DocID029088 Rev 3
23/80
UM2036
Hardware layout and configuration
79
Some PCB reworks are needed for microSD card2 application to disconnect peripherals
which share I/Os with microSD card2 and remove the camera module away from the board:
•
Open SB16
•
Connect JP7 to pin1 and pin 2
6.11 CAN
The STM32F779I-EVAL evaluation board supports one channel of CAN2.0A/B compliant
CAN bus communication based on 3.3V CAN transceiver.
High-speed mode, stand-by mode and slope-control mode are available and can be
selected by setting JP19.
6.12 Ethernet
The STM32F779I-EVAL evaluation board supports 10M/100M Ethernet communication by a
PHY DP83848CVV (U6) and integrated RJ45 connector (CN9). Ethernet PHY is connected
to STM32F779NI via MII interface.
25M clock can be generated by PHY or provided by MCO from STM32F779NI by setting
jumper JP12 shown in
Table 11: Ethernet related jumpers
MII serial management signals (MDIO and MDC) are simulated by GPIOs (PJ12 and PJ13)
by default on the STM32F779I-EVAL. The original MII serial management signals of the
Ethernet IP in the STM32F779NI can be also used by setting JP3 and JP6. Refer
for all the details.
Table 10. CAN related jumpers
Jumper
Description
JP19
CAN transceiver is working in standby mode when JP19 is set as shown to the right:
CAN transceiver is working in high-speed mode when JP19 is set as shown to the
right: (default setting)
CAN transceiver is working in slope control mode when JP19 is open.
JP18
CAN terminal resistor is enabled when JP18 is fitted.
Default setting: Not fitted
JP14
PA11 is connected with CAN RX signal when JP14 is fitted.
Default setting: Not fitted