rt-thread-official/examples/ymodem/echo.c

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#include <ymodem.h>
static rt_device_t _odev;
static enum rym_code _rym_echo_data(
struct rym_ctx *ctx,
rt_uint8_t *buf,
rt_size_t len)
{
rt_device_write(_odev, 0, buf, len);
return RYM_CODE_ACK;
}
rt_err_t rym_cat_to_dev(rt_device_t idev, rt_device_t odev)
{
struct rym_ctx rctx;
rt_err_t res;
_odev = odev;
rt_kprintf("entering RYM mode\n");
odev->flag &= ~RT_DEVICE_FLAG_STREAM;
res = rt_device_open(odev, 0);
if (res != RT_EOK)
{
rt_kprintf("open output device error: 0x%x", -res);
return res;
}
res = rym_recv_on_device(&rctx, idev,
RT_NULL, _rym_echo_data, RT_NULL, 1000);
rt_device_close(_odev);
rt_kprintf("leaving RYM mode with code %X\n", res);
return res;
}
#ifdef RT_USING_FINSH
#include <finsh.h>
void rym_cat_vcom(void)
{
extern rt_err_t rym_cat_to_dev(rt_device_t idev, rt_device_t odev);
rt_device_t idev, odev;
rt_thread_delay(RT_TICK_PER_SECOND*10);
idev = rt_device_find("uart1");
if (!idev)
{
rt_kprintf("could not find idev\n");
}
odev = rt_device_find("vcom");
if (!odev)
{
rt_kprintf("could not find odev\n");
}
rym_cat_to_dev(idev, odev);
}
FINSH_FUNCTION_EXPORT(rym_cat_vcom, test the YModem);
#endif