Header file for STM32 TDM-DMA Data Capture Wrapper file. More...

#include <stdint.h>
#include <stdbool.h>
#include "no_os_circular_buffer.h"
#include "iio_types.h"
#include "no_os_tdm.h"

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Functions
int32_t	start_tdm_dma_to_cb_transfer (struct no_os_tdm_desc tdm_desc, struct iio_device_data iio_dev_data, uint32_t buffer_size, uint8_t bytes_per_sample, uint32_t n_samples_tdm_read)
	Read TDM DMA Data into the buffer. More...

void	update_dma_buffer_overflow (void)
	Update the TDM DMA buffer overflow flag. More...

int32_t	end_tdm_dma_to_cb_transfer (struct no_os_tdm_desc tdm_desc, struct iio_device_data iio_dev_data, uint32_t buffer_size, uint8_t bytes_per_sample)
	Update circular buffer indices and prepare for next async write via DMA. More...

Variables
volatile bool	dma_buffer_full

uint8_t *	dma_buff

Detailed Description

Header file for STM32 TDM-DMA Data Capture Wrapper file.

This software is proprietary to Analog Devices, Inc. and its licensors. By using this software you agree to the terms of the associated Analog Devices Software License Agreement.

Function Documentation

◆ end_tdm_dma_to_cb_transfer()

int32_t end_tdm_dma_to_cb_transfer	(	struct no_os_tdm_desc *	tdm_desc,
		struct iio_device_data *	iio_dev_data,
		uint32_t	buffer_size,
		uint8_t	bytes_per_sample
	)

Update circular buffer indices and prepare for next async write via DMA.

Parameters

tdm_desc[in]	- TDM Descriptor
iio_dev_data[in]	- IIO Device data instance
buffer_size[in]	- Buffer Size
bytes_per_sample[in]	- Byte Per Sample

Returns: 0 in case of Success, negative error code otherwise

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◆ start_tdm_dma_to_cb_transfer()

int32_t start_tdm_dma_to_cb_transfer	(	struct no_os_tdm_desc *	tdm_desc,
		struct iio_device_data *	iio_dev_data,
		uint32_t	buffer_size,
		uint8_t	bytes_per_sample,
		uint32_t	n_samples_tdm_read
	)

Read TDM DMA Data into the buffer.

Parameters

tdm_desc[in]	- TDM descriptor
iio_dev_data[in]	- IIO device data instance
buffer_size[in]	- Buffer Size
bytes_per_sample[in]	- Byte Per Sample
n_samples_tdm_read[in]	- Number of samples to be read by TDM

Returns: 0 in case of success, negative error code otherwise

◆ update_dma_buffer_overflow()

void update_dma_buffer_overflow ( void )

Update the TDM DMA buffer overflow flag.

Returns: None

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Variable Documentation

◆ dma_buff

uint8_t* dma_buff

extern

◆ dma_buffer_full

volatile bool dma_buffer_full