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K20xx sleep.c update 

Utilised Header file mask defines.
Tested InterruptIn and timer WakeUp
pull/957/head
Paul Staron 2015-03-10 22:53:59 +00:00
parent ca5fe8afd7
commit 4196e0530d
1 changed files with 11 additions and 6 deletions
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17
libraries/mbed/targets/hal/TARGET_Freescale/TARGET_K20XX/sleep.c
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@ -48,16 +48,21 @@ void deepsleep(void)
while((MCG->S & MCG_S_LOCK0_MASK) == 0x00U); /* Wait until locked */
MCG->C1 &= ~MCG_C1_CLKS_MASK;
#else
MCG->C1 = (uint8_t)0x9Au;
MCG->C6 = (uint8_t)0x00u;
// MCG->C1: CLKS=2,FRDIV=3,IREFS=0,IRCLKEN=1,IREFSTEN=0
MCG->C1 = MCG_C1_CLKS(2) | MCG_C1_FRDIV(3) | MCG_C1_IRCLKEN_MASK;
// MCG->C6: LOLIE=0,PLLS=0,CME=0,VDIV0=0
MCG->C6 = MCG_C6_VDIV0(0);
while((MCG->S & MCG_S_OSCINIT0_MASK) == 0u) { } // Check that the oscillator is running
while((MCG->S & 0x0Cu) != 0x08u) { } // Wait until external reference clock is selected as MCG output
MCG->C5 = (uint8_t)0x05u;
MCG->C6 = (uint8_t)0x43u;
// MCG->C5: PLLCLKEN=0,PLLSTEN=0,PRDIV0=3
MCG->C5 = MCG_C5_PRDIV0(5);
// MCG->C6: LOLIE=0,PLLS=1,CME=0,VDIV0=3
MCG->C6 = MCG_C6_PLLS_MASK | MCG_C6_VDIV0(3);
while((MCG->S & 0x0Cu) != 0x08u) { } // Wait until external reference clock is selected as MCG output
while((MCG->S & MCG_S_PLLST_MASK) == 0u) { } // Wait until the source of the PLLS clock has switched to the PLL
while((MCG->S & MCG_S_LOCK0_MASK) == 0u) { } // Wait until locked
MCG->C1 = (uint8_t)0x22u;
while((MCG->S & MCG_S_LOCK0_MASK) == 0u) { } // Wait until locked
// MCG->C1: CLKS=0,FRDIV=2,IREFS=0,IRCLKEN=1,IREFSTEN=0
MCG->C1 = MCG_C1_FRDIV(2) | MCG_C1_IRCLKEN_MASK;;
while((MCG->S & 0x0Cu) != 0x0Cu) { } // Wait until output of the PLL is selected
while((MCG->S & MCG_S_LOCK0_MASK) == 0u) { } // Wait until locked
#endif