Lierda Science & Technology Group Co. Ltd LSD4WF2MD05106 Manuel D’Utilisation
7
16
GPIOF_5
EEPROM_SEL
0:Internal NV memory select
1:External EEPROM select
Define:pull-down
1:External EEPROM select
Define:pull-down
17
GND
Ground pin
18
NC
NC
19
NC
NC
20
NC
NC
21
NC
NC
22
NC
NC
23
NFC_IN
NFC+
24
NFC_IP
NFC‐
25
NC
NC
26
GPIOB_0
BOOT_SCENARIO
0:booting from internal memory
1:booting flash
Define: pull-down
1:booting flash
Define: pull-down
27
GPIOB_1
GPIO
28
NC
NC
29
NC
NC
30
NC
NC
31
VDD
VCC(DC_3.3V)
32
GND
Ground pin
33
NC
NC
34
VDD
VCC(DC_3.3V)
35
GPIOC_5
GPIO
36
NC
NC
37
NC
NC
38
GPIOB_2
NORMAL_MODE_SEL
0:Normal operation mode
1:Enter into debug mode
1:Enter into debug mode
Define:pull-down
39
UART2_TX/GPIOA_4
UART2/IO PIN
40
UART2_RTS/GPIOA_2
UART2/IO PIN
41
UART2_RX/GPIOA_0
UART2/IO PIN
42
UART2_CTS/GPIOA_1
UART2/IO PIN
43
GPIOA_5(
nLink)
WIFI LED
“0” WIFI no Connection
“1”WIFI Connection
44
GPIOA_3(nReady)
Module startup instructions
“0: start
“1”no start
“0: start
“1”no start
45
GPIOB_3(nReload)
Restore factory settings