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Update MSP430X IAR port to ensure the power settings are correct for the clock speed.

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This commit is contained in:
Richard Barry 2012-04-01 17:54:07 +00:00
parent f16af5d27e
commit 3b4771e1a9
11 changed files with 433 additions and 17 deletions
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40
Demo/MSP430X_MSP430F5438_IAR/MSP-EXP430F5438_HAL/hal_board.c
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@ -66,3 +66,43 @@ void halBoardInit(void)
PJDIR = 0xFF;
P11SEL = 0;
}
/**********************************************************************//**
* @brief Set function for MCLK frequency.
*
*
* @return none
*************************************************************************/
void hal430SetSystemClock(unsigned long req_clock_rate, unsigned long ref_clock_rate)
{
/* Convert a Hz value to a KHz value, as required
* by the Init_FLL_Settle() function. */
unsigned long ulCPU_Clock_KHz = req_clock_rate / 1000UL;
//Make sure we aren't overclocking
if(ulCPU_Clock_KHz > 25000L)
{
ulCPU_Clock_KHz = 25000L;
}
//Set VCore to a level sufficient for the requested clock speed.
if(ulCPU_Clock_KHz <= 8000L)
{
SetVCore(PMMCOREV_0);
}
else if(ulCPU_Clock_KHz <= 12000L)
{
SetVCore(PMMCOREV_1);
}
else if(ulCPU_Clock_KHz <= 20000L)
{
SetVCore(PMMCOREV_2);
}
else
{
SetVCore(PMMCOREV_3);
}
//Set the DCO
Init_FLL_Settle( ( unsigned short )ulCPU_Clock_KHz, req_clock_rate / ref_clock_rate );
}