/*********************************************************************//**
* @brief GPDMA interrupt handler sub-routine
* @param[in] None
* @return None
**********************************************************************/
void DMA_IRQHandler (void)
{
// check GPDMA interrupt on channel 0
if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 0)){ //check interrupt status on channel 0
// Check counter terminal status
if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 0)){
// Clear terminate counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, 0);
Channel0_TC++;
}
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 0)){
// Clear error counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, 0);
Channel0_Err++;
}
}
}
/*********************************************************************//**
* @brief GPDMA interrupt handler sub-routine
* @param[in] None
* @return None
**********************************************************************/
void DMA_IRQHandler (void)
{
uint32_t tmp;
// Scan interrupt pending
for (tmp = 0; tmp <= 7; tmp++) {
if (GPDMA_IntGetStatus(GPDMA_STAT_INT, tmp)){
// Check counter terminal status
if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, tmp)){
// Clear terminate counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, tmp);
switch (tmp){
case 0:
Channel0_TC++;
GPDMA_ChannelCmd(0, DISABLE);
break;
case 1:
Channel1_TC++;
GPDMA_ChannelCmd(1, DISABLE);
break;
default:
break;
}
}
// Check error terminal status
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, tmp)){
// Clear error counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, tmp);
switch (tmp){
case 0:
Channel0_Err++;
GPDMA_ChannelCmd(0, DISABLE);
break;
case 1:
Channel1_Err++;
GPDMA_ChannelCmd(1, DISABLE);
break;
default:
break;
}
}
}
}
}
void hw_spi_dma_counter (uint8_t channel) {
// Check counter terminal IR
if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, channel)) {
// Clear terminate counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, channel);
// This interrupt status should be hit for both tx and rx
uint8_t done_count = ((spi_async_status.txbuf != NULL) && (spi_async_status.rxbuf != NULL)) ? 2 : 1;
if (++spi_async_status.transferCount == done_count) {
// Trigger the callback
(*spi_async_status.callback)();
}
}
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, channel)) {
// Clear error counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, channel);
// Register the error in our struct
spi_async_status.transferError++;
// Trigger the callback because there was an error
(*spi_async_status.callback)();
}
}
//Interrupt that is triggered when the the DMA is finished
void DMA_IRQHandler(void) {
//Check which channel triggered the interrupt
//Transmit
if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 0) == SET) {
if (GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 0) == SET) {
//Clear interrupt flag
GPDMA_ClearIntPending(GPDMA_STATCLR_INTTC, 0);
//Set transit ready flag
txReady = 1;
//If both transmit and receive are finished
if (txReady && rxReady) {
//Clear flags
txReady = 0;
rxReady = 0;
//Restart DMA
initI2SDMA((uint32_t) txActive, (uint32_t) rxActive);
//Set flag for processing in main loop
needsProcessing = 1;
}
}
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 0) == SET) {
GPDMA_ClearIntPending(GPDMA_STATCLR_INTERR, 0);
}
}
//Receive
if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 1) == SET) {
if (GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 1) == SET) {
GPDMA_ClearIntPending(GPDMA_STATCLR_INTTC, 1);
//Set receive flag
rxReady = 1;
//If both transmit and receive are finished
if (txReady && rxReady) {
//Clear flags
txReady = 0;
rxReady = 0;
//Restart DMA
initI2SDMA((uint32_t) txActive, (uint32_t) rxActive);
//Set flag for processing in main loop
needsProcessing = 1;
}
}
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 1) == SET) {
GPDMA_ClearIntPending(GPDMA_STATCLR_INTERR, 1);
}
}
}
void DMA_IRQHandler (void){
// xprintf("DMA_IRQ");
// ticks_at_DMA_start = ticks;
// check GPDMA interrupt on channel 0
if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 0)){
// Check counter terminal status
if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 0)){
// Clear terminate counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, 0);
// ticks_after_DMA_finish = ticks;
TIM_Cmd(LPC_TIM1,ENABLE);
}
// Check error terminal status
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 0)){
// Clear error counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, 0);
}
}
#ifdef RxDMA
// check GPDMA interrupt on channel 1
if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 1)){
// Check counter terminal status
if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 1)){
// Clear terminate counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, 1);
Channel1_TC++;
// xprintf("ch1_TC:%d\n",Channel0_TC);
}
// Check error terminal status
if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 1)){
// Clear error counter Interrupt pending
GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, 1);
Channel1_Err++;
// xprintf("ch1_Err:%d\n",Channel0_Err);
}
}
xprintf("Rx:0x%x ",LED_PRECALC1[0][0]);
#endif
}