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OLIMEX© 2014
8.2 Board revision
Remember to check the schematics and the board design files to compare the differences.
Revision
Notable Changes
B
Initial release of the board
1. Fixed the VGA problem with development edition;
2. changed UART1 to UART0 and added new UART1;
3. added SMD jumper to be able to disable CS if you wish to boot from SD
card in future;
C
4. JTAG signals are on led to pads;
5. added test pads for the voltage of all regulators;
6. moved couple of elements for better distance between each other
1. Removed resistor matrices, except the ones near DDR3 memories – to
lower production fault rates and improve repair-ability of the boards
D
2. Added header NA(HN1X2) so you can power only the RTC from external
battery
3. BAT54C is added to allow RTC powering either from VDD_RTC or 3.0V_BAT
1. Added BAT54C after Rx to UART1 connector
2. Added 4.32k pull-up resistor on the RX line
3. Changed wrong prints of the revision and the Olimex web-site
E
4. Some libraries updated and some component prints removed due to space
restrictions
5. Optimization of R10, R12, R13 with (239R/1%) value to 330R/1%
1. Changed the SD card package with a more easier to replace one
F
2. Changed to package of the 32768 quartz crystal with an SMD type
Page 35 of 37
A13-OLinuXino user's manual
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