13.2.2.5 dac_os_write

The DAC convert digital data to analog output.

int32_t dac_os_write(
    struct dac_os_descriptor *const descr,
    const uint8_t ch,
    uint16_t * buffer,
    uint32_t length
)

It blocks the task/thread until the conversation is done. The buffer sample should be 16-bit wide. 8-bit data will not be supported. You must convert to 16-bit if there are 8-bit samples.

Parameters

descr

Type: struct dac_os_descriptor Struct *const

Pointer to the HAL DAC descriptor

ch

Type: const uint8_t

The channel selected to output

buffer

Type: uint16_t *

Pointer to digital data or buffer

length

Type: uint32_t

The number of elements in buffer

Returns

Type: int32_t

Operation status.

<0

Error code

length

Convert success