download not creating expected file

[dannica2k]

---

Checklist

1. Can you establish a serial connection WITHOUT Nodemcu-Tool - e.g. with a serial terminal like Putty ?
   YES
   If not, the issue not related to NodeMCU-Tool - it might be a problem with your serial driver, NodeMCU hardware and/or firmware

2. Does the nodemcu-tool fsinfo command work ?
   YES

---

Environment

• Operating System
  Windows 10-1809
• ESP Device/Revision
  ESP8266
  Original NodeMCU v3.1.0
• NodeMCU-Tool Version
  3.1.0
• Node.js Version
  16.14.0
• NodeMCU LUA Firmware Version
  1.5.1

---

Debug Output

NOTE In case you have issues with some commands of NodeMCU-Tool, please provide the output of the command includng the debug flags

e.g. nodemcu-tool --debug --io-debug info

M:>nodemcu-tool -p com3 --debug --io-debug download init.lua
[config] ~ debug mode enabled
[config] ~ io-debug mode enabled - rx/tx messages are passed to logger
(node:11412) Warning: Accessing non-existent property 'padLevels' of module exports inside circular dependency
(Use node --trace-warnings ... to show where the warning was created)
[config] ~ baudrate = 115200 (type:string)
[config] ~ port = com3 (type:string)
[config] ~ connectionDelay = 0 (type:number)
[config] ~ minify = false (type:boolean)
[config] ~ compile = false (type:boolean)
[config] ~ keeppath = false (type:boolean)
[config] ~ remotename = null (type:object)
[config] ~ run = false (type:boolean)
[config] ~ all = false (type:boolean)
[config] ~ json = false (type:boolean)
[config] ~ raw = false (type:boolean)
[config] ~ softreset = false (type:boolean)
[config] ~ noninteractive = false (type:boolean)
[NodeMCU-Tool]~ Local file "init.lua" already exist - new file renamed to "init.lua.1681430292205"
[serialport] ~ TX: print("echo1337")
[serialport] ~ RX: print("echo1337")
[serialport] ~ RX: echo1337
[serialport] ~ RX: >
[serialport] ~ TX: print(node.info("hw"));
[serialport] ~ RX: print(node.info("hw"));
[serialport] ~ RX: table: 0x3fff0020
[serialport] ~ RX: >
[serialport] ~ TX: for k,v in pairs(node.info("hw")) do print(k,v) end;for k,v in pairs(node.info("sw_version")) do print(k,v) end;for k,v in pairs(node.info("build_config")) do print(k,v) end;
[serialport] ~ RX: for k,v in pairs(node.info("hw")
[serialport] ~ RX: ) do print(k,v) end;for k,v in p
[serialport] ~ RX: airs(node.info("sw_version")) do
[serialport] ~ RX: print(k,v) end;for k,v in pairs
[serialport] ~ RX: (node.info("build_config")) do p
[serialport] ~ RX: rint(k,v) end;
[serialport] ~ RX: flash_size
[serialport] ~ RX: 4096
[serialport] ~ RX: chip_id
[serialport] ~ RX: 2392542
[serialport] ~ RX: flash_mode
[serialport] ~ RX: 2
[serialport] ~ RX: flash_speed
[serialport] ~ RX: 40000000
[serialport] ~ RX: flash_id
[serialport] ~ RX: 1458208
[serialport] ~ RX: git_branch
[serialport] ~ RX: release
[serialport] ~ RX: git_release
[serialport] ~ RX:
[serialport] ~ RX: git_commit_id
[serialport] ~ RX: f25dc56d3c6213b8ac7ce46d1293466
[serialport] ~ RX: 137746eae
node_version_minor
[serialport] ~ RX: 0
[serialport] ~ RX: git_commit_dts
[serialport] ~ RX: 202112300746
[serialport] ~ RX: node_version_revision 0
[serialport] ~ RX: node_version_major
[serialport] ~ RX: 3
[serialport] ~ RX: ssl
[serialport] ~ RX: false
[serialport] ~ RX: number_type
[serialport] ~ RX: float
[serialport] ~ RX: modules
[serialport] ~ RX: file,http,net,node,pwm2,sjson,t
[serialport] ~ RX: mr,wifi
[serialport] ~ RX: lfs_size
[serialport] ~ RX: 0
[serialport] ~ RX: >
[NodeMCU-Tool]~ Connected
[device] ~ Arch: esp8266 | Version: 3.0.0 | ChipID: 0x2481de | FlashID: 0x164020
[NodeMCU-Tool]~ Downloading "init.lua" ...
[serialport] ~ TX: function __nmtread()local b = encoder and encoder.toBase64 while true do c = file.read(b and 240 or 1) if c==nil then print('')break end uart.write(0, b and encoder.toBase64(c) or string.format('%02X', string.byte(c)))end print('') end
[serialport] ~ RX: function __nmtread()local b = en
[serialport] ~ RX: coder and encoder.toBase64 while
[serialport] ~ RX: true do c = file.read(b and 240
[serialport] ~ RX: or 1) if c==nil then print('')b
[serialport] ~ RX: reak end uart.write(0, b and enc
[serialport] ~ RX: oder.toBase64(c) or string.forma
[serialport] ~ RX: t('%02X', string.byte(c)))end pr
[serialport] ~ RX: int('') end
[serialport] ~ RX: >
[serialport] ~ TX: print(file.open("init.lua", "r"))
[serialport] ~ RX: print(file.open("init.lua", "r")
[serialport] ~ RX: )
[serialport] ~ RX: userdata: 0x3fff0bd8

