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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
SW 1
SW 2
N.A
OFF
N.A
ON
Table 19
Connector X39 Pinout Description
Pin Signal
1
+V1.8_SPI
2
GPIO7
3
SPI0_DOUT_HDR
4
SPI0_CS0#_HDR
5
SPI0_DIN_HDR
Connector Type
X39: 2.54 mm, 2x5 pin female
Copyright © 2017 congatec AG
Configuration
Start SPI communication
Stop SPI communication (pauses the EEPROM)
Pin
Signal
6
SPI0_CS1#
7
SPI0_CLK_HDR
8
RESET_OUT#
9
GND
10
GND
M18
SPI Header - X39
2
4
6
8
10
1
3
5
7
9
SEVALm10
SOIC Socket - U37
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