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UART0_RTS#: UART Interface, Handshake signal, Request to Send (output) line, +3.3V_RUN electrical level.
UART0_CTS#: UART Interface, Handshake signal, Clear to Send (Input) line, +3.3V_RUN electrical level.
Please consider that interface is at TTL electrical level; therefore, please evaluate well the typical scenario of application. If it isn t needed explicitly to interface directly
at TTL level, for connection to standard serial ports commonly available (like those offered by common PCs, for example) it is mandatory to include an RS-232
transceiver on the carrier board.
The following schematic shows an example of implementation of RS-232 transceiver for the Carrier board
All schematics (henceforth also referred to as material) contained in this manual are provided by SECO S.p.A for the sole purpose of supporting the
customers' internal development activities.
The schematics are provided "AS IS". SECO makes no representation regarding the suitability of this material for any purpose or activity and disclaims all
warranties and conditions with regard to said material, including but not limited to, all expressed or implied warranties and conditions of merchantability,
suitability for a specific purpose, title and non-infringement of any third party intellectual property rights.
The customer acknowledges and agrees to the conditions set forth that these schematics are provided only as an example and that he will conduct an
independent analysis and exercise judgment in the use of any and all material. SECO declines all and any liability for use of this or any other material in the
customers' product design
®
Based on Qseven
Rel. 2.1 specifications, this module offers one UART interface. This interface and another internal UART can be used by i.XM8M processors for
different scopes, depending on the factory configuration when ordering the module. This table below summarizes all the possible uses.
Q7-C25
Q7-C25 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Authors: S.B. and A.R - Reviewed by N.P. - Copyright © 2020 SECO S.p.A
U1
1
16
C1+
VCC
C4
CC-100nF/25V
3
15
C1-
GND
11
14
UART0_TX
T1IN
T1OUT
10
7
UART0_RTS#
T2IN
T2OUT
12
13
UART0_RX
R1OUT
R1IN
9
8
UART0_CTS#
R2OUT
R2IN
4
2
C2+
V+
C5
CC-100nF/25V
5
6
C2-
V-
SP3232ECY
Configuration
QC25-XXXX-XXX1-X1
QC25-XXXX-XXX3-X1
QC25-XXXX-XXX4-X1
+3.3V_S
P1
10
5
C1
9
CC-100nF/25V
4
8
RS232_CTS#
3
RS232_TX
RS232_RTS#
7
RS232_RTS#
2
RS232_RX
6
RS232_CTS#
1
11
C2
CC-100nF/25V
DB9 CONNECTOR
C3
CC-100nF/25V
UART2
UART4
Q7_UART0
Q7_SPI
WiFi + BT
Q7_SPI
Q7_UART0
WiFi + BT
27
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