Class: LinkDemo::TopLevelController

Inherits:
Object
  • Object
show all
Includes:
Origen::Controller, OrigenARMDebug, OrigenJTAG
Defined in:
lib/link_demo/top_level_controller.rb

Constant Summary

MDMAP_STAT = 
0x01000000
MDMAP_CTRL = 
0x01000004

Instance Method Summary (collapse)

Instance Method Details

- (Object) interactive_shutdown

This is called automatically at the end of an interactive session (origen i)



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# File 'lib/link_demo/top_level_controller.rb', line 43

def interactive_shutdown
  if tester.link?
    shutdown
    # TODO: This should be automated
    tester.synchronize
  end
end

- (Object) interactive_startup

This is called automatically at the start of an interactive session (origen i)



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# File 'lib/link_demo/top_level_controller.rb', line 38

def interactive_startup
  startup if tester.link?
end

- (Object) read_portb_3_0(value) 



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# File 'lib/link_demo/top_level_controller.rb', line 59

def read_portb_3_0(value)
  ss 'Enable PortB[3:0] as inputs'
  portb.enable_gpio(0, 1, 2, 3)
  gpiob.pddr[3..0].write!(0x0)
  ss 'Read value from PortB[3:0]'
  gpiob.pdir[3..0].read!(value)
end

- (Object) read_register(reg, options = {}) 



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# File 'lib/link_demo/top_level_controller.rb', line 55

def read_register(reg, options = {})
  arm_debug.read_register(reg, options)
end

- (Object) shutdown(options = {})

This is called automatically at the end of generating a pattern



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# File 'lib/link_demo/top_level_controller.rb', line 32

def shutdown(options = {})
  ss 'Put the device into reset'
  pin(:resetb).drive!(0)
end

- (Object) startup(options = {})

This is called automatically at the start of generating a pattern



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# File 'lib/link_demo/top_level_controller.rb', line 16

def startup(options = {})
  ss 'Reset the device and hold off core execution'
  tester.set_timeset('func_25mhz', 40)   # Where 40 is the period in ns
  pin(:resetb).drive!(0)
  arm_debug.abs_if.read_dp(:idcode, 0x4ba00477)      # Dummy read
  arm_debug.abs_if.write_dp(:ctrl_stat, 0x50000000)  # Power-up Debugger & System
  arm_debug.abs_if.read_dp(:ctrl_stat, 0xf0000000)   # Power-up Debugger & System (verify)
  arm_debug.abs_if.read_ap(MDMAP_STAT, 0x00000032)   # Wait for flash, system, and security to stabilize
  arm_debug.abs_if.write_ap(MDMAP_CTRL, 0x00000010)  # Assert debugger reset to CPU
  arm_debug.abs_if.read_ap(MDMAP_CTRL, 0x00000010)   # Assert debugger reset to CPU
  pin(:resetb).dont_care!
  arm_debug.abs_if.read_ap(MDMAP_STAT, 0x0000003a)   # Wait for flash, system, and security to stabilize
  dut.mem(0x4004_8038).write!(0xFFFF_FFFF)           # Turn off all clock gating
end

- (Object) write_register(reg, options = {}) 



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# File 'lib/link_demo/top_level_controller.rb', line 51

def write_register(reg, options = {})
  arm_debug.write_register(reg, options)
end