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OTHER SKILLS

WORK EXPERIENCE

2003 to 2010
Confidential,

Developed MAC driver code for fast ethernet and Gigabit Ethernet switches, FPGAs, CPLDs and other devices on multiple hardware platforms
Programmed five port Ethernet switch for MAC and VLAN switching
Implemented driver code for various Ethernet PHYs.
Adapted third party circuit emulation code for T1 interface to ARM7 based platform.
Experience with GNU tools and EPI JTAG ICE for ARM7.
Implemented XML GUI pages and SNMP interface for adding/removing SNMP V1/V2 trap hosts .
Ported RADIUS library code from PPC based platform to ARM based platforms.
Implemented code for Access Control List feature
Helped add support for GNU debugger stub for ARM9/ARM7 platforms
Implemented code for power supply monitoring subsystem

1998 to 2002
Confidential,

Created boot ROMs for PSOS+ operating system
Ported and debugged Broadcom SDK code from VXWORKS to PSOS+ V2.50 for BCM5616 Ethernet Switch using Tundra PowerSpan II and internal MPC8250 PCI bridges.
Implemented PHY interfaces for Broadcom BCM52XX PHYs.
Modified and debugged BSP ethernet device drivers for MPC8260 to switch port interface.
Implemented device drivers and kernel code interfaces for (AMD/Fujitsu)FLASH memories, compact flash disks(IDE), I2C and SPI based EEPROMs, SCC port(UART and Ethernet modes), HDLC controller, FPGA and SONET/GBE chipsets(AMCC) for use by hardware and software groups.
Participated in fixing hardware problems for optical transmission boards and inter-shelf communications boards.
Implemented code to validate signal degrade and signal fail hardware functionality for SONET interface.
Ported and upgraded pSOS+ kernel code as part of platform group..
Evaluated software aspects of Agere Network processor for use with product.
Assisted in selection of OS as replacement to pSOS+, evaluated VXWORKS/TORNADO platform.
Experience with Wind River and HP JTAG ICE units, logic analyzers and oscilloscopes.

1996 to 1998
Confidential,

Adapted and debugged CDMA call stack software for mobile phone hardware and mobile phone reference design boards.
Assisted in porting of bootloader, OS, and device driver software for FLASH, CODEC, KEYPAD and LCD from FR30 based platform to ARM7 based platform.
Participated in board bring up for form-and-fit and reference design boards.
Designed and implemented flash memory storage subsystem for dual banked flash part.
Helped modify RF device driver code parameters for automatic gain control, low noise amplifier control and high power detection control loop.
Designed and implemented hardware simulator using ARM7 virtual machine software to allow CDMA software to be developed prior to arrival of hardware platform.
Responsible for debug and release of software baselines using ClearCase configuration management system.
Experience with Lauterbach ICE and JTAG ICE units for ARM7.

1995 to 1996
Confidential,

Maintained portions of call processing software for MCI dialing plans - ISDN, SS7 and MF/DTMF trunks.
Helped implement MCI Flexible Service Area Calling and Automatic call throttling features.

1994 to 1995
Confidential,

Utilized Shlaer-Mellor OOD methodology and SES ObjectBench case tool to development software for wireless remote digital terminal.

Involved in design and debug of RF statistic reporting subsystem for Motorola 56156 DSPs.
Designed and implemented layer 2 portion of handover software for WACS standard implementation.

1992 to 1994
Confidential,

Implemented device drivers for T1 chipset(IP over clear channel), DMA controller, CODEC, UARTs, and proprietary hardware used in 80816/80386 embedded processor environments using C/C++ and Rumbaugh OOD methodology.
Modified and debugged ISDN call processing protocol stacks for CCITT Q.931 and Q.921(LAPD)
Worked on GES radio port controller
Debugged TCP/IP stack code.

1985 (part time), 1989 to 1992 (full time)
Confidential,

Designed and implemented software for PC-based industrial process monitoring and control software.
Implemented embedded 80186 based software for RS-232/RS-485 packet-switched subsystem for use with programmable logic controllers.

EDUCATION: BSCS from Chico State University