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1 | /**************************************************************************** |
1 | /**************************************************************************** |
2 | * Copyright (C) 2009 by Claas Anders "CaScAdE" Rathje * |
2 | * Copyright (C) 2009 by Claas Anders "CaScAdE" Rathje * |
3 | * admiralcascade@gmail.com * |
3 | * admiralcascade@gmail.com * |
4 | * Project-URL: http://www.mylifesucks.de/oss/c-osd/ * |
4 | * Project-URL: http://www.mylifesucks.de/oss/c-osd/ * |
5 | * * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License. * |
8 | * the Free Software Foundation; either version 2 of the License. * |
9 | * * |
9 | * * |
10 | * This program is distributed in the hope that it will be useful, * |
10 | * This program is distributed in the hope that it will be useful, * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
13 | * GNU General Public License for more details. * |
13 | * GNU General Public License for more details. * |
14 | * * |
14 | * * |
15 | * You should have received a copy of the GNU General Public License * |
15 | * You should have received a copy of the GNU General Public License * |
16 | * along with this program; if not, write to the * |
16 | * along with this program; if not, write to the * |
17 | * Free Software Foundation, Inc., * |
17 | * Free Software Foundation, Inc., * |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
19 | ****************************************************************************/ |
19 | ****************************************************************************/ |
20 | 20 | ||
21 | #include <avr/io.h> |
21 | #include <avr/io.h> |
22 | 22 | ||
23 | #include <util/delay.h> |
23 | #include <util/delay.h> |
24 | #include <avr/pgmspace.h> |
24 | #include <avr/pgmspace.h> |
25 | #include <string.h> |
25 | #include <string.h> |
26 | #include <stdlib.h> |
26 | #include <stdlib.h> |
27 | #include "main.h" |
27 | #include "main.h" |
28 | #include "max7456_software_spi.h" |
28 | #include "max7456_software_spi.h" |
29 | 29 | ||
30 | /* ########################################################################## |
30 | /* ########################################################################## |
31 | * MAX7456 SPI & Display stuff |
31 | * MAX7456 SPI & Display stuff |
32 | * ##########################################################################*/ |
32 | * ##########################################################################*/ |
33 | 33 | ||
34 | /** |
34 | /** |
35 | * Send a byte through SPI |
35 | * Send a byte through SPI |
36 | * inline because it increases the codesize currenlty 'only' by 110byte but saves |
36 | * inline because it increases the codesize currenlty 'only' by 110byte but saves |
37 | * the context-change on every char and attribute which is at least done twice |
37 | * the context-change on every char and attribute which is at least done twice |
38 | * (address and data byte), a significant speed-bost we do not want to miss :) |
38 | * (address and data byte), a significant speed-bost we do not want to miss :) |
39 | */ |
39 | */ |
40 | inline void spi_send(uint8_t byte) { |
40 | inline void spi_send(uint8_t byte) { |
41 | for (int8_t i = 7; i >= 0; i--) { |
41 | for (int8_t i = 7; i >= 0; i--) { |
42 | if (((byte >> i) & 1)) { |
42 | if (((byte >> i) & 1)) { |
43 | MAX_SDIN_HIGH |
43 | MAX_SDIN_HIGH |
44 | } else { |
44 | } else { |
45 | MAX_SDIN_LOW |
45 | MAX_SDIN_LOW |
46 | } |
46 | } |
47 | MAX_SCLK_HIGH |
47 | MAX_SCLK_HIGH |
48 | MAX_SCLK_LOW |
48 | MAX_SCLK_LOW |
49 | } |
49 | } |
50 | } |
50 | } |
51 | 51 | ||
52 | /** |
52 | /** |
53 | * Send <byte> to <address> of MAX7456 |
53 | * Send <byte> to <address> of MAX7456 |
54 | */ |
54 | */ |
55 | void spi_send_byte(uint8_t address, uint8_t byte) { |
