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Hardware Layout and configuration
UM1935
22/77
DocID028194 Rev 1
5.12 CAN
STM32479I-EVAL evaluation board supports one channel of CAN2.0A/B compliant CAN
bus communication based on 3.3V CAN transceiver.
High-speed mode, standby mode and slope control mode are available and can be selected
by setting JP12.
5.13 Ethernet
STM32479I-EVAL evaluation board supports 10M/100M Ethernet communication with a
PHY DP83848CVV (U6) and integrated RJ45 connector (CN9). Ethernet PHY is connected
to STM32F479NIH6 via MII (Media Independent Interface) interface. 25 MHz clock can be
generated by PHY or provided by MCO from STM32F479NIH6 by setting
jumper JP7
shown in
Table 10: Ethernet related jumpers
.
Table 9. CAN related jumpers
Jumper
Description
JP12
CAN transceiver is working in standby mode when JP12 is set as shown to the right:
CAN transceiver is working in high-speed mode when JP12 is set as shown to the
right: (default setting)
CAN transceiver is working in slope control mode when JP12 is open.
JP13
CAN terminal resistor is enabled when JP13 is fitted.
Default setting: Not fitted
JP9
PA11 is connected with CAN RX signal when JP9 is fitted.
Default setting: Not fitted
Table 10. Ethernet related jumpers
Jumper
Description
JP7
25MHz clock is provided by external crystal X4 when JP7 is set as shown to the
right: (Default setting)
25MHz clock for MII is provided by MCO at PA8 when JP7 is set as shown to the
right:
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