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Changes for page Front I/O

Last modified by Kevin Wiki on 2024/07/07 22:48
From version 7.2
edited by Kevin Wiki
on 2024/07/05 09:26
Change comment: There is no comment for this version
To version 7.3
edited by Kevin Wiki
on 2024/07/05 09:31
Change comment: There is no comment for this version

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148 148  
149 149  == SAA1064T data for driving center IO LED stack ==
150 150  
151 -Center IO stack is a stack of 23 LED's, 22 blue and 1 green for ethernet activity. These are duplicated next to each other and driven by each their SAA1064T chips. Earlier we found the i2c address and just by playing around figured out that 4 segments of 1 byte binary values are used to set ship register.
151 +Center IO stack is a stack of 24 LED's, 23 blue and 1 green for ethernet activity. These are duplicated next to each other and driven by each their SAA1064T chips. Earlier we found the i2c address and just by playing around figured out that 4 segments of 1 byte binary values are used to set ship register.
152 152  
153 153  {{code language="C++"}}
154 154  void fillColumns() {
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166 166  {{/code}}
167 167  
168 168  (% class="wikigeneratedid" %)
169 -Here the last byte we send only is 5 bits since we only have 5 LEDs instead of 6 to address (total of 23). Also note that we start the transmission with a single bit.
169 +~-~- Here the last byte we send only is 5 bits since we only have 5 LEDs instead of 6 to address (total of 24). Also note that we start the transmission with a single bit. ~-~-
170 170  
171 171  == Pinouts voltages from MLB ==
172 172