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1 | /**************************************************************************** |
1 | /**************************************************************************** |
2 | * Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje * |
2 | * Copyright (C) 2009-2010 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 "main.h" |
|
21 | #include <avr/io.h> |
22 | #include <avr/io.h> |
22 | #include <util/delay.h> |
23 | #include <util/delay.h> |
23 | #include <avr/pgmspace.h> |
24 | #include <avr/pgmspace.h> |
24 | #include <string.h> |
25 | #include <string.h> |
25 | #include <stdlib.h> |
26 | #include <stdlib.h> |
26 | #include "main.h" |
- | |
27 | #include "max7456_software_spi.h" |
27 | #include "max7456_software_spi.h" |
28 | 28 | ||
29 | 29 | ||
30 | char conv_array[7]; // general array for number -> char conversation |
30 | char conv_array[7]; // general array for number -> char conversation |
- | 31 | ||
- | 32 | int pow(int a, int b) { |
|
- | 33 | if (b <= 0) return 1; |
|
- | 34 | int res = 1; |
|
- | 35 | while (b-- > 0) res *= a; |
|
- | 36 | return res; |
|
- | 37 | } |
|
31 | 38 | ||
32 | /* ########################################################################## |
39 | /* ########################################################################## |
33 | * MAX7456 SPI & Display stuff |
40 | * MAX7456 SPI & Display stuff |
34 | * ##########################################################################*/ |
41 | * ##########################################################################*/ |
35 | 42 | ||
36 | /** |
43 | /** |
37 | * Send a byte through SPI |
44 | * Send a byte through SPI |
38 | * inline because it increases the codesize currenlty 'only' by 110byte but saves |
45 | * inline because it increases the codesize currenlty 'only' by 110byte but saves |
39 | * the context-change on every char and attribute which is at least done twice |
46 | * the context-change on every char and attribute which is at least done twice |
40 | * (address and data byte), a significant speed-bost we do not want to miss :) |
47 | * (address and data byte), a significant speed-bost we do not want to miss :) |
41 | */ |
48 | */ |
42 | inline void spi_send(uint8_t byte) { |
49 | inline void spi_send(uint8_t byte) { |
43 | for (int8_t i = 7; i >= 0; i--) { |
50 | for (int8_t i = 7; i >= 0; i--) { |
44 | if (((byte >> i) & 1)) { |
51 | if (((byte >> i) & 1)) { |
45 | MAX_SDIN_HIGH |
52 | MAX_SDIN_HIGH |
46 | } else { |
53 | } else { |
47 | MAX_SDIN_LOW |
54 | MAX_SDIN_LOW |
48 | } |
55 | } |
49 | MAX_SCLK_HIGH |
56 | MAX_SCLK_HIGH |
50 | MAX_SCLK_LOW |
57 | MAX_SCLK_LOW |
51 | } |
58 | } |
52 | } |
59 | } |
53 | 60 | ||
54 | /** |
61 | /** |
55 | * Send <byte> to <address> of MAX7456 |
62 | * Send <byte> to <address> of MAX7456 |
56 | */ |
63 | */ |
57 | void spi_send_byte(uint8_t address, uint8_t byte) { |
64 | void spi_send_byte(uint8_t address, uint8_t byte) { |
58 | // start sending |
65 | // start sending |
59 | MAX_CS_LOW |
66 | MAX_CS_LOW |
60 | 67 | ||
61 | spi_send(address); |
68 | spi_send(address); |
62 | spi_send(byte); |
69 | spi_send(byte); |
63 | 70 | ||
64 | // end sending |
71 | // end sending |
65 | MAX_CS_HIGH |
72 | MAX_CS_HIGH |
66 | } |
73 | } |
67 | 74 | ||
68 | /** |
75 | /** |
69 | * write a <character> to <address> of MAX7456 display memory |
76 | * write a <character> to <address> of MAX7456 display memory |
