Table of Contents
DNS-300 internal photos
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Serial connector
DNS-300 has soldered 5 pin COM-TTL connector (JP1) like DSL-G604T. To use it with PC you need a RS-232 ↔ TTL adapter.
I’ve used schema from McMCC site: http://mcmcc.bat.ru/dlinkt/data-cable/scheme.jpg
I’ve disconnected pin 1 from RS-232 on this scheme to use it under WinXP HyperTerminal.
Also you can use USB to serial cable described here: How to connect USB only equipped PC to Serial Console of DNS-300
Serial settings: 19200, 8 bit, no parity, no hardware sync.
JTAG
It seems DNS-300 has unsoldered 20 pin JTAG (JP6) on board. Info about this JTAG connector can be found here: http://hri.sourceforge.net/tools/jtag_faq_org.html#_Toc63218717
JTAG on DNS-300 has incorrect pins numbers than in JTAG FAQ
Hardware documentation links
| CPU | SL3316 | http://www.storlinksemi.com/products-sl3316.htm | |
| Flash | TE28F640 | ||
| GPIO Extender | PCA9555 | http://www.semiconductors.philips.com/pip/PCA9555.html | |
| EMAC→PHY conv | AC101LKQT | http://pdf1.alldatasheet.com/datasheet-pdf/view/80500/ETC/AC101L.html | local copy |
| Power Controller | RT9206 | http://www.richtek.com/www/Docs/DS9206-09.pdf | |
| DDR RAM (256M x 16) | nt5ds16m16cs | http://www.nanya.com/attach_file/NTC-256M-C-DDR.pdf |
