1.Design SSD/eMMC firmware (control the flow of NAND flash command) 2.Understand the NAND flash spec. 3.Understand how to use the LDPC of SSD/eMMC controller. 4.Coding the flow for flash ip of SSD/eMMC controller to issue commands to NAND flash. (i.g. reset, read id, read status, erase, program, read, get/set feature…etc.) 5.Coding the flow of read retry. 6.Coding the initial settings of flash ip of SSD/eMMC controller. 7.Measure NAND flash signals for debug by LA. 8.Write design documents based on module functions and firmware flow. 9.Design test cases on the FPGA and verify various functions with ASIC colleagues. Item: Flash ip, I2C, SPI (include autoload), UART. Controller I've been responsible for: (1).Ruikuan Agate-s (2).Ruikuan Sapphire (3).Phison PS8229

Assist customers to solve problems. Coding and debugging MCU. PCBA basic rework jumper and soldering. Study professional themes and sharing. Establish a good relationship with our customers.

Coding and debugging MCU. PCBA basic rework jumper and soldering. Test the product under development. Product: Car meter.

Coding and debugging MCU. Design GUI programs by C#. PCBA basic rework jumper and soldering. Write product Chinese and English operation manual. Troubleshooting of company computers and networks. Product: Motor start detection and CbM(Condition based Maintenance).

Coding and debugging MCU. Develop a protocol between each mcu to transmit commands. Design GUI programs by C#. Smplifies highly repetitive work by AutoHotKey. Maintain company network, mail server and computer software and hardware. PCBA basic rework jumper and soldering Product: AR glasses, Medical prosthetic eyes, FFT calculation and national defence case of NCSIST. LoRa Product: Green energy bus stop, Wireless file transfer, Campus Security Wireless Alert, Wireless smart meter, Safety watch warning for the elderly, Wireless smart meter , GPS positioning transmission, Wireless image surveillance and four-way antenna.

Use VBA to simplify administrative tasks.