The invention provides an FPGA embedded FLASH controller and an electronic device. The FPGA embedded FLASH controller is realized based on logic resources of an FPGA. The controller comprises an interface module, a FLASH logic control module and a plurality of FLASH function modules. The interface module is connected with a main device, and the FLASH function modules are in one-to-one correspondence with different types of FLASH memories and are connected with the corresponding types of FLASH memories. According to the technical scheme provided by the invention, dynamic configuration can be carried out according to different application scenes by utilizing the characteristic that the FPGA can be repeatedly programmed so as to be compatible with different types of FLASH memories. Accordingto the design, the expansibility and usability of an embedded or externally connected FLASH memory of the FPGA are improved; the complexity of design and application of an embedded or externally connected FLASH memory of the FPGA is reduced, the application flexibility of FPGA logic resources and FLASH storage resources is improved, and the development efficiency and speed of products are improved.

FPGA embedded FLASH controller and an electronic device

The invention discloses a high-capacity fast NandFlash storage implementation method based on a software and hardware combination mode. The method comprises the following steps: optimizing a read-write mode of NandFlash according to the characteristics of the NandFlash in combination with the characteristics of double cache blocks of a controller, and controlling a plurality of NandFlash blocks byadopting a parallel read-write mode; in the aspect of implementation, analyzing the time sequence and the command of a local bus controller of a processor, remapping part of idle physical address space under the control of a local bus in an FPGA chip, and achieving composite chip selection of multiple NandFlash chips in the FPGA chip; modifying a software driver such that a serial access commandof the modified software driver to a single-chip memory is changed into alternate access to two NandFlash chips; and by utilizing the waiting time of the NandFlash chip access, carrying out the read-write access to the cache blocks alternately. The method can effectively improve the read-write speed of a NandFlash memory.

High-capacity fast NandFlash storage implementation method based on software and hardware combination mode

The utility model provides a LCD screen test control circuit This LCD screen test control circuit includes FPGA module, MCU module, DC -DC, crystal oscillator module, interface module and nand flashmodule, the FPGA module respectively with the MCU module, the nandFlash module, DC -DC, crystal oscillator module and interface module connect, DC -DC is the FPGA module, MCU module and nand flash module provide operating voltage, crystal oscillator module provides operation clock for the FPGA module, the test image data information that the MCU module was sent is received to the FPGA module, to test image data information storage in nand flash module, and test the LCD screen of being connected with interface module according to test image data information The problem of the test demand of present high resolution LCD screen unable satisfy and test control circuit test kind single is solved

LCD screen test control circuit

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LCD screen test control circuit