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Pycom Official Documentation for WiPy 2.0, Wipy 3.0 LoPy, Lopy4, SiPy, FiPy, GPy, etc.
https://docs.pycom.io
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can not update firmware #96

Closed mjmillere80 closed 6 years ago

mjmillere80 commented 6 years ago

We have a few W01 modules. We are trying to implement them in a new design but we are unable to update the firmware. I have grounded p2 (pin5) then momentarily grounded the reset pin but the W01 will not enter bootloader mode. By watching the REPL it appears to reset but then boots normally regardless of the grounding of p2. Am I missing something here?

Xykon commented 6 years ago

Do you have anything connected to P8? If P8 is high at boot time, the state of P2 is ignored and the module will not go into update mode.

mjmillere80 commented 6 years ago

Thank you for the quick response. I will check on this and get back to you as soon as I can.

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From: Christian Ehlers notifications@github.com Sent: Friday, July 27, 2018 12:05:15 PM To: pycom/pycom-documentation Cc: Mike Miller; Author Subject: Re: [pycom/pycom-documentation] can not update firmware (#96)

Do you have anything connected to P8? If P8 is high at boot time, the state of P2 is ignored and the module will not go into update mode.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://github.com/pycom/pycom-documentation/issues/96#issuecomment-408480257, or mute the threadhttps://github.com/notifications/unsubscribe-auth/AeDjox8kOHwXzQ-sQ59wFV45owPItaEHks5uK0hLgaJpZM4Vj_Oj.

mjmillere80 commented 6 years ago

Grounded P8... No change except that it fails without trying to retrieve the new file it immediately fails and asks me to check connections. Before P8 was grounded it timed out and then failed.

Xykon commented 6 years ago

What kind of output do you get on the serial port?

If the module is in firmware update mode it should say "Waiting for download" as the last message after reset. Then you should be able to connect with the firmware update tool.

mjmillere80 commented 6 years ago

rst:0x1 (POWERON_RESET),boot:0x32 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0x00 clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:QIO, clock div:1 load:0x3fff0008,len:4 load:0x3fff000c,len:148 load:0x40078000,len:11876 ho 0 tail 12 room 4 load:0x40080000,len:268 entry 0x40080034 MicroPython v1.8.6-621-g17ee404e on 2017-05-25; WiPy with ESP32 Type "help()" for more information.

mjmillere80 commented 6 years ago

Sorry I still had Atom up the last time I tried this. I stopped atom and ran the firmware updater again. Now I have a different error. I am updating from a file to 1.17.0.b1. Now I am getting "Failed to connect to ESP32: Invalid head of packet (\x08)". I have used this firmware file on hundreds of WiPy 3.0's with no problem.

mjmillere80 commented 6 years ago

Sorry I still had Atom up the last time I tried this. I stopped atom and ran the firmware updater again. Now I have a different error. I am updating from a file to 1.17.0.b1. Now I am getting "Failed to connect to ESP32: Invalid head of packet (\x08)". I have used this firmware file on hundreds of WiPy 3.0's with no problem.

Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10

From: Christian Ehlers notifications@github.com Sent: Friday, July 27, 2018 2:08:23 PM To: pycom/pycom-documentation Cc: Mike Miller; Author Subject: Re: [pycom/pycom-documentation] can not update firmware (#96)

What kind of output do you get on the serial port?

If the module is in firmware update mode it should say "Waiting for download" as the last message after reset. Then you should be able to connect with the firmware update tool.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://github.com/pycom/pycom-documentation/issues/96#issuecomment-408512371, or mute the threadhttps://github.com/notifications/unsubscribe-auth/AeDjo6hHUrWvtUZbLRutKOP1366SU9X6ks5uK2UngaJpZM4Vj_Oj.

Xykon commented 6 years ago

As long as you don't get the "waiting for download" message on reset but the MicroPython prompt, you will not be able to connect with the firmware updater. Are you able to capture the state of P2 and P8 during reset with an Oscilloscope? P2 must be low and P8 must not be high.

It might be worth double-checking that you're using the correct pins: https://docs.pycom.io/chapter/datasheets/downloads/w01-pinout.pdf

mjmillere80 commented 6 years ago

I have by means of wire and solder grounded both pins for the update. A scope is available if needed however. Sent from Mailhttps://go.microsoft.com/fwlink/?LinkId=550986 for Windows 10

From: Christian Ehlers notifications@github.com Sent: Friday, July 27, 2018 2:39:28 PM To: pycom/pycom-documentation Cc: Mike Miller; Author Subject: Re: [pycom/pycom-documentation] can not update firmware (#96)

As long as you don't get the "waiting for download" message on reset but the MicroPython prompt, you will not be able to connect with the firmware updater. Are you able to capture the state of P2 and P8 during reset with an Oscilloscope? P2 must be low and P8 must not be high.

It might be worth double-checking that you're using the correct pins: https://docs.pycom.io/chapter/datasheets/downloads/w01-pinout.pdf

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://github.com/pycom/pycom-documentation/issues/96#issuecomment-408519390, or mute the threadhttps://github.com/notifications/unsubscribe-auth/AeDjo-1Cn1jMaZNDUaR9qsHrqeF15ENQks5uK2xwgaJpZM4Vj_Oj.

mjmillere80 commented 6 years ago

After insuring P8 was low, it was high and re-soldering the wire on P2 it worked as advertised thank you. I consider this closed.