I got an IOError

[Pyloons]

I just want to detect some info of my 89c52, but always raise an IOError.
it's my steps to use this script.
1st,python stcflash.py;
2nd,turn off the power;
3rd, turn on the power.then wait.then raise error.
why...

[Tnze]

I have the same issue on my Mac.
When I was executing the command "python /Users/Tnze/Documents/projects/51/tools/stcflash.py --port /dev/tty.wchusbserial1410 -v --lowbaud 19200 --protocol 89 /Users/Tnze/Documents/projects/51/CubeGluttonousSnake/bin/tnze.ihx", it shows
Connect to /dev/tty.wchusbserial1410 at baudrate 19200
Detecting target...
then I turn off, turn on the power, It shows

Connect to /dev/tty.wchusbserial1410 at baudrate 19200
Detecting target...INFO: [2668] Model ID: F0 02
INFO: [2668] Model name: STC89C52RC
INFO: [2669] ROM size: 8
INFO: [2669] Protocol ID: 89
INFO: [2669] Checksum mode: 1
INFO: [2669] UART Parity: NONE
INFO: [2669] Info string [0]: 66 43 FD F0 02 82 00 00 00 00 00 00 00 00 00 00
INFO: [2669] Info string [1]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: [2669] Info string [2]: 00 00 00 04
done
FOSC: 8.097MHz
Model: STC89C52RC (ver6.6C)
ROM: 8KB
[X] Reset stops watchdog
[X] Internal XRAM
[X] Normal ALE pin
[X] Full gain oscillator
[X] Not erase data EEPROM
[X] Download regardless of P1
[X] 12T mode
Baudrate: INFO: [2669] Test baudrate 28800 (accuracy 0.0244) using config FF F7 00 12 140
INFO: [2669] Waiting time config 83
Traceback (most recent call last):
File "/Users/Tnze/Documents/projects/51/tools/stcflash.py", line 700, in
main()
File "/Users/Tnze/Documents/projects/51/tools/stcflash.py", line 696, in main
program(Programmer(conn, opts.protocol), code, opts.erase_eeprom)
File "/Users/Tnze/Documents/projects/51/tools/stcflash.py", line 525, in program
prog.handshake()
File "/Users/Tnze/Documents/projects/51/tools/stcflash.py", line 372, in handshake
self.send(0x8F, baudstr + [0x80 + twait])
File "/Users/Tnze/Documents/projects/51/tools/stcflash.py", line 231, in send
self.__conn_write(buf)
File "/Users/Tnze/Documents/projects/51/tools/stcflash.py", line 68, in __conn_write
self.conn.write(bytearray(s))
ValueError: byte must be in range(0, 256).

Then I insert print(s) at line 68. It prints [70, 185, 106, 0, 12, 143, 255, 247, 0, 18, 320, 131, 208, 22]

[MRsoymilk]

I just want to detect some info of my 89c52, but always raise an IOError.
it's my steps to use this script.
1st,python stcflash.py;
2nd,turn off the power;
3rd, turn on the power.then wait.then raise error.
why...

I got the same problem, waiting for someone to help me

[MRsoymilk]

your chip may not support, change another one.

[retrhelo]

Got a similar output. After I got "Detecting target...", I turned off and on the power of my board, but nothing happened. After a while I got an IO error. I was using a STC89C52.

[Calvin-Dong-007]

I use STC89C516, The same problem~ Is there someone solve it? Thanks~

Detecting target...Traceback (most recent call last):
File "stcflash.py", line 701, in
main()
File "stcflash.py", line 697, in main
program(Programmer(conn, opts.protocol), code, opts.erase_eeprom)
File "stcflash.py", line 509, in program
prog.detect()
File "stcflash.py", line 243, in detect
raise IOError()

[Haotian-Shi-cyber]

remember serial is cross connected, check if it is the issue