55 | void spi_send_byte(uint8_t address, uint8_t byte) { |
56 | // start sending |
56 | // start sending |
57 | MAX_CS_LOW |
57 | MAX_CS_LOW |
58 | 58 | ||
59 | spi_send(address); |
59 | spi_send(address); |
60 | spi_send(byte); |
60 | spi_send(byte); |
61 | 61 | ||
62 | // end sending |
62 | // end sending |
63 | MAX_CS_HIGH |
63 | MAX_CS_HIGH |
64 | } |
64 | } |
65 | 65 | ||
66 | 66 | ||
67 | /** |
67 | /** |
68 | * write a <character> to <address> of MAX7456 display memory |
68 | * write a <character> to <address> of MAX7456 display memory |
69 | */ |
69 | */ |
70 | void write_char(uint16_t address, char character) { |
70 | void write_char(uint16_t address, char character) { |
71 | spi_send_byte(0x05, (address & 0xFF00) >> 8); // DMAH |
71 | spi_send_byte(0x05, (address & 0xFF00) >> 8); // DMAH |
72 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
72 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
73 | spi_send_byte(0x07, character); // DMDI |
73 | spi_send_byte(0x07, character); // DMDI |
74 | } |
74 | } |
75 | 75 | ||
76 | 76 | ||
77 | /** |
77 | /** |
78 | * clear display memory |
78 | * clear display memory |
79 | * (also sets 8bit mode) |
79 | * (also sets 8bit mode) |
80 | */ |
80 | */ |
81 | void clear(void) { |
81 | void clear(void) { |
82 | /*uint16_t memory_address = 0; |
82 | /*uint16_t memory_address = 0; |
83 | for (unsigned int a = 0; a < 480; a++) { |
83 | for (unsigned int a = 0; a < 480; a++) { |
84 | write_char(memory_address++, 0); |
84 | write_char(memory_address++, 0); |
85 | }*/ |
85 | }*/ |
86 | // clear all display-mem (DMM) |
86 | // clear all display-mem (DMM) |
87 | spi_send_byte(0x04, 0b01000100); |
87 | spi_send_byte(0x04, 0b01000100); |
88 | 88 | ||
89 | // clearing takes 12uS according to maxim so lets wait longer |
89 | // clearing takes 12uS according to maxim so lets wait longer |
90 | _delay_us(20); |
90 | _delay_us(20); |
91 | } |
91 | } |
92 | 92 | ||
93 | 93 | ||
94 | /** |
94 | /** |
95 | * for testing write all chars to screen |
95 | * for testing write all chars to screen |
96 | */ |
96 | */ |
97 | void write_all_chars() { |
97 | void write_all_chars() { |
98 | uint16_t x = 3, y = 2, t = 0; |
98 | uint16_t x = 3, y = 2, t = 0; |
99 | while (t < 256) { |
99 | while (t < 256) { |
100 | write_char(x++ + y*30, t++); |
100 | write_char(x++ + y*30, t++); |
101 | if (x > 25) { |
101 | if (x > 25) { |
102 | y++; |
102 | y++; |
103 | x = 3; |
103 | x = 3; |
104 | } |
104 | } |
105 | } |
105 | } |
106 | } |
106 | } |
107 | 107 | ||
108 | #if !(ALLCHARSDEBUG|(WRITECHARS != -1)) |
108 | #if !(ALLCHARSDEBUG|(WRITECHARS != -1)) |
109 | 109 | ||
110 | /** |
110 | /** |
111 | * write a character <attribute> to <address> of MAX7456 display memory |
111 | * write a character <attribute> to <address> of MAX7456 display memory |
112 | */ |
112 | */ |
113 | void write_char_att(uint16_t address, char attribute) { |
113 | void write_char_att(uint16_t address, char attribute) { |
114 | // the only important part is that the DMAH[1] is set |
114 | // the only important part is that the DMAH[1] is set |
115 | // so we add 2 which binary is the 2nd lowest byte |
115 | // so we add 2 which binary is the 2nd lowest byte |
116 | spi_send_byte(0x05, ((address & 0xFF00) >> 8) | 2); // DMAH |
116 | spi_send_byte(0x05, ((address & 0xFF00) >> 8) | 2); // DMAH |
117 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
117 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
118 | spi_send_byte(0x07, attribute); // DMDI |
118 | spi_send_byte(0x07, attribute); // DMDI |
119 | } |
119 | } |
120 | 120 | ||
121 | /** |
121 | /** |
122 | * write a <character> at <x>/<y> to MAX7456 display memory |
122 | * write a <character> at <x>/<y> to MAX7456 display memory |
123 | */ |
123 | */ |
124 | void write_char_xy(uint8_t x, uint8_t y, char character) { |
