Hi,
I'm prototyping a Stepper command.
To do this, I'm using the TWRK60 : K60N512VMD100
I created a simple bareboard project with Kds 2.0.0.
At this stage, I have an infinite loop which increment a counter i.
This work correctly!
Then I insert my own code to drive the FTM.
To do this, I want start to generate a pulse. Out = 1 when Timer CNT is between 1 to 100, when CNTIN = 0 and MOD = 0xFFFF
Then I'm using Combine Mode on FTM0 CH0/CH1 -> on FTM0_CH0 (PTC1 in Mux 4)
Bellow is the code I written to do this:
SIM->SCGC6 |= SIM_SCGC6_FTM0_MASK;
FTM0->MODE = FTM_MODE_WPDIS_MASK | FTM_MODE_INIT_MASK ;
FTM0->MODE |= FTM_MODE_FTMEN_MASK; /* FTMEN bit is write protected. Can be written only when WPDIS = 1 */
FTM0->SC = (uint32_t)0x00UL; /* Clear status and control register */
FTM0->CNTIN= (uint32_t)0x00UL; /* Clear counter initial register */
FTM0->CNT = (uint32_t)0x00UL; /* Reset counter register */
FTM0->CONTROLS[0].CnSC = (uint32_t)0x00UL; /* Clear channel status and control register */
FTM0->CONTROLS[1].CnSC = (uint32_t)0x00UL; /* Clear channel status and control register */
FTM0->MOD = 65535; /* Set up modulo register */
FTM0->CONTROLS[0].CnSC = FTM_CnSC_ELSB_MASK;
FTM0->CONTROLS[1].CnSC = 0; //FTM_CnSC_CHIE_MASK;
FTM0->CONTROLS[0].CnV= 1;
FTM0->CONTROLS[1].CnV = 100; //debug AG//2;
// PORTC->PCR[1]= PORT_PCR_MUX(4);
FTM0->OUTMASK |= FTM_OUTMASK_CH0OM_MASK; //debug AG | FTM_OUTMASK_CH1OM_MASK;
FTM0->COMBINE = FTM_COMBINE_COMBINE0_MASK;
FTM0->SC= (uint32_t)(FTM_SC_CLKS(1) | FTM_SC_PS(0));
for (;;) {
i++;
}
When I comment line 24, the code is executed and loop in the infinite loop with I++.
If I uncomment line 24, Code will loop in startup_MK60D10.S:
.size Default_Handler, . - Default_Handler
Than I can't observe my signal on Pin PTC1!
Do you see any problem in my FTM initialization?
