HL/RC Module Evaluation Kit Shield

Overview

Welcome to the HL78 module getting started guide. This guide will help you set up the evaluation kit (eval kit) for sending AT commands to the HL78 module and initiating data transmission.

More information about the shield can be found at the HL/RC Module Evaluation Kit Shield guide website [1].

Pins Assignment of HL/RC Module Evaluation Kit Shield Shield

Shield Connector Pin	Function
CN403 alias	UART 1 (with CTS and RTS pins)
CN303 alias	SPI / UART 3
CN1000 alias	GPIO Test Pins
GPIO6 CN1000_3	LOW POWER MONITORING
VGPIO alias	Indirect indicator of hibernate mode entry/exit
RESET CN1000_12	RESET SIGNAL
WAKE-UP CN1000_8	SPI / UART 3

Please refer to the website for more information about HL/RC Module Evaluation Kit Shield Shield setup. .. _HL/RC Module Evaluation Kit Shield guide website:

Checking Your Basic Configurations in PuTTY

Before trying to set up a wired connection between the board and a host MCU, it’s a good idea to first go through this list of basic AT commands over a USB COM port on a PC. For reference, you can find all the AT commands for the HL78xx modules in the Source.

Requirements

This shield can be used with any boards which provides a configuration for header connectors and defines node aliases for UART, SPI and USB interfaces (see Shields for more details).

Programming

Set --shield swir_hl78xx_ev_kit when you invoke west build. For example:

# From the root of the zephyr repository
west build -b st/nucleo_u575zi_q --shield swir_hl78xx_ev_kit samples/drivers/modem/hello_hl78xx