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SPI: Also check SPI_TRANS_USE_[T|R]XDATA when decifding to turn on MOSI/MISO. Fixes https://github.com/espressif/esp-idf/issues/488

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This commit is contained in:
Jeroen Domburg 2017-04-24 16:14:09 +08:00
parent 881a90b8ab
commit bf0c32364a
1 changed files with 2 additions and 2 deletions
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4
components/driver/spi_master.c
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@ -551,8 +551,8 @@ static void IRAM_ATTR spi_intr(void *arg)
} else {
host->hw->addr=trans->address & 0xffffffff;
}
host->hw->user.usr_mosi=(trans->tx_buffer==NULL)?0:1;
host->hw->user.usr_miso=(trans->rx_buffer==NULL)?0:1;
host->hw->user.usr_mosi=(trans->tx_buffer!=NULL || (trans->flags & SPI_TRANS_USE_TXDATA))?1:0;
host->hw->user.usr_miso=(trans->rx_buffer!=NULL || (trans->flags & SPI_TRANS_USE_RXDATA))?1:0;
//Call pre-transmission callback, if any
if (dev->cfg.pre_cb) dev->cfg.pre_cb(trans);