Hello,
I am using the F28379S for a design project and have run into a strange issue. The device is powered correctly and programs via JTAG as expected. However, when I attempt to initialize the PLL clock using a 10MHz external oscillator, I encounter errors. This only happens when I attempt to set the clock higher than 37.5 MHz. The specific errors are below.
C28xx_CPU1: Error: (Error -1044 @ 0x0) The debug probe reported an error. Confirm debug probe configuration and connections, reset the debug probe, and retry the operation. (Emulation package 6.0.83.1)
C28xx_CPU1: Unable to determine target status after 20 attempts
C28xx_CPU1: Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging
This initialization (and any with lower PLL frequencies) works:
InitSysPll(XTAL_OSC,15,0,2); //clock = 37.5MHz
The following (and any with higher PLL frequencies) results in an error:
InitSysPll(XTAL_OSC,15,3,2);
The error occurs in the function after the enable:
ClkCfgRegs.SYSPLLCTL1.bit.PLLCLKEN = 1;
I am using a custom made board that I see no issues with. The board design is based off of a university breakout board for this processor, and I do not run into this issue (or any issues) on that board. I am starting to think the next thing to try may be replacing the F28379S chip for another in case it is an internal issue. Any insight into what could cause this problem?
Thanks!
Jeff
