEY_MODE_ISR' argument. I did these changes, but the project did not compile since "io_pin_int.h" header file included in bsp_key.c is missing from the project.
2) I found the
CC1120 Easylink source code from the TI website which includes all bsp and io_pin_int files. I have added io_pin_int.h and io_pin_int.c files to the project. (please see screenshot below for the directory structure of the project)..This time project went pass the compile phase but failed in linking saying PORT1_VECTOR and PORT2_VECTOR interrupt vectors are already defined in TI_SIGFOX_Lib_FCC.lib and redefined in io_pin_int.c:
<Linking>
error #10056: symbol "__TI_int47" redefined: first defined in "./bsp/io_pin_int.obj"; redefined in "../ti_sigfox_library/TI_SIGFOX_lib_FCC.lib<hal_digio2.obj>"
error #10056: symbol "__TI_int42" redefined: first defined in "./bsp/io_pin_int.obj"; redefined in "../ti_sigfox_library/TI_SIGFOX_lib_FCC.lib<hal_digio2.obj>"
error #10010: errors encountered during linking; "TI_SIGFOX_FCC_ccs_project.out" not built
Apparently PORT1 and PORT2 vectors are defined somewhere in the library. Since it is pre compiled I can't check or modify Sigfox library file. If I comment out PORT1 and PORT2 interrupt vectors from io_pin_int.c the project builds but custom interrupts registered don't work because there is no connection between the port interrupts in library and my custom interrupt functions registered in bsp_key.c.
I tried with both TI 4.4.8 and 16.9.0 LTS compilers but didn't make any difference.
I am wondering whether or not there is a way to register custom interrupt functions to the ISR defined in Sigfox library or any other solution.Is it possible to get some help and guidance in this problem?
Thanks a lot for help!!![]()
