ESP8285 uses a DOUT mode internal flash at 1MB. I'm using my own devboard (as I usually do). No functionality problems that I can see /except/ when it is flashing itself. I did now notice I can put in some Wait_SPI_Idle(flashchip)'s and it will freeze even on them! https://github.com/esp8266/Arduino...
Search found 148 matches
Re: Difficulty self-flashing the '8285
by cnlohr ¦ Sun Aug 28, 2016 12:59 am ¦ Forum: Hardware Specific ¦ Topic: Difficulty self-flashing the '8285 ¦ Replies: 11 ¦ Views: 9291Re: Difficulty self-flashing the '8285
by cnlohr ¦ Sun Aug 28, 2016 12:00 am ¦ Forum: Hardware Specific ¦ Topic: Difficulty self-flashing the '8285 ¦ Replies: 11 ¦ Views: 9291Ok. This is getting weird. If I try reading the data first into a buffer on the stack, i.e. spi_flash_write/SPIRead/ets_memcpy( buf, (uint8_t*)0x40200000 + from1, SRCSIZE ); -- then SPIErase/spi_erase_sector it, then it freezes on the erase. Maybe there's some status I need to check? hmm. This does ...
Re: Input interrupt tests
by cnlohr ¦ Sat Aug 27, 2016 8:54 pm ¦ Forum: ESPUSB - Software ¦ Topic: Input interrupt tests ¦ Replies: 8 ¦ Views: 12973...any published materials about high speed GPIO / DMA??
Difficulty self-flashing the '8285
by cnlohr ¦ Sat Aug 27, 2016 3:33 pm ¦ Forum: Hardware Specific ¦ Topic: Difficulty self-flashing the '8285 ¦ Replies: 11 ¦ Views: 9291I'm not sure what's up with it, but I use a flash re-writer to self-program USB and Wifi. It works on ESP8266's and it almost works on the '8285's, but... When I flash, it burns to the area above 512k. Then, it verifies the MD5Sum of the data. This all works, but, when it copies into the main bank, ...
