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