百问网韦老师 D1 开发板 ---- 东山哪吒STU

[whycan]

购买链接： https://item.taobao.com/item.htm?id=669363784178

[whycan]

验证体验东山哪吒STU开发板，更详细的配套视频的文档，我们将会在下周同步推出，敬请期待！

https://riscv64.dongshanpi.com/DongshanNezhaSTU/03-QuickStart/

https://riscv64.dongshanpi.com/DongshanNezhaSTU/05-Tina-SDKDevelopmentGuide/

[whycan]

待编辑 .......

[whycan]

[whycan]

待编辑 .......

[baiwen]

@whycan 在 D1 开发板 东山哪吒STU 中说：

验证体验东山哪吒ST

晕哥拍照就是帅

[whycan]

【固件发布】D1哪吒HDMI测试固件20210804（开机HDMI就有小企鹅启动logo）
https://bbs.aw-ol.com/topic/297/share/3

这个demo直接可以运行，无需LCD，只要接HDMI显示器即可。

[whycan]

添加 SPI NOR FLASH 支持

device/config/chips/d1/configs/hdmionly/linux-5.4/config-5.4 添加配置：

CONFIG_MTD_SPI_NOR=y

device/config/chips/d1/configs/hdmionly/linux-5.4/board.dts 关于 spi0 的配置：

&spi0 {
        clock-frequency = <100000000>;
        pinctrl-0 = <&spi0_pins_a &spi0_pins_b>;
        pinctrl-1 = <&spi0_pins_c>;
        pinctrl-names = "default", "sleep";
        /*spi-supply = <&reg_dcdc1>;*/
        spi_slave_mode = <0>;
        spi0_cs_number = <1>;
        spi0_cs_bitmap = <1>;
        status = "okay";

        spi-nand@0 {
                compatible = "spi-nand";
                spi-max-frequency=<0x5F5E100>;
                reg = <0x0>;
                spi-rx-bus-width=<0x04>;
                spi-tx-bus-width=<0x04>;
                status="disabled";
        };

        spi-nor@0 {
                compatible = "jedec,spi-nor";
                spi-max-frequency=<30000000>;
                reg = <0x0>;
                spi-rx-bus-width=<0x01>;
                spi-tx-bus-width=<0x01>;
                status="okay";
        };
};

启动日志：

[    1.185294] spi-nor spi0.0: s25fl064k (8192 Kbytes)
[    1.193668] libphy: Fixed MDIO Bus: probed
[    1.198241] CAN device driver interface

[whycan]

board.dts

删除PC3：

        spi0_pins_a: spi0@0 {
                pins = "PC2", "PC4", "PC5","PC7", "PC6"; /*clk mosi miso hold wp*/
                function = "spi0";
                muxsel = <2>;
                drive-strength = <10>;
        };

        spi0_pins_b: spi0@1 {
                pins = "PC7", "PC6";
                function = "spi0";
                muxsel = <2>;
                drive-strength = <10>;
                bias-pull-up;   /* only CS should be pulled up */
        };

        spi0_pins_c: spi0@2 {
                pins = "PC2", "PC4", "PC5","PC6", "PC7";
                function = "gpio_in";
                muxsel = <0>;
                drive-strength = <10>;
        };

spi0 配置：

&spi0 {
        clock-frequency = <100000000>;
        pinctrl-0 = <&spi0_pins_a &spi0_pins_b>;
        pinctrl-1 = <&spi0_pins_c>;
        pinctrl-names = "default", "sleep";
        cs-gpios = <&pio PC 3 GPIO_ACTIVE_HIGH>, <&pio PC 0 GPIO_ACTIVE_HIGH>;
        spi_slave_mode = <0>;
        status = "okay";

        spi-nor@0 {
                compatible = "jedec,spi-nor";
                spi-max-frequency=<30000000>;
                reg = <0x0>;//片选0
                spi-rx-bus-width=<0x01>;
                spi-tx-bus-width=<0x01>;
                status="okay";
        };

        spi-nor@1 {
                compatible = "jedec,spi-nor";
                spi-max-frequency=<30000000>;
                reg = <0x1>;//片选1
                spi-rx-bus-width=<0x01>;
                spi-tx-bus-width=<0x01>;
                status="okay";
        };

};

启动日志：

[    1.197328] spi-nor spi0.0: s25fl064k (8192 Kbytes)
[    1.205463] spi-nor spi0.1: mx25l12805d (16384 Kbytes)

[baiwen]

好多flash哇 焊接技术

[yixiuge]

我和我的小伙伴都惊呆了，居然这么叠罗汉！

[tigger]

@yixiuge
想知道最多可以叠几个？