Atmel C51 Arkusz Danych Pobierz pdf (Strona 101)

101

AT89C51RB2/RC2

4180E–8051–10/06

Blank Check Command

Description

Figure 43. Blank Check Flow

Example

Host

Bootloader

Blank Check Command

’X’ & CR & LF

Flash blank

Wait Blank Check Command

Send first Address

Send COMMAND_OK

Send Blank Check Command

Wait Checksum Error

Wait Address not

erased

Wait COMMAND_OK

COMMAND ABORTED

COMMAND FINISHED

Send Checksum error

COMMAND FINISHED

’.’ & CR & LF

address & CR & LF

not erased

Checksum error

HOST : 05 0000 04 0000 7FFF 01 78

BOOTLOADER : 05 0000 04 0000 7FFF 01 78 . CR LF

Blank Check ok

BOOTLOADER : 05 0000 04 0000 7FFF 01 70 X CR LF CR LF

Blank Check with checksum error

HOST : 05 0000 04 0000 7FFF 01 70

BOOTLOADER : 05 0000 04 0000 7FFF 01 78 xxxx CR LF

Blank Check ko at address xxxx

HOST : 05 0000 04 0000 7FFF 01 78

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Atmel C51 Arkusz Danych Strona 101