Connectors
UM1668
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DocID025151 Rev 2
3.6 Daughterboard
extension connector CN6 and CN7
Two 60-pin male headers CN6 and CN7 can connect a daughterboard or standard wrapping
board to the STM32439I-EVAL evaluation board. All GPI/Os are available on them and
memory connectors (CN11 & CN12).
The space between these two connectors is defined as a standard which allows common
daughterboards to be developed for several evaluations boards.
The standard width between the CN6 pin1 and CN7 pin1 is 2700 mils (68.58 mm).
Each pin on CN6 and CN7 can be used by a daughterboard after it has been disconnected
from the corresponding function block on the STM32439I-EVAL evaluation board.
Refer to
Table 20
and
Table 21
for details.
Table 20. Daughterboard extension connector CN6
Pin Description Alternative
function
How to disconnect with function block on
STM32439I-EVAL board
1
GND
-
-
3
PH0
OSC_IN
Remove R20, Close SB5
5
RESET#
-
-
7
PF6
SAI1_SD_B
-
9
PF10
Potentiometer
Remove R28
11
PC0
ULPI_STP
-
13
PA2
MII_MDIO/
MC_EnIndex
Remove R211, R215
15
PA0
KEY_WKUP/
MII_CRS/
MC_ENA
Remove R219, R223, SB7
17
PF8
SAI1_SCK_B
-
19
GND
-
-
21
PA4
PAR_HSYNC
Disconnect CN5
23
PC2
MII_TXD2/
MC_CurrentB
Remove R228, R232
25
PC4
MII_RXD0/
MC_BUSVOLTAGE
Remove R235, R239
27
PC3
MII_TX_CLK/
MC_CurrentC
Remove R238, R242
29
PB2
BOOT1
Remove R5
31
PJ3
LCD_R4
-
33
PB10
ULPI_D3
-
35
PB14
USB_FS2_DM
Remove R302, Disconnect CN15
37
PH6
MII_RXD2
Remove R47
39
GND
-
-
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