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esp_dma_merge_aligned_rx_buffers() function
Merge aligned RX buffer array to origin buffer
Syntax
Implemented in ![]()
esp_dma_utils.c:123
Return value
- ESP_OK: Merge aligned buffer to origin buffer successfully - ESP_ERR_INVALID_ARG: Merge aligned buffer to origin buffer failed because of invalid argument
Notes
This function can be used in the ISR context.
Related Functions
Found 1 other functions taking a ![]()
dma_buffer_split_array_t
argument:
Function
Description
Split DMA RX buffer to cache aligned buffers brief sketch: cache alignment delimiter cache alignment delimiter │ │ Origin Buffer │ Origin Buffer │ │ │ │ │ │ ▼ ▼ ▼ │ ...---xxxxx|xxxxxxxxxxxxxxxxxxxxxxxxxxxxx|xxxxx----... │ │ │ │ │ │ ▼ │ │ │ |xxxxxxxxxxxxxxxxxxxxxxxxxxxxx| │ │ │ ▲ │ ▼ │ │ │ Aligned buffers └──► Head Body Tail ◄──────┘ │ │ ▼ ▼ |xxxxx......| |xxxxx......|