Files
zSoft/teensy3/ser_print.c

80 lines
2.3 KiB
C

/* Teensyduino Core Library
* http://www.pjrc.com/teensy/
* Copyright (c) 2017 PJRC.COM, LLC.
*
* 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:
*
* 1. The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 2. If the Software is incorporated into a build system that allows
* selection among a list of target devices, then similar target
* devices manufactured by PJRC.COM must be included in the list of
* target devices and selectable in the same manner.
*
* 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 "kinetis.h"
#include "ser_print.h"
#ifdef KINETISL
// Simple polling-only Serial1 support for Teensy-LC
// this is really only useful for extremely low-level troubleshooting
void ser_write(uint8_t c)
{
while ((UART0_S1 & UART_S1_TDRE) == 0) /* wait */ ;
UART0_D = c;
}
void ser_print(const char *p)
{
while (*p) {
char c = *p++;
if (c == '\n') ser_write('\r');
ser_write(c);
}
}
static void ser_print_hex1(unsigned int n)
{
n &= 15;
if (n < 10) {
ser_write('0' + n);
} else {
ser_write('A' - 10 + n);
}
}
void ser_print_hex(unsigned int n)
{
ser_print_hex1(n >> 4);
ser_print_hex1(n);
}
void ser_print_hex32(unsigned int n)
{
ser_print_hex(n >> 24);
ser_print_hex(n >> 16);
ser_print_hex(n >> 8);
ser_print_hex(n);
}
#endif