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- /* Copyright 2012 Jun Wako <[email protected]> */
- /* Very basic print functions, intended to be used with usb_debug_only.c
- * http://www.pjrc.com/teensy/
- * Copyright (c) 2008 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:
- *
- * 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 <stdio.h>
- #include <avr/io.h>
- #include <avr/pgmspace.h>
- #include "print.h"
- #define sendchar(c) do { if (print_enable && print_sendchar_func) (print_sendchar_func)(c); } while (0)
-
-
- int8_t (*print_sendchar_func)(uint8_t) = NULL;
- bool print_enable = false;
-
- /* print string stored in data memory(SRAM)
- * print_P("hello world");
- * This consumes precious SRAM memory space for string.
- */
- void print_S(const char *s)
- {
- uint8_t c;
- while (1) {
- c = *s++;
- if (!c) break;
- if (c == '\n') sendchar('\r');
- sendchar(c);
- }
- }
-
- /* print string stored in program memory(FLASH)
- * print_P(PSTR("hello world");
- * This consumes relatively abundant FLASH memory area not SRAM.
- */
- void print_P(const char *s)
- {
- uint8_t c;
- while (1) {
- c = pgm_read_byte(s++);
- if (!c) break;
- if (c == '\n') sendchar('\r');
- sendchar(c);
- }
- }
-
- static inline
- void print_hex4(uint8_t data)
- {
- sendchar(data + ((data < 10) ? '0' : 'A' - 10));
- }
-
- void print_hex8(uint8_t data)
- {
- print_hex4(data>>4);
- print_hex4(data&0x0F);
- }
-
- void print_hex16(uint16_t data)
- {
- print_hex8(data>>8);
- print_hex8(data);
- }
-
- void print_hex32(uint32_t data)
- {
- print_hex16(data>>16);
- print_hex16(data);
- }
-
- void print_dec8(uint8_t data)
- {
- if (data/100) sendchar('0' + (data/100));
- if (data/100 || data%100/10) sendchar('0' + (data%100/10));
- sendchar('0' + (data%10));
- }
-
- void print_dec16(uint16_t data)
- {
- // TODO
- }
-
- void print_dec32(uint32_t data)
- {
- // TODO
- }
-
- void print_bin(uint8_t data)
- {
- for (int i = 7; i >= 0; i--) {
- sendchar((data & (1<<i)) ? '1' : '0');
- }
- }
-
- void print_bin16(uint16_t data)
- {
- print_bin8(data>>8);
- print_bin8(data);
- }
-
- void print_bin32(uint32_t data)
- {
- print_bin8(data>>24);
- print_bin8(data>>16);
- print_bin8(data>>8);
- print_bin8(data);
- }
-
- void print_bin_reverse8(uint8_t data)
- {
- for (int i = 0; i < 8; i++) {
- sendchar((data & (1<<i)) ? '1' : '0');
- }
- }
-
- void print_bin_reverse16(uint16_t data)
- {
- print_bin_reverse8(data);
- print_bin_reverse8(data>>8);
- }
-
- void print_bin_reverse32(uint32_t data)
- {
- print_bin_reverse8(data);
- print_bin_reverse8(data>>8);
- print_bin_reverse8(data>>16);
- print_bin_reverse8(data>>24);
- }
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