124 | void write_char_xy(uint8_t x, uint8_t y, char character) { |
125 | uint16_t address = y * 30 + x; |
125 | uint16_t address = y * 30 + x; |
126 | write_char(address, character); |
126 | write_char(address, character); |
127 | } |
127 | } |
128 | 128 | ||
129 | /** |
129 | /** |
130 | * write a character <attribute> at <x>/<y> to MAX7456 display memory |
130 | * write a character <attribute> at <x>/<y> to MAX7456 display memory |
131 | */ |
131 | */ |
132 | void write_char_att_xy(uint8_t x, uint8_t y, char attribute) { |
132 | void write_char_att_xy(uint8_t x, uint8_t y, char attribute) { |
133 | uint16_t address = y * 30 + x; |
133 | uint16_t address = y * 30 + x; |
134 | write_char_att(address, attribute); |
134 | write_char_att(address, attribute); |
135 | } |
135 | } |
136 | 136 | ||
137 | /** |
137 | /** |
138 | * let the MAX7456 learn a new character at <number> |
138 | * let the MAX7456 learn a new character at <number> |
139 | * with <data>. |
139 | * with <data>. |
140 | */ |
140 | */ |
141 | void learn_char(uint8_t number, unsigned char* data) { |
141 | void learn_char(uint8_t number, unsigned char* data) { |
142 | // select character to write (CMAH) |
142 | // select character to write (CMAH) |
143 | spi_send_byte(0x09, number); |
143 | spi_send_byte(0x09, number); |
144 | 144 | ||
145 | for (uint8_t i = 0; i < 54; i++) { |
145 | for (uint8_t i = 0; i < 54; i++) { |
146 | // select 4pixel byte of char (CMAL) |
146 | // select 4pixel byte of char (CMAL) |
147 | spi_send_byte(0x0A, i); |
147 | spi_send_byte(0x0A, i); |
148 | 148 | ||
149 | // write 4pixel byte of char (CMDI) |
149 | // write 4pixel byte of char (CMDI) |
150 | spi_send_byte(0x0B, data[i]); |
150 | spi_send_byte(0x0B, data[i]); |
151 | } |
151 | } |
152 | 152 | ||
153 | // write to the NVM array from the shadow RAM (CMM) |
153 | // write to the NVM array from the shadow RAM (CMM) |
154 | spi_send_byte(0x08, 0b10100000); |
154 | spi_send_byte(0x08, 0b10100000); |
155 | 155 | ||
156 | // according to maxim writing to nvram takes about 12ms, lets wait longer |
156 | // according to maxim writing to nvram takes about 12ms, lets wait longer |
157 | _delay_ms(120); |
157 | _delay_ms(120); |
158 | } |
158 | } |
159 | 159 | ||
160 | /** |
160 | /** |
161 | * write an ascii <character> to <address> of MAX7456 display memory |
161 | * write an ascii <character> to <address> of MAX7456 display memory |
162 | */ |
162 | */ |
163 | void write_ascii_char(uint16_t address, char c) { |
163 | void write_ascii_char(uint16_t address, char c) { |
164 | if (c == 32) c = 0; // remap space |
164 | if (c == 32) c = 0; // remap space |
165 | else if (c > 48 && c <= 57) c -= 48; // remap numbers |
165 | else if (c > 48 && c <= 57) c -= 48; // remap numbers |
166 | else if (c == '0') c = 10; // remap zero |
166 | else if (c == '0') c = 10; // remap zero |
167 | else if (c >= 65 && c <= 90) c -= 54; // remap big letters |
167 | else if (c >= 65 && c <= 90) c -= 54; // remap big letters |
168 | else if (c >= 97 && c <= 122) c -= 60; // remap small letters |
168 | else if (c >= 97 && c <= 122) c -= 60; // remap small letters |
169 | else if (c == '(') c = 63; // remap |
169 | else if (c == '(') c = 63; // remap |
170 | else if (c == ')') c = 64; // remap |
170 | else if (c == ')') c = 64; // remap |
171 | else if (c == '.') c = 65; // remap |
171 | else if (c == '.') c = 65; // remap |
172 | else if (c == '?') c = 66; // remap |
172 | else if (c == '?') c = 66; // remap |
173 | else if (c == ';') c = 67; // remap |
173 | else if (c == ';') c = 67; // remap |
174 | else if (c == ':') c = 68; // remap |
174 | else if (c == ':') c = 68; // remap |
175 | else if (c == ',') c = 69; // remap |
175 | else if (c == ',') c = 69; // remap |
176 | else if (c == '\'') c = 70; // remap |
