Missing System Memory Map for Ibex Demo System about ibex-demo-system

[marnovandermaas]

Unfortunately, we don't have documentation for this. But we do have the software abstractions to deal with this. For example, if you want to interact with SPI you can include https://github.com/lowRISC/ibex-demo-system/blob/main/sw/c/common/spi.h
This also has the register offsets in it. However, you should not need these as you can use the functions to interact with the block:

void spi_init(spi_t *spi, spi_reg_t reg, uint32_t speed);
void spi_send_byte_blocking(spi_t *spi, char c);
spi_status_t spi_get_status(spi_t *spi);

Additionally, you can find the offsets and size of regions in the RTL: https://github.com/lowRISC/ibex-demo-system/blob/main/rtl/system/ibex_demo_system.sv#L32-L63