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Analogout: add defined behavior

pull/11032/head
Przemyslaw Stekiel 2019-10-22 13:27:15 +02:00
parent 2929895fb1
commit 85a2cb27a3
1 changed files with 23 additions and 0 deletions
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23
hal/analogout_api.h
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@ -35,9 +35,32 @@ typedef struct dac_s dac_t;
/** /**
* \defgroup hal_analogout Analogout hal functions * \defgroup hal_analogout Analogout hal functions
*
* # Defined behaviour
* * The function ::analogout_init initializes the analogin peripheral
* * The function ::analogout_write sets the output voltage, specified as a percentage (float) in range [0.0, 1.0]
* * The function ::analogout_write_u16 sets the output voltage, specified as unsigned 16-bit value
* * The function ::analogout_read reads the current voltage value on the pin and returns a floating-point value representing the current voltage in range [0.0, 1.0]
* * The function ::analogout_read_u16 reads the current voltage value on the pin and returns the output voltage, specified as unsigned 16-bit value
* * The function ::analogout_free releases the analogout object
*
* # Undefined behaviour
*
* * ::analogout_init is called with invalid pin (which does not support analog output function)
* * Calling other functions before ::analogout_init
* @{ * @{
*/ */
/**
* \defgroup hal_analogin_tests Analogout hal tests
* The Analogout HAL tests ensure driver conformance to defined behaviour.
*
* To run the Analogout hal tests use the command:
*
* mbed test -t <toolchain> -m <target> -n tests-mbed_hal_fpga_ci_test_shield-analogout
*
*/
/** Initialize the analogout peripheral /** Initialize the analogout peripheral
* *
* Configures the pin used by analogout. * Configures the pin used by analogout.