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55 lines
1.7 KiB
Lua
55 lines
1.7 KiB
Lua
-- Drone Flash
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-- Created by Kiritow
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local component=require('component')
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local shrink=require('shrink')
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require('libevent')
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print("Please insert new eeprom. (Or press Ctrl+C if the eeprom is already inserted.)")
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while true do
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local e=WaitMultipleEvent("interrupted","component_added")
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if(e.event=="interrupted" or (e.event=="component_added" and e.componentType=="eeprom")) then
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break
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end
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end
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if(not component.eeprom) then
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print("No eeprom detected. Exited.")
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return
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end
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print("EEPROM detected: " .. component.eeprom.address)
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print("[Working] Reading drone bios from disk...")
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local f=io.open("drone_bios.lua","r")
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if(not f) then
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print("[Error] Unable to open drone_bios.lua.")
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return
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end
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local data=f:read("a")
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f:close()
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local szBefore=string.len(data)
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print("Original data size: " .. szBefore)
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print("[Working] Syntax checking...")
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local xt={}
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local fn,err=load(data,"DroneBIOS","t",xt)
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if(not fn) then
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print("Found syntax error: " .. err)
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return
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end
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print("[Working] Getting DroneBIOS version...")
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pcall(fn)
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local drone_bios_version=xt['drone_version']
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if(not drone_bios_version) then
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print("[Error] Unable to get version tag.")
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return
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end
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print("Version tag: " .. drone_bios_version)
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print("[Working] Shrinking...")
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data=shrink(data)
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local szAfter=string.len(data)
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print("Shrank data size: " .. szAfter)
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if(component.eeprom.getSize()<szAfter) then
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print("[Error] Not enough space in eeprom. Need " .. szAfter-component.eeprom.getSize() .. " more bytes.")
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return
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end
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print("[Working] Writing to eeprom...")
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component.eeprom.set(data)
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print("[Working] Setting eeprom label...")
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component.eeprom.setLabel(drone_bios_version)
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print("[Done] Remember to insert the original eeprom!") |