Edukit ATECC608B & AWS IOT & UiFlow
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@felmue @greenleaf I've reached out to M5Stack to see if they have a solution.
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Interesting, It seams that the I2C master bus is not being initialised.
E (71690) i2c: /home/m5/M5-Workspace/esp-idf-for-m5/components/driver/i2c.c:1273 (i2c_master_cmd_begin):i2c driver not installed E (71692) i2c: /home/m5/M5-Workspace/esp-idf-for-m5/components/driver/i2c.c:1273 (i2c_master_cmd_begin):i2c driver not installed Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled. Core 0 register dump: PC : 0x400d29ea PS : 0x00060230 A0 : 0x800dffe5 A1 : 0x3ffd3450 A2 : 0x3f9530c0 A3 : 0x3f76a89d A4 : 0x3f953070 A5 : 0x00000000 A6 : 0x000000fe A7 : 0x3ffc4c40 A8 : 0x800d29ea A9 : 0x3ffd3430 A10 : 0x00000000 A11 : 0x00000001 A12 : 0x3f953150 A13 : 0x3ffd3440 A14 : 0x0000000c A15 : 0xff000000 SAR : 0x0000001a EXCCAUSE: 0x0000001c EXCVADDR: 0x00000010 LBEG : 0x40093aa4 LEND : 0x40093ad2 LCOUNT : 0xffffffff ELF file SHA256: 0000000000000000 Backtrace: 0x400d29e7:0x3ffd3450 0x400dffe2:0x3ffd3470 0x400e0bcc:0x3ffd3490 0x4016d781:0x3ffd34b0 0x4016d7b1:0x3ffd34d0 0x40097d55:0x3ffd3500 Rebooting... ets Jul 29 2019 12:21:46 rst:0xc (SW_CPU_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0018,len:4 load:0x3fff001c,len:5228 load:0x40078000,len:13424 load:0x40080400,len:3568 entry 0x4008063c _ __ _ _ _(_)/ _| | _____ __ | | | | | |_| |/ _ \ \ /\ / / | |_| | | _| | (_) \ V V / \__,_|_|_| |_|\___/ \_/\_/
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OK getting somewhere, every time you get a guru or kernel panic you need to hard shut down the core two for 5 seconds or the bug remains in memory.
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And there is the Issue:
The code is not getting run in the correct order!
There was a man who had a dog and BINGO! was his Name-O!
![0_1659772116790_Screenshot 2022-08-06 at 08.47.52.png](Uploading 100%)1 Set forward.
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1 Step Forward!
from m5stack_ui import * from uiflow import * import i2c_bus import machine i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21), freq=133000) screen = M5Screen() screen.clean_screen() screen.set_screen_bg_color(0xFFFFFF) label0 = M5Label('label0', x=15, y=43, color=0x000, font=FONT_MONT_14, parent=None) print('Scan i2c bus...') addresses = i2c.scan() print(i2c.scan()) label0.set_text(str(i2c.scan()))
So the code get run out of order and crashes the i2c bus.
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Hello @ajb2k3
are you doing multiple
i2c.scan()
calls on purpose? When I try that I only get an empty list. However doing only one scan works for me.I went through older M5Core2 UIFlow firmware versions and all of them crash on me when using the ID unit with custom values for I2C (e.g. 21, 22) in order to access the ATECC608 in the AWS bottom. And UIFlow firmware 1.7.5 doesn't support the ID unit.
BTW: The ATECC608B has a sleep mode and when it is in that mode it will not show up during an I2C scan.
Thanks
Felix -
@felmue I'm doing multi scans because I'm not sure how do make one and pass the results to both the Label and print functions.
Yeh found out about the sleep mode, you have to hard reset the base plate to wake it up before running an i2C scan.
I'm running 1.10.2 and found the issue is in the i2C setup function.addresses = i2c.scan()
Is just a left over function of what I was testing earlier. -
And more progress!