176 | else if (c == '\'') c = 70; // remap |
177 | else if (c == '/') c = 71; // remap |
177 | else if (c == '/') c = 71; // remap |
178 | else if (c == '"') c = 72; // remap |
178 | else if (c == '"') c = 72; // remap |
179 | else if (c == '-') c = 73; // remap minus |
179 | else if (c == '-') c = 73; // remap minus |
180 | else if (c == '<') c = 74; // remap |
180 | else if (c == '<') c = 74; // remap |
181 | else if (c == '>') c = 75; // remap |
181 | else if (c == '>') c = 75; // remap |
182 | else if (c == '@') c = 76; // remap |
182 | else if (c == '@') c = 76; // remap |
183 | write_char(address, c); |
183 | write_char(address, c); |
184 | } |
184 | } |
185 | 185 | ||
186 | /** |
186 | /** |
187 | * write an ascii <string> at <x>/<y> to MAX7456 display memory |
187 | * write an ascii <string> at <x>/<y> to MAX7456 display memory |
188 | */ |
188 | */ |
189 | void write_ascii_string(uint8_t x, uint8_t y, char *string) { |
189 | void write_ascii_string(uint8_t x, uint8_t y, char *string) { |
190 | while (*string) { |
190 | while (*string) { |
191 | write_ascii_char(((x++)+(y * 30)), *string); |
191 | write_ascii_char(((x++)+(y * 30)), *string); |
192 | string++; |
192 | string++; |
193 | } |
193 | } |
194 | } |
194 | } |
195 | 195 | ||
196 | /** |
196 | /** |
197 | * write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory |
197 | * write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory |
198 | */ |
198 | */ |
199 | void write_ascii_string_pgm(uint8_t x, uint8_t y, const char *string) { |
199 | void write_ascii_string_pgm(uint8_t x, uint8_t y, const char *string) { |
200 | while (pgm_read_byte(string) != 0x00) |
200 | while (pgm_read_byte(string) != 0x00) |
201 | write_ascii_char(((x++)+(y * 30)), pgm_read_byte(string++)); |
201 | write_ascii_char(((x++)+(y * 30)), pgm_read_byte(string++)); |
202 | } |
202 | } |
203 | 203 | ||
204 | /** |
204 | /** |
205 | * write an <string> from progmen at <x>/<y> downwards to MAX7456 display memory |
205 | * write an <string> from progmen at <x>/<y> downwards to MAX7456 display memory |
206 | */ |
206 | */ |
207 | void write_string_pgm_down(uint8_t x, uint8_t y, const char *string, uint8_t length) { |
207 | void write_string_pgm_down(uint8_t x, uint8_t y, const char *string, uint8_t length) { |
208 | while (length--) |
208 | while (length--) |
209 | write_char((x+(y++ * 30)), pgm_read_byte(string++)); |
209 | write_char((x+(y++ * 30)), pgm_read_byte(string++)); |
210 | } |
210 | } |
211 | 211 | ||
212 | /** |
212 | /** |
213 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory |
213 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory |
214 | * <length> represents the length to rightbound the number |
214 | * <length> represents the length to rightbound the number |
215 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
215 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
216 | */ |
216 | */ |
217 | void write_ndigit_number_u(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
217 | void write_ndigit_number_u(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
218 | char s[7]; |
218 | char s[7]; |
219 | itoa(number, s, 10 ); |
219 | itoa(number, s, 10 ); |
220 | for (uint8_t i = 0; i < length - strlen(s); i++) { |
220 | for (uint8_t i = 0; i < length - strlen(s); i++) { |
221 | if (pad) write_char((x++)+(y * 30), 10); |
221 | if (pad) write_char((x++)+(y * 30), 10); |
222 | else write_ascii_char((x++)+(y * 30), 0); |
222 | else write_ascii_char((x++)+(y * 30), 0); |
223 | } |
223 | } |
224 | write_ascii_string(x, y, s); |
224 | write_ascii_string(x, y, s); |
225 | } |
225 | } |
226 | 226 | ||
227 | /** |
227 | /** |
228 | * Write a signed <number> at <x>/<y> to MAX7456 display memory |
228 | * Write a signed <number> at <x>/<y> to MAX7456 display memory |
