diff options
Diffstat (limited to 'src/jtag/jtag.h')
| -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. */ |