I have stable access to the Core2 AWS' ATECC608b>>> help(_ID.ID) object <class 'ID'> is of type type receiveResponseData -- <function receiveResponseData at 0x3f95ce00> read_output -- <function read_output at 0x3f95d1d0> publicKey64Bytes -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') verifySignature -- <function verifySignature at 0x3f95d260> wakeup -- <function wakeup at 0x3f95cc90> dataOTPLockStatus -- False createNewKeyPair -- <function createNewKeyPair at 0x3f95ce60> signTempKey -- <function signTempKey at 0x3f95d240> generatePublicKey -- <function generatePublicKey at 0x3f95d1a0> getRandomInt -- <function getRandomInt at 0x3f95cdc0> sha256 -- <function sha256 at 0x3f95d270> updateRandom32Bytes -- <function updateRandom32Bytes at 0x3f95cd10> random32Bytes -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') KeyConfig -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') configZone -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') input_buffer -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') writeConfigZone -- <function writeConfigZone at 0x3f95d280> lockDataSlot0 -- <function lockDataSlot0 at 0x3f95ccf0> signature -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') readConfigZone -- <function readConfigZone at 0x3f95ccd0> get_crc -- bytearray(b'\x00\x00') countGlobal -- 0 check_crc -- <function check_crc at 0x3f95ce20> read -- <function read at 0x3f95d1c0> write -- <function write at 0x3f95d1e0> __init__ -- <function __init__ at 0x3f95cd90> slot0LockStatus -- False createSignature -- <function createSignature at 0x3f95d200> revisionNumber -- bytearray(b'\x00\x00\x00\x00\x00') get_info -- <function get_info at 0x3f95ccb0> getRandomLong -- <function getRandomLong at 0x3f95cdd0> random_min_max -- <function random_min_max at 0x3f95cdf0> __module__ -- units._ID configLockStatus -- False hash256 -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') lockDataAndOTP -- <function lockDataAndOTP at 0x3f95cce0> random_max -- <function random_max at 0x3f95cde0> idle_mode -- <function idle_mode at 0x3f95cca0> calculate_crc -- <function calculate_crc at 0x3f95ce30> cleanInputBuffer -- <function cleanInputBuffer at 0x3f95ce40> lock_config -- <function lock_config at 0x3f95ccc0> __qualname__ -- ID serialNumber -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') lock -- <function lock at 0x3f95cd00> loadTempKey -- <function loadTempKey at 0x3f95d220> getRandomByte -- <function getRandomByte at 0x3f95cdb0> sendCommand -- <function sendCommand at 0x3f95d2c0> check_count -- <function check_count at 0x3f95ce10> SlotConfig -- bytearray(b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00') >>> help(_ID.ID.wakeup) object <function wakeup at 0x3f95cc90> is of type function >>> help(_ID.ID.get_info) object <function get_info at 0x3f95ccb0> is of type function >>> help('_ID.ID.get_info') object _ID.ID.get_info is of type str encode -- <function> find -- <function> rfind -- <function> index -- <function> rindex -- <function> join -- <function> split -- <function> splitlines -- <function> rsplit -- <function> startswith -- <function> endswith -- <function> strip -- <function> lstrip -- <function> rstrip -- <function> format -- <function> replace -- <function> count -- <function> partition -- <function> rpartition -- <function> center -- <function> lower -- <function> upper -- <function> isspace -- <function> isalpha -- <function> isdigit -- <function> isupper -- <function> islower -- <function> >>> import i2c_bus >>> i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21), freq=133000) Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 'machine' isn't defined >>> import i2c_bus >>> Import machine Traceback (most recent call last): File "<stdin>", line 1 SyntaxError: invalid syntax >>> import machine >>> i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21), freq=133000) >>> print(i2c.scan()) [52, 53, 56, 81, 104] >>> import units >>> from units import _ID >>> i2c.wakeup Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'I2C' object has no attribute 'wakeup' >>> ID_0 = unit.get(unit.ID, (21,22)) >>> ID_0.wakeup <bound_method> >>> ID_0.ID.wakeup Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'ID' object has no attribute 'ID' >>> ID_0.get_info <bound_method> >>> print(ID_0.get_info) <bound_method> >>> print(ID_0.get_info()) True >>> print(ID_0.wakeup()) True >>> print(ID_0.read_output()) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: function takes 5 positional arguments but 1 were given >>> print(ID_0.readConfigZone()) True >>> print(ID_0.revisionnumber()) Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'ID' object has no attribute 'revisionnumber' >>> print(ID_0.revisionNumber()) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: 'bytearray' object isn't callable >>> print(ID_0.revisionNumber) bytearray(b'\x00\x00`\x02') >>> print(ID_0.serialNumber) bytearray(b'\x01#\xce\xa0\xcf\x06\x90\x0b\x01') >>>
Datalog dump from Thonny!
