31 lines
795 B
C
31 lines
795 B
C
//未完成
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <drv_spi.h>
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#include <drv_gpio.h>
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static int spi_attach(void)
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{
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return rt_hw_spi_device_attach("spi2", "spi20", GET_PIN(B,12));
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}
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// INIT_DEVICE_EXPORT(spi_attach);
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static int spi_transfer_one_data(void)
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{
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rt_err_t ret =RT_EOK;
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struct rt_spi_device *spi_d20 = (struct rt_spi_device *)rt_device_find("spi20");
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struct rt_spi_configuration cfg;
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cfg.data_width = 8;
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cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB;
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cfg.max_hz =1 *1000 *1000;
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rt_spi_configure(spi20,&cfg);
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rt_uint8_t sendBuff = 0xDA;
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rt_uint8_t recvBuff = 0xF1;
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ret =rt_spi_transfer(spi20,&sendBuff,&recvBuff,1);
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rt_kprintf("sret = %d\n",ret);
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}
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MSH_CMD_EXPORT(spi_transfer_one_data, spi transfer one data); |