Hi Jerry, "jerry_xjtu" <jerry_x...@hotmail.com> writes: > > I am reading src\jtag\drivers\jlink.c > From JLink USB protocol manual there is 3 x 2048 Bytes > buffer to store tdi/tms/tdo data. > Any one knows why it have changed to 256Bytes from the code? > > > //#define JLINK_TAP_BUFFER_SIZE 2048 > #define JLINK_TAP_BUFFER_SIZE 256 > //#define JLINK_TAP_BUFFER_SIZE 384 > > for the question: > > Does it means SAMPLE op will failed when CellNum is larger than 390?
you can run longer JTAG sequences by using more than one command. > No. the number 390 is from byte. To gen the full scan of > 734 CellNums , we maybe just need 734/8 = 92 bytes to > store the data. I derived the value 390 by reverse engineering, at the time the manual was not available to me. If the manual says so I guess it would be worth a try to use 2048. > 2010-02-05 Greetings from Germany (still 2010-02-04 here) Jürgen -- Jürgen Stuber <juer...@jstuber.net> http://www.jstuber.net/ _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
