Search found 61 matches

by wangshujun@tom.com
Wed Oct 12, 2022 12:49 am
Forum: ESP32 boards
Topic: Micropython SPWM
Replies: 2
Views: 18959

Re: Micropython SPWM

ESP32's microython implements spwm. The best module to use should be rmt, which sends half a cycle of data at a time
by wangshujun@tom.com
Wed May 25, 2022 9:21 am
Forum: Other Boards
Topic: imxrt1060 usb drives
Replies: 8
Views: 3008

Re: imxrt1060 usb drives

The firmware can operate normally on repl
And when inputting ctrl-d on the abnormal USB, I saw the board reset on uart1
It seems that the USB port of my board is incompatible with the official development board
Can you share how to specify UART as the default repl
by wangshujun@tom.com
Tue May 24, 2022 1:51 am
Forum: Other Boards
Topic: imxrt1060 usb drives
Replies: 8
Views: 3008

Re: imxrt1060 usb drives

MIMXRT1060_EVK-20220117-v1.18.hex There are external 8-megabit spinor and 32-megabit SDRAM on the board. Check that the address is consistent with the official address guess 1. Some programs stopped running after USB initialization 2. The program has been running normally, but the repl cannot be obt...
by wangshujun@tom.com
Mon May 23, 2022 6:11 am
Forum: Other Boards
Topic: imxrt1060 usb drives
Replies: 8
Views: 3008

Re: imxrt1060 usb drives

Supplement: after checking the source program, the vid & PID reported by the usbser device identified on otg1 is consistent with the source program
by wangshujun@tom.com
Mon May 23, 2022 2:30 am
Forum: Other Boards
Topic: imxrt1060 usb drives
Replies: 8
Views: 3008

Re: imxrt1060 usb drives

I don't use the original development board. The firmware burning uses usb-otg1. The burning tool uses the official tool. At present, a usbser device is prompted on this port, but the application cannot be opened (Windows system, no permission is required) If the default repl port is on the otg2 port...
by wangshujun@tom.com
Mon May 23, 2022 2:18 am
Forum: Programs, Libraries and Tools
Topic: Micropython Display To Pc Screen
Replies: 15
Views: 5556

Re: Micropython Display To Pc Screen

You can take a look at the implementation of openmv, which contains the code to display the internal cache to the IDE. Openmv is an extended implementation of micro python, which should be more promising for transplantation
by wangshujun@tom.com
Fri May 20, 2022 9:47 am
Forum: Other Boards
Topic: imxrt1060 usb drives
Replies: 8
Views: 3008

imxrt1060 usb drives

I have an imxrt1062 board in hand. After burning the 1060 firmware provided by the website, I recognize a USB ser device on the USB port, but it can't be opened. Would you like to ask if I need a special driver to use it
by wangshujun@tom.com
Fri May 20, 2022 6:35 am
Forum: ESP32 boards
Topic: HUB75 display on ESP-WROOM-32
Replies: 7
Views: 6293

Re: HUB75 display on ESP-WROOM-32

I tried on esp32 128 × 64 hub75 uses C module to drive, use the hardware is SPI + DMA. In the actual test, it can work stably in rgb444 mode, but it can not reach the expected rgb555 mode. The display interface uses FB. In the future, it is considered that the 8-bit spi of esp32s3 may achieve the ex...
by wangshujun@tom.com
Tue May 17, 2022 1:21 am
Forum: ESP32 boards
Topic: ESP32 + Wiznet 5500 or Ethernet module
Replies: 6
Views: 3730

Re: ESP32 + Wiznet 5500 or Ethernet module

Esp32 supports Mac ,can realize wired network with a PHY
by wangshujun@tom.com
Sun Apr 24, 2022 7:16 am
Forum: ESP32 boards
Topic: Can't flash an ESP32-S2
Replies: 18
Views: 7288

Re: Can't flash an ESP32-S2

It seems that you have successfully refreshed the mpy firmware, but repl is on the USB port. You can recompile the firmware and cancel the USB option