Spi flash expansion and WebBase(from Pvvx)

Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)
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Re: Spi flash expansion for esp8266

By alonewolfx2
- Tue Jan 06, 2015 1:32 pm #6483
pvvx wrote:16MegBytes W25Q128FVSG:
https://www.youtube.com/watch?v=s6z3ZW6T3WQ
SDK does not support large flash. Supports any flash is only in my web-server. Publication soon...

I am waiting for this :) I am so excited :)
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Re: Spi flash expansion for esp8266

By pvvx
- Tue Jan 06, 2015 6:38 pm #6501 SDK saves configuration at [end flash] - 0x3000..0x1000 bytes.
Changing size of the flash after boot -> will switch the address config stored SDK. :)
On the next boot, configs will be read from another area. :)
The result - not sets configs and setings WiFi :)

The simplest solution, can use calls() wifi_set + ...setings :
1) Restore the size of the Flash in 512kb
2) Run the calls() settings -> configs on 0x7E000.
3) Change the size of a flash back and work next...
And so every time. :)

#include "spi_flash.h"
extern SpiFlashChip * flashchip;

if(flashchip->deviceId == 0x00newid) flashchip->chip_size = 0x???00000;
else flashchip->chip_size = 0x0080000;

Works with 16MB changing flashchip-> chip_size:
SpiFlashOpResult spi_flash_erase_sector(uint16 sec);
SpiFlashOpResult spi_flash_write(uint32 des_addr, uint32 *src_addr, uint32 size);
SpiFlashOpResult spi_flash_read(uint32 src_addr, uint32 *des_addr, uint32 size);
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