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1053 | - | 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 | |||
23 | #include <avr/io.h> |
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24 | #include <avr/interrupt.h> |
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25 | #include <avr/pgmspace.h> |
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26 | #include <util/delay.h> |
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27 | |||
28 | #include "main.h" // LEDs |
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29 | #include "timer.h" // Keys |
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30 | #include "lcd.h" |
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31 | #include "jeti.h" |
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32 | #include "usart.h" |
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33 | #define font8x8 |
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34 | |||
35 | uint8_t JetiBuffer[32]; // 32 characters |
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36 | volatile uint8_t JetiBufferReady; |
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37 | |||
38 | |||
39 | //***************************************************************************** |
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40 | // |
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41 | #if 0 |
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42 | ISR (USART_RXC_vect) |
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43 | { |
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44 | uint8_t stat; |
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45 | uint8_t rh; |
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46 | uint8_t rl; |
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47 | static uint8_t jbp; |
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48 | |||
49 | stat = UCSRA; |
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50 | rh = UCSRB; |
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51 | rl = UDR; |
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52 | |||
53 | if (stat & ((1 << FE) | (1 << DOR0) | (1 << UPE))) |
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54 | { // discard buffer and start new on any error |
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55 | JetiBufferReady = 0; |
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56 | jbp = 0; |
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57 | //1234567890123456 |
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58 | lcd_printpj_at (0, 3, PSTR(" Communication "), 0); |
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59 | lcd_printpj_at (0, 4, PSTR(" Error "), 0); |
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60 | // LED6_TOGGLE; |
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61 | } |
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62 | else if ((rh & (1 << RXB8)) == 0) |
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63 | { // control |
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64 | if (rl == 0xfe) |
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65 | { // start condition |
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66 | JetiBufferReady = 0; |
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67 | jbp = 0; |
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68 | // LED1_ON; |
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69 | } |
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70 | else if (rl == 0xff) |
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71 | { // stop condition |
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72 | JetiBufferReady = 1; |
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73 | // LED1_OFF; |
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74 | } |
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75 | } |
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76 | else |
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77 | { // data |
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78 | if (jbp < 32) |
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79 | { |
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80 | JetiBuffer[jbp++] = rl; |
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81 | } |
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82 | } |
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83 | } |
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84 | #endif |
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85 | //***************************************************************************** |
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86 | // |
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87 | void JETI_Init (void) |
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88 | { |
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89 | DDRD &= ~(1 << DDD3); // set TXD1 pin as input |
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90 | PORTD &= ~(1 << PORTD3); // disable pullup on TXD1 pin |
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91 | |||
92 | // set clock divider |
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93 | #undef BAUD |
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94 | #define BAUD 9600 |
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95 | #include <util/setbaud.h> |
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96 | UBRRH = UBRRH_VALUE; |
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97 | UBRRL = UBRRL_VALUE; |
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98 | |||
99 | #if USE_2X |
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100 | UCSR1A |= (1 << U2X1); // enable double speed operation |
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101 | #else |
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102 | UCSRA &= ~(1 << U2X); // disable double speed operation |
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103 | #endif |
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104 | |||
105 | // set 9O1 |
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106 | UCSRC = (1 << UPM1) | (1 << UPM1) | (1 << UCSZ1) | (1 << UCSZ0); |
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107 | UCSRB = (1 << UCSZ2); |
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108 | |||
109 | // flush receive buffer |
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110 | while ( UCSRA & (1 << RXC) ) UDR; |
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111 | } |
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112 | |||
113 | //***************************************************************************** |
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114 | // disable the txd pin of usart |
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115 | void JETI_DisableTXD (void) |
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116 | { |
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117 | UCSRB &= ~(1 << TXEN); // disable TX} |
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118 | } |
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119 | |||
120 | //***************************************************************************** |
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121 | // enable the txd pin of usart |
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122 | void JETI_EnableTXD (void) |
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123 | { |
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124 | UCSRB |= (1 << TXEN); // enable TX |
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125 | } |
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126 | |||
127 | |||
128 | //***************************************************************************** |
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129 | // |
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130 | void JETI_putw (uint16_t c) |
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131 | { |
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132 | loop_until_bit_is_set(UCSRA, UDRE); |
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133 | UCSRB &= ~(1 << TXB8); |
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134 | if (c & 0x0100) |
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135 | { |
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136 | UCSRB |= (1 << TXB8); |
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137 | } |
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138 | UDR = c; |
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139 | } |
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140 | |||
141 | //***************************************************************************** |
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142 | // |