229 | * <length> represents the length to rightbound the number |
229 | * <length> represents the length to rightbound the number |
230 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
230 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
231 | */ |
231 | */ |
232 | void write_ndigit_number_s(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
232 | void write_ndigit_number_s(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
233 | char s[7]; |
233 | char s[7]; |
234 | itoa(number, s, 10 ); |
234 | itoa(number, s, 10 ); |
235 | for (uint8_t i = 0; i < length - strlen(s); i++) { |
235 | for (uint8_t i = 0; i < length - strlen(s); i++) { |
236 | if (pad) write_char((x++)+(y * 30), 10); |
236 | if (pad) write_char((x++)+(y * 30), 10); |
237 | else write_ascii_char((x++)+(y * 30), 0); |
237 | else write_ascii_char((x++)+(y * 30), 0); |
238 | } |
238 | } |
239 | write_ascii_string(x, y, s); |
239 | write_ascii_string(x, y, s); |
240 | } |
240 | } |
241 | 241 | ||
242 | /** |
242 | /** |
243 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory as /10th of value |
243 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory as /10th of value |
244 | * <length> represents the length to rightbound the number |
244 | * <length> represents the length to rightbound the number |
245 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
245 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
246 | */ |
246 | */ |
247 | void write_ndigit_number_u_10th(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
247 | void write_ndigit_number_u_10th(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
248 | char s[7]; |
248 | char s[7]; |
249 | itoa(number, s, 10 ); |
249 | itoa(number, s, 10 ); |
- | 250 | uint8_t len = strlen(s); |
|
250 | for (uint8_t i = 0; i < length - strlen(s); i++) { |
251 | for (uint8_t i = 0; i < length - len; i++) { |
251 | if (pad) write_char((x++)+(y * 30), 10); |
252 | if (pad) write_char((x++)+(y * 30), 10); // zero |
252 | else write_ascii_char((x++)+(y * 30), 0); |
253 | else write_char((x++)+(y * 30), 0); // blank |
253 | } |
254 | } |
254 | char rest = s[strlen(s)-1]; |
255 | char rest = s[len - 1]; |
255 | s[strlen(s)-1] = 0; |
256 | s[len - 1] = 0; |
- | 257 | if (len == 1) { |
|
256 | if (number < 10) write_char((x-1)+(y * 30), 10); // zero |
258 | write_char((x-1)+(y * 30), 10); // zero |
- | 259 | } else if (len == 2 && s[0] == '-') { |
|
- | 260 | write_char((x-1)+(y * 30), 0x49); // minus |
|
- | 261 | write_char((x)+(y * 30), 10); // zero |
|
- | 262 | } else { |
|
257 | else write_ascii_string(x, y, s); |
263 | write_ascii_string(x, y, s); |
- | 264 | } |
|
258 | x += strlen(s); |
265 | x += len - 1; |
259 | write_char((x++)+(y * 30), 65); // decimal point |
266 | write_char((x++)+(y * 30), 65); // decimal point |
260 | write_ascii_char((x++)+(y * 30), rest); // after dot |
267 | write_ascii_char((x++)+(y * 30), rest); // after dot |
261 | } |
268 | } |
262 | 269 | ||
263 | /** |
270 | /** |
264 | * Write a signed <number> at <x>/<y> to MAX7456 display memory as /10th of value |
271 | * Write a signed <number> at <x>/<y> to MAX7456 display memory as /10th of value |
265 | * <length> represents the length to rightbound the number |
272 | * <length> represents the length to rightbound the number |
266 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
273 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
267 | */ |
274 | */ |
268 | void write_ndigit_number_s_10th(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
275 | void write_ndigit_number_s_10th(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
269 | char s[7]; |
276 | char s[7]; |
270 | itoa(number, s, 10 ); |
277 | itoa(number, s, 10 ); |
- | 278 | uint8_t len = strlen(s); |
|
271 | for (uint8_t i = 0; i < length - strlen(s); i++) { |
