void *malloc( size_t xSize )
{
/* There should not be a heap defined, so trap any attempts to call
malloc. */
Interrupt_disableMaster();
for( ;; );
}
bool PCM_gotoLPM3InterruptSafe(void)
{
bool lpmHappenedCorrect;
/* Disabling master interrupts. In Cortex M, if an interrupt is enabled but
master interrupts are disabled and a WFI happens the WFI will
immediately exit. */
Interrupt_disableMaster();
lpmHappenedCorrect = PCM_gotoLPM3();
/* Enabling and Disabling Interrupts very quickly so that the
processor catches any pending interrupts */
Interrupt_enableMaster();
Interrupt_disableMaster();
return lpmHappenedCorrect;
}
//------------------------------------------------------------------------------
// Send colors to the strip and show them. Disables interrupts while processing.
void showStrip()
{
// __bic_SR_register(GIE); // disable interrupts
Interrupt_disableMaster();
// send RGB color for every LED
int i, j;
for (i = 0; i < NUM_LEDS; i++){
u_char rgb[4] = {leds[i].green, leds[i].red, leds[i].blue, leds[i].white}; // get RGB color for this LED
// send green, then red, then blue, then white
for (j = 0; j < 4; j++){
u_char mask = 0x80; // b1000000
// check each of the 8 bits
while(mask != 0){
while ((UCB1IFG&0x0002)==0x0000); // wait until empty to transmit
if (rgb[j] & mask)
{ // most significant bit first
// SPI_transmitData(EUSCI_B1_MODULE, HIGH_CODE);
UCB1TXBUF = HIGH_CODE; // send 1
}
else
{
// SPI_transmitData(EUSCI_B1_MODULE, LOW_CODE);
UCB1TXBUF = LOW_CODE; // send 0
}
mask >>= 1; // check next bit
}
}
}
// send RES code for at least 50 us
_delay_cycles(800);
// __bis_SR_register(GIE); // enable interrupts
Interrupt_enableMaster();
}
