Hi Paul,
Am 18.01.2014 17:32, schrieb Paul Fertser:
Hi,
Does http://openocd.zylin.com/1884 help with this?
It's getting better, but putting
init; ftdi_set_signal PWR_RST 1
at the end of my config file doesn't help.
I need to restart openocd to get a connection on 2nd try.
I'm using GIT Head and the stock tcl/target/ti_tms570.cfg, so I tried to
hook the FTDI-reset into JTAG's post-reset event (see attached patch)
and it works reliably, but I don't know if this is the right hook for that?
Thanks && best regards,
Alex
diff --git a/tcl/interface/ftdi/xds100v2.cfg b/tcl/interface/ftdi/xds100v2.cfg
index 8557baa..ebae441 100644
--- a/tcl/interface/ftdi/xds100v2.cfg
+++ b/tcl/interface/ftdi/xds100v2.cfg
@@ -8,7 +8,7 @@ interface ftdi
ftdi_device_desc "Texas Instruments Inc.XDS100 Ver 2.0"
ftdi_vid_pid 0x0403 0xa6d0
-ftdi_layout_init 0x0838 0x597b
+ftdi_layout_init 0x0038 0x597b
ftdi_layout_signal nTRST -data 0x0010
ftdi_layout_signal nSRST -oe 0x0100
ftdi_layout_signal nEMU_EN -data 0x0020
@@ -16,3 +16,5 @@ ftdi_layout_signal nEMU0 -data 0x0040
ftdi_layout_signal nEMU1 -data 0x1000
ftdi_layout_signal PWR_RST -data 0x0800
ftdi_layout_signal LOOPBACK -data 0x4000
+
+echo "\nInfo : to use this adapter you MUST add ``init; ftdi_set_signal PWR_RST 1'' to the end of your config file!\n"
diff --git a/tcl/target/ti_tms570.cfg b/tcl/target/ti_tms570.cfg
index 589e9d6..e9f29e7 100644
--- a/tcl/target/ti_tms570.cfg
+++ b/tcl/target/ti_tms570.cfg
@@ -33,7 +33,8 @@ if { [info exists JRC_TAPID] } {
jtag newtap $_CHIPNAME jrc -irlen 6 -ircapture 0x1 -irmask 0x3f \
-expected-id $_JRC_TAPID -ignore-version
jtag configure $_CHIPNAME.jrc -event setup "jtag tapenable $_CHIPNAME.dap"
-jtag configure $_CHIPNAME.jrc -event post-reset "runtest 100"
+# "ftdi_set_signal" is required when using FTDI driver, see ftdi/xds100v2.cfg
+jtag configure $_CHIPNAME.jrc -event post-reset "ftdi_set_signal PWR_RST 1; runtest 100"
# Cortex R4 target
set _TARGETNAME $_CHIPNAME.cpu
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