[serialport] ~ TX: __nmtread()
[serialport] ~ RX: __nmtread()
[serialport] ~ RX: Lua error:
[serialport] ~ RX: stdin:1: attempt to index globa
[serialport] ~ RX: l 'uart' (a nil value)
stack traceback:
stdin:1: in function
[serialport] ~ RX: '__nmtread'
stdin:1: in main c
[serialport] ~ RX: hunk
[C]: ?
[C]: ?

[connector] ~ Transfer-Encoding: base64
[serialport] ~ TX: undefined
[serialport] ~ RX: undefined
[serialport] ~ RX: >>
[NodeMCU-Tool]~ Data Transfer complete!
[NodeMCU-Tool]~ File "init.lua.1681430292205" created
[NodeMCU-Tool]~ disconnecting

---

Issue Description

I uploaded a test init.lua file, fully functional. I am looking to download it from 8266 on to my windows 10 computer
DOWNLOAD doesn't create the expected file, seems like it encounters an error on uart.

Expected Behavior

init.lua created on local computer

Current Behavior

the file is created but the content is garbage:
.æž®º+²×bŸV­µé©¶Ú"�×±‚Z�j[š®Ö§Š[ږ笵§$¶¶œy¶œ’Ë]Š}b�û§rبŸÿçšÚÞiÛ-v)õŠyšŠw!ºy�

Steps to Reproduce

1. nodemcu-tool -p com3 upload init.lua
2. nodemcu-tool -p com3 download init.lua

Detailed Description

...

Possible Solution

HELP!

[dannica2k]

One more observation, after the download fails, 8266 is stuck and needs to be reset:

M:>nodemcu-tool -p com3 --debug --io-debug download init.lua
[config] ~ debug mode enabled
[config] ~ io-debug mode enabled - rx/tx messages are passed to logger
(node:29228) Warning: Accessing non-existent property 'padLevels' of module exports inside circular dependency
(Use node --trace-warnings ... to show where the warning was created)
[config] ~ baudrate = 115200 (type:string)
[config] ~ port = com3 (type:string)
[config] ~ connectionDelay = 0 (type:number)
[config] ~ minify = false (type:boolean)
[config] ~ compile = false (type:boolean)
[config] ~ keeppath = false (type:boolean)
[config] ~ remotename = null (type:object)
[config] ~ run = false (type:boolean)
[config] ~ all = false (type:boolean)
[config] ~ json = false (type:boolean)
[config] ~ raw = false (type:boolean)
[config] ~ softreset = false (type:boolean)
[config] ~ noninteractive = false (type:boolean)
[NodeMCU-Tool]~ Local file "init.lua" already exist - new file renamed to "init.lua.1681430887938"
[serialport] ~ TX: print("echo1337")
[serialport] ~ RX: print("echo1337")
[serialport] ~ RX: Lua error:
[serialport] ~ RX: stdin:2: '=' expected near 'pri
[serialport] ~ RX: nt'

[connector] ~ Echo: print("echo1337")
[connector] ~ Response: Lua error: stdin:2: '=' expected near 'print'
[NodeMCU-Tool]~ Unable to establish connection
[NodeMCU-Tool]~ No response detected - is NodeMCU online and the Lua interpreter ready ?
[NodeMCU-Tool]~ Error: No response detected - is NodeMCU online and the Lua interpreter ready ?
at C:\Users\Daniel\AppData\Roaming\npm\node_modules\nodemcu-tool\lib\connector\check-connection.js:28:28

[AndiDittrich]

the uart module is missing within your firmware