diff options
| author | Matthias Welwarsky <matthias@welwarsky.de> | 2016-01-19 22:36:54 +0100 |
|---|---|---|
| committer | Andreas Fritiofson <andreas.fritiofson@gmail.com> | 2016-02-13 23:04:49 +0000 |
| commit | e026d3ff1bf31f531bf97bc151b4693a6a52f8e7 (patch) | |
| tree | b4e41251ac76c393729935d183cb321c24191759 /src/flash/nor/tcl.c | |
| parent | de239311629e684e88a2e60d9d19c77d1fc35ae5 (diff) | |
jtag ftdi: sample TDO on falling edge of TCK
Due to signal propagation delays, sampling TDO on rising TCK can become
quite peculiar at fast TCK rates. However, FTDI chips offer a possiblity
to sample TDO on falling edge. With this change, stable operation can be
achieved at 30MHz clock even over 10cm ribbon cable.
Change-Id: Icaf240535dae15512e3c60a944e22a5fbc1b0b06
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3180
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Diffstat (limited to 'src/flash/nor/tcl.c')
0 files changed, 0 insertions, 0 deletions