FSMC Maple

fsmc_nor_psram_reg_map *regs = FSMC_NOR_PSRAM1_BASE;

fsmc_sram_init_gpios();
rcc_clk_enable(RCC_FSMC);

regs->BCR = (FSMC_BCR_WREN | FSMC_BCR_MWID_16BITS | FSMC_BCR_MTYP_NOR_FLASH | FSMC_BCR_MBKEN);

fsmc_nor_psram_set_addset(regs, 30);
fsmc_nor_psram_set_datast(regs, 30);