8.6.12
Wi‑Fi
®
RF module
A Wi‑Fi
®
module Inventek ISM43340-M4G-L44-10CF (802.11 b/g/n compliant) is supported on the STM32H7B3I-
DK board. This module is an embedded (eS-WiFi) wireless Internet Connectivity device and consists of an Arm
®
Cortex
®
-M4 STM32 host processor, an integrated antenna (or optional external antenna) and a Cypress Wi‑Fi
®
device. The module uses SPI interface, as the corresponding firmware (for SPI capability only) is downloaded on
the ISM43340-M4GL44-10CF Wi‑Fi
®
module. The Wi‑Fi
®
module requires no operating system and has a
completely integrated TCP/IP stack that only requires AT commands to establish connectivity for a wireless
product. The main features of the Inventek ISM43340- M4G-L44-10CF module are:
• Based on CYW43340 Cypress Leading Edge Radio Device
• Includes STM32F405 ST Cortex M4 Microcontroller
• Hardware supported by Cypress WICED SDK 3.5.2 or later
• IEEE 802.11b (DSSS 11 Mbit/s)
• IEEE 802.11g (OFDM 54 Mbit/s)
• IEEE 802.11n (OFDM 72.2 Mbit/s - single stream w/20 MHz, Short GI)
• IEEE 802.11i (Security)
– WPA (Wi-Fi Protected Access) – PSK/TKIP
– WPA2 (Wi-Fi Protected Access 2) – PSK
• 5 GPIOs for SPI or ADC (SPI uses ADC pins)
• Low power operation with built-in power modes
• EMI/EMC Metal Shield for best RF performance in noisy environments and to accommodate for lower RF
emissions/signature for easier FCC compliance
• FCC/IC/CE compliance certification
Figure 15. Wi‑Fi
®
module (Top view)
UM2569
Board functions
UM2569 - Rev 1
page 23/54
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