70 | */ |
77 | */ |
71 | void write_char(uint16_t address, char character) { |
78 | void write_char(uint16_t address, char character) { |
72 | spi_send_byte(0x05, (address & 0xFF00) >> 8); // DMAH |
79 | spi_send_byte(0x05, (address & 0xFF00) >> 8); // DMAH |
73 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
80 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
74 | spi_send_byte(0x07, character); // DMDI |
81 | spi_send_byte(0x07, character); // DMDI |
75 | } |
82 | } |
76 | 83 | ||
77 | /** |
84 | /** |
78 | * clear display memory |
85 | * clear display memory |
79 | * (also sets 8bit mode) |
86 | * (also sets 8bit mode) |
80 | */ |
87 | */ |
81 | void clear(void) { |
88 | void clear(void) { |
82 | /*uint16_t memory_address = 0; |
89 | /*uint16_t memory_address = 0; |
83 | for (unsigned int a = 0; a < 480; a++) { |
90 | for (unsigned int a = 0; a < 480; a++) { |
84 | write_char(memory_address++, 0); |
91 | write_char(memory_address++, 0); |
85 | }*/ |
92 | }*/ |
86 | // clear all display-mem (DMM) |
93 | // clear all display-mem (DMM) |
87 | spi_send_byte(0x04, 0b01000100); |
94 | spi_send_byte(0x04, 0b01000100); |
88 | 95 | ||
89 | // clearing takes 12uS according to maxim so lets wait longer |
96 | // clearing takes 12uS according to maxim so lets wait longer |
90 | _delay_us(20); |
97 | _delay_us(20); |
91 | } |
98 | } |
92 | 99 | ||
93 | 100 | ||
94 | #if (ALLCHARSDEBUG|(WRITECHARS != -1)) |
101 | #if (ALLCHARSDEBUG|(WRITECHARS != -1)) |
95 | 102 | ||
96 | /** |
103 | /** |
97 | * for testing write all chars to screen |
104 | * for testing write all chars to screen |
98 | */ |
105 | */ |
99 | void write_all_chars() { |
106 | void write_all_chars() { |
100 | uint16_t x = 3, y = 2, t = 0; |
107 | uint16_t x = 3, y = 2, t = 0; |
101 | while (t < 256) { |
108 | while (t < 256) { |
102 | write_char(x++ + y * 30, t++); |
109 | write_char(x++ + y * 30, t++); |
103 | if (x > 25) { |
110 | if (x > 25) { |
104 | y++; |
111 | y++; |
105 | x = 3; |
112 | x = 3; |
106 | } |
113 | } |
107 | } |
114 | } |
108 | } |
115 | } |
109 | 116 | ||
110 | /** |
117 | /** |
111 | * let the MAX7456 learn a new character at <number> |
118 | * let the MAX7456 learn a new character at <number> |
112 | * with <data>. |
119 | * with <data>. |
113 | */ |
120 | */ |
114 | void learn_char(uint8_t number, unsigned char* data) { |
121 | void learn_char(uint8_t number, unsigned char* data) { |
115 | // select character to write (CMAH) |
122 | // select character to write (CMAH) |
116 | spi_send_byte(0x09, number); |
123 | spi_send_byte(0x09, number); |
117 | 124 | ||
118 | for (uint8_t i = 0; i < 54; i++) { |
125 | for (uint8_t i = 0; i < 54; i++) { |
119 | // select 4pixel byte of char (CMAL) |
126 | // select 4pixel byte of char (CMAL) |
120 | spi_send_byte(0x0A, i); |
127 | spi_send_byte(0x0A, i); |
121 | 128 | ||
122 | // write 4pixel byte of char (CMDI) |
129 | // write 4pixel byte of char (CMDI) |
123 | spi_send_byte(0x0B, data[i]); |
130 | spi_send_byte(0x0B, data[i]); |
124 | } |
131 | } |
125 | 132 | ||
126 | // write to the NVM array from the shadow RAM (CMM) |
133 | // write to the NVM array from the shadow RAM (CMM) |
127 | spi_send_byte(0x08, 0b10100000); |
134 | spi_send_byte(0x08, 0b10100000); |
128 | 135 | ||
129 | // according to maxim writing to nvram takes about 12ms, lets wait longer |
136 | // according to maxim writing to nvram takes about 12ms, lets wait longer |
