MicroPython Forum (Archive)

Trying to flash the latest MicroPython to a 16M Wemos D1 Mini Pro. Hit a problem where it would get stuck in a boot loop. Initially, I thought it was a problem with make deploy not including the write esp_init_data_default.bin to 0xffc000 in the esptool.py command, like I had done manually before. W...

FYI how I built the esp-open-sdk:
https://github.com/pfalcon/esp-open-sdk/issues/342
https://github.com/daviddpd/esp-open-sd ... 0717a62a28

Full error: Mikes-MacBook-Pro:esp8266 mike$ make Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity. GEN build-GENERIC/genhdr/mpversion.h GEN build-GENERIC/genhdr/qstr.i.last GEN build-GENERIC/genhdr/qstr.split GEN build-GENERIC/genhdr/qstrdefs.collected.h QSTR updated...

On a fresh macOS Mojave install, with pfalcon's esp-open-sdk built in a case sensitive dmg with VENDOR_SDK = 2.2.1 I hit an issue when trying to make in /ports/esp8266. ./etshal.h:9:6: error: conflicting types for 'ets_delay_us' void ets_delay_us(uint16_t us); If I change it to uint32_t it works. In...

Normally they support writing RGB666, RGB565 or RGB444 after a few init commands.
I usually use RGB565 as it fits 1 pixel in 2 bytes, making writes faster and I often don’t need the extra colour precision of RGB666.

Nice! I'll update the driver with support for this display.

Give this a try: i2c = I2C(sda=Pin("Y8"), scl=Pin("Y6")) display = ssd1327.SSD1327_I2C(128, 128, i2c) # Unlock display.write_cmd(0xFD) display.write_cmd(0x12) # Display off display.write_cmd(0xAE) # Set column address 0-127 display.write_cmd(0x15) display.write_cmd(0x00) # was 0x08 on 96x96 ((128-wi...

Should be an easy fix with some init registers. I’ll take a look at some of the Arduino drivers and let you know what needs to change

If you have that DevEBox board, that little W25Q16 chip above the micro SD slot is the 16MB SPI Flash. It's wired to SPI1, leaving SPI2 and 3 free for use by other devices. It's CS pin is exposed on A15, so you could have other SPI devices on the SPI1 bus.

On the F411 board , I demonstrated in the readme attaching an external W25Q128 16MB SPI flash module. The particular breakout I was using only supported SPI mode, instead of the faster QSPI mode. Still, 4, 8 or 16MB more to play with. In mpconfigboard.h you can toggle between using the onboard flash...