What options do I have to expend external RAM to a STM32F0?

[bluenow1896]

I tried to read through datasheets and STM32F0 programming manuals, but can't find any of clue.

I do understand that the STM32F0 is been used in low power and cost sensitive environment, usually not come with huge RAM. If ever huge RAM needed, the electrical design turned to STM32F4 with external SDRAM. But I'm still wondering, the Cortex-M0 comes with 32bit address, so is there any implementation provided to STM32F0 to work with an external RAM component/module ?

[waclawek.jan]

No.

JW

[S.Ma]

Well you can use external SPI SRAM although you'll have to do the protocol to send and receive data from it by SW. QSPI interface for easy read, OCTOSPI for easy read and write?

[bluenow1896]

If doing that way, the SPI SRAM to the Cortex-M0 is a peripheral device rather than RAM in a memory space.

Anyone knows any of vendor implementation to allow Cortex-M0 work with external SDRAM?