130 | _delay_ms(120); |
137 | _delay_ms(120); |
131 | } |
138 | } |
132 | #endif |
139 | #endif |
133 | 140 | ||
134 | #if !(ALLCHARSDEBUG|(WRITECHARS != -1)) |
141 | #if !(ALLCHARSDEBUG|(WRITECHARS != -1)) |
135 | 142 | ||
136 | /** |
143 | /** |
137 | * write a character <attribute> to <address> of MAX7456 display memory |
144 | * write a character <attribute> to <address> of MAX7456 display memory |
138 | */ |
145 | */ |
139 | void write_char_att(uint16_t address, char attribute) { |
146 | void write_char_att(uint16_t address, char attribute) { |
140 | // the only important part is that the DMAH[1] is set |
147 | // the only important part is that the DMAH[1] is set |
141 | // so we add 2 which binary is the 2nd lowest byte |
148 | // so we add 2 which binary is the 2nd lowest byte |
142 | spi_send_byte(0x05, ((address & 0xFF00) >> 8) | 2); // DMAH |
149 | spi_send_byte(0x05, ((address & 0xFF00) >> 8) | 2); // DMAH |
143 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
150 | spi_send_byte(0x06, (address & 0x00FF)); // DMAL |
144 | spi_send_byte(0x07, attribute); // DMDI |
151 | spi_send_byte(0x07, attribute); // DMDI |
145 | } |
152 | } |
146 | 153 | ||
147 | /** |
154 | /** |
148 | * write a <character> at <x>/<y> to MAX7456 display memory |
155 | * write a <character> at <x>/<y> to MAX7456 display memory |
149 | */ |
156 | */ |
150 | void write_char_xy(uint8_t x, uint8_t y, char character) { |
157 | void write_char_xy(uint8_t x, uint8_t y, char character) { |
151 | uint16_t address = y * 30 + x; |
158 | uint16_t address = y * 30 + x; |
152 | write_char(address, character); |
159 | write_char(address, character); |
153 | } |
160 | } |
154 | 161 | ||
155 | /** |
162 | /** |
156 | * write a character <attribute> at <x>/<y> to MAX7456 display memory |
163 | * write a character <attribute> at <x>/<y> to MAX7456 display memory |
157 | */ |
164 | */ |
158 | void write_char_att_xy(uint8_t x, uint8_t y, char attribute) { |
165 | void write_char_att_xy(uint8_t x, uint8_t y, char attribute) { |
159 | uint16_t address = y * 30 + x; |
166 | uint16_t address = y * 30 + x; |
160 | write_char_att(address, attribute); |
167 | write_char_att(address, attribute); |
161 | } |
168 | } |
162 | 169 | ||
163 | /** |
170 | /** |
164 | * write an ascii <character> to <address> of MAX7456 display memory |
171 | * write an ascii <character> to <address> of MAX7456 display memory |
165 | */ |
172 | */ |
166 | void write_ascii_char(uint16_t address, char c) { |
173 | void write_ascii_char(uint16_t address, char c) { |
167 | if (c == 32) c = 0; // remap space |
174 | if (c == 32) c = 0; // remap space |
168 | else if (c > 48 && c <= 57) c -= 48; // remap numbers |
175 | else if (c > 48 && c <= 57) c -= 48; // remap numbers |
169 | else if (c == '0') c = 10; // remap zero |
176 | else if (c == '0') c = 10; // remap zero |
170 | else if (c >= 65 && c <= 90) c -= 54; // remap big letters |
177 | else if (c >= 65 && c <= 90) c -= 54; // remap big letters |
171 | else if (c >= 97 && c <= 122) c -= 60; // remap small letters |
178 | else if (c >= 97 && c <= 122) c -= 60; // remap small letters |
172 | else if (c == '(') c = 63; // remap |
179 | else if (c == '(') c = 63; // remap |
173 | else if (c == ')') c = 64; // remap |
180 | else if (c == ')') c = 64; // remap |
174 | else if (c == '.') c = 65; // remap |
181 | else if (c == '.') c = 65; // remap |
