Thank you so much.
The only part where I have a problem is this :
// Enable the port multiplexer on digital pin D12
PORT->Group[g_APinDescription[12].ulPort].PINCFG[g_APinDescription[12].ulPin].bit.PMUXEN = 1;
// Set-up the pin as an EIC (interrupt) peripheral on D12
PORT->Group[g_APinDescription[12].ulPort].PMUX[g_APinDescription[12].ulPin >> 1].reg |= PORT_PMUX_PMUXO_A;//attachInterrupt(12, NULL, HIGH); // Attach interrupts to digital pin 12 (external interrupt 3)
REG_EIC_EVCTRL |= EIC_EVCTRL_EXTINTEO3; // Enable event output on external interrupt 3
REG_EIC_CONFIG0 |= EIC_CONFIG_SENSE3_HIGH; // Set event detecting a HIGH level
REG_EIC_CTRL |= EIC_CTRL_ENABLE; // Enable EIC peripheral
while (EIC->STATUS.bit.SYNCBUSY); // Wait for synchronization
Why is it necessary to attach an external interrupt, cant it be done using internal interrupt ?
In simple words when the TC4 counts to its maximum count it displays the count and again starts over .