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CCS/TMS320F28375S: Clock source for programming

Naveen Kumar reddy Nelavoy
Intellectual 500 points

Part Number: TMS320F28375S

Tool/software: Code Composer Studio

HI all.

          We are using Delfino 375s controller and we are facing problems with OSCCLK as controller is detecting missing clock even if the clock source is present. During this issue when we try to program the target, out of many attempts CCS shows a status that missing clock bit tis set and it needs to be cleared for PLL lock, after this the program is dumped into the target. So i have the following doubts on this issue


1. In PICCOLO 6x series even when the external oscillator is absent, we are able to dump the code and we thought that JTAG clk is suffient. Why is the same not happening with this 375s controller

2. In sysctrl.c, we did not use service dog in the infinite loop which gets executed until the pLL locks ( Watchdog not enabled ). Does the situation improve with using watchdog or there is another problem, please clarify

  • 0
    TI__Mastermind 28275 points

    Hi Naveen,

    By default, INTOSC2 is the clock after reset until your application code changes the clock source to something else. Are you saying you are unable to load code or you can load code but your clock setup code is indicating missing clock? If it's the latter, can you post the section of your code that configures the clock?