Roving Networks WIFLY GSX Uživatelský manuál stáhnout pdf (Strana 52)

www.rovingnetworks.com Version 1.0r 9/21/2012 52

RN-WIFLYCR-UM

NOTE: To set the GPIO pins as inputs or outputs instantly, use the set sys mask 0xABCD 1 command, which does

not require a reboot.

The RN-134 evaluation board’s LEDs are connected to GPIO4 - 6. To disable the LEDs, enable the alternative functions of

the LEDs (use the set sys iofunc 0x7 command).

NOTE: You can turn off the yellow, red, or green LEDs. The RN-134 board’s blue LED is the power indicator and

cannot be turned off.

The RN-174 evaluation board’s blue LED is connected to GPIO7, which is output by default. The board does not drive this

because GPIO7’s default power-up state is low.

The get sys command shows the setting of the GPIO mask as shown in the following example:

<2.21> get sys

SleepTmr=……

IoFunc=0x0

IoMask=0x21f0

Figure 10 shows the bits corresponding to the GPIO pins and Table 22 shows the GPIO pin usage, their default state, and

functionality.

Figure 10. GPIO Pin Bitmask

14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

GPIO0

GPIO1

GPIO2

GPIO3

GPIO4

GPIO5

GPIO6

GPIO7

GPIO14

GPIO13 UART RTS

GPIO12 UART CTS

GPIO11 UART RX

GPIO10 UART TX

GPIO9

GPIO8

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 95 96

Žádné komentáře

Roving Networks WIFLY GSX Uživatelský manuál Strana 52