As the National Day approaches, the editor quickly crawls up to make a splash, and everyone must not forget me! Let me tell you quietly, we still have a big move before the festival, friends, please stay tuned!!!
With the accelerated development of the Internet of Things, deep sensing, intelligent interaction, and secure connections are all of great concern to users, OTA, UI, AI algorithms are driving the increasing demand for high-capacity FLASH. In the past, users had no more economical means than to choose higher-frequency, richer-resource, and more expensive MCU products for replacement; now, even for cost-sensitive products, FM33A0XXEV paired with appropriate flash memory can achieve a good user experience.
Today, the editor will highlight the FM33A0XXEV series MCU which provides a four-wire QSPI interface, greatly simplifying the layout of external memory and accelerating the access of external data. The system’s high efficiency and flexibility are no longer limited by on-chip storage capacity, and users do not have to pay for other redundant peripheral resources, truly achieving system economy.
Micro Class:
QSPI stands for Quad SPI, representing 4 line SPI, it is an extension of the SPI interface.The QSPI protocol is a protocol that adds a queue transfer mechanism based on the SPI protocol, launched as a queue serial peripheral interface protocol.
Using this interface, users can transfer a transmission queue containing up to 16 8 or 16 bit data at once, once the transfer is started, there is no need for CPU intervention until the transfer ends, greatly improving transfer efficiency.
Through Quad SPI interface, MCU can effectively expand high-speed memory, and can directly fetch instructions from external memory using XIP mode, the FM33A0XXEV series MCU SPI interface supports driving modes for dot matrix LCDs, making the font library and image access of dot matrix LCDs more convenient when paired with QSPI FLASH.
Take the fetal heart monitor that every expectant mother has, for example, the Cortex-M0 MCU paired with QSPI FLASH, the human-computer interaction interface can be designed to be more beautiful, and a large amount of historical data can be stored locally. Facing the demand for networking, it can also back up programs for firmware upgrades through external memory. MCUs with QSPI interfaces match this application need very economically, greatly improving the efficiency and flexibility of the system.
Conclusion
Fudan Microelectronics is a well-known low-power MCU design manufacturer in China, with a professional technical team and a complete quality management system. Since its establishment, the company has always adhered to “providing customer-satisfactory products and services“ as the basis for the company’s survival, and has long been committed to the design and development of IC products in the fields of the Internet of Things, smart home, instrumentation, industrial control, and consumer electronics, providing customers with comprehensive solutions and technical services. We are committed to being customer-centric, creating more value for partners through continuous high-quality service and a fighting spirit.
(Image source from the internet, please delete if infringing)
