Hardware layout and configuration
UM1065
Doc ID 018640 Rev 4
2.6 EEPROM
A 64 Kbit EEPROM is connected to the I2C1 bus of STM32F217IGH6.
2.7 CAN
The STM3221G-EVAL evaluation board enables two channels of CAN2.0A/B compliant
CAN bus communication based on a 3.3 V CAN transceiver on one DB9 connector (CN10).
The two CAN buses can be disconnected by jumpers from the relevant STM32F217IGH6
I/Os which are shared with FSMC and USB OTG HS.
JP3 and JP10 must be refitted to enable CAN1 or CAN2 as listed in
.
High-speed, Standby and Slope Control modes can be selected by setting jumper JP7.
Table 4.
EEPROM related jumper and solder bridge
Jumper
Description
JP24
EEPROM is in Write Protection mode when JP24 is not fitted.
Default setting: Not fitted.
Table 5.
CAN-related jumpers
Jumper
Description
JP3
To connect CAN1_TX to CAN transceiver, set JP3 as shown:
To connect CAN2_TX to CAN transceiver, set JP3 as shown:
JP10
To connect CAN1_RX to CAN transceiver, set JP10 as shown:
To connect CAN2_RX to CAN transceiver, set JP10 as shown:
PD0 and PB5 are disconnected from the CAN transceiver and used for FSMC and
USB_OTG_HS when jumper JP10 is not fitted (default setting).
JP7
To enable the selected CAN transceiver to work in Standby mode, set JP7 as
shown:
To enable the selected CAN transceiver to work in High-speed mode, set JP7 as
shown (Default setting):
To enable the selected CAN transceiver to work in Slope Control mode, do not fit JP7.
JP9
To enable the terminal resistor for the selected CAN, fit a jumper on JP9.
(Default setting: Not fitted).
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1