Search found 16 matches

by patrick.pollet
Wed Oct 11, 2017 12:49 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

@pythoncoder :

Yes maybe, but i already checked all the joints with a binocular and it seems nice and regular.
So it's not my preferred hypothesis but the devil is often in the solder joints ... ;)
by patrick.pollet
Tue Oct 10, 2017 1:01 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

Perhaps the following may help someone else. After using a laboratory power supply to power the ESP32 i had better results but the brownout detection did not totaly disappear (even with this power supply able to deliver 3A). And after a while it became more and more frequent. Finally i decided to us...
by patrick.pollet
Mon Oct 09, 2017 11:17 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

Ok, thanks.

I did not understood the warning as an issue, but the reboot yes :-)
Especially because it never occurred before with the same ESP32 board, same cable and same computer.

I will retry with a laboratory power supply.
by patrick.pollet
Mon Oct 09, 2017 3:02 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

Hello Loboris, i just updated source and tools to the last release and so re-compile a firmware but then i had a never seen before problem : >>> import network W (13248) phy_init: failed to load RF calibration data (0x1102), falling back to full calibration Brownout detector was triggered As i try t...
by patrick.pollet
Mon Sep 18, 2017 4:14 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

May i suggest little changes ? In machine_uart.c, line 218 switch (uart_num) { case UART_NUM_0: self->rx = UART_PIN_NO_CHANGE; // GPIO 3 self->tx = UART_PIN_NO_CHANGE; // GPIO 1 break; case UART_NUM_1: self->rx = 15; self->tx = 4; break; case UART_NUM_2: self->rx = 26; self->tx = 25; break; } To use...
by patrick.pollet
Mon Sep 18, 2017 12:38 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

@loboris,

Once again thanks for your precious help.
by patrick.pollet
Mon Sep 18, 2017 10:56 am
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

Dear All, I think i encountered an issue with UART : Trying UART1 _________________________________________________________ >>> from machine import UART >>> u = UART(1) >>> u.read() Guru Meditation Error of type LoadProhibited occurred on core 0. Exception was unhandled. Register dump: PC : 0x400880...
by patrick.pollet
Thu Sep 14, 2017 2:22 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

@loboris:

ftp sever works fine now, thanks.
by patrick.pollet
Wed Sep 13, 2017 4:24 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

If that helps,

network.ftp.status()

return :

(7, 0, 'Connected', 'Data: Disconnected')
by patrick.pollet
Wed Sep 13, 2017 4:22 pm
Forum: ESP32 boards
Topic: MicroPython on ESP32 with SPIRAM support
Replies: 457
Views: 145605

Re: MicroPython on ESP-WROVER with 4MB of psRAM

Dear Loboris, once again thanks for this awesome work and for your fast answers. I just pulled the new release, compile and flash an esp32-psram. The ftp server is present and i can connect to it (with filezilla), i can see the content of "/", but if i try to open "flash" (CWD flash) i have an error...