175 | else if (c == '-') c = 73; // remap minus |
182 | else if (c == '-') c = 73; // remap minus |
176 | else if (c == ';') c = 67; // remap |
183 | else if (c == ';') c = 67; // remap |
177 | else if (c == ':') c = 68; // remap |
184 | else if (c == ':') c = 68; // remap |
178 | else if (c == ',') c = 69; // remap |
185 | else if (c == ',') c = 69; // remap |
179 | // else if (c == '?') c = 66; // remap |
186 | // else if (c == '?') c = 66; // remap |
180 | // else if (c == '\'') c = 70; // remap |
187 | // else if (c == '\'') c = 70; // remap |
181 | else if (c == '/') c = 71; // remap |
188 | else if (c == '/') c = 71; // remap |
182 | // else if (c == '"') c = 72; // remap |
189 | // else if (c == '"') c = 72; // remap |
183 | // else if (c == '<') c = 74; // remap |
190 | // else if (c == '<') c = 74; // remap |
184 | // else if (c == '>') c = 75; // remap |
191 | // else if (c == '>') c = 75; // remap |
185 | // else if (c == '@') c = 76; // remap |
192 | // else if (c == '@') c = 76; // remap |
186 | write_char(address, c); |
193 | write_char(address, c); |
187 | } |
194 | } |
188 | 195 | ||
189 | /** |
196 | /** |
190 | * write an ascii <string> at <x>/<y> to MAX7456 display memory |
197 | * write an ascii <string> at <x>/<y> to MAX7456 display memory |
191 | */ |
198 | */ |
192 | void write_ascii_string(uint8_t x, uint8_t y, char *string) { |
199 | void write_ascii_string(uint8_t x, uint8_t y, char *string) { |
193 | while (*string) { |
200 | while (*string) { |
194 | write_ascii_char(((x++)+(y * 30)), *string); |
201 | write_ascii_char(((x++)+(y * 30)), *string); |
195 | string++; |
202 | string++; |
196 | } |
203 | } |
197 | } |
204 | } |
198 | 205 | ||
199 | /** |
206 | /** |
200 | * write an ascii <string> with lenght <len> at <x>/<y> to MAX7456 display memory |
207 | * write an ascii <string> with lenght <len> at <x>/<y> to MAX7456 display memory |
201 | */ |
208 | */ |
202 | void write_ascii_string_len(uint8_t x, uint8_t y, char *string, uint8_t len) { |
209 | void write_ascii_string_len(uint8_t x, uint8_t y, char *string, uint8_t len) { |
203 | while (len--) { |
210 | while (len--) { |
204 | write_ascii_char(((x++)+(y * 30)), *string); |
211 | write_ascii_char(((x++)+(y * 30)), *string); |
205 | string++; |
212 | string++; |
206 | } |
213 | } |
207 | } |
214 | } |
208 | 215 | ||
209 | /** |
216 | /** |
210 | * write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory |
217 | * write an ascii <string> from progmen at <x>/<y> to MAX7456 display memory |
211 | */ |
218 | */ |
212 | void write_ascii_string_pgm(uint8_t x, uint8_t y, const char *string) { |
219 | void write_ascii_string_pgm(uint8_t x, uint8_t y, const char *string) { |
213 | while (pgm_read_byte(string) != 0x00) |
220 | while (pgm_read_byte(string) != 0x00) |
214 | write_ascii_char(((x++)+(y * 30)), pgm_read_byte(string++)); |
221 | write_ascii_char(((x++)+(y * 30)), pgm_read_byte(string++)); |
215 | } |
222 | } |
216 | 223 | ||
217 | /** |
224 | /** |
218 | * write an <string> from progmen at <x>/<y> downwards to MAX7456 display memory |
225 | * write an <string> from progmen at <x>/<y> downwards to MAX7456 display memory |
219 | */ |
226 | */ |
220 | void write_string_pgm_down(uint8_t x, uint8_t y, const char *string, uint8_t length) { |
227 | void write_string_pgm_down(uint8_t x, uint8_t y, const char *string, uint8_t length) { |
221 | while (length--) |
228 | while (length--) |
