✨ Add Execute In Place (XIP) Module #244
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to shrink program size ;)
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This PR adds an Execute In Place (XIP) module to the processor that allows to directly execute code (and read constant data) from an external SPI flash.
The XIP is enabled by the new
IO_XIP_ENgeneric. The flash is connected via the newxip_*signals. Currently, only standard SPI mode is supported. Quad SPI mode (QSPI) is planned for the future. 😉The XIP module provides a programmable address mapping, so the XIP flash can be mapped to any 256 MB aligned address segment in the processor's address space (for example starting at address
0x20000000).The documentation of the XIP module will be available here: Online data sheet: Execute In Place Module (XIP)