新手入门
- 积分
- 19
- 金钱
- 19
- 注册时间
- 2020-11-2
- 在线时间
- 4 小时
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1金钱
我的设备树:SPI总线:
&spi0 {
num-cs = <0x3>;
status = "okay";
device@0{
compatible = "microchip,mcp2515";
reg = <0x0>;
spi-max-frequency = <6500000>;
interrupt-parent = <&axi_gpio_0>;
interrupts = <0 29 4>;
};
};
PL gpio:
axi_gpio_0: gpio@41200000 {
#gpio-cells = <3>;
#interrupt-cells = <2>;
clock-names = "s_axi_aclk";
clocks = <&clkc 15>;
compatible = "xlnx,axi-gpio-2.0", "xlnx,xps-gpio-1.00.a";
gpio-controller ;
interrupt-controller ;
interrupt-names = "ip2intc_irpt";
interrupt-parent = <&intc>;
interrupts = <0 29 4>;
reg = <0x41200000 0x10000>;
xlnx,all-inputs = <0x1>;
xlnx,all-inputs-2 = <0x0>;
xlnx,all-outputs = <0x0>;
xlnx,all-outputs-2 = <0x0>;
xlnx,dout-default = <0x00000000>;
xlnx,dout-default-2 = <0x00000000>;
xlnx,gpio-width = <0x1>;
xlnx,gpio2-width = <0x20>;
xlnx,interrupt-present = <0x1>;
xlnx,is-dual = <0x0>;
xlnx,tri-default = <0xFFFFFFFF>;
xlnx,tri-default-2 = <0xFFFFFFFF>;
};
linux启动时LOG报错
mcp251x: probe of spi1.0 failed with error -2
MCP2515无法工作,请各路大神帮忙看看问题出在哪里,多谢!
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