222 | write_char((x + (y++ * 30)), pgm_read_byte(string++)); |
229 | write_char((x + (y++ * 30)), pgm_read_byte(string++)); |
223 | } |
230 | } |
224 | 231 | ||
225 | /** |
232 | /** |
226 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory |
233 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory |
227 | * <length> represents the length to rightbound the number |
234 | * <length> represents the length to rightbound the number |
228 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
235 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
229 | */ |
236 | */ |
230 | void write_ndigit_number_u(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
237 | void write_ndigit_number_u(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
- | 238 | if (number >= pow(10, length)) { |
|
- | 239 | number = pow(10, length) - 1; |
|
- | 240 | } |
|
231 | itoa(number, conv_array, 10); |
241 | itoa(number, conv_array, 10); |
232 | for (uint8_t i = 0; i < length - strlen(conv_array); i++) { |
242 | for (uint8_t i = 0; i < length - strlen(conv_array); i++) { |
233 | if (pad) write_char((x++)+(y * 30), 10); |
243 | if (pad) write_char((x++)+(y * 30), 10); |
234 | else write_ascii_char((x++)+(y * 30), 0); |
244 | else write_ascii_char((x++)+(y * 30), 0); |
235 | } |
245 | } |
236 | write_ascii_string(x, y, conv_array); |
246 | write_ascii_string(x, y, conv_array); |
237 | } |
247 | } |
238 | 248 | ||
239 | /** |
249 | /** |
240 | * Write a signed <number> at <x>/<y> to MAX7456 display memory |
250 | * Write a signed <number> at <x>/<y> to MAX7456 display memory |
241 | * <length> represents the length to rightbound the number |
251 | * <length> represents the length to rightbound the number |
242 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
252 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
243 | */ |
253 | */ |
244 | void write_ndigit_number_s(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
254 | void write_ndigit_number_s(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
- | 255 | if (number <= -pow(10, length)) { |
|
- | 256 | number = -pow(10, length) + 1; |
|
- | 257 | } else if (number >= pow(10, length)) { |
|
- | 258 | number = pow(10, length) - 1; |
|
- | 259 | } |
|
- | 260 | ||
245 | itoa(number, conv_array, 10); |
261 | itoa(number, conv_array, 10); |
- | 262 | if (strlen(conv_array) < length) { |
|
246 | for (uint8_t i = 0; i < length - strlen(conv_array); i++) { |
263 | for (uint8_t i = 0; i < length - strlen(conv_array); i++) { |
247 | if (pad) write_char((x++)+(y * 30), 10); |
264 | if (pad) write_char((x++)+(y * 30), 10); |
248 | else write_ascii_char((x++)+(y * 30), 0); |
265 | else write_ascii_char((x++)+(y * 30), 0); |
- | 266 | } |
|
249 | } |
267 | } |
250 | write_ascii_string(x, y, conv_array); |
268 | write_ascii_string(x, y, conv_array); |
251 | } |
269 | } |
252 | 270 | ||
253 | /** |
271 | /** |
254 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory as /10th of value |
272 | * Write a unsigned <number> at <x>/<y> to MAX7456 display memory as /10th of value |
255 | * <length> represents the length to rightbound the number |
273 | * <length> represents the length to rightbound the number |
256 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
274 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
257 | */ |
275 | */ |
258 | void write_ndigit_number_u_10th(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
