Feasa ICT Series - Page 54

FEASA LED ANALYSER
ICT VERSION
Synchronous Serial Mode
Step-by Step Sequence to Read colour Temperature (cct)
Initialize the board
- Set Addr0/LA_Select = 0
- Set Clock_in = 0
- Set Data_in to 0
2. Clear the Comms Buffer
- Set Data_In to 1
- Set Clock_in to 1 and 0 [8] times to clock in each bit
3. Send the command to read cct as follows
- Set Data_In to 0X60 (01100000)
- Set Clock_in to 1 and 0 repeat [8] times to clock in each bit
4. Send Fiber Number to Read
- Send (0x01 to 0x14) (1-20 decimal)
- Set Clock_in to 1 and 0 repeat [8] times to clock in each bit
5. Read back 2 bytes of data
- Set Clock_in to 1 and 0 repeat [8] times to clock out each bit
- Data_Out = [cct high byte]
- Set Clock_in to 1 and 0 repeat [8] times to clock out each bit
- Data_Out = [cct low byte]
Back to Index
54