You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
2.7 KiB
100 lines
2.7 KiB
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2019 Ha Thach (tinyusb.org)
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
|
|
#include "bsp/board.h"
|
|
#include "tusb.h"
|
|
|
|
//------------- prototypes -------------//
|
|
static void cdc_task(void);
|
|
|
|
/*------------- MAIN -------------*/
|
|
int main(void)
|
|
{
|
|
board_init();
|
|
|
|
tusb_init();
|
|
|
|
while (1)
|
|
{
|
|
tud_task(); // tinyusb device task
|
|
cdc_task();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// echo to either Serial0 or Serial1
|
|
// with Serial0 as all lower case, Serial1 as all upper case
|
|
static void echo_serial_port(uint8_t itf, uint8_t buf[], uint32_t count)
|
|
{
|
|
for(uint32_t i=0; i<count; i++)
|
|
{
|
|
if (itf == 0)
|
|
{
|
|
// echo back 1st port as lower case
|
|
if (isupper(buf[i])) buf[i] += 'a' - 'A';
|
|
}
|
|
else
|
|
{
|
|
// echo back 2nd port as upper case
|
|
if (islower(buf[i])) buf[i] -= 'a' - 'A';
|
|
}
|
|
|
|
tud_cdc_n_write_char(itf, buf[i]);
|
|
}
|
|
tud_cdc_n_write_flush(itf);
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// USB CDC
|
|
//--------------------------------------------------------------------+
|
|
static void cdc_task(void)
|
|
{
|
|
uint8_t itf;
|
|
|
|
for (itf = 0; itf < CFG_TUD_CDC; itf++)
|
|
{
|
|
// connected() check for DTR bit
|
|
// Most but not all terminal client set this when making connection
|
|
// if ( tud_cdc_n_connected(itf) )
|
|
{
|
|
if ( tud_cdc_n_available(itf) )
|
|
{
|
|
uint8_t buf[64];
|
|
|
|
uint32_t count = tud_cdc_n_read(itf, buf, sizeof(buf));
|
|
|
|
// echo back to both serial ports
|
|
echo_serial_port(0, buf, count);
|
|
echo_serial_port(1, buf, count);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|