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Use DSPI SDK driver API's in SPI HAL driver #4812

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Merged
theotherjimmy merged 1 commit into from
Aug 14, 2017
Merged

Use DSPI SDK driver API's in SPI HAL driver #4812

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18 changes: 11 additions & 7 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/spi_api.c
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Original file line number Diff line number Diff line change
Expand Up @@ -131,13 +131,17 @@ int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length,
char *rx_buffer, int rx_length, char write_fill) {
int total = (tx_length > rx_length) ? tx_length : rx_length;

for (int i = 0; i < total; i++) {
char out = (i < tx_length) ? tx_buffer[i] : write_fill;
char in = spi_master_write(obj, out);
if (i < rx_length) {
rx_buffer[i] = in;
}
}
// Default write is done in each and every call, in future can create HAL API instead
DSPI_SetDummyData(spi_address[obj->spi.instance], write_fill);

DSPI_MasterTransferBlocking(spi_address[obj->spi.instance], &(dspi_transfer_t){
.txData = (uint8_t *)tx_buffer,
.rxData = (uint8_t *)rx_buffer,
.dataSize = total,
.configFlags = kDSPI_MasterCtar0 | kDSPI_MasterPcs0 | kDSPI_MasterPcsContinuous,
});

DSPI_ClearStatusFlags(spi_address[obj->spi.instance], kDSPI_RxFifoDrainRequestFlag | kDSPI_EndOfQueueFlag);

return total;
}
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