Customising the STV0681
STV0681
5.2
EEPROM data format
Location(decimal)
Contents
0
Leave blank
1
VidLo, The low byte of the Vendor ID
VidHi, The high byte of the Vendor ID
PidLo, The low byte of the Product ID
PidHi, The high byte of the Product ID
Max Power (in units of 0.5mA)
2
3
4
5
6
Max Power with audio playback enabled (in units of 0.5mA)
Auto powerdown time Hi byte (in units of 256ms)
Auto powerdown time Lo byte (in units of 10ms)
Mode button press time Hi byte (in units of 256ms)
Mode button presss time Lo byte (in units of 10ms)
7
8
9
10
11
50Hz/60Hz flicker free selection
0 = board link (GPIO3) , 1 = 50Hz, 2 = 60Hz
12
13
Number of self-timer beeps
CheckSum - low byte of sum of EEPROM locations 1 to 12
inclusive.
20
Length of Manufacturer String
Manufacturer String (ASCII codes)
Length of Product String
21-54 (max)
55
56-89 (max)
90
Product String (ASCII codes)
Length of Interface0 String
91-127 (max)
Interface 0 String (ASCII codes)
5.3
Programming the EEPROM
There is no facility to program the EEPROM using the STV0681 itself and so the device must be
programmed before fitting it to the PCB.
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ADCS 7283313C
STMICROELECTRONICS [ ST ]
