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A class to communicate a USB dac (send:only 48kHz,16bit,2ch , receive:only 48kHz,16bit,1ch). Need "USBHost_AddIso" library.
Dependents: USBHostDac_Audio_in_out
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USBHostDac
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USBHostDac Class Reference
A class to communicate a USB dac (send:only 48kHz,16bit,2ch , receive:only 48kHz,16bit,1ch) More...
#include <USBHostDac.h>
Public Member Functions | |
| USBHostDac () | |
| Constructor. | |
| virtual | ~USBHostDac () |
| Destructor. | |
| bool | connect () |
| Try to connect a audio device. | |
| bool | connected () |
| Check if a audio is connected. | |
| uint32_t | send (uint8_t *buf, uint32_t len, bool flush=true) |
| Data send : only 48kHz,16bit,2ch. | |
| uint32_t | receive (uint8_t *buf, uint32_t len) |
| Data receive : only 48kHz,16bit,1ch. | |
Detailed Description
A class to communicate a USB dac (send:only 48kHz,16bit,2ch , receive:only 48kHz,16bit,1ch)
Definition at line 38 of file USBHostDac.h.
Constructor & Destructor Documentation
| USBHostDac | ( | ) |
Constructor.
Definition at line 32 of file USBHostDac.cpp.
| ~USBHostDac | ( | ) | [virtual] |
Destructor.
Definition at line 43 of file USBHostDac.cpp.
Member Function Documentation
| bool connect | ( | ) |
Try to connect a audio device.
- Returns:
- true if connection was successful
Definition at line 74 of file USBHostDac.cpp.
| bool connected | ( | ) |
Check if a audio is connected.
- Returns:
- true if a audio is connected
Definition at line 70 of file USBHostDac.cpp.
| uint32_t receive | ( | uint8_t * | buf, |
| uint32_t | len | ||
| ) |
Data receive : only 48kHz,16bit,1ch.
- Parameters:
-
buf pointer on a buffer which will be read len length of the transfer
- Returns:
- the number of bytes read is returned
Definition at line 170 of file USBHostDac.cpp.
| uint32_t send | ( | uint8_t * | buf, |
| uint32_t | len, | ||
| bool | flush = true |
||
| ) |
Data send : only 48kHz,16bit,2ch.
It's sent by the 1536byte unit.
- Parameters:
-
buf pointer on a buffer which will be written len length of the transfer flush if true, less than 1536 bytes of data is sent
- Returns:
- the number of bytes written is returned
Definition at line 116 of file USBHostDac.cpp.
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