My Work Projects
Columbia
This is my very First project at Symmetricom
DesignCircuit
DesignFPGA
Bringup Ptototype programming product binary
../PDF/Tahiti.pdf
It is the Grand Mater PTP Clock upon which Symmetricom proud of as
pioneer in new PTP Technology(Precise Time Protocol at nano sec) vs NTP(
Network Time Protocol at milli sec
)
Both HW & SW Design with product arch for easy
development/ maitenance
HW Circuit Design
FPGA Design with PTP frame detector in generating PPS(Pulse Per Second) for Oscillator discipline
SW x86 Embedded Linuxusing Kontron Single Board Computer
Kernel config
Minimal Root File System with only BusyBox Bash and telnet
Bring up prototype
Bring up embedded Linux over network
using TFTPD to load kernel +driver
using NFS-kernel-server to test Root File System over Network
FTM.pdf
Design circuit with new Opto Coupler with fraction price of obsolete one very hard to find and pricy for better profit
Treadstone_HW_1.pdf
Life span of x86 is only 5 years sothe above Tahiti was require to use Power PC MPC 8272 for longer span
HW Design circuit and FPGA
SW embedded Linux for Power PC
uboot for bootloader
Kernel config
Minimal Root File System with only BusyBox Bash and telnet
Bring up prototype
Bring up embedded Linux over network
using TFTPD to load kernel +driver
using NFS-kernel-server to test Root File System over Network
ES24D1B_Board.pdf
Circuit design
FPGA Design to detect start of digital phone frame to store
phone data into RAM for PowerPC to process for Synchronous Digital
Telephony with 12 of 12-pckt digital phone lines so 144 phone
connections
Embedded Bare Metal SW Development for Motorolla 68331 on ES24B1
Bring Up Prototype
Production Test and Product Motorolla S-Record programming for Production Dept
S3D1_Board.pdf
Circuit design
FPGA Design with SONET for ASynchronous Digital Comm for Voice over IP
Embedded SW Development using for Motorola 69331
Bring Up Prototype
Production Test and Product Motorolla S-Record programming for Production Dept
.