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143 | void JETI_putc (uint8_t c) |
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144 | { |
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145 | loop_until_bit_is_set(UCSRA, UDRE); |
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146 | // UCSRB &= ~(1 << TXB8); |
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147 | UCSRB |= (1 << TXB8); |
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148 | UDR = c; |
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149 | } |
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150 | |||
151 | //***************************************************************************** |
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152 | // |
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153 | void JETI_puts (char *s) |
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154 | { |
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155 | while (*s) |
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156 | { |
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157 | JETI_putc (*s); |
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158 | s++; |
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159 | } |
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160 | } |
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161 | |||
162 | //***************************************************************************** |
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163 | // |
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164 | void JETI_puts_p (const char *s) |
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165 | { |
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166 | while (pgm_read_byte(s)) |
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167 | { |
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168 | JETI_putc (pgm_read_byte(s)); |
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169 | s++; |
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170 | } |
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171 | } |
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172 | |||
173 | //***************************************************************************** |
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174 | // |
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175 | void JETI_put_start (void) |
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176 | { |
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177 | loop_until_bit_is_set(UCSRA, UDRE); |
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178 | UCSRB &= ~(1 << TXB8); |
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179 | UDR = 0xFE; |
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180 | } |
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181 | |||
182 | //***************************************************************************** |
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183 | // |
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184 | void JETI_put_stop (void) |
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185 | { |
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186 | loop_until_bit_is_set(UCSRA, UDRE); |
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187 | UCSRB &= ~(1 << TXB8); |
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188 | UDR = 0xFF; |
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189 | } |
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190 | |||
191 | //***************************************************************************** |
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192 | // |
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193 | void jeti (void) |
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194 | { |
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195 | uint8_t key; |
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196 | uint8_t i; |
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197 | |||
198 | // enable Rx |
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199 | UCSRB |= (1 << RXEN); |
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200 | UCSRB |= (1 << RXCIE); |
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201 | |||
202 | lcd_cls (); |
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203 | lcd_printp_at (0, 0, PSTR("Jeti Box Display"), 0); |
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204 | lcd_printpns_at (0, 7, PSTR(" \x1a \x1b \x1c \x1d"), 0); |
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205 | |||
206 | #ifdef font8x8 |
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207 | lcd_line(0, 21, 127, 21, 1); |
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208 | lcd_line(0, 22, 127, 22, 1); |
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209 | lcd_line(0, 40, 127, 40, 1); |
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210 | lcd_line(0, 41, 127, 41, 1); |
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211 | #else |
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212 | lcd_rect(10, 22, 98, 18, 1); |
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213 | #endif |
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214 | |||
215 | do |
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216 | { |
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217 | if (JetiBufferReady) |
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218 | { |
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219 | JETI_EnableTXD(); |
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220 | // LED2_ON; |
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221 | for (i = 0; i < 16; i++) |
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222 | { |
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223 | #ifdef font8x8 |
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224 | lcd_putc_jeti(i, 3, JetiBuffer[i], 0); |
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225 | #else |
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226 | lcd_putc (2 + i, 3, JetiBuffer[i], 0); |
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227 | #endif |
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228 | } |
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229 | for (i = 0; i < 16; i++) |
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230 | { |
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231 | #ifdef font8x8 |
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232 | lcd_putc_jeti(i, 4, JetiBuffer[i + 16], 0); |
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233 | #else |
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234 | lcd_putc (2 + i, 4, JetiBuffer[i + 16], 0); |
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235 | #endif |
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236 | } |
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237 | JetiBufferReady = 0; // invalidate buffer |
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238 | // LED2_OFF; |
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239 | |||
240 | _delay_ms (1); // |
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241 | // Writing to the display takes aprox. 5.8 ms @ 7 MHz and 3.2 ms @ 20 MHz. |
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242 | // With the additional 4 ms we had a 10 ms delay. |
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243 | // 10 ms works perfect with the MUI30 and the MT125 |
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244 | // But not with the TU transceiver module. |
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245 | |||
246 | key = get_key_short ((1 << KEY_MINUS) | (1 << KEY_PLUS) | (1 << KEY_ESC) | (1 << KEY_ENTER)); |
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247 | key = (key << 1) | (key >> 3); |
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248 | key = (~key) & 0xf0; |
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249 | |||
250 | JETI_putw((uint16_t) key); |
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251 | _delay_ms (1); |
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252 | JETI_DisableTXD(); |
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253 | } |
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254 | } |
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255 | while (!get_key_long (1 << KEY_ESC)); |
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256 | get_key_press(KEY_ALL); |
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257 | |||
258 | // disable Rx |
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259 | UCSRB &= ~(1 << RXCIE); |
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260 | UCSRB &= ~(1 << RXEN); |
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261 | } |