276 | void write_ndigit_number_u_10th(uint8_t x, uint8_t y, uint16_t number, int16_t length, uint8_t pad) { |
- | 277 | if (number >= pow(10, length)) { |
|
- | 278 | number = pow(10, length) - 1; |
|
- | 279 | } |
|
259 | itoa(number, conv_array, 10); |
280 | itoa(number, conv_array, 10); |
260 | uint8_t len = strlen(conv_array); |
281 | uint8_t len = strlen(conv_array); |
261 | for (uint8_t i = 0; i < length - len; i++) { |
282 | for (uint8_t i = 0; i < length - len; i++) { |
262 | if (pad) write_char((x++)+(y * 30), 10); // zero |
283 | if (pad) write_char((x++)+(y * 30), 10); // zero |
263 | else write_char((x++)+(y * 30), 0); // blank |
284 | else write_char((x++)+(y * 30), 0); // blank |
264 | } |
285 | } |
265 | char rest = conv_array[len - 1]; |
286 | char rest = conv_array[len - 1]; |
266 | conv_array[len - 1] = 0; |
287 | conv_array[len - 1] = 0; |
267 | if (len == 1) { |
288 | if (len == 1) { |
268 | write_char((x - 1)+(y * 30), 10); // zero |
289 | write_char((x - 1)+(y * 30), 10); // zero |
269 | } else if (len == 2 && conv_array[0] == '-') { |
290 | } else if (len == 2 && conv_array[0] == '-') { |
270 | write_char((x - 1)+(y * 30), 0x49); // minus |
291 | write_char((x - 1)+(y * 30), 0x49); // minus |
271 | write_char((x)+(y * 30), 10); // zero |
292 | write_char((x)+(y * 30), 10); // zero |
272 | } else { |
293 | } else { |
273 | write_ascii_string(x, y, conv_array); |
294 | write_ascii_string(x, y, conv_array); |
274 | } |
295 | } |
275 | x += len - 1; |
296 | x += len - 1; |
276 | write_char((x++)+(y * 30), 65); // decimal point |
297 | write_char((x++)+(y * 30), 65); // decimal point |
277 | write_ascii_char((x++)+(y * 30), rest); // after dot |
298 | write_ascii_char((x++)+(y * 30), rest); // after dot |
278 | } |
299 | } |
279 | 300 | ||
280 | /** |
301 | /** |
281 | * Write a signed <number> at <x>/<y> to MAX7456 display memory as /10th of value |
302 | * Write a signed <number> at <x>/<y> to MAX7456 display memory as /10th of value |
282 | * <length> represents the length to rightbound the number |
303 | * <length> represents the length to rightbound the number |
283 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
304 | * <pad> = 1 will cause blank spaced to be filled up with zeros e.g. 007 instead of 7 |
284 | */ |
305 | */ |
285 | void write_ndigit_number_s_10th(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
306 | void write_ndigit_number_s_10th(uint8_t x, uint8_t y, int16_t number, int16_t length, uint8_t pad) { |
- | 307 | if (number >= pow(10, length)) { |
|
- | 308 | number = pow(10, length) - 1; |
|
- | 309 | } |
|
286 | itoa(number, conv_array, 10); |
310 | itoa(number, conv_array, 10); |
287 | uint8_t len = strlen(conv_array); |
311 | uint8_t len = strlen(conv_array); |
288 | for (uint8_t i = 0; i < length - len; i++) { |
312 | for (uint8_t i = 0; i < length - len; i++) { |
289 | if (pad) write_char((x++)+(y * 30), 10); // zero |
313 | if (pad) write_char((x++)+(y * 30), 10); // zero |
290 | else write_char((x++)+(y * 30), 0); // blank |
314 | else write_char((x++)+(y * 30), 0); // blank |
291 | } |
315 | } |
292 | char rest = conv_array[len - 1]; |
316 | char rest = conv_array[len - 1]; |
293 | conv_array[len - 1] = 0; |
317 | conv_array[len - 1] = 0; |
294 | if (len == 1) { |
318 | if (len == 1) { |
295 | write_char((x - 1)+(y * 30), 10); // zero |
319 | write_char((x - 1)+(y * 30), 10); // zero |
296 | } else if (len == 2 && conv_array[0] == '-') { |
