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is an isp chip memory necessary due to the bootloader?

PostPosted: Thu Feb 11, 2016 4:08 am
by ingeea
Hello,

all the esp module contain the esp chip itself, an isp Flash Memory chip and a PCB Antenne. Is this Memory chip necessary? can i load the Code directely to the esp chip without this additional chip?

I have tried it using arduino IDE but that wasn t succeded. So can i say that the bootloader in the esp chip is written so that the user Programm is always saved in an additional SPI chip Memory?

If yes can i use any spi chip Memory? or other conditions must be respected? As i have checked the different modules contain different spi chip Memory.

what are you thinking? thnx.

Re: is an isp chip memory necessary due to the bootloader?

PostPosted: Thu Feb 11, 2016 9:01 am
by martinayotte
Yes, you need an external flash chip, otherwise you have only few space in RAM to run your code, and it is volatile.
You can use almost any SPI Flash chips, they are cheap on eBay, such as W25Q32.

Re: is an isp chip memory necessary due to the bootloader?

PostPosted: Tue Feb 16, 2016 3:17 am
by ingeea
done! thank you