iforce2d Chris / Mbed 2 deprecated ubxDistanceMeter

Displays distance to start location on OLED screen.

Dependencies:   mbed

u8g_com_arduino_hw_usart_spi.c@0:972874f31c98, 2018-03-07 (annotated)

Committer:
iforce2d
Date:
Wed Mar 07 12:49:14 2018 +0000
Revision:
0:972874f31c98
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
iforce2d 0:972874f31c98 1 /*
iforce2d 0:972874f31c98 2
iforce2d 0:972874f31c98 3 u8g_com_arduino_hw_usart_spi.c
iforce2d 0:972874f31c98 4
iforce2d 0:972874f31c98 5 Universal 8bit Graphics Library
iforce2d 0:972874f31c98 6
iforce2d 0:972874f31c98 7 Copyright (c) 2011, olikraus@gmail.com
iforce2d 0:972874f31c98 8 All rights reserved.
iforce2d 0:972874f31c98 9
iforce2d 0:972874f31c98 10 Redistribution and use in source and binary forms, with or without modification,
iforce2d 0:972874f31c98 11 are permitted provided that the following conditions are met:
iforce2d 0:972874f31c98 12
iforce2d 0:972874f31c98 13 * Redistributions of source code must retain the above copyright notice, this list
iforce2d 0:972874f31c98 14 of conditions and the following disclaimer.
iforce2d 0:972874f31c98 15
iforce2d 0:972874f31c98 16 * Redistributions in binary form must reproduce the above copyright notice, this
iforce2d 0:972874f31c98 17 list of conditions and the following disclaimer in the documentation and/or other
iforce2d 0:972874f31c98 18 materials provided with the distribution.
iforce2d 0:972874f31c98 19
iforce2d 0:972874f31c98 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
iforce2d 0:972874f31c98 21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
iforce2d 0:972874f31c98 22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
iforce2d 0:972874f31c98 23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
iforce2d 0:972874f31c98 24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
iforce2d 0:972874f31c98 25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
iforce2d 0:972874f31c98 26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
iforce2d 0:972874f31c98 27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
iforce2d 0:972874f31c98 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
iforce2d 0:972874f31c98 29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
iforce2d 0:972874f31c98 30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
iforce2d 0:972874f31c98 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
iforce2d 0:972874f31c98 32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
iforce2d 0:972874f31c98 33
iforce2d 0:972874f31c98 34 SPI Clock Cycle Type
iforce2d 0:972874f31c98 35
iforce2d 0:972874f31c98 36 SSD1351 50ns 20 MHz
iforce2d 0:972874f31c98 37 SSD1322 300ns 3.3 MHz
iforce2d 0:972874f31c98 38 SSD1327 300ns
iforce2d 0:972874f31c98 39 SSD1306 300ns
iforce2d 0:972874f31c98 40 ST7565 400ns 2.5 MHz
iforce2d 0:972874f31c98 41 ST7920 400ns
iforce2d 0:972874f31c98 42
iforce2d 0:972874f31c98 43 */
iforce2d 0:972874f31c98 44
iforce2d 0:972874f31c98 45 #include "u8g.h"
iforce2d 0:972874f31c98 46
iforce2d 0:972874f31c98 47 #if defined(ARDUINO)
iforce2d 0:972874f31c98 48
iforce2d 0:972874f31c98 49 #if defined(__AVR_ATmega32U4__ )
iforce2d 0:972874f31c98 50
iforce2d 0:972874f31c98 51 #include <avr/interrupt.h>
iforce2d 0:972874f31c98 52 #include <avr/io.h>
iforce2d 0:972874f31c98 53
iforce2d 0:972874f31c98 54 #if ARDUINO < 100
iforce2d 0:972874f31c98 55 #include <WProgram.h>
iforce2d 0:972874f31c98 56 #else
iforce2d 0:972874f31c98 57 #include <Arduino.h>
iforce2d 0:972874f31c98 58 #endif
iforce2d 0:972874f31c98 59
iforce2d 0:972874f31c98 60
iforce2d 0:972874f31c98 61
iforce2d 0:972874f31c98 62 static uint8_t u8g_usart_spi_out(uint8_t data)
iforce2d 0:972874f31c98 63 {
iforce2d 0:972874f31c98 64 /* send data */
iforce2d 0:972874f31c98 65 UDR1 = data;
iforce2d 0:972874f31c98 66 /* wait for empty transmit buffer */
iforce2d 0:972874f31c98 67 while(!(UCSR1A & (1 << UDRE1)));
iforce2d 0:972874f31c98 68
iforce2d 0:972874f31c98 69 return UDR1;
iforce2d 0:972874f31c98 70 }
iforce2d 0:972874f31c98 71
iforce2d 0:972874f31c98 72
