Renesas Renasas Single-Chip Microcomputer SH7086 Manuel d'utilisateur télécharger pdf (Page 18)

SH7080 Group

A/D Conversion in Single-cycle Scan Mode

REJ06B0699-0100/Rev.1.00 January 2008 Page 16 of 19

6.2 A/D Conversion Routine

ad_conv ()

End

Yes

Is A/D

conversion

ended?

Repeat loop until ADF of ADCSR_0 is set to 1.

[Function]

Remaining in standby mode until A/D conversion

is ended.

Set ADST of ADCR_0 to 1.

[Function]

Starting A/D conversion.

Clear ADF bit of ADCSR_0 to 0.

Store A/D-converted data (in ADDR0) in

RAM (Ad_data).

Increment channel number counter

(ch_count).

Store A/D-converted data (in ADDR1) in

RAM (Ad_data).

Increment channel number counter

(ch_count).

Store A/D-converted data (in ADDR2) in

RAM (Ad_data).

Increment channel number counter

(ch_count).

Store A/D-converted data (in ADDR3) in

RAM (Ad_data).

Clear channel number counter (ch_count)

for next round of A/D conversion.

Increment conversion counter (ad_count)

for three rounds of A/D conversion.

Clear ADF bit.

Start A/D conversion.

Store AD data (AN0)

in RAM.

Increment channel

number counter.

Increment channel

number counter.

Store AD data (AN2)

in RAM.

Increment channel

number counter.

Store AD data (AN3)

in RAM.

Clear channel

number counter.

Increment A/D

conversion counter.

Store AD data (AN1)

in RAM.

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Renesas Renasas Single-Chip Microcomputer SH7086 Manuel d'utilisateur Page 18

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