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A31G324RLN shield board implementation guide
3. Building and running project (Shield board)
11
3.1.2
Hardware components of the Shield board
Table 1. Shield Board Description
Function
Description
Remark
SW1
User SW
PA0
SW2
User SW
PA5
SW3
User SW or EBI Reset Pin
PB9
Buzzer
PWM
PA7 / TIMER40OUT
LCD
EBI to LCD
EBI 8bit bus
AT25080B-SSHL-B
EEPROM
SPI(20MHz, 8bit)
Figure 8. A31G324RLN Shield Board Description