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| author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-08-27 06:05:27 +0000 |
|---|---|---|
| committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-08-27 06:05:27 +0000 |
| commit | a5cbe5bd85aad2341f62d7fcdb7691da290b0a38 (patch) | |
| tree | d8612952c89df7c7509e2bc89286c09663cf0e2d /src | |
| parent | 113436df6fa0f8638e03b9f63588ce8504290f63 (diff) | |
| download | openocd_libswd-a5cbe5bd85aad2341f62d7fcdb7691da290b0a38.tar.gz openocd_libswd-a5cbe5bd85aad2341f62d7fcdb7691da290b0a38.tar.bz2 openocd_libswd-a5cbe5bd85aad2341f62d7fcdb7691da290b0a38.tar.xz openocd_libswd-a5cbe5bd85aad2341f62d7fcdb7691da290b0a38.zip | |
comment about slow RTCK
git-svn-id: svn://svn.berlios.de/openocd/trunk@972 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src')
| -rw-r--r-- | src/jtag/jtag.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 347777e4..7fdcd7bd 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -199,7 +199,13 @@ typedef struct jtag_interface_s int (*init)(void); int (*quit)(void); /* returns JTAG maxium speed for KHz. 0=RTCK. The function returns - a failure if it can't support the KHz/RTCK. */ + a failure if it can't support the KHz/RTCK. + + WARNING!!!! if RTCK is *slow* then think carefully about + whether you actually want to support this in the driver. + Many target scripts are written to handle the absence of RTCK + and use a fallback kHz TCK. + */ int (*khz)(int khz, int *jtag_speed); /* returns the KHz for the provided JTAG speed. 0=RTCK. The function returns a failure if it can't support the KHz/RTCK. */ |