Overriding maximum volume level of door chime circuit

Thread Starter

Mikezoe65

Joined Jun 18, 2016
9
[DEVICE SETTING]
NUM SUPPORT FLASH TYPE = 17
DATA_START_ADDRESS = 0x100000
CLUSTER_SIZE = 0x400
POWER_SWTICH_TIME = 0xFFFF
LED_FLASH_HALF_PERIOD = 0xFFFF
MAX_VOLUME_LEVEL = 0xFFFF
DEFAULT_MRC = Silence

Can someone advise me how to override the Max volume level in the above inf file (part of inf file controlling the sound from a Siemens wifi door chime unit). Thanks
 

Thread Starter

Mikezoe65

Joined Jun 18, 2016
9
Can anyone explain in "paint by numbers" simplicity what that value means? Thanks! Why would it be the maximum value I can set?
 

AlbertHall

Joined Jun 4, 2014
11,960
Note that I don't know that this is the maximum value, but I will explain why I think it is.
0xFFFF is a way of expressing a hexadecimal number with each 'F' representing four binary digits each set to '1'.
So 0xFFFF equals 1111 1111 1111 1111 in binary, that is sixteen binary digits. This can be stored in two full bytes (8 bits per byte) - a fairly common size for storing numbers in a microcontroller. To make this number bigger (which would presumably represent 'louder') would require extra storage space.

Does that help?
 
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