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>>> print(ID_0.loadTempKey(64)) True >>> print(ID_0.generatePublicKey()) True >>> print(ID_0.publicKey64Bytes) bytearray(b'\x84\xf8\xda\xf6\xda\x18&r\x1b\xf0\xdbv\x1a\xcc\xf6z\xfd\xe2>\xdcY\xd5l\xf4kk\xb7D\xffI6\x1d\xcfDO\x9f\xc8bv\x80\xa9\xb8\xe75\xc5\x13\xe4\xe91\x9b\xcelg\xeb\x01Q\x18\xd0<\x91\xcb\xd8\xc1\xa1') >>>
Generate and display a key!
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Hello @ajb2k3
thank you for putting together the guide. Unfortunately I cannot get it to work. I do not fully understand the following instructions from your guide.
Now I have the basics after poking away at micropython I import machine and units._ID0
import units from units import _ID ID_0 = unit.get(unit.ID, (21,22))
Using Thonny and ...
... trying toimport units._ID0
results in an error.
... where is_ID
used?
... trying to runID_0 = unit.get(unit.ID, (21,22))
still crashes my M5Core2.Thanks
Felix -
@felmue It will.
You have to run the commands in that exact order or it will crash and restart!If you run help('modules') in Thonny you will find the module units/_ID this took me house to work out.
_ID0 does not exist, the module is _ID
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Hello @ajb2k3
thank you. I appreciate all your help. Unfortunately for some reason I cannot get it to work on my side. Whatever steps I execute before, every time I try to execute
ID_0 = unit.get(unit.ID, (21,22))
my M5Core2 crashes.Thanks
Felix -
@felmue Sorry, you need to import unit
Then import units then from units import _IDalso the code is
import units import unit from units import _ID ID_0 = unit.get(unit.ID, (21,22))
however you can also use:
import units import unit from units import _ID ATECC = unit.get(unit.ID, (21,22))
I don't know why both unit and units (with an S) must be called but they both do.
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Hello @ajb2k3
thank you again. I tried both your code sequences - still no luck. M5Core2 still reboots after the last command.
Which UIFlow firmware version is running on your M5Core2?
Thanks
Felix -
@felmue ok, its been working all day and now crashing
1.10.2OK if you make 1 single mistake, you to to disconnect and power down the Core2 to empty the memory
this works.
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Hello @ajb2k3
at this point I think whether the commands succeed or result in a crash depends on the amount of free memory.
With a freshly rebooted M5Core2 the following commands (sometimes) can be executed w/o crash.>>> import unit >>> ID_0 = unit.get(unit.ID, (21,22)) >>> print(ID_0.wakeup()) True >>> print(ID_0.readConfigZone()) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "units/_ID.py", line 186, in readConfigZone File "units/_ID.py", line 363, in read File "units/_ID.py", line 377, in read_output File "units/_ID.py", line 161, in idle_mode File "i2c_bus.py", line 100, in write_list OSError: I2C bus error (110) >>> print(ID_0.readConfigZone()) True >>> print(ID_0.revisionNumber) bytearray(b'\x00\x00`\x03')
Note: The commands need to be executed manually one by one.
Note: I don't need theimport units
nor thefrom units import _ID
commands.Thanks
Felix -
@felmue said in Edukit ATECC608B & AWS IOT & UiFlow:
Hello @ajb2k3
at this point I think whether the commands succeed or result in a crash depends on the amount of free memory.
With a freshly rebooted M5Core2 the following commands (sometimes) can be executed w/o crash.>>> import unit >>> ID_0 = unit.get(unit.ID, (21,22)) >>> print(ID_0.wakeup()) True >>> print(ID_0.readConfigZone()) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "units/_ID.py", line 186, in readConfigZone File "units/_ID.py", line 363, in read File "units/_ID.py", line 377, in read_output File "units/_ID.py", line 161, in idle_mode File "i2c_bus.py", line 100, in write_list OSError: I2C bus error (110) >>> print(ID_0.readConfigZone()) True >>> print(ID_0.revisionNumber) bytearray(b'\x00\x00`\x03')
Note: The commands need to be executed manually one by one.
Note: I don't need theimport units
nor thefrom units import _ID
commands.Thanks
Felix
Agreed, once the error occurs then memory gets filled requiring hard reset.
You didn’t need unit or the from? I will try again later.
I have spent all weekend writing up the atecc for my av2 book including logging the MP modules. I’ll try without those two line tonight. -
The issue of found was that the basic unit functions are in the unit module with unit.ID being empty but the ATecc function are all in units._ID
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@felmue try adding the following before defining ID_0
From esp import gc
gc.collect.This should help clean up some memory.
Nope that was wrong. the min code I can get running is
import unit import units from units import _ID import gc ATECC = unit.get(unit.ID, (21,22)) gc.collect()
Oh cool, I got import units._ID to work.