LED1642GW series connection, brightness.

[Artem Skorik]

Posted on January 09, 2017 at 00:16

I try use two drivers. I can switch on/off any output channel, but I can't use brightness registers correctly. Manual has description how work with one driver. But if I send brightness data to first driver, a second driver takes that data too. And if I try send brightness data for each driver, both of them listens only second packet.

How correctly work with brightness on this driver?#led1642gw

[Artem Skorik · Accepted solution]

Posted on January 09, 2017 at 18:12

I found answer. Any data if we have more than one driver should be transfered with packet without latch. For example - 

for one driver:

BRT15-LE3  latch 3

BRT

14

-LE3 

BRT

13

-LE3 

BRT

12

-LE3 

BRT

11

-LE3 

BRT10

-LE3 

BRT9

-LE3 

BRT8

-LE3 

BRT

7

-LE3 

BRT6

-LE3 

BRT5

-LE3 

BRT

4

-LE3 

BRT

3

-LE3 

BRT

2

-LE3 

BRT

1

-LE3 

BRT

0

-LE5   latch 5 

for two drivers:

BRT15-LE0  driver1 brightness register 15  latch 0

BRT15-LE3  

driver2 brightness register 15  latch3

BRT

14

-LE0

BRT

14

-LE3 

BRT

13

-LE0

BRT

13

-LE3 

BRT

12

-LE0

BRT

12

-LE3 

BRT

11

-LE0

BRT

11

-LE3 

BRT10

-LE0 

BRT10

-LE3 

BRT9

-LE0

BRT9

-LE3 

BRT8

-LE0 

BRT8

-LE3 

BRT

7

-LE0

BRT

7

-LE3 

BRT6

-LE0

BRT6

-LE3 

BRT5

-LE0

BRT5

-LE3 

BRT

4

-LE0 

BRT

4

-LE3 

BRT

3

-LE0 

BRT

3

-LE3 

BRT

2

-LE0 

BRT

2

-LE3 

BRT

1

-LE0 

BRT

1

-LE3 

BRT

0

-LE0 

driver1 brightness register 0  latch 0

BRT

0

-LE5  

driver2 brightness register 

0  latch 5