KE16Z Pit Timer works only for one second

attiliorossi321 — Thu, 03 Sep 2020 05:46:09 GMT

Hi guys

I post my code about pit timer on KE16Z. It work fine and properly but only for just one second about.

Later I can't reach the interrupt handle again.

Any suggestion for me ?

Thanks in advance

Attilio

void PIT_Init(void)
{
uint32_t reg = 0;

PCC->CLKCFG[PCC_LPIT0_INDEX] |= PCC_CLKCFG_CGC_MASK;
LPIT0->MCR |= LPIT_MCR_SW_RST_MASK;
LPIT0->MCR &= ~LPIT_MCR_SW_RST_MASK;

LPIT0->MCR = LPIT_MCR_DBG_EN(0) |
LPIT_MCR_DOZE_EN(0) |
LPIT_MCR_M_CEN_MASK;

LPIT0->MIER |= LPIT_MIER_TIE0_MASK;

reg = LPIT_TCTRL_MODE(0) |

LPIT_TCTRL_TRG_SRC(1) |

LPIT_TCTRL_TRG_SEL(0) |

LPIT_TCTRL_TROT(1) |

LPIT_TCTRL_T_EN_MASK;

LPIT0->CHANNEL[0].TCTRL = reg;

LPIT0->SETTEN |= LPIT_SETTEN_SET_T_EN_0_MASK;

LPIT0->CHANNEL[0].TVAL = 24000;

}

void LPIT0_Interrupt(void)
{
static bool b;

LPIT0->MSR |= LPIT_MSR_TIF0_MASK;

b = (b == false) ? true : false;
(b == true) ? Set_TestPin() : Res_TestPin();
}

Re: KE16Z Pit Timer works only for one second

nxf58904 — Thu, 03 Sep 2020 10:47:43 GMT

Hi，

I checked your code , you didn't enable an interrupt.

Add this "NVIC_EnableIRQ(LPIT0_IRQ);" to the PIT_Init() function.

Have a try .

Jianyu:

Have a great day,
TIC

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KE16Z Pit Timer works only for one second

Re: KE16Z Pit Timer works only for one second