SIMcom SIM7022-EVB Cellular Module User Guide

: June 6, 2024
: SIMcom

Table of Contents

User Guide
- Test Points
Operation Method
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

SIMcom SIM7022-EVB Cellular Module

User Guide

Table 9: switches and buttons

Number	Name	Description
SW101	POWER_KEY	EVB power switch
SW102	RESET	Module reset button
SW103	WAKEUP	Module wake-up button
SW1	DOWNLOAD	Firmware upgrade switch

When the serial port baud rate is less than or equal to 9600bps, there is no need to use the WAKEUP button of EVB to wake up, and the module can be directly awakened by sending AT commands through UART1. When the baud rate is greater than 9600bps, you need to use the WAKEUP button to pull down WAKEUP to wake up the module. For details, please refer to the document [1].

Test Points

There are four sets of test points J101, J105, J106, J107 on SIM7022 EVB. The details of the test points are

as follows.

The pin definition of position J101 is shown in the figure below.

Table 10: Test point description of J101 on EVB

Position

The pin definition of position J105 is shown in the figure below.

Table 11: Pin description of location J105 on EVB

Position| Test point| Signal description| Pin number| Pin name
---|---|---|---|---
J105| J105_PIN1| VEXT| 24| VDD_EXT
J105_PIN2| SWD_CLK| 25| IIC_SDA
J105_PIN3| GND| –| –
J105_PIN4| SWD_DIO| 26| IIC_SCL
J105_PIN5| ADC| 9| ADC0
J105_PIN6| GND| –| –
J105_PIN7| RI| 20| RI
J105_PIN8| TXD| 18| UART1_TX
J105_PIN9| NET| 16| NETLIGHT
J105_PIN10| RXD| 17| UART1_RX
J105_PIN11| GND| –| –
J105_PIN12| UART2_RX| 28| UART2_RX
J105_PIN13| MISO| 3| SPI_MISO
J105_PIN14| UART2_TX| 29| UART2_TX
J105_PIN15| MOSI| 4| SPI_MOSI
J105_PIN16| GND| –| –
J105_PIN17| SCLK| 5| SPI_SCLK
J105_PIN18| DBG_TX| 39| DBG_TXD
J105_PIN19| CS| 6| SPI_CS
J105_PIN20| DBG_RX| 38| DBG_RXD

The pin definition of J106 is shown in the figure below.

Table 12: The pin description of J106 on EVB

Position	Test point	Signal name	Description
J106	J106_PIN1	5V	EVB 5V power supply test point
J106_PIN2	GND	GND

The pin definition of J107 is shown in the figure below.

Table 13: The pin description of J107 on EVB

Position	Test point	Signal name	Description
J107	J107_PIN1	RESET	Module reset signal
J107_PIN2	GND	GND
J107_PIN3	WAKEUP	Module wake-up signal

1. For the related functions of each pin of the module, please refer to document [1]

Operation Method

Module Boot

Module Power-on Operation

The module boot method is as follows

Insert the Micro USB into the USB connector J103 (or J104)
Turn the switch SW101 up to the on state, and LED101, LED102, and LED103 will light up.
If the module is successfully registered to the network, the flashing frequency of LED101 will slow down, otherwise LED101 will keep flashing fast. When the module enters PSM mode or the module is in shutdown state, LED101 will go out.

The module shutdown method is as follows:

Turn the switch SW101 down to the off state, the module will automatically shut down, and LED101, LED102, and LED103 will go out.
The module can be powered off by the AT command. When the module is in the power-on state, input the AT command “AT+CPOF” and the module will automatically power off. More details. Please refer to SIM7022 series _AT command.

Driver Installation

USB-to-UART Driver Installation

The following connection can get the USB to UART driver.

https://www.silabs.com/products/development-tools/software/usb-to-uart- bridge-vcp-drivers

After the driver is successfully installed, the following virtual serial port will appear, COM95/COM93/COM94

Table 14: USB to UART ports

Reference Number| Interface type| Port number| Serial port| Function description
---|---|---|---|---
J103| ECI| COM93| Enhance UART| Used for AT communication, data transmission and firmware upgrade
SCI| COM94| Standard UART| /
J104| /| COM95| USB TO UART Bridge| Used for software DEBUG

Firmware Upgrade Process

Before updating the firmware, please contact the SIMCom technical support team and the supplier to obtain the correct download tool and firmware upgrade file.

The firmware update method of the module is shown below

Insert the Micro USB into the USB connector J103 (AT/DL UART), turn up SW101, SW1 to ON state
Open the EiGENCOMM_MultiDownload tool and follow the steps.
(1) Check the “EraseALL” option.
(2) Select bootloader/system/calibration in turn and load the corresponding bin file.
(3) Select Enhanced port.
(4) Click “DL” and wait for the software to be erased.
Erased the software.
After completing the software erasing, enter the software download interface
After entering the software download interface, press the “SW102” button and wait for the software to download.