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RM0440 Rev 4 637/2126

RM0440 Analog-to-digital converters (ADC)

724

Queue of context: Behavior when a queue overflow occurs

The Figure 101 and Figure 102 show the behavior of the context Queue if an overflow

occurs before or during a conversion.

Figure 101. Example of JSQR queue of context with overflow before conversion

1. Parameters:

P1: sequence of 2 conversions, hardware trigger 1

P2: sequence of 1 conversion, hardware trigger 2

P3: sequence of 3 conversions, hardware trigger 1

P4: sequence of 4 conversions, hardware trigger 1

Figure 102. Example of JSQR queue of context with overflow during conversion

1. Parameters:

P1: sequence of 2 conversions, hardware trigger 1

P2: sequence of 1 conversion, hardware trigger 2

P3: sequence of 3 conversions, hardware trigger 1

P4: sequence of 4 conversions, hardware trigger 1

MS30538V2

JSQR

queue

Write JSQR

P1 P2

EMPTY

Trigger 1

ADC state

Conversion1RDY Conversion2 RDY

JQOVF

Cleared by SW

P1 P1, P2

P2P1EMPTY

P2, P4

=> Overflow,

ignored

JEOS

ADC

J context

(returned by

reading JQSR)

Trigger 2

Conversion1

MS30539V2