Memory Design And FPGA Verification Based On Ink Cartridge Control IC

Printers, photocopiers and drawing equipment play an important role in all aspects of today’s office automation, engineering drawings, financial accounting, etc. But a lot of printer manufacturers use ink cartridge control IC ASIC-based technology formed the technical barriers, then to achieve monopoly sales of ink cartridge. In order to get rid of printer manufacturers use ink cartridge control IC imposed monopoly, the subject has been researched and developed ink cartridges control IC, this paper introduced it research and development process which from the design angel of internal memory in the ink cartridge control IC. Since the update speed of ink cartridges control IC is quickly, so this paper used FPGA technology to verify design of ink cartridges control IC for accelerating speed to market. IC design verification process is an important procedure in design of IC, this paper introduced it detailly. The main work of this paper as follows:1. Introducing EEPROM, FLASH, SRAM, FRAM and other memory brieflyg from the classification of memory, then focused on the erase and write working principle analysis of electrically erasable memory. In the IC application design, usually using memory IP providing by third-party, so this paper have have introduced IP technology.2. Before the IP embedded into the design, you need to configure the appropriate digital peripheral circuits and key analog circuits. This paper presents the two parts design of the circuit and the simulation.3. Memory of the ink cartridge control IC needs to store real-time data during ink cartridge communicating with the printer. Printer manufacturers design ink cartridges control IC using FRAM memory as it store structure. The manufacture technology of FRAM is strictly confidential in the foreign foundry, and FRAM unable industrial production in the country, so the manufacture of FRAM must go abroad, while its manufacture cost is also high. In order to complete the real- time data store of ink cartridge control IC memory, while reducing production costs, this paper describes the use of FLASH memory IP provided by third parties and SRAM memory combinations to replace FRAM storage structure and achieve real-time storage.4. In order to accelerate the time of production to market, this paper used the Xilinx FPGA to verificate the design of ink cartridge control IC. Since the ink catridge control IC design is based on ASIC method, it’s need to convert the ASIC module into FPGA module before FPGA verification procedure, so this paper also introduced this conversion process in detail. It’s providing some reference value for this people who need to do the same kind of conversion work.This paper have achieved the replacement of the FRAM storage structure in original ink catridge by using FLASH and SRAM combination; designed of the peripheral circuit of the memory in ink cartridge; Used FPGA to complete the verification.This paper have completed the design task of this project; reached preliminary requirements design of the ink cartridge control chip.