Part Number: TMS320F28388D
Other Parts Discussed in Thread: SYSCONFIG
I am bringing up a new board with a TMS320F28388D microcontroller part and when I load the example program to blink the LED (LED_ex1_blinky), the code hangs during the execution of InitSysCtrl(). Specificially, when it reaches the loop that checks the clock frequency:
if (!VerifyXTAL(25)) {
//
// The actual XTAL frequency does not match OSC_FREQ!!
// Please check the XTAL frequency used.
//
// By default, the InitSysCtrl function assumes 25MHz XTAL.
// If a 20MHz crystal is used, please add a predefined symbol
// "USE_20MHZ_XTAL" in your CCS project.
// If a different XTAL is used, please update the PLL configuration
// below accordingly.
//
// Note that the latest F2838x controlCARDs (Rev.B and later) have been
// updated to use 25MHz XTAL by default. If you have an older 20MHz XTAL
// controlCARD (E1, E2, or Rev.A), refer to the controlCARD
// documentation on steps to reconfigure the controlCARD from 20MHz to
// 25MHz.
//
__asm(" ESTOP0");
while (1)
;
}
I checked the clock (ASEGT-25.000MHz-GC ) and it is reading 25.0MHz +- 0.2MHz with a scope. The clock looks like a clean sine wave and has a minimum of -0.6V to +3.7V. Do you have any suggestions?
Thank you in advance for any assistance.
