UM1521
Connectors
Doc ID 022868 Rev 1
27/56
3.4
Daughterboard extension connector CN5 and CN10
Two 42-pin male headers CN5 and CN10 can connect the daughterboard (or standard
wrapping board) to the STM32L152D-EVAL evaluation board. All GPIOs are available on
them and the LCD glass connectors (CN6, CN7).
The space between these two connectors and positions of POWER, GND and RESET pins
are defined as a standard which allows common daughterboards to be developed for
several evaluation boards. The standard width between CN5 pin1 and CN10 pin1 is
2700 mils (68.58 mm). This standard has been implemented on the majority of evaluation
boards.
Each pin on CN5 and CN10 can be used by a daughterboard after disconnecting it from the
corresponding function block on the STM32L152D-EVAL evaluation board. Refer to
for detail.
Table 22.
Daughterboard extension connector CN5
Pin Description
Alternative
function
How to disconnect with function block on
STM32L152D-EVAL board
1
GND
-
-
3
PF5
FSMC_A5
-
5
PF3
FSMC_A3
-
7
PF1
FSMC_A1
-
9
PE6
Tamper / Key / U5V_DET
Remove R150
11
PC14
32K OSC
Remove R85 and close SB8
13
PE5
FSMC_A21
/ TRACED2
-
15
PC15
32K OSC
Remove R84 and close SB7
17
PA4
CON_ADC4 -DAC1 /
Audio_DAC_OUT
JP7 open
19
GND
-
-
21
PB2
BOOT1
Remove R89
23
PF12
FSMC_A6
-
25
PF14
FSMC_A8
-
27
PG0
FSMC_A10
-
29
PE7
FSMC_D4
-
31
VLCD
-
-
33
PE9
FSMC_D6
-
35
PE11
FSMC_D8
-
37
PE13
FSMC_D10
-
39
GND
-
-
41
PG2
FSMC_A12
-
2
-
-
-
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