Maxim-integrated MAXQ20-Based Microcontroller Bootloader Command Re Bedienungsanleitung PDF herunterladen (Seite 12)

MAXQ20-Based Microcontroller Bootloader Command Reference

Family 9 Commands—Load Fixed Length

Command 90h—Load Code Fixed Length

Byte1

Byte2

Byte3

Byte4

Byte5

Bytex

Byte21

Byte22

Input

90h

CodeLen

AddrL

AddrH

Data1

Data(x-4)

00h

Output

03Eh

This command loads a block of 16 bytes into the program memory starting at the specified address. The address,

which must be from 0000h–07FFh, is rounded down to the nearest block boundary (multiple of 16) before the

data is loaded. CodeLen is one of the values returned by the Get Supported Commands command.

Command 91h—Load Data Fixed Length

Byte1

Byte2

Byte3

Byte4

Byte5

Byte6

Byte7

Byte8

Byte9

Byte10

Input

91h

DataLen

AddrL

AddrH

Data1

Data2

Data3

Data4

00h

Output

03Eh

This command is only useful in devices with nonvolatile data memory. This command loads a block of 4 bytes into

data memory starting at the specified address. The address, which must be from 0040h–00BFh, is rounded down

to the nearest block boundary (multiple of 4) before the data is loaded. DataLen is one of the values returned by

the Get Supported Commands command.

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