320 | } else if (len == 2 && conv_array[0] == '-') { |
297 | write_char((x - 1)+(y * 30), 0x49); // minus |
321 | write_char((x - 1)+(y * 30), 0x49); // minus |
298 | write_char((x)+(y * 30), 10); // zero |
322 | write_char((x)+(y * 30), 10); // zero |
299 | } else { |
323 | } else { |
300 | write_ascii_string(x, y, conv_array); |
324 | write_ascii_string(x, y, conv_array); |
301 | } |
325 | } |
302 | x += len - 1; |
326 | x += len - 1; |
303 | write_char((x++)+(y * 30), 65); // decimal point |
327 | write_char((x++)+(y * 30), 65); // decimal point |
304 | write_ascii_char((x++)+(y * 30), rest); // after dot |
328 | write_ascii_char((x++)+(y * 30), rest); // after dot |
305 | } |
329 | } |
306 | 330 | ||
307 | /** |
331 | /** |
308 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
332 | * write <seconds> as human readable time at <x>/<y> to MAX7456 display mem |
309 | */ |
333 | */ |
310 | void write_time(uint8_t x, uint8_t y, uint16_t seconds) { |
334 | void write_time(uint8_t x, uint8_t y, uint16_t seconds) { |
311 | uint16_t min = seconds / 60; |
335 | uint16_t min = seconds / 60; |
312 | seconds -= min * 60; |
336 | seconds -= min * 60; |
313 | write_ndigit_number_u(x, y, min, 3, 0); |
337 | write_ndigit_number_u(x, y, min, 3, 0); |
314 | write_char_xy(x + 3, y, 68); |
338 | write_char_xy(x + 3, y, 68); |
315 | write_ndigit_number_u(x + 4, y, seconds, 2, 1); |
339 | write_ndigit_number_u(x + 4, y, seconds, 2, 1); |
316 | } |
340 | } |
317 | 341 | ||
318 | /** |
342 | /** |
319 | * wirte a <position> at <x>/<y> assuming it is a gps position for long-/latitude |
343 | * wirte a <position> at <x>/<y> assuming it is a gps position for long-/latitude |
320 | */ |
344 | */ |
321 | void write_gps_pos(uint8_t x, uint8_t y, int32_t position) { |
345 | void write_gps_pos(uint8_t x, uint8_t y, int32_t position) { |
322 | if (position < 0) { |
346 | if (position < 0) { |
323 | position ^= ~0; |
347 | position ^= ~0; |
324 | position++; |
348 | position++; |
325 | write_char_xy(x++, y, 0x49); // minus |
349 | write_char_xy(x++, y, 0x49); // minus |
326 | } else { |
350 | } else { |
327 | write_char_xy(x++, y, 0); // clear ('+' would be nice, maybe later) |
351 | write_char_xy(x++, y, 0); // clear ('+' would be nice, maybe later) |
328 | } |
352 | } |
329 | write_ndigit_number_u(x, y, (uint16_t)(position / (int32_t)10000000), 3, 1); |
353 | write_ndigit_number_u(x, y, (uint16_t)(position / (int32_t)10000000), 3, 1); |
330 | write_char_xy(x + 3, y, 65); // decimal point |
354 | write_char_xy(x + 3, y, 65); // decimal point |
331 | position = position - ((position / (int32_t)10000000) * (int32_t)10000000); |
355 | position = position - ((position / (int32_t)10000000) * (int32_t)10000000); |
332 | write_ndigit_number_u(x + 4, y, (uint16_t)(position / (int32_t)1000), 4, 1); |
356 | write_ndigit_number_u(x + 4, y, (uint16_t)(position / (int32_t)1000), 4, 1); |
333 | position = position - ((uint16_t)(position / (int32_t)1000) * (int32_t)1000); |
357 | position = position - ((uint16_t)(position / (int32_t)1000) * (int32_t)1000); |
334 | write_ndigit_number_u(x + 8, y, (uint16_t)position, 3, 1); |
358 | write_ndigit_number_u(x + 8, y, (uint16_t)position, 3, 1); |
335 | write_char_xy(x + 11, y, 0xD0); // degree symbol |
359 | write_char_xy(x + 11, y, 0xD0); // degree symbol |
336 | } |
360 | } |
337 | 361 | ||
338 | #endif |
362 | #endif |
339 | 363 |