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tiacx1xx [2010/08/09 03:07] steve_m created |
tiacx1xx [2010/08/10 00:45] steve_m picture, signal table |
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The TI ACX100/ACX111 is a already somewhat outdated 802.11 wireless LAN chipset, which is based on a ARM7TDMI core. | The TI ACX100/ACX111 is a already somewhat outdated 802.11 wireless LAN chipset, which is based on a ARM7TDMI core. | ||
+ | There is an [[http://acx100.sourceforge.net/|open source project]] which develops a Linux kernel driver. | ||
+ | |||
+ | ^ Chip ^ ACX100 ^ ACX111 ^ | ||
+ | | TI name | TNETW1100 | TNETW1130 | | ||
+ | | standard | IEEE802.11b+ | IEE802.11g+ | | ||
+ | | speed | 22Mbps | 54Mbps | | ||
+ | |||
+ | For a full list of devices see [[http://acx100.sourceforge.net/matrix.html|here]]. | ||
+ | |||
+ | ====== JTAG Port ====== | ||
+ | |||
+ | When taking apart a Level1 WBR-2401B router, I noticed that the used ACX100 CardBus-card has a 6-pin header. | ||
+ | |||
+ | {{:acx100_jtag.jpg?800|ACX100 card with JTAG header}} | ||
+ | |||
+ | As it turned out by try and error, it is connected to the JTAG pins of the ACX100 chip. Once it was clear that the first 2 pins are GND and VDD (+3.3V), I tried all combinations of the JTAG signals. | ||
+ | |||
+ | ^ Pin ^ 1 ^ 2 ^ 3 ^ 4 ^ 5 ^ 6 ^ | ||
+ | |signal | GND | VDD | TCK | TDI | TDO | TMS | |