279 | for (uint8_t i = 0; i < length - len; i++) { |
272 | if (pad) write_char((x++)+(y * 30), 10); |
280 | if (pad) write_char((x++)+(y * 30), 10); // zero |
273 | else write_char((x++)+(y * 30), 0); |
281 | else write_char((x++)+(y * 30), 0); // blank |
274 | } |
282 | } |
275 | char rest = s[strlen(s)-1]; |
283 | char rest = s[len - 1]; |
276 | s[strlen(s)-1] = 0; |
284 | s[len - 1] = 0; |
- | 285 | if (len == 1) { |
|
- | 286 | write_char((x-1)+(y * 30), 10); // zero |
|
- | 287 | } else if (len == 2 && s[0] == '-') { |
|
- | 288 | write_char((x-1)+(y * 30), 0x49); // minus |
|
277 | if (number < 10) write_char((x)+(y * 30), 10); // zero |
289 | write_char((x)+(y * 30), 10); // zero |
278 | else { |
290 | } else { |
279 | write_ascii_string(x, y, s); |
291 | write_ascii_string(x, y, s); |
280 | } |
292 | } |
281 | x += strlen(s); |
293 | x += len - 1; |
282 | write_char((x++)+(y * 30), 65); // decimal point |
294 | write_char((x++)+(y * 30), 65); // decimal point |
283 | write_ascii_char((x++)+(y * 30), rest); // after dot |
295 | write_ascii_char((x++)+(y * 30), rest); // after dot |
284 | - | ||
285 | } |
296 | } |
286 | 297 | ||
287 | /** |
298 | /** |
288 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
299 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
289 | */ |
300 | */ |
290 | void write_time(uint8_t x, uint8_t y, uint16_t seconds) { |
301 | void write_time(uint8_t x, uint8_t y, uint16_t seconds) { |
291 | uint16_t min = seconds / 60; |
302 | uint16_t min = seconds / 60; |
292 | seconds -= min * 60; |
303 | seconds -= min * 60; |
293 | write_ndigit_number_u(x, y, min, 3, 0); |
304 | write_ndigit_number_u(x, y, min, 3, 0); |
294 | write_char_xy(x + 3, y, 68); |
305 | write_char_xy(x + 3, y, 68); |
295 | write_ndigit_number_u(x + 4, y, seconds, 2, 1); |
306 | write_ndigit_number_u(x + 4, y, seconds, 2, 1); |
296 | } |
307 | } |
297 | 308 | ||
298 | /** |
309 | /** |
299 | * wirte a <position> at <x>/<y> assuming it is a gps position for long-/latitude |
310 | * wirte a <position> at <x>/<y> assuming it is a gps position for long-/latitude |
300 | */ |
311 | */ |
301 | void write_gps_pos(uint8_t x, uint8_t y, int32_t position) { |
312 | void write_gps_pos(uint8_t x, uint8_t y, int32_t position) { |
302 | if (position < 0) { |
313 | if (position < 0) { |
303 | position ^= ~0; |
314 | position ^= ~0; |
304 | position++; |
315 | position++; |
305 | write_char_xy(x++, y, 0x49); // minus |
316 | write_char_xy(x++, y, 0x49); // minus |
306 | } else { |
317 | } else { |
307 | write_char_xy(x++, y, 0); // clear ('+' would be nice, maybe later) |
318 | write_char_xy(x++, y, 0); // clear ('+' would be nice, maybe later) |
308 | } |
319 | } |
309 | write_ndigit_number_u(x, y, (uint16_t) (position / (int32_t) 10000000), 3, 1); |
320 | write_ndigit_number_u(x, y, (uint16_t) (position / (int32_t) 10000000), 3, 1); |
310 | write_char_xy(x + 3, y, 65); // decimal point |
321 | write_char_xy(x + 3, y, 65); // decimal point |
311 | position = position - ((position / (int32_t) 10000000) * (int32_t) 10000000); |
322 | position = position - ((position / (int32_t) 10000000) * (int32_t) 10000000); |
312 | write_ndigit_number_u(x + 4, y, (uint16_t) (position / (int32_t) 1000), 4, 1); |
323 | write_ndigit_number_u(x + 4, y, (uint16_t) (position / (int32_t) 1000), 4, 1); |
313 | position = position - ((uint16_t) (position / (int32_t) 1000) * (int32_t) 1000); |
324 | position = position - ((uint16_t) (position / (int32_t) 1000) * (int32_t) 1000); |
314 | write_ndigit_number_u(x + 8, y, (uint16_t) position, 3, 1); |
325 | write_ndigit_number_u(x + 8, y, (uint16_t) position, 3, 1); |
315 | write_char_xy(x + 11, y, 0xD0); // degree symbol |
326 | write_char_xy(x + 11, y, 0xD0); // degree symbol |
316 | } |
327 | } |
317 | 328 | ||
318 | #endif |
329 | #endif |
319 | 330 |