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Starterware/STARTERWARE-DSPARM: possibly problematic functions

maneedos
Intellectual 525 points
Part Number: STARTERWARE-DSPARM

Tool/software: Starterware

hey everybody,

trying to set up the pwm module, i came to face the following problem:
starterware's functions: EHRPWMClockEnable, EHRPWMTimebaseClkConfig and EHRPWMLoadCMPA
seem to not be working properly.
in detail, after loading the executable to my beaglebone white, it works fine until reaching those
functions. I have used UARTprintf to display a simple message each time a function reaches it's end.
This happens successfully unless i use the aforementioned functions.
In that case the program never reaches the end of those functions.An example of what i mean:

UARTprintf("start test\n");

L3L4_clock_domain_open();
UARTprintf("reached this point1\n");                                                     

pwmss_clk_enable(1);
UARTprintf("reached this point2\n");                                                          

pwmss_tbclk_enable(1);
UARTprintf("reached this point3\n");

EHRPWMClockEnable(SOC_PWMSS1_REGS); 
UARTprintf("reached this point4\n");

In this example, the messages i get in the terminal are:
start test
reached this point1
reached this point2
reached this point3

and then it just "hangs" there...Same happens if i use the other mentioned functions.

Sorry if i haven't explained my problem clearly, please ask for any clarifications and please give me any ideas? Or  a direction on what should i do..

  • 0
    Intellectual 525 points

    Well, i think i found the error..so in case anyone wonders, the problem seems to be that i forgot to use some necessary functions before those mentioned in the previous post.

    In detail, i should also use L3L4_driver_init and pwmss_driver_init, otherwise some flags are not set appropriately and thus the program doesn't work..