87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-05-01 flyingcys first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#ifdef BSP_USING_SPI
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#define BUS_NAME "spi0"
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#define SPI_NAME "spi00"
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static struct rt_spi_device *spi_dev = RT_NULL;
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/* attach spi5 device */
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static int rt_spi_device_init(void)
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{
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struct rt_spi_configuration cfg;
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rt_hw_spi_device_attach(BUS_NAME, SPI_NAME, RT_NULL);
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cfg.data_width = 8;
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cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_NO_CS;
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cfg.max_hz = 10 *1000 *1000;
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spi_dev = (struct rt_spi_device *)rt_device_find(SPI_NAME);
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if (RT_NULL == spi_dev)
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{
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rt_kprintf("spi sample run failed! can't find %s device!\n", SPI_NAME);
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return -RT_ERROR;
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}
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rt_spi_configure(spi_dev, &cfg);
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return RT_EOK;
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}
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INIT_APP_EXPORT(rt_spi_device_init);
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/* spi loopback mode test case */
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static int spi_sample(int argc, char **argv)
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{
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rt_uint8_t t_buf[8], r_buf[8];
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int i = 0;
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static struct rt_spi_message msg1;
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if (argc != 9)
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{
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rt_kprintf("Please Usage:\n");
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rt_kprintf("spi_sample 1 2 3 4 5 6 7 8\n");
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return -RT_ERROR;
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}
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for (i = 0; i < 8; i++)
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{
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t_buf[i] = atoi(argv[i+1]);
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}
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msg1.send_buf = &t_buf;
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msg1.recv_buf = &r_buf;
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msg1.length = sizeof(t_buf);
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msg1.cs_take = 1;
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msg1.cs_release = 0;
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msg1.next = RT_NULL;
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rt_spi_transfer_message(spi_dev, &msg1);
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rt_kprintf("spi rbuf : ");
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for (i = 0; i < sizeof(t_buf); i++)
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{
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rt_kprintf("%x ", r_buf[i]);
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}
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rt_kprintf("\nspi loopback mode test over!\n");
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return RT_EOK;
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}
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MSH_CMD_EXPORT(spi_sample, spi loopback test);
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#endif /* BSP_USING_SPI */
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