- Newracom™ NRC7292 WiFi HaLow™ SOC (IEEE 802.11ah draft 8.0 compliant)
- Qorvo™ RFFM6901 front-end
- IPEX/U.FL antenna connector
- mikroBUS™ M-size form factor
- Connectors for UART and mode select
- 3× LED
This module is following MikroBUS standard. Please see the page 12 of MikroBUS official document: mikrobus-standard-specification-v200.pdf
|POWER||When the module is powered up, this GREEN led turns on|
|TX||ORANGE led, controlled by GPIO 02|
|RX||RED led, controlled by GPIO 03|
|NRC7292 GPIO #||Default||Pin Number||Description|
|02||UART2 RTS , connected to LED:TX|
|03||UART2 CTS , connected to LED:RX|
Known NRC7292 GPIO's range is [0..31]
NRC7292 has 4 UART channels. We have two available in this PiHAT device.
|UART2||RX2, TX2||available for STANDALONE MODE|
|UART3||4-pin UART header||for DOWNLOAD MODE use|
NRC7292 has 3 modes: HOST MODE, STANDALONE MODE, and DOWNLOAD MODE
In this mode, the target device will act as a SPI slave device. The host device (ex: Raspberry Pi) need a proper driver to bring it up and controll it.
In this mode, the target device doesn't need external drivers. It will be up and running by itself while power on. Since it's self-running device, it required a built-in firmware to define its routines and behaviors.
Other devices can talk to this device throungh a UART interface, send commands and receives data with it.
This mode is for developers to upload firmware to this target device, so that it can be properly running in STANDALONE MODE.
There is an official document introduce how to utilize this mode, please see reference below:
For more details, please read the upstream document UG-7292-004-Standalone SDK.pdf , page 18, chapter of "3 How to download compiled binaries"
How to switch modes
|Standalone||M0 ->||0||0||M2 ->||1||Short (M0,GND) and (3v3,M2)|
|DOWNLOAD||1||1||<- M1||0||Short (M1,3v3)|