ESP-WROOM-32 PROGMEM capacity
Boccabella David 2017-10-30 09:23:33 2870 Views1 Replies Hi Folks.
I have been working with a Teensy 3.2 on a project however the ESP-WROOM-32 is a very tempting upgrade especially in the area of speed and storage.
My project involves using 2 OLED/LCD's . The processor takes a bitmap image from PROGMEM and stores it in memory as an array, then performs mathematical functions on the bitmap and displays them to the screens using SPI.
As such 2 key things are neede3d.. Speed which the ESP-WROOM-32 can do up to 240Mhz (2.5 times faster than a Teensy)
However I am finding a lot of confusion regarding the memory of the ESP. Can someone give me an idea of the USABLE sizes.
Arduino is
Flash/PROGMEM 32k bytes
SRAM 2k bytes
EEPROM 1k byte
Teensy 3.2
Flash/PROGMEN 256k bytes
SRAM 16k bytes
EEPROM 2k bytes
ESP-WROOM-32
Flash = ????
SRAM = ???
EEPROM = ???
Many thanks
Dave
I have been working with a Teensy 3.2 on a project however the ESP-WROOM-32 is a very tempting upgrade especially in the area of speed and storage.
My project involves using 2 OLED/LCD's . The processor takes a bitmap image from PROGMEM and stores it in memory as an array, then performs mathematical functions on the bitmap and displays them to the screens using SPI.
As such 2 key things are neede3d.. Speed which the ESP-WROOM-32 can do up to 240Mhz (2.5 times faster than a Teensy)
However I am finding a lot of confusion regarding the memory of the ESP. Can someone give me an idea of the USABLE sizes.
Arduino is
Flash/PROGMEM 32k bytes
SRAM 2k bytes
EEPROM 1k byte
Teensy 3.2
Flash/PROGMEN 256k bytes
SRAM 16k bytes
EEPROM 2k bytes
ESP-WROOM-32
Flash = ????
SRAM = ???
EEPROM = ???
Many thanks
Dave
2017-11-15 17:06:17 You can download the datasheet from their website: http://espressif.com/en/esp-wroom-32/resources robert.chen
robert.chen 