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| author | Paul Fertser <fercerpav@gmail.com> | 2014-10-26 13:49:51 +0300 |
|---|---|---|
| committer | Andreas Fritiofson <andreas.fritiofson@gmail.com> | 2014-11-02 18:04:14 +0000 |
| commit | cbb797bdccbce7cff7f0121955950bf318da0f02 (patch) | |
| tree | 9f301a31376cc0199015771e061469265c88572a /tcl | |
| parent | 885f4388144840e411512543cd92fb9335ce806a (diff) | |
| download | riscv-openocd-cbb797bdccbce7cff7f0121955950bf318da0f02.zip riscv-openocd-cbb797bdccbce7cff7f0121955950bf318da0f02.tar.gz riscv-openocd-cbb797bdccbce7cff7f0121955950bf318da0f02.tar.bz2 | |
tcl/interface/ftdi/swd-resistor-hack: clarify and add schematic diagram
Change-Id: I8600ee983de85e4225430ae508a50cd938122d89
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2357
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Diffstat (limited to 'tcl')
| -rw-r--r-- | tcl/interface/ftdi/swd-resistor-hack.cfg | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tcl/interface/ftdi/swd-resistor-hack.cfg b/tcl/interface/ftdi/swd-resistor-hack.cfg index 7848875..04f3a73 100644 --- a/tcl/interface/ftdi/swd-resistor-hack.cfg +++ b/tcl/interface/ftdi/swd-resistor-hack.cfg @@ -3,6 +3,23 @@ # so depending on the drive capability of the target and adapter); # connect TDO directly to SWDIO. # +# You also need to have reliable GND connection between the target and +# adapter. Vref of the adapter should be supplied with a voltage equal +# to the target's (preferrably connect it to Vcc). You can also +# optionally connect nSRST. Leave everything else unconnected. +# +# FTDI Target +# ---- ------ +# 1 - Vref ----------------- Vcc +# 3 - nTRST - +# 4 - GND ----------------- GND +# 5 - TDI ---/\470 Ohm/\--- SWDIO +# 7 - TMS - +# 9 - TCK ----------------- SWCLK +# 11 - RTCK - +# 13 - TDO ----------------- SWDIO +# 15 - nSRST - - - - - - - - - nRESET +# transport select swd |