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FMC外设用于将STM32 MPU与SLC 8位或16位NAND闪存设备接口。

FMC NAND控制器支持:

  • 与静态内存映射设备的接口,包括:


    • NOR Flash memory

    • Static or pseudo-static random access memory (SRAM, PSRAM)

    • NAND Flash memory with 4-bit/8-bit BCH hardware ECC

  • 支持8bit,16bit数据宽度
  • 可编程纠错能力(ECC)使用BCH8,BCH4或Hamming
  • 支持可编程的页面大小为2048、4096和8192字节
  • 支持可编程的存储器时序



DomainPeripheralRuntime allocationComment
InstanceCortex-A7
secure
(OP-TEE)
Cortex-A7
non-secure
(Linux)
Cortex-M4

(STM32Cube)
Mass storageFMCFMC


&fmc {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&fmc_pins_a>;
	pinctrl-1 = <&fmc_sleep_pins_a>;
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";

	nand: nand@0 {
		reg = <0>;
		nand-on-flash-bbt;
		#address-cells = <1>;
		#size-cells = <1>;
		nand-ecc-strength = <4>;
		nand-ecc-step-size = <512>;

		partition@0 {
			label = "fsbl";
			reg = <0x0 0x200000>;
		};
		partition@200000 {
			label = "ssbl1";
			reg = <0x200000 0x400000>;
		};
		partition@40000 {
			label = "ssbl2";
			reg = <0x400000 0x600000>;
		};
		partition@600000 {
			label = "UBI";
			reg = <0x600000 0xf800000>;
		};
	};
};
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