NSAM266SAASLASHV datasheet(38/52 Pages) NSC

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20 Software (Continued)

Example

GTM FFCE 003F 0

Byte sequence

Microcontroller

09 FF CE 00 3F 00 AA

CompactSPEECH 09 FF CE 00 3F 00 01

Description

Select the oldest of the new ICMs in mailbox number 6 to be the current

message For a system where the message tag is encoded as described in the

example for the DMS command The CompactSPEECH return value indicates

that there is such a message

The following pseudo-code demonstrates how to play all new ICMs The

messages are marked after being played

In mailbox number 6

Return val e GTM (FFCE

003F

While (ReturnVal

44 TRUE)

Begin

P( )

* Play *

Message tag

4 GMT( ) * get message tag *

SMT(FFF7)

* Mark the message as ‘old’ *

GTM(FFCE

003F

* get next with same tag *

End

INIT

Initialize System

Execute this command after the CompactSPEECH has

been configured (see CFG and GCFG commands)

Performs a soft reset of the CompactSPEECH as follows

Initializes the message directory information

Messages are not deleted To delete the messages use

the DM and DMS commands

Sets the detectors mask to 0

Sets the volume level that is controlled by the VC com-

mand to 0

Sets the playback speed to normal (0)

Switches to the IDLE state

Activates (clears to 0) the MWRDY signal

Initializes the tone detectors

The current message is undefined after INIT execution

The tunable parameters are not affected by this command

They are set to their default values only during RESET

Example

INIT

Byte sequence

Microcontroller

CompactSPEECH 13

Description

Initialize the CompactSPEECH

INJ

Inject IVS data

n byte1

byten

Injects vocabulary data of size

n bytes to good flash blocks

This command programs flash devices on a production line

with IVS vocabulary data It is optimized for speed all

CompactSPEECH detectors are suspended during execu-

tion of the command Use the CVOC command to check

whether programming was successful

If there is not enough memory space for the vocabulary

data ERR

PARAM is set in the error word and execution

stops

Flash blocks that include IVS data cannot be used for re-

cording even if only one byte of the block contains IVS data

(eg if the vocabulary size is 4k a 100 bytes two blocks of

the flash are not available for message recording)

Example

INJ 128

Data

Byte

sequence

Microcontroller

29 00 00 00 80

Vocabulary

Data

CompactSPEECH 29 00 00 00 80 Echo of Data

Description

Inject 128 bytes of vocabulary data

Memory Reset

Erases all good flash blocks and initializes the Compact-

SPEECH (ie does exactly what the INIT command does)

Bad blocks and blocks which are used for IVS vocabularies

are not erased

Note

The command erases all messages and should be used with care

Example

Byte sequence

Microcontroller

CompactSPEECH 2A

Description

Erase all Serial Flash blocks

Playback

Begins playback of the current message The Compact-

SPEECH state changes to PLAY When playback is com-

plete the CompactSPEECH sets the EV

NORMAL

END

bit in the status word and activates (clears to 0) the

MWRQST signal Playback can be paused with the PA com-

mand and can be resumed later with the RES command

If the current message is undefined ERR

INVALID is re-

ported

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NSAM266SAA/V 数据表(PDF) 38 Page - National Semiconductor (TI)

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