- Fri May 29, 2015 8:36 am
#18863
Using an external SRAM IC, would it be possible to augment the onboard RAM in some way?
- Fri May 29, 2015 5:38 pm
#18909
There is a simple two letter answer to this: no. See the discussion on support expansion of flash memory which overlaps this.
Changing the RAM size involves a new chip designed with a new expanded RAM library element -- not something that will happen in the next few years, I suspect. Increasing the Flash size is entirely a different matter as this involve swapping out the Flash module and is just a component change on a board.
Changing the RAM size involves a new chip designed with a new expanded RAM library element -- not something that will happen in the next few years, I suspect. Increasing the Flash size is entirely a different matter as this involve swapping out the Flash module and is just a component change on a board.
Please see my Developer FAQ for Q&A on nodeMCU Lua before asking a question here that's already been answered. This and the other official documentation should be your first reference for developing Lua Apps
- Fri May 29, 2015 6:17 pm
#18910
Do you say "no" because it's completely impossible or because it would be too complicated to implement.
I should have worded my question better... I know changing the on board memory is impossible since it's part of the silicon.
I'm talking about adding code to the NodeMCU source to offload some of the memory use to an external SPI SRAM(or even better FRAM) IC, to store strings, numbers, process long strings, etc. and leave the primary memory for everything else that can't be offloaded.
I should have worded my question better... I know changing the on board memory is impossible since it's part of the silicon.
I'm talking about adding code to the NodeMCU source to offload some of the memory use to an external SPI SRAM(or even better FRAM) IC, to store strings, numbers, process long strings, etc. and leave the primary memory for everything else that can't be offloaded.
- Sat May 30, 2015 3:06 am
#18926
It would have to pass the spi interface.
Whats the speed difference compared to flash via spi?
Does spi access need some "driver" or is it integrated on hardware level like a address/data bus?
Cal
Whats the speed difference compared to flash via spi?
Does spi access need some "driver" or is it integrated on hardware level like a address/data bus?
Cal
