235
/
838
Nations Technologies Inc.
Tel
:
+86-755-86309900
:
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China
Bit field
Name
Description
1: Continuous conversion mode.
0
ON
A/D converter ON/OFF
This bit is set and cleared by the software. When the bit is' 0 ', writing '1' will wake the ADC
from power-off mode.
When the bit is' 1 ', writing '1' starts the conversion. The application should note that there is a
delay t
STAB
between the time the converter is powered on and the time the conversion begins, see
0: Close ADC conversion/calibration and enter power-down mode.
1: Start ADC and start conversion.
Note: If there are other bits changed in this register along with ON, the conversion will not be
triggered. This is to prevent the wrong conversion from being triggered.
9.12.5
ADC sampling time register 1 (ADC_SAMPT1)
Address offset: 0x0C
Reset value: 0x0000 0000
Bit field
Name
Description
31:24
Reserved
Reserved, the reset value must be maintained
23:0
SAMPx[2:0]
Channel x sample time selection
These bits are used to independently select the sampling time for each channel. The channel selection
bit must remain constant during the sampling period.
ADC_SAMPT3.SAMPSEL = 0, the sampling time is set as follows:
000: 1.5 cycles 100: 41.5 cycles
001: 7.5 cycles 101: 55.5 cycles
010: 13.5 cycles 110: 71.5 cycles
011: 28.5 cycles 111: 239.5 cycles
ADC_SAMPT3.SAMPSEL = 1, the sampling time is set as follows:
000: 1.5 cycles 100: 19.5 cycles
001: 2.5 cycles 101: 61.5 cycles
010: 4.5 cycles 110: 181.5 cycles
011: 7.5 cycles 111: 601.5 cycles
9.12.6
ADC sampling time register 2 (ADC_ SAMPT2)
Address offset: 0x10
Reset value: 0x0000 0000