UM1519 datasheet(25/40 Pages) STMICROELECTRONICS

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UM1519

Board configuration

Doc ID 022813 Rev 2

25/40

Board configuration

4.1

STM322xG-EVAL demonstration board setup

Set up the STM322xG-EVAL board as follows:

●

Keep jumper JP16, JP21 and JP22 not fitted

●

Set JP5 in 1-2 position, and JP6 in 2-3 position

●

Disconnect motor control board from CN5

●

Remove MicroSD card from CN6

●

Remove R115 and R140.

Set up the ZigBee-Dual IF EEprom adapter as follows:

●

Place the adapter on the STM322xG-EVAL board so that it is well fixed on the

connectors CN2, CN3 and CN4.

●

Set JP3 and JP4 in 1-2 position in order to set the communication between the

STM32W and STM32F2xx via UART or in 2-3 position to communicate via SPI.

●

In order to address the dual interface EEPROM (M24LR64r) via I2C, JP1 and JP2 must

be properly set. The I2C address of the EEPROM is composed as “1010 xxxx”. It

represents the device select code and consists of a 4-bit device type identifier, and a 3-

bit chip enable “Address” (E2, E1, E0) plus 1-bit for read/write operation. To address

the memory array, the 4-bit device type identifier is 1010b (0xA).

So, the second group of the device select code is the customizable part of the I2C

address of the memory. In detail, it is made up as follows:

–

E2 is the sector protection bit. To access the user area memory it must be set to 0,

while to access the system area it is set to 1

–

E1 and E0 are used to customize the I2C address

–

The 8th bit is the read/write bit (RW). This bit is set to 1 for read and 0 for write

operations

–

Setting JP1 and JP2 in position 1-2 results in having 0xA6 as the I2C address for

the EEPROM.

4.2

STM322xG-EVAL and ZigBee adapter with M24LR64-r

memory

The connections between the MCU and the ZigBee module + EEPROM dual interface are

shown in Table 13.

Table 13.

ZigBee adapter pinout description

STM32

pin name

STM322xG-EVAL I/O assignment

Extension

connector pin. no

ZigBee adapter I/O

assignment

APP_3V3

CN3 - Pin 48

VCC_3V3

GND

CN3 - Pin 1

GND

PA4

Audio_DAC_OUT (remove R115)

CN2 - Pin 4

ZIG_SS (SPI3)

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