AN4460 datasheet(34/54 Pages) STMICROELECTRONICS

34 / 54 page

User interface

AN4460

34/54

DocID026129 Rev 1

Parameters:



add: the memory address. It is possible to use a hexadecimal value using the “0x”

prefix. The total memory area available on the STLUX385A is 64 Kbyte.



len: total length of memory to be retrieved, in bytes. “0x” can be used as prefix for

a hexadecimal number.

Output:



The memory content starting from [add] address and [len] bytes long.

7.4.12

rr - read memory, single byte

The command reads and displays the specified byte of memory.

Syntax: rr [add]

Parameters:



add: the memory address. It is possible to use a hexadecimal value using the “0x”

prefix. The total memory area available on the STLUX385A is 64 Kbyte.

Output: the byte located at [add] address

7.4.13

rw - write memory, single byte

The command writes a single byte of memory. The incorrect use of this command could

overwrite internal registers and change the behavior of the device and could cause the

destruction of the demonstration board.

Syntax: rw [add] [dat]

Parameters:



add: the memory location to write. It is possible to use a hexadecimal value using the

“0x” prefix. The total memory area available on the STLUX385A is 64 Kbyte.



dat: the byte to be written. It is possible to use a hexadecimal value using the “0x”

prefix.

Output: none

7.4.14

ed - enable global dimming function

It enables or disables the global dimming function. When the function is enabled, the “di”

command applies to all channels. At the same time, the “+” and “-” buttons operate in global

dimming mode. When the function is disabled, the “di” command is disabled and the LED

dimming can only be changed via the “ll” command. Besides, the “+” and “-” buttons control

a single channel. The [ed] value is stored into the E2PROM data area for its read back at the

next power-on. On reset, should “ed” be enabled, the last “ll” dimming value is not applied

immediately but with a gradual light increment (from 0% to the “ll” value).

Syntax: ed [enable]

Parameters:



enable [0,1]: enables or disables the global dimming function.

Output: none

AN4460 Datasheet(PDF) 34 Page - STMicroelectronics

AN4460 Datasheet(HTML) 34 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Datasheet Download

Link URL