TWR-WIFI-G1011MI Lab Guide
Page 5 of 11
Table 1.
TWR-WIFI-GS1500M Default Jumper and Switch Settings
Jumper
Option
Setting
Description
SW1
Power Supply
Input
ELEV PWR
Power from Tower System 3.3V
DC PWR
Power from DC power jack (J2)
SW6
Mode Selection
RUN
GS1500M in standard "run" mode
PRGM
GS1500M in program mode
J1
Interrupt
Selection
1-2
Connect GS1500M interrupt to Tower IRQ_G (B56)
3-4
Connect GS1500M interrupt to Tower IRQ_E (B58)
5-6
Connect GS1500M interrupt to Tower IRQ_C (B60)
7-8
Connect GS1500M interrupt to Tower IRQ_A (B62)
J3
SPI/UART
Selection
1-2
Select SPI as serial interface
2-3
Select UART as serial interface
J4
GS1500M Reset
Selection
1-2
Connect GS1500M Reset to Tower GPIO9 (A9)
2-3
No connection
J5
1-2
Connect GS1500M Reset to Tower RSTOUT (A63)
2-3
Connect GS1500M Reset to Tower GPIO1 (B21)
J7
Slave SPI Port CS
Selection
1-2
Connect Tower SPI0_CS0 to slave SPI CS on GS1500M
2-3
Connect Tower SPI0_CS1 to slave SPI CS on GS1500M
J8
UART Routing
Selection
1-2
Connect GS1500M UART0 to on-board RS232/DB9
2-3
Connect GS1500M UART0 to Tower System
J9
Master SPI Port
CS Selection
1-2
Connect Tower SPI1_CS1 to master SPI CS on GS1500M
2-3
Connect Tower SPI1_CS0 to master SPI CS on GS1500M
J11
Power Isolation
and Current
Measurement
ON
Connect GS1500M power supplies to the 3.3V supply
source
OFF
Isolate GS1500M from power supplies. J11 can be used to
measure the energy consumption of the VBAT, VDDIO,
and EN_1V8 supplies to the GS1500M.
J14
RS232
Transceiver
Force-off
ON
RS232 transceiver operates in normal mode
OFF
RS232 transceiver forced off
J15
UART CTS
Isolation
ON
Connect UART0_CTS from GS1500M to RS232 transceiver
OFF
Disconnect UART0_CTS from RS232 transceiver
Note
: J3 jumper is not applicable when running Serial-to-Wi-Fi firmware. The firmware version loaded
on the module determines the interface used. This jumper is relevant if using IP2WIFI.
The TWR-K60N512 should be set to its default settings as described in the TWR-K60N512 Quick Start
Guide and User’s Manuals.
Assemble your Tower system consisting of the TWR-K60N512 and TWR-WIFI-GS1500M. Be careful to
match the Primary edge of each module to the Primary (or Functional on older systems) TWR-ELEV
module. Connect a USB cable between your development PC and the TWR-K60N512 PWR/OSBDM USB
connector.
A wireless access point will be required. Setup the wireless access point as desired and take note of
the SSID and any security setting (if enabled). Ensure that your development PC can connect to the
wireless access point.
