Steve Underwood wrote:
The insight debugger also seems to hang at crystal startup
do // wait in loop until
crystal
is stable {
IFG1 &= ~OFIFG;
-> } while (IFG1 & OFIFG);
Why would you expect this to do anything but loop forever? The interrupt
says there is a problem. You do nothing to fix it.
the snipet above is from the tcpip example, according to the xtal doc of
the msp430 the code above do nothing because the flag is not set
immediatly after it as been cleared. You need to add a delay of approx
50 cyles at 1Mhz before polling the flag again.
see code below.
unsigned int i;
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
BCSCTL1 |= XTS; // ACLK = LFXT1 = HF XTAL
do
{
IFG1 &= ~OFIFG; // Clear OSCFault flag
for (i = 0xFF; i > 0; i--); // Time for flag to set
}
while ((IFG1 & OFIFG) == OFIFG); // OSCFault flag still set?
This code is the correct way to wait for OSC to be stabilized,
unfortunatly it hang in GDB. Any workaround?
--
Dominic Pageau
