Connecting modules on the prototyping board UM1658
28/39 DocID025097 Rev 1
5.2 ST MEMS “adapter boards”, standard DIL24 socket
STMicroelectronics has defined a standard DIL24 connector to easily evaluate its MEMS
sensors connected to a microcontroller through SPI or I2C communications.
Table 8 is one solution for connecting the DIL24 boards to the 32F0308DISCOVERY, this
solution is used in different examples and available at www.st.com/stm32f0-discovery.
Table 8. Connecting with a DIL24 board
ST MEMS DIL24 Eval board 32F0308DISCOVERY
P01 VDD Power supply 3V VDD
P02 Vdd_IO Power supply for I/O pins 3V VDD
P03 NC
P04 NC
P05 NC
P06 NC
P07 NC
P08 NC
P09 NC
P10 NC
P11 NC
P12 NC
P13 GND 0V supply GND GND
P14 INT1 Inertial interrupt 1 PB12 GPIO INPUT EXTI (5V tolerant)
P15 INT2 inertial interrupt 2 PB11 GPIO INPUT EXTI (5V tolerant)
P16 NC
P17 NC
P18 NC
P19 CS - 0:SPI enabled 1:I2C mode PA11 GPIO OUTPUT (5V tolerant)
P20
SCL (I2C serial clock)
SPC (SPI serial clock)
PB6
PB3
I2C1_SCL
SPI1_SCK
P21
SDA I2C Serial Data
SDI SPI Serial Data Input
PB7
PB5
I2C1_SDA
SPI1_MOSI
P22
SDO SPI Serial Data Output
I2C less significant bit of the device address
PB4 SPI1_MISO
P23 NC
P24 NC
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