diff options
| -rw-r--r-- | doc/openocd.texi | 28 | ||||
| -rw-r--r-- | src/ecosboard.c | 3 |
2 files changed, 28 insertions, 3 deletions
diff --git a/doc/openocd.texi b/doc/openocd.texi index e53d9cae..902fb62c 100644 --- a/doc/openocd.texi +++ b/doc/openocd.texi @@ -51,6 +51,7 @@ This manual documents edition @value{EDITION} of the Open On-Chip Debugger * Target library:: Target library * Commands:: OpenOCD Commands * Sample Scripts:: Sample Target Scripts +* TFTP:: TFTP * GDB and OpenOCD:: Using GDB and OpenOCD * TCL and OpenOCD:: Using TCL and OpenOCD * TCL scripting API:: Tcl scripting API @@ -936,11 +937,18 @@ These commands allow accesses of a specific size to the memory system: @item @b{fast_load_image} <@var{file}> <@var{address}> [@option{bin}|@option{ihex}|@option{elf}] @cindex fast_load_image @anchor{fast_load_image} -@*Same functionality and arguments as load_image, but image is stored in memory +@*Normally you should be using @b{load_image} or GDB load. However, for +testing purposes or when IO overhead is significant(OpenOCD running on embedded +host), then storing the image in memory and uploading the image to the target +can be a way to upload e.g. multiple debug sessions when the binary does not change. +Arguments as @b{load_image}, but image is stored in OpenOCD host +memory, i.e. does not affect target. This approach is also useful when profiling +target programming performance as IO and target programming can easily be profiled +seperately. @item @b{fast_load} @cindex fast_image @anchor{fast_image} -@*Load active fast load image to current target +@*Loads image stored in memory by @b{fast_load_image} to current target. Must be preceeded by fast_load_image. @item @b{dump_image} <@var{file}> <@var{address}> <@var{size}> @cindex dump_image @anchor{dump_image} @@ -1809,6 +1817,22 @@ See libdcc in the contrib dir for more details. @*Enable/disable target debugmsgs requests. debugmsgs enable messages to be sent to the debugger while the target is running. @end itemize +@node TFTP +@chapter TFTP +@cindex TFTP +If OpenOCD runs on an embedded host(as ZY1000 does), then tftp can +be used to access files on PCs(either developer PC or some other PC). + +The way this works is to prefix a filename by "/tftp/ip/" and append +the tftp path on the tftp server(tftpd). E.g. "load_image /tftp/10.0.0.96/c:\temp\abc.elf" +will load c:\temp\abc.elf from the developer pc (10.0.0.96) into memory as +if the file was hosted on the embedded host. + +In order to achieve decent performance, you must choose a tftp server +that supports a packet size bigger than the default packet size(512 bytes). There +are numerous tftp servers out there(free and commercial) and you will have to do +a bit of googling to find something that fits your requirements. + @node Sample Scripts @chapter Sample Scripts @cindex scripts diff --git a/src/ecosboard.c b/src/ecosboard.c index 7af5ea42..86f3d8d1 100644 --- a/src/ecosboard.c +++ b/src/ecosboard.c @@ -266,7 +266,8 @@ int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, duration_stop_measure(&duration, &duration_text); if (retval==ERROR_OK) { - command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text); + command_print(cmd_ctx, "Loaded %u bytes in %s", image_size, duration_text); + command_print(cmd_ctx, "NB!!! image has not been loaded to target, issue a subsequent 'fast_load' to do so."); } free(duration_text); |