DocID024597 Rev 3 511/1693
RM0351 Analog-to-digital converters (ADC)
540
Bit 23 AWD1EN: Analog watchdog 1 enable on regular channels
This bit is set and cleared by software
0: Analog watchdog 1 disabled on regular channels
1: Analog watchdog 1 enabled on regular channels
Note: Software is allowed to write this bit only when ADSTART=0 (which ensures that no regular
conversion is ongoing).
Bit 22 AWD1SGL: Enable the watchdog 1 on a single channel or on all channels
This bit is set and cleared by software to enable the analog watchdog on the channel identified by
the AWD1CH[4:0] bits or on all the channels
0: Analog watchdog 1 enabled on all channels
1: Analog watchdog 1 enabled on a single channel
Note: Software is allowed to write these bits only when ADSTART=0 and JADSTART=0 (which
ensures that no conversion is ongoing).
Bit 21 JQM: JSQR queue mode
This bit is set and cleared by software.
It defines how an empty Queue is managed.
0: JSQR Mode 0: The Queue is never empty and maintains the last written configuration into JSQR.
1: JSQR Mode 1: The Queue can be empty and when this occurs, the software and hardware
triggers of the injected sequence are both internally disabled just after the completion of the last valid
injected sequence.
Refer to Section 16.3.21: Queue of context for injected conversions for more information.
Note: Software is allowed to write this bit only when JADSTART=0 (which ensures that no injected
conversion is ongoing).
When dual mode is enabled (DUAL bits in ADCx_CCR register are not equal to zero), the bit
JQM of the slave ADC is no more writable and its content is equal to the bit JQM of the master
ADC.
Bit 20 JDISCEN: Discontinuous mode on injected channels
This bit is set and cleared by software to enable/disable discontinuous mode on the injected
channels of a group.
0: Discontinuous mode on injected channels disabled
1: Discontinuous mode on injected channels enabled
Note: Software is allowed to write this bit only when JADSTART=0 (which ensures that no injected
conversion is ongoing).
It is not possible to use both auto-injected mode and discontinuous mode simultaneously: the
bits DISCEN and JDISCEN must be kept cleared by software when JAUTO is set.
When dual mode is enabled (bits DUAL of ADCx_CCR register are not equal to zero), the bit
JDISCEN of the slave ADC is no more writable and its content is equal to the bit JDISCEN of
the master ADC.
Bits 19:17 DISCNUM[2:0]: Discontinuous mode channel count
These bits are written by software to define the number of regular channels to be converted in
discontinuous mode, after receiving an external trigger.
000: 1 channel
001: 2 channels
...
111: 8 channels
Note: Software is allowed to write these bits only when ADSTART=0 (which ensures that no regular
conversion is ongoing).
When dual mode is enabled (DUAL bits in ADCx_CCR register are not equal to zero), the bits
DISCNUM[2:0] of the slave ADC are no more writable and their content is equal to the bits
DISCNUM[2:0] of the master ADC.
To Next Page
Loading...
Need help?
General
