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发表于 2020-9-1 02:32:36
只看该作者
沙发
請問如果要修改Uart3的速度的話，是不是修改
kernel/arch/arm/boot/dts/rk3288.dtsi 裏的
uart_gps: serial@ff1b0000 {
compatible = "rockchip,serial";
reg = <0xff1b0000 0x100>;
interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
clock-frequency = <24000000>;
clocks = <&clk_uart3>, <&clk_gates6 11>;
clock-names = "sclk_uart", "pclk_uart";
current-speed = <115200>;
reg-shift = <2>;
reg-io-width = <4>;
dmas = <&pdma1 7>, <&pdma1 8>;#dma-cells = <2>;
pinctrl-names = "default";
pinctrl-0 = <&uart3_xfer &uart3_cts &uart3_rts>;
status = "disabled";
};
把 115200 改成230400 或是更高的 1500000 呢 ?
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