class OrigenARMDebug::SW_DPController

Public Instance Methods

read_register(reg, options = {}) click to toggle source
# File lib/origen_arm_debug/sw_dp_controller.rb, line 26
def read_register(reg, options = {})
  unless reg.readable?
    fail "The :#{reg.name} register is not readable!"
  end

  if reg.owner == model
    log "Read SW-DP register #{reg.name.to_s.upcase}: #{Origen::Utility.read_hex(reg)}" do
      dut.swd.read_dp(reg)
    end
  else
    unless reg.owner.is_a?(AP)
      fail 'The SW-DP can only write to DP or AP registers!'
    end

    select_ap_reg(reg)
    dut.swd.read_ap(address: reg.address)

    # Add any extra delay needed in between selecting the AP state, initiating and completing a dummy read, and
    # starting the actual read.
    if options[:apacc_wait_states]
      options[:apacc_wait_states].cycles
    end

    dut.swd.read_dp(reg, options.merge(address: rdbuff.address))
  end
end
write_register(reg, options = {}) click to toggle source
# File lib/origen_arm_debug/sw_dp_controller.rb, line 7
def write_register(reg, options = {})
  unless reg.writable?
    fail "The :#{reg.name} register is not writeable!"
  end

  if reg.owner == model
    log "Write SW-DP register #{reg.name.to_s.upcase}: #{reg.data.to_hex}" do
      dut.swd.write_dp(reg)
    end
  else
    unless reg.owner.is_a?(AP)
      fail 'The SW-DP can only write to DP or AP registers!'
    end

    select_ap_reg(reg)
    dut.swd.write_ap(reg, options)
  end
end