Sha256: b94124b528cb72e7356d4803a2bb6188acd57c0f22d6af2ec195009a6e56b4ab
Contents?: true
Size: 1.46 KB
Versions: 8
Compression:
Stored size: 1.46 KB
Contents
module OrigenSimDev
class IP
include Origen::Model
def initialize
# Virtual reg to implement the JTAG scan chain
add_reg :dr, 0x0, size: 49 do |reg|
reg.bit 48, :write
reg.bits 47..32, :address
reg.bits 31..0, :data
end
# User regs
add_reg :cmd, 0x0
reg :status, 0x4 do |reg|
reg.bit 2, :error, access: :w1c
reg.bit 1, :fail, access: :w1c
reg.bit 0, :busy
end
add_reg :data, 0x8
end
def communication_test
ss "Communication test with #{name}"
data.write!(0x1234)
data.read!
data.read!
data.write!(0x5555_AAAA)
data.read!
end
def execute_cmd(code)
ss "Execute command #{code}"
PatSeq.reserve :jtag do
# This is redundant, but added as a test that if an embedded reservation is made to the same
# resource then the end of the inner block does not release the reservation before completion
# of the outer block
PatSeq.reserve :jtag do
# Verify that no command is currently running
status.read!(0)
end
cmd.write!(code)
10.cycles
# Verify that the command has started
status.busy.read!(1)
end
# Wait for the command to complete, a 'command' lasts for
# 1000 cycles times the command code
(code * 1000).cycles
# Verify that the command completed and passed
status.read!(0)
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems