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请教以下,你的问题后来是怎么解决的,我是用SPI2接MCP2515,但是设备一直没找到,报了以下三句,复位的时候用示波器抓不到波形
[ 1.703279] rockchip-spi ff1e0000.spi: Failed to request TX DMA channel
[ 1.703299] rockchip-spi ff1e0000.spi: Failed to request RX DMA channel
[ 1.703310] rockchip-spi ff1e0000.spi: no high_speed pinctrl state |
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