J-Tech Engineering - Cirrus Logic Related Projects

Home & Office Security Monitoring Platform: Custom platform based upon the CL-PS7500FE processor from Cirrus Logic. Production units feature a standard EDO DRAM SIMM, a FLASH SIMM, an on-board 8MB Intel strata-flash, serial and parallel ports, ATA interface, fax/modem, 10BaseT Ethernet, keypad, video interface with support for four NTSC inputs including an on-board video codec, high-powered switching regulators for charging and maintaining a lead-acid battery (UPS), multiple zone trip inputs, and multiple alarm outputs.

EP7309 Evaluation Board: Reference platform for the Cirrus Logic PS7311/EP7309 RISC processor (ARM7TDMI core), including interfaces to keyboard, multiple LCD displays including high-voltage CCFL backlight inverter supply, touch screen overlay, USB port, 10BaseT ethernet, 16Mbytes DRAM, 16Mbytes flash, 32Mbytes NAND flash, SmartMedia interface, RS-232 ports, IrDA, parallel port, ATA Port for CD-ROM drives, 16-bit stereo sound, and local switching supplies. This board also features a module site for mounting different processors in different packages (such as BGAs) on the main board.

CRD7209 MP3 Evaluation Board: Reference platform for the Cirrus Logic EP7209 RISC processor (ARM7TDMI core), including interfaces to custom LCD display, USB port, 16Mbytes NOR flash, 32Mbytes NAND flash, SmartMedia interface, RS-232 port, 16-bit stereo sound, and local switching supplies. This board was intended as a low-cost example of an MP3 Player.

EP7209 Evaluation Board: Reference platform for the Cirrus Logic PS7211/EP7209 RISC processor (ARM7TDMI core), including interfaces to keyboard, multiple LCD displays, touch screen overlay, PCMCIA interface, USB port, 10BaseT ethernet, 16Mbytes DRAM, 16Mbytes flash, 32Mbytes NAND flash, SmartMedia interface, RS-232 ports, IrDA, parallel port, 16-bit stereo sound, and local switching supplies. This board also features a module site for mounting different processors in different packages (such as BGAs) on the main board.

Software Port of ARM Daemon Debug Monitor with additional flash programming interface for customer's proprietary Cirrus Logic CL-PS7500FE (ARM710C core) based platform. The flash suite was for burning Intel Strataflash.

CL-PS7500FE Evaluation Board: Reference platform for the Cirrus Logic CL-PS7500FE RISC (ARM 710C core) processor, including interfaces to keyboard, mouse, serial ports, IrDA, parallel port, ISA slots, 10BaseT ethernet, VGA/LCD/NTSC displays, modem, 16-bit stereo audio and local switching power supplies.

CL-PS7500FE VGA Driver Software: Produce interface software to initialize the VGA controller of the CL-PS7500FE processor and configure it for operation at 640x480 resolution in 16-bit colour mode.

Web Browser Telephone: Full-featured telephone containing a RISC (CL-PS7110/7111, ARM710a core) and DSP (TMS320C50/C548) processor architecture with a cold-cathode florescent back-lit LCD display (including back-light inverter), touch screen overlay, Smart Card interface, Mini-Card interface and full keyboard. The LCD in the unit is 320x240, 16 shades of grey. Inter-processor communication was accomplished via a dual-port RAM in the initial version of the telephone, but was later migrated to use the host port interface found on the TMS320C548.

CL-PS7500FE LCD Interface Module: Interface adaptor for connecting the VGA interface of the CL-PS7500FE processor to an Optrex DMF50840 320x240 grey scale LCD. The design included a high-voltage switching inverter for operating the CCFL backlight of the display, as well as a lower voltage supply for biasing. This project was supplied complete with driver software to initialize the VGA controller of the 7500FE processor, generate test patterns, and adjust the contrast and brightness of the display.