iforce2d 0:972874f31c98 73 uint8_t u8g_com_arduino_hw_usart_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
iforce2d 0:972874f31c98 74 {
iforce2d 0:972874f31c98 75 switch(msg)
iforce2d 0:972874f31c98 76 {
iforce2d 0:972874f31c98 77 case U8G_COM_MSG_STOP:
iforce2d 0:972874f31c98 78 break;
iforce2d 0:972874f31c98 79
iforce2d 0:972874f31c98 80 case U8G_COM_MSG_INIT:
iforce2d 0:972874f31c98 81 /* SCK is already an output as we overwrite TXLED */
iforce2d 0:972874f31c98 82 u8g_com_arduino_assign_pin_output_high(u8g);
iforce2d 0:972874f31c98 83 u8g_com_arduino_digital_write(u8g, U8G_PI_CS, HIGH);
iforce2d 0:972874f31c98 84
iforce2d 0:972874f31c98 85 // Init interface at 2MHz
iforce2d 0:972874f31c98 86 UBRR1 = 0x00;
iforce2d 0:972874f31c98 87 UCSR1C = (1 << UMSEL11) | (1 << UMSEL10);
iforce2d 0:972874f31c98 88 UCSR1B = (1 << TXEN1);
iforce2d 0:972874f31c98 89 UBRR1 = 3;
iforce2d 0:972874f31c98 90
iforce2d 0:972874f31c98 91 break;
iforce2d 0:972874f31c98 92
iforce2d 0:972874f31c98 93 case U8G_COM_MSG_ADDRESS: /* define cmd (arg_val = 0) or data mode (arg_val = 1) */
iforce2d 0:972874f31c98 94 u8g_com_arduino_digital_write(u8g, U8G_PI_A0, arg_val);
iforce2d 0:972874f31c98 95 break;
iforce2d 0:972874f31c98 96
iforce2d 0:972874f31c98 97 case U8G_COM_MSG_CHIP_SELECT:
iforce2d 0:972874f31c98 98 if ( arg_val == 0 )
iforce2d 0:972874f31c98 99 {
iforce2d 0:972874f31c98 100 /* disable */
iforce2d 0:972874f31c98 101 u8g_com_arduino_digital_write(u8g, U8G_PI_CS, HIGH);
iforce2d 0:972874f31c98 102 }
iforce2d 0:972874f31c98 103 else
iforce2d 0:972874f31c98 104 {
iforce2d 0:972874f31c98 105 /* enable */
iforce2d 0:972874f31c98 106 u8g_com_arduino_digital_write(u8g, U8G_PI_CS, LOW);
iforce2d 0:972874f31c98 107 }
iforce2d 0:972874f31c98 108 break;
iforce2d 0:972874f31c98 109
iforce2d 0:972874f31c98 110 case U8G_COM_MSG_RESET:
iforce2d 0:972874f31c98 111 if ( u8g->pin_list[U8G_PI_RESET] != U8G_PIN_NONE )
iforce2d 0:972874f31c98 112 u8g_com_arduino_digital_write(u8g, U8G_PI_RESET, arg_val);
iforce2d 0:972874f31c98 113 break;
iforce2d 0:972874f31c98 114
iforce2d 0:972874f31c98 115 case U8G_COM_MSG_WRITE_BYTE:
iforce2d 0:972874f31c98 116 u8g_usart_spi_out(arg_val);
iforce2d 0:972874f31c98 117 break;
iforce2d 0:972874f31c98 118
iforce2d 0:972874f31c98 119 case U8G_COM_MSG_WRITE_SEQ:
iforce2d 0:972874f31c98 120 {
iforce2d 0:972874f31c98 121 register uint8_t *ptr = arg_ptr;
iforce2d 0:972874f31c98 122 while( arg_val > 0 )
iforce2d 0:972874f31c98 123 {
iforce2d 0:972874f31c98 124 u8g_usart_spi_out(*ptr++);
iforce2d 0:972874f31c98 125 arg_val--;
iforce2d 0:972874f31c98 126 }
iforce2d 0:972874f31c98 127 }
iforce2d 0:972874f31c98 128 break;
iforce2d 0:972874f31c98 129 case U8G_COM_MSG_WRITE_SEQ_P:
iforce2d 0:972874f31c98 130 {
iforce2d 0:972874f31c98 131 register uint8_t *ptr = arg_ptr;
iforce2d 0:972874f31c98 132 while( arg_val > 0 )
iforce2d 0:972874f31c98 133 {
iforce2d 0:972874f31c98 134 u8g_usart_spi_out(u8g_pgm_read(ptr));
iforce2d 0:972874f31c98 135 ptr++;
iforce2d 0:972874f31c98 136 arg_val--;
iforce2d 0:972874f31c98 137 }
iforce2d 0:972874f31c98 138 }
iforce2d 0:972874f31c98 139 break;
iforce2d 0:972874f31c98 140 }
iforce2d 0:972874f31c98 141 return 1;
iforce2d 0:972874f31c98 142 }
iforce2d 0:972874f31c98 143
iforce2d 0:972874f31c98 144 /* #elif defined(__18CXX) || defined(__PIC32MX) */
iforce2d 0:972874f31c98 145 /* #elif defined(__arm__) // Arduino Due, maybe we should better check for __SAM3X8E__ */
iforce2d 0:972874f31c98 146
iforce2d 0:972874f31c98 147 #else /* __AVR_ATmega32U4__ */
iforce2d 0:972874f31c98 148
iforce2d 0:972874f31c98 149 #endif /* __AVR_ATmega32U4__ */
iforce2d 0:972874f31c98 150
iforce2d 0:972874f31c98 151 #else /* ARDUINO */
iforce2d 0:972874f31c98 152
iforce2d 0:972874f31c98 153 uint8_t u8g_com_arduino_hw_usart_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr)
iforce2d 0:972874f31c98 154 {
iforce2d 0:972874f31c98 155 return 1;
iforce2d 0:972874f31c98 156 }
iforce2d 0:972874f31c98 157
iforce2d 0:972874f31c98 158 #endif /* ARDUINO */
iforce2d 0:972874f31c98 159
iforce2d 0:972874f31c98 160