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1438 | - | 1 | /***************************************************************************** |
2 | * Copyright (C) 2009-2010 Peter "woggle" Mack, mac@denich.net * |
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3 | * * |
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4 | * see this fine thread on RCLine: * |
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5 | * http://www.rclineforum.de/forum/thread.php?threadid=226786 * |
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6 | * * |
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7 | * This program is free software; you can redistribute it and/or modify * |
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8 | * it under the terms of the GNU General Public License as published by * |
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9 | * the Free Software Foundation; either version 2 of the License. * |
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10 | * * |
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11 | * This program is distributed in the hope that it will be useful, * |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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14 | * GNU General Public License for more details. * |
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15 | * * |
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16 | * You should have received a copy of the GNU General Public License * |
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17 | * along with this program; if not, write to the * |
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18 | * Free Software Foundation, Inc., * |
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19 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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20 | * * |
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21 | *****************************************************************************/ |
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22 | |||
1521 | - | 23 | |
1438 | - | 24 | #include <avr/io.h> |
25 | #include <avr/interrupt.h> |
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26 | #include <avr/pgmspace.h> |
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27 | #include <util/delay.h> |
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28 | |||
29 | #include "main.h" // LEDs |
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30 | #include "timer.h" // Keys |
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31 | #include "lcd.h" |
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32 | #include "jeti.h" |
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33 | #include "usart.h" |
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34 | #define font8x8 |
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35 | |||
36 | uint8_t JetiBuffer[32]; // 32 characters |
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37 | volatile uint8_t JetiBufferReady; |
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38 | |||
39 | |||
40 | //***************************************************************************** |
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1521 | - | 41 | // |
1438 | - | 42 | #if 0 |
43 | ISR (USART_RXC_vect) |
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44 | { |
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45 | uint8_t stat; |
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46 | uint8_t rh; |
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47 | uint8_t rl; |
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48 | static uint8_t jbp; |
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1521 | - | 49 | |
1438 | - | 50 | stat = UCSRA; |
51 | rh = UCSRB; |
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52 | rl = UDR; |
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1521 | - | 53 | |
1438 | - | 54 | if (stat & ((1 << FE) | (1 << DOR0) | (1 << UPE))) |
55 | { // discard buffer and start new on any error |
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56 | JetiBufferReady = 0; |
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57 | jbp = 0; |
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58 | //1234567890123456 |
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59 | lcd_printpj_at (0, 3, PSTR(" Communication "), 0); |
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60 | lcd_printpj_at (0, 4, PSTR(" Error "), 0); |
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61 | // LED6_TOGGLE; |
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62 | } |
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63 | else if ((rh & (1 << RXB8)) == 0) |
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64 | { // control |
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65 | if (rl == 0xfe) |
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66 | { // start condition |
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67 | JetiBufferReady = 0; |
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68 | jbp = 0; |
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69 | // LED1_ON; |
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70 | } |
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71 | else if (rl == 0xff) |
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72 | { // stop condition |
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73 | JetiBufferReady = 1; |
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74 | // LED1_OFF; |
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75 | } |
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76 | } |
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77 | else |
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78 | { // data |
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79 | if (jbp < 32) |
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80 | { |
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81 | JetiBuffer[jbp++] = rl; |
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82 | } |
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83 | } |
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84 | } |
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85 | #endif |
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86 | //***************************************************************************** |
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1521 | - | 87 | // |
1438 | - | 88 | void JETI_Init (void) |
89 | { |
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90 | DDRD &= ~(1 << DDD3); // set TXD1 pin as input |
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91 | PORTD &= ~(1 << PORTD3); // disable pullup on TXD1 pin |
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1521 | - | 92 | |
1438 | - | 93 | // set clock divider |
94 | #undef BAUD |
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95 | #define BAUD 9600 |
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96 | #include <util/setbaud.h> |
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97 | UBRRH = UBRRH_VALUE; |
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98 | UBRRL = UBRRL_VALUE; |
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1521 | - | 99 | |
1438 | - | 100 | #if USE_2X |
101 | UCSR1A |= (1 << U2X1); // enable double speed operation |
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102 | #else |
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103 | UCSRA &= ~(1 << U2X); // disable double speed operation |
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104 | #endif |
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1521 | - | 105 | |
1438 | - | 106 | // set 9O1 |
107 | UCSRC = (1 << UPM1) | (1 << UPM1) | (1 << UCSZ1) | (1 << UCSZ0); |
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108 | UCSRB = (1 << UCSZ2); |
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1521 | - | 109 | |
1438 | - | 110 | // flush receive buffer |
111 | while ( UCSRA & (1 << RXC) ) UDR; |
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112 | } |
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113 | |||
114 | //***************************************************************************** |
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115 | // disable the txd pin of usart |
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116 | void JETI_DisableTXD (void) |
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117 | { |
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118 | UCSRB &= ~(1 << TXEN); // disable TX} |
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119 | } |
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120 | |||
121 | //***************************************************************************** |
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122 | // enable the txd pin of usart |
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123 | void JETI_EnableTXD (void) |
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124 | { |
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125 | UCSRB |= (1 << TXEN); // enable TX |
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126 | } |
