alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-09-30 19:19:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

fix(spi_dma): fix the receive error with RX DMA start with non-aligned address.

Browse Source
This commit is contained in:
michael
2017-08-15 12:46:21 +08:00
parent bfb15c6fc9
commit a01db5569c
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
components/driver/spi_master.c
View File

@@ -603,7 +603,7 @@ esp_err_t spi_device_queue_trans(spi_device_handle_t handle, spi_transaction_t *
//if not use RXDATA neither rx_buffer, buffer_to_rcv assigned to NULL
trans_buf.buffer_to_rcv = trans_desc->rx_buffer;
}
if ( trans_buf.buffer_to_rcv && handle->host->dma_chan && !esp_ptr_dma_capable( trans_buf.buffer_to_rcv )) {
if ( trans_buf.buffer_to_rcv && handle->host->dma_chan && (!esp_ptr_dma_capable( trans_buf.buffer_to_rcv ) || ((int)trans_buf.buffer_to_rcv%4!=0)) ) {
//if rxbuf in the desc not DMA-capable, malloc a new one
trans_buf.buffer_to_rcv = heap_caps_malloc((trans_desc->rxlength+7)/8, MALLOC_CAP_DMA);
if ( trans_buf.buffer_to_rcv==NULL ) return ESP_ERR_NO_MEM;