User's Guide

NA-20-0386-0006-1.5 Inpixon Swarm Chirp V3 Dev Board User Guide
Inpixon_UG_Swarm_Chirp_V3_Dev_Board_1.5.docx 11
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4.1.6. Connector X4
The USB to Serial bridge serves to connect or disconnect the USB to serial converter to the USART lines. The jumpers
shall be removed if a serial interface is connected to the Host connector X1. See Figure 4-2.
Table 4-4: X4 connector pin assignment
Pin No.
Description
Type
Module Pin
Comments
1-2
USART_TX
Output: Serial transmission line
12
If closed do not connect to X1 or X3
3-4
USART_RX
Input: Serial receiving line
19
USART settings are: 115.2 Kbps, 1 start bit, 8 data bits, 1 stop bit, no parity, no flow control
Note: All levels refer to 2.6 V. In any case refer to the Inpixon Swarm Chirp V3 Technical Reference [1].
Figure 4-2: USART connectors
4.1.7. Connector X5
Table 4-5: X5 connector pin assignment
Pin No.
Description
Type
Module Pin
Comments
1
Ground
2
\TX_RX
Output: RX (high), TX (low)
15
Transceiver direction
3
Reserved
-
Do not use
4
+2V6
µController voltage. Can be used for level shifters
13
5
MOD_EN
Input: Module enabled (high) or disable (low)
11
6
\NRST
Input: Resets µController, active (low)
10
7
A_MODE
Input: Autonomous (high) or host-controlled mode
(low)
9
8
VIN
Output: Supply voltage of Inpixon Swarm Chirp V3
module
7