Thanks, that works.
And I try flash Adafruit UF2 bootloader to 0x0000, then flash MicroPython .uf2 firmware seems fine.
Search found 75 matches
- Sun May 08, 2022 7:03 pm
- Forum: Other Boards
- Topic: How to flash bootloader to ATSAMD board?
- Replies: 2
- Views: 1965
- Fri May 06, 2022 8:03 pm
- Forum: Other Boards
- Topic: How to flash bootloader to ATSAMD board?
- Replies: 2
- Views: 1965
How to flash bootloader to ATSAMD board?
I want to flash MicroPython .uf2 firmware to ATSAMD board, is it have specific MicroPython version of bootloader? how? Or can I refer this: https://github.com/adafruit/uf2-samdx1/blob/master/bin-README.md To flash CircuitPython bootloader, then use the bootloader to flash MicroPython firmware? Or if...
- Sat Mar 26, 2022 3:32 pm
- Forum: Other Boards
- Topic: RTL8720DN for MicroPython?
- Replies: 8
- Views: 3235
Re: RTL8720DN for MicroPython?
RTL8720DN on Wio Terminal seems use as wireless connectivity co-processor, not running MicroPython.
- Sat Mar 26, 2022 12:43 pm
- Forum: Other Boards
- Topic: RTL8720DN for MicroPython?
- Replies: 8
- Views: 3235
Re: RTL8720DN for MicroPython?
I guess 16Mbit (not ensure), https://docs.ai-thinker.com/_media/bw16_kit_specification-2021-0730.pdf page 5 additional: https://files.seeedstudio.com/products/102110419/Basic%20documents/AN0400%20Ameba-D%20Application%20Note_v3_watermark.pdf page 83, 85, 88, 97. This is MicroPython implement on RTL8...
- Sat Mar 26, 2022 9:11 am
- Forum: Other Boards
- Topic: RTL8720DN for MicroPython?
- Replies: 8
- Views: 3235
Re: RTL8720DN for MicroPython?
That has 512KB SRAM (Optional 4MB PSRAM) for Cortex-M4F, QSPI flash (similar RP2040).- Fri Mar 25, 2022 3:53 pm
- Forum: Other Boards
- Topic: RTL8720DN for MicroPython?
- Replies: 8
- Views: 3235
RTL8720DN for MicroPython?
https://www.aliexpress.com/item/1005001320366011.html?spm=a2g0o.productlist.0.0.73e81d61Sbqob2&algo_pvid=49d8ecab-cb54-4fbc-ab95-e2e821f38be9&algo_exp_id=49d8ecab-cb54-4fbc-ab95-e2e821f38be9-2&pdp_ext_f=%7B%22sku_id%22%3A%2212000021807046838%22%7D&pdp_pi=-1%3B5.3%3B-1%3B-1%40salePrice%3BUSD%3Bsearc...
- Tue Sep 07, 2021 9:25 pm
- Forum: Other Boards
- Topic: [ATSAMD] How to flash firmware to board?
- Replies: 0
- Views: 2944
[ATSAMD] How to flash firmware to board?
Board: 'ADAFRUIT_ITSYBITSY_M4_EXPRESS', or 'MINISAM_M4'
Way 1: firmware.bin, use J-Link SWD interface, which address should I flash the .bin firmware to board? I try flash it to 0x0, but can't boot correctly.
Way 2: firmware.uf2, how install uf2 bootloader to board?
Way 1: firmware.bin, use J-Link SWD interface, which address should I flash the .bin firmware to board? I try flash it to 0x0, but can't boot correctly.
Way 2: firmware.uf2, how install uf2 bootloader to board?
- Thu Jul 15, 2021 2:15 pm
- Forum: Other Boards
- Topic: [Solved] How to setup ESP32-S2 build environment?
- Replies: 2
- Views: 4865
Re: [Solved] How to setup ESP32-S2 build environment?
Build ESP32-S2 required ESP-IDF version >= v4.3
- Thu Jul 01, 2021 6:51 pm
- Forum: ESP32 boards
- Topic: [SOLVED] Pin.PULL_UP not working?
- Replies: 4
- Views: 2622
Re: Pin.PULL_UP not working?
GPIO-34, GPIO-35, GPIO-36, GPIO-39 input only pins, These pins don’t have internal pull-ups or pull-down resistors.
https://randomnerdtutorials.com/esp32-p ... nce-gpios/
https://randomnerdtutorials.com/esp32-p ... nce-gpios/
- Tue Jun 29, 2021 8:29 pm
- Forum: ESP32 boards
- Topic: SDCard frequency configure on ESP32 using SPI interface.
- Replies: 0
- Views: 962
SDCard frequency configure on ESP32 using SPI interface.
I try to configure SDCard frequency (use SPI interface) and measure SPI2-SCK(GPIO-18) frequency via oscilloscope, results below: sd = SDCard(slot = 2, sck = Pin(18), miso = Pin(19), mosi = Pin(23), cs = Pin(15), freq = 20000000) 20MHz sd = SDCard(slot = 2, sck = Pin(18), miso = Pin(19), mosi = Pin(2...