We're targeting boards like this: http://www.alibaba.com/product-gs/830751044/RT5350_150Mbps_Embedded_WIFI_AP_module.html or this one: http://asiarf.en.alibaba.com/product/684045971-213175812/WiFi_PCIe_Direct_Cam_Module_AWM006.html
So I may be able to change the boot mode by altering pull-up on the edge connector. The goal in doing this is for recovering bricked boards. Once the pull up is set, how do you talk to it? I wonder if there is a single ROM for all Ralink chips. In that case iNIC USB mode is going to be the mode the RT5370 uses to load its firmware. Source for that would be in the Linux kernel. On Sun, Apr 7, 2013 at 7:26 PM, Tobias Diedrich <ranma+open...@tdiedrich.de> wrote: > jonsm...@gmail.com wrote: >> Ralink CPU datasheets mention an iNIC boot mode without describing >> what it does. For example the RT5350 supports iNIC-USB and iNIC PHY >> boot modes. >> >> Has anyone tried activating these modes? Do they trigger a boot >> sequence of some kind from USB or Ethernet? I suspect that is what >> these modes do. The chip has 16KB boot ROM which is a lot of code. >> Maybe this is a generic MIPS boot ROM? >> >> If so, this is a way to unbrick Ralink devices without using a JTAG. >> It is also a way to bootstrap a board with an empty flash chip. If >> someone has info on these modes it would be very helpful for my >> current project. > > If I understand the datasheet correctly: > - iNIC is short for 'intelligent NIC' > - This is supposed to be used to upgrade existing designs that have a > MII-interface, but no wireless. > - You'll need to set the right bootstrap pin pullups/pulldowns to > activate it. > > -- > Tobias PGP: http://8ef7ddba.uguu.de -- Jon Smirl jonsm...@gmail.com _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
