cy_stc_csdadc_context_t Struct Reference

Description

The CSDADC context structure, which contains the internal driver data for the CSDADC MW.

The context structure should be allocated by the user and passed to all CSDADC MW functions.

Data Fields
cy_stc_csdadc_config_t	cfgCopy
	Configuration structure copy.
cy_stc_csdadc_result_t	adcResult [CY_CSDADC_MAX_CHAN_NUM]
	CSDADC result array.
cy_csdadc_callback_t	ptrEOCCallback
	Pointer to a user's End Of Conversion callback function. More...
uint32_t	chMask
	Active mask of channels to convert.
uint32_t	counter
	Counter for CSDADC operations: More...
volatile uint16_t	status
	Current CSDADC status: More...
uint16_t	codeMax
	Max CSDADC code value.
uint16_t	vMaxMv
	Max CSDADC input voltage in mV.
uint16_t	tFull
	Calibration data.
uint16_t	tVssa2Vref
	Calibration data.
uint16_t	tVdda2Vref
	Calibration data.
uint16_t	tRecover
	Calibration data.
uint16_t	vddaMv
	Measured Vdda voltage in mV.
uint16_t	vBusBMv
	Measured voltage of the analog muxbusB in mV.
uint16_t	vRefMv
	Vref value in mV.
uint8_t	vRefGain
	Vref gain.
uint8_t	activeCh
	ID of the channel is being converted: More...
uint8_t	snsClkDivider
	Divider of sense clock.
uint8_t	acqCycles
	Acquisition time in Sns cycles.
uint8_t	azCycles
	Auto-zero time in in Sns cycles.

Field Documentation

ptrEOCCallback

cy_csdadc_callback_t cy_stc_csdadc_context_t::ptrEOCCallback

Pointer to a user's End Of Conversion callback function.

Refer to Callback section

counter

uint32_t cy_stc_csdadc_context_t::counter

Counter for CSDADC operations:

• bit [0:26] - current enabled channels cycle number:
  • In the continuous mode, sets to 0 with the conversion start and increments with every enabled channel cycle
  • In the single shot mode, is equal to 0
• bits [27:31] - current channel number inside the current cycle

status

volatile uint16_t cy_stc_csdadc_context_t::status

Current CSDADC status:

• bit [0] - if set to 1, then CSDADC initialization is done
• bit [1] - 0 single shot mode, 1 continuous mode
• bit [2] - 0 CSDADC idle state, 1 CSDADC busy state
• bit [3] - 0 ADC_RESULT did not overflow, 1 ADC_RESULT overflow
• bit [4:7] - FSM status:
  • 0 - CY_CSDADC_STATUS_FSM_IDLE
  • 1 - CY_CSDADC_STATUS_CALIBPH1
  • 2 - CY_CSDADC_STATUS_CALIBPH2
  • 3 - CY_CSDADC_STATUS_CALIBPH3
  • 4 - CY_CSDADC_STATUS_CONVERTING
• bit [9] - stop conversion mode
  • 0 - stop after current channel conversion
  • 1 - stop after all enabled channels in chMask

activeCh

uint8_t cy_stc_csdadc_context_t::activeCh

ID of the channel is being converted:

• bit [0:4] - ID of current measured channel;
• CY_CSDADC_NO_CHANNEL - no active channel.