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127 | |||
128 | |||
129 | //***************************************************************************** |
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1521 | - | 130 | // |
1438 | - | 131 | void JETI_putw (uint16_t c) |
132 | { |
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133 | loop_until_bit_is_set(UCSRA, UDRE); |
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134 | UCSRB &= ~(1 << TXB8); |
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135 | if (c & 0x0100) |
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136 | { |
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137 | UCSRB |= (1 << TXB8); |
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138 | } |
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139 | UDR = c; |
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140 | } |
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141 | |||
142 | //***************************************************************************** |
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1521 | - | 143 | // |
1438 | - | 144 | void JETI_putc (uint8_t c) |
145 | { |
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146 | loop_until_bit_is_set(UCSRA, UDRE); |
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147 | // UCSRB &= ~(1 << TXB8); |
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148 | UCSRB |= (1 << TXB8); |
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149 | UDR = c; |
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150 | } |
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151 | |||
152 | //***************************************************************************** |
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1521 | - | 153 | // |
1438 | - | 154 | void JETI_puts (char *s) |
155 | { |
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156 | while (*s) |
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157 | { |
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158 | JETI_putc (*s); |
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159 | s++; |
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160 | } |
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161 | } |
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162 | |||
163 | //***************************************************************************** |
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1521 | - | 164 | // |
1438 | - | 165 | void JETI_puts_p (const char *s) |
166 | { |
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167 | while (pgm_read_byte(s)) |
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168 | { |
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169 | JETI_putc (pgm_read_byte(s)); |
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170 | s++; |
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171 | } |
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172 | } |
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173 | |||
174 | //***************************************************************************** |
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1521 | - | 175 | // |
1438 | - | 176 | void JETI_put_start (void) |
177 | { |
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178 | loop_until_bit_is_set(UCSRA, UDRE); |
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179 | UCSRB &= ~(1 << TXB8); |
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180 | UDR = 0xFE; |
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181 | } |
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182 | |||
183 | //***************************************************************************** |
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1521 | - | 184 | // |
1438 | - | 185 | void JETI_put_stop (void) |
186 | { |
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187 | loop_until_bit_is_set(UCSRA, UDRE); |
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188 | UCSRB &= ~(1 << TXB8); |
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189 | UDR = 0xFF; |
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190 | } |
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191 | |||
192 | //***************************************************************************** |
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1521 | - | 193 | // |
1438 | - | 194 | void jeti (void) |
195 | { |
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196 | uint8_t key; |
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197 | uint8_t i; |
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198 | |||
199 | // enable Rx |
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200 | UCSRB |= (1 << RXEN); |
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201 | UCSRB |= (1 << RXCIE); |
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1521 | - | 202 | |
1438 | - | 203 | lcd_cls (); |
204 | lcd_printp_at (0, 0, PSTR("Jeti Box Display"), 0); |
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205 | lcd_printpns_at (0, 7, PSTR(" \x1a \x1b \x1c \x1d"), 0); |
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1521 | - | 206 | |
1438 | - | 207 | #ifdef font8x8 |
208 | lcd_line(0, 21, 127, 21, 1); |
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209 | lcd_line(0, 22, 127, 22, 1); |
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210 | lcd_line(0, 40, 127, 40, 1); |
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211 | lcd_line(0, 41, 127, 41, 1); |
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212 | #else |
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213 | lcd_rect(10, 22, 98, 18, 1); |
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214 | #endif |
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1521 | - | 215 | |
1438 | - | 216 | do |
217 | { |
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218 | if (JetiBufferReady) |
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219 | { |
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220 | JETI_EnableTXD(); |
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221 | // LED2_ON; |
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222 | for (i = 0; i < 16; i++) |
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223 | { |
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224 | #ifdef font8x8 |
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225 | lcd_putc_jeti(i, 3, JetiBuffer[i], 0); |
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226 | #else |
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227 | lcd_putc (2 + i, 3, JetiBuffer[i], 0); |
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228 | #endif |
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229 | } |
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230 | for (i = 0; i < 16; i++) |
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231 | { |
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232 | #ifdef font8x8 |
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233 | lcd_putc_jeti(i, 4, JetiBuffer[i + 16], 0); |
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234 | #else |
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235 | lcd_putc (2 + i, 4, JetiBuffer[i + 16], 0); |
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236 | #endif |
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237 | } |
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238 | JetiBufferReady = 0; // invalidate buffer |
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239 | // LED2_OFF; |
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1521 | - | 240 | |
1438 | - | 241 | _delay_ms (1); // |
242 | // Writing to the display takes aprox. 5.8 ms @ 7 MHz and 3.2 ms @ 20 MHz. |
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243 | // With the additional 4 ms we had a 10 ms delay. |
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244 | // 10 ms works perfect with the MUI30 and the MT125 |
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245 | // But not with the TU transceiver module. |
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1521 | - | 246 | |
1438 | - | 247 | key = get_key_short ((1 << KEY_MINUS) | (1 << KEY_PLUS) | (1 << KEY_ESC) | (1 << KEY_ENTER)); |
248 | key = (key << 1) | (key >> 3); |
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249 | key = (~key) & 0xf0; |
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1521 | - | 250 | |
1438 | - | 251 | JETI_putw((uint16_t) key); |
252 | _delay_ms (1); |
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253 | JETI_DisableTXD(); |
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254 | } |
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255 | } |
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256 | while (!get_key_long (1 << KEY_ESC)); |
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257 | get_key_press(KEY_ALL); |
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258 | |||
259 | // disable Rx |
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260 | UCSRB &= ~(1 << RXCIE); |
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261 | UCSRB &= ~(1 << RXEN); |
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262 | } |