Copyright
©
2017
congatec
AG
SEVALm10
28/58
Connector Type
CN2: 2.54 mm, 2 x 7 pin header
4.1.5
SPI
The conga-SEVAL offers the possibility to boot the SMARC module from an onboard SPI flash via an 8-pin SOIC socket (U37) or from an SPI
device attached to connector X39. The SPI flash onboard the conga-SEVAL makes it possible to evaluate a customized BIOS.
Use switch 2 of DIP switch M18 to start or stop SPI communication (SPI_HOLD#) with the SPI flash onboard the conga-SEVAL (U37), and DIP
switch M17 and M18 to configure which flash device the SMARC module should boot from. For more information about boot selection, see
section 4.2 “Boot Selection”.
Table 18 DIP Switch M18 Pinout Description
DIP Switch M12
Configuration
SW 1
SW 2
N.A
OFF
Start SPI communication
N.A
ON
Stop SPI communication (pauses the EEPROM)
Table 19 Connector X39 Pinout Description
Pin Signal
Pin Signal
1
+V1.8_SPI
6
SPI0_CS1#
2
GPIO7
7
SPI0_CLK_HDR
3
SPI0_DOUT_HDR
8
RESET_OUT#
4
SPI0_CS0#_HDR
9
GND
5
SPI0_DIN_HDR
10
GND
Connector Type
X39: 2.54 mm, 2x5 pin female
SOIC Socket - U37
1
2
0N
M18
SPI Header - X39
10
8
9
7
6
5
4
3
2
1
