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Contents
% render "layouts/basic.html" do
### Legacy Integration
The following approach to adding an JTAG driver is still supported, however new projects
should use the new style integration as described [on the home page](<%= path "/" %>).
Include the <code>OrigenJTAG</code> module to add a JTAG driver to your class and
define the required pins.
Normally the pins would be an alias to existing DUT pins and therefore the
JTAG driver module cannot assume them.
Including the module adds a <code>jtag</code> method which will return an instance of
[<code>OrigenJTAG::Driver</code>](<%= path "api/OrigenJTAG/Driver.html" %>).
Here is an example integration:
~~~ruby
class MyApp::MyDUT
include Origen::TopLevel
include OrigenJTAG
# TCK covers 4 tester cycles, 2 high then 2 low for each effective TCK pulse
# Strobe TDO only when TCK high. Only store TDO on last cycle (3)
JTAG_CONFIG = {
:tck_format => :rl,
:tck_multiple => 4,
:tdo_strobe => :tck_high,
:tdo_store_cycle => 3,
}
def initialize
add_pin :tck
add_pin :tdi
add_pin :tdo
add_pin :tms
end
end
MyApp::MyDUT.new.jtag # => An instance of OrigenJTAG::Driver
~~~
% end
Version data entries
6 entries across 6 versions & 1 rubygems