Article updated
at 28 Oct 2017
Attention: this is a legacy library and thus not supported by Toradex anymore. We recommend that you use the new libraries for all Toradex modules. Please see the Toradex CE Libraries and Code Samples for up-to-date information.
Library to support ADC interfacing. More...
#define
CODEC_UNKNOWN 0 #define
CODEC_UCB1400 1 #define
CODEC_WM9713 2 #define
CODEC_WM9715 3 #define
CODEC_SGTL5000 4 #define
ADC_VER_MAJ 2 Version Info.
More...#define
ADC_VER_MIN 3 #define
ADC_VER_BUILD 0
Library to support ADC interfacing.
- Copyright
- Copyright (c) 2012 Toradex AG
- Author
- samuel.bissig
- Rev
- 2688
- Date
- 2015-03-09 13:36:34 +0100 (Mo, 09 Mrz 2015)
- Target Platforms:
- PXAxxx, T20
Deinitializes the AC97 interface.
- Return values
-
| TRUE |
Success. |
| FALSE |
Error. |
Initializes the AC97 interface.
- Return values
-
| TRUE |
Success. |
| FALSE |
Error. |
| BOOL Ac97Read |
( |
UINT16 |
offset, |
|
|
UINT16 * |
pdata |
|
) |
|
|
Directly reads an AC97 register.
- Parameters
-
| [in] |
offset |
Register address. |
| [out] |
pdata |
16-bit value read from the register. |
- Return values
-
| TRUE |
Success. |
| FALSE |
Error. |
| BOOL Ac97Write |
( |
UINT16 |
offset, |
|
|
UINT16 |
data |
|
) |
|
|
Directly writes to an AC97 register
- Parameters
-
| [in] |
offset |
Register address. |
| [in] |
data |
16-bit value to write into the register. |
- Return values
-
| TRUE |
Success. |
| FALSE |
Error. |
| void ADCGetLibVersion |
( |
DWORD * |
pVerMaj, |
|
|
DWORD * |
pVerMin, |
|
|
DWORD * |
pBuild |
|
) |
|
|
Reads the library Version.
- Parameters
-
| [out] |
pVerMaj |
Major version number. |
| [out] |
pVerMin |
Minor version number. |
| [out] |
pBuild |
Build number. |
| DWORD getCodecType |
( |
void |
|
) |
|
Reads which codec is installed on the current Colibri module.
- Return values
-
| 0 |
Codec unknown. |
| 1 |
UCB1400. |
| 2 |
WM9713. |
| 3 |
WM9715. |
| 4 |
SGTL5000 |
| DWORD MicrovoltsPerLsb |
( |
BYTE |
channel |
) |
|
Gets Converstion constant Microvolts per LSB. This can be different for each ADC and even for each channel.
- Parameters
-
| [in] |
channel |
ADC channel number (0..3) |
- Return values
-
| (7500000/1024) |
Conversion constant Microvolts per ADC LSB. |
| (3300000*3/4096) |
Conversion constant Microvolts per ADC LSB. |
| (3300000 |
/4096) Conversion constant Microvolts per ADC LSB. |
| 0 |
Error. |
| BOOL ReadADCChannel |
( |
BYTE |
channel, |
|
|
DWORD * |
value, |
|
|
DWORD |
samples |
|
) |
|
|
Reads one ADC channel from Colibri's audio codec.
- Parameters
-
| [in] |
channel |
ADC channel number (0..3) |
| [in] |
samples |
number of samples that should be taken, they will be summed up |
| [out] |
value |
raw ADC value, if sampels>1, value is the SUM of all measurements. |
- Return values
-
| TRUE |
Success. |
| FALSE |
Error. |
| DWORD ReadTouch |
( |
BYTE |
mode, |
|
|
DWORD |
filter |
|
) |
|
|
Reads one value from the touch controller
- Parameters
-
| [in] |
mode |
X or Y axis measurement. |
| [in] |
samples |
Number of samples required. |
- Return values
-
| value |
Position value. |
| FALSE |
No access. |
| -1 |
Error. |
Remarks: Only the UCB1400 codec is currently supported.
