Wifi And Bluetooth Module - Cherry RINGNECK SOM-PX30-uQ7 User Manual

12.4.5 Companion Controller 2
Controller features are implemented by emulating standard ICs. Feature configuration is provided in a table
below.
Feature
RTC
Temperature sensor and fan controller
See also Section 10.2 Companion Controller 2 (ATtiny).
12.4.6 Ethernet PHY
The Texas Instruments DP83825IRMQR is connected to the CPU via RGMII and MDIO. Further connections are
shown below.
PHY signal Connected to
RESET CPU pin GPIO3_B0
MDIO CPU pin GPIO2_A7
MDC CPU pin GPIO2_B1
LED1 Qseven GBE_LINK1000 and GBE_LINK100 and GBE_LINK (tied together)
LED2 Qseven GBE_ACT

12.5 Wifi and Bluetooth module

The WiFi and Bluetooth are part of the ESP32 PICO MINI 02U module on the RINGNECK SOM-PX30-uQ7 board.
The antenna connector on the module is w.FL type. The firmware running on the ESP32 is flashed in its internal
memory and unlike most wireless modules, does not require files to be present in the root filesystem. This also
means that a firmware upgrade is slightly more complex since it needs to be flashed (see Section 8.3 Flashing
the wifi firmware).
The following pins are used for boot and reset.
v1.3.1
Page 48
CPU Connection
I2C
I2C
Fig. 12.1: WiFi and Bluetooth module
Emulated IC Qseven Pins
ISL1208 none
AMC6821 FAN_TACHOIN, FAN_PWMOUT
Linux GPIO #
104
71
73