Description Features: IC feature page. Main features: Wifi embedded 160Mhz ARM M3 448KB RAM, rich interface and great extensive capability Run UC-OS II system NL6621M is a SOC of high integration, dedicated to wireless LAN products of high data throughput and low cost. It integrates MCU，MAC，1T1R baseband and RF transceiver with amplifier onto one chip. NL6621M supports 802.11b/ g n and Wi-Fi direct（SDIO network card mode），BSS STA，soft AP，WiFi protection setup. Also it supports WMM-PS and WPA/ WPA2 security protocol. NL6621M can serve as slave controlled by main processor, or independent WLAN device needing no other processors. The general purpose interfaces it supported include QuadSPI，standard SPI，I2C，UART，GPIO，I2S audio and PWM audio. NL6621M can be directly connected to plentiful peripheral equipment such as sound box，pick-up head，flash memory and LCD, etc. Plentiful internet protocols such as TCP/ IP, UPD and HTTP, etc. have been integrated to nl6621m. With high-performance transmission over radio, plentiful interfaces and protocols, NL6621M is a best choice for monolithic chip solution such as wireless audio, wireless video, wireless wisdom household and wireless medical treatment, etc. Secondary development: Complete open source, Standar_SDK，Wifi-Uart_SDK，Apple Homekit_SDK，Gizwits_SDK (mostly in Chinese for now) SDK mostly in C, and complied in Keil. Default firmware is AT commands SoC: The basic frequency can be configured as: 160M，120M，80M，40M； 448KB RAM（CODE RAM is 192K）to be used by WLAN and application custom-built by client Wi-Fi network operation mode: 1.BSS STA 2.Soft BSS AP 3.WIFI direct（SDIO net card mode） 4.Ad hoc 5.DirectConfig Quick configuration by one key Speed Protocol Supported: 1.802.11b: 1，2，5.5，11Mbps 2.802.11g: 6，9，12，18，24，36，48，54Mbps 3.802.11n: 6.5Mbps-65Mbps, 7.2Mbps-72.2Mb Interface: UART, which can be used as high speed data or control interface I2C, which can externally connect EEPROM storage chip SPI interface, which can externally connect display module of SPI interface 32 GPIO interfaces at most (but NOT all lead out on this one) Integrate 2 channels of PWM 1 hardware timer and 1 hardware watchdog Application area Smart security guard Internet household appliances Smart toys WIFI lamp Smart card terminal WIFI sound box Basic setup and wiring: Use only a USB to TTL, are 3.3V, GND, UTXD, URXD, the power module can work normally. The default baud rate is 115200. Documentation.
