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comparison testavr.c @ 11:ccc39c9f320b

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Enable pretty LED command.
author darius
date Fri, 16 Jul 2004 23:39:58 +0930
parents eb1faf51968e
children 2c03ec600dbc
comparison
equal deleted inserted replaced
10:eb1faf51968e 11:ccc39c9f320b
45 void uart_puts(const char *addr); 45 void uart_puts(const char *addr);
46 int uart_putc(char c); 46 int uart_putc(char c);
47 int uart_getc(void); 47 int uart_getc(void);
48 int beginswith_P(const char *s1, const char *s2); 48 int beginswith_P(const char *s1, const char *s2);
49 49
50 #if 0
51 uint8_t PROGMEM ledvals[] = {0x01, 0x03, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0, 0xc0, 0x80}; 50 uint8_t PROGMEM ledvals[] = {0x01, 0x03, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0, 0xc0, 0x80};
52 static uint8_t dir = 0; 51 static uint8_t dir = 0;
53 static volatile uint8_t leds = 0; 52 static volatile uint8_t leds = 0;
54 static uint8_t ledpos = 0; 53 static uint8_t ledpos = 0;
55 54
79 doleds: 78 doleds:
80 TCNT0 = 0; 79 TCNT0 = 0;
81 80
82 PORTA = pgm_read_byte(&ledvals[ledpos]); 81 PORTA = pgm_read_byte(&ledvals[ledpos]);
83 } 82 }
84 #endif
85 83
86 void 84 void
87 usleep(uint16_t usec) { 85 usleep(uint16_t usec) {
88 /* 4Mhz = 250ns per clock cycle */ 86 /* 4Mhz = 250ns per clock cycle */
89 usec /= 2; 87 usec /= 2;
101 uint8_t ROM[8]; 99 uint8_t ROM[8];
102 char cmdbuf[40]; 100 char cmdbuf[40];
103 int i; 101 int i;
104 102
105 cli(); 103 cli();
106 #if 0
107 outp(0xff, DDRA); 104 outp(0xff, DDRA);
108 105
109 /* Timer Clock divisor - CK/1024 */ 106 /* Timer Clock divisor - CK/1024 */
110 outp(BV(CS00) | BV(CS02), TCCR0); 107 outp(BV(CS00) | BV(CS02), TCCR0);
111 #endif 108
112 outp(0xfe, DDRC); 109 outp(0xfc, DDRC);
113 outp(0x00, PORTC); 110 outp(0x00, PORTC);
114 111
115 /* Init UART */ 112 /* Init UART */
116 outp(UART_BAUD_SELECT(UART_BAUD_RATE,XTAL_CPU), UBRR); 113 outp(UART_BAUD_SELECT(UART_BAUD_RATE,XTAL_CPU), UBRR);
117 114
118 /* Enable receiver and transmitter. Turn on transmit interrupts */ 115 /* Enable receiver and transmitter. Turn on transmit interrupts */
119 outp(BV(RXEN) | BV(TXEN), UCR); 116 outp(BV(RXEN) | BV(TXEN), UCR);
120 117
118 #if 0
119 int was;
120 uint32_t count;
121
122 was = inp(PINC) & 0x02;
123
124 count = 0;
125 while (1) {
126 if (was) {
127 if (!(inp(PINC) & 0x02)) {
128 sprintf_P(cmdbuf, PSTR("high -> low, i = %d\n\r"), count);
129 uart_puts(cmdbuf);
130 count = 0;
131 was = 0x00;
132 }
133 } else {
134 if ((inp(PINC) & 0x02)) {
135 sprintf_P(cmdbuf, PSTR("low -> high, i = %d\n\r"), count);
136 uart_puts(cmdbuf);
137 count = 0;
138 was = 0x02;
139 }
140 }
141
142 count++;
143 }
144 #endif
145
121 uart_putsP(PSTR("\n\r\n\r===============\n\r" 146 uart_putsP(PSTR("\n\r\n\r===============\n\r"
122 "Inited!\n\r\n\r")); 147 "Inited!\n\r\n\r"));
123 148
124 while (1) { 149 while (1) {
125 uart_putsP(PSTR("> ")); 150 uart_putsP(PSTR("> "));
161 "re Read a bit\n\r" 186 "re Read a bit\n\r"
162 "rb Read a byte\n\r" 187 "rb Read a byte\n\r"
163 "wr bit Write a bit\n\r" 188 "wr bit Write a bit\n\r"
164 "wb byte Write a byte (hex)\n\r" 189 "wb byte Write a byte (hex)\n\r"
165 "wc cmd [ROMID] Write command\n\r" 190 "wc cmd [ROMID] Write command\n\r"
166 "te ROMID Read the temperature from a DS1820\n\r")); 191 "te ROMID Read the temperature from a DS1820\n\r"
192 "le Turn pretty LED cycling on\n\r"));
193
167 continue; 194 continue;
168 } 195 }
169 196
170 if (i < 2) 197 if (i < 2)
171 goto badcmd; 198 goto badcmd;
330 ROM[7]); 357 ROM[7]);
331 uart_puts(cmdbuf); 358 uart_puts(cmdbuf);
332 359
333 i = OWNext(ROM, 1, 0); 360 i = OWNext(ROM, 1, 0);
334 } while (1); 361 } while (1);
335 362 } else if (cmdbuf[0] == 'l' && cmdbuf[1] == 'e') {
336 #if 0
337
338 } else if (cmdbuf[0] == 'l' && cmdbuf[1] == 'e' && cmdbuf[2] == 'd') {
339 if (leds == 0) { 363 if (leds == 0) {
340 leds = 1; 364 leds = 1;
341 ledpos = 0; 365 ledpos = 0;
342 outp(0, TCNT0); 366 outp(0, TCNT0);
343 sbi(TIMSK, TOIE0); 367 sbi(TIMSK, TOIE0);
349 PORTA = 0x00; 373 PORTA = 0x00;
350 cbi(TIMSK, TOIE0); 374 cbi(TIMSK, TOIE0);
351 cli(); 375 cli();
352 uart_putsP(PSTR("Stopping\n\r")); 376 uart_putsP(PSTR("Stopping\n\r"));
353 } 377 }
354 #endif
355 } else { 378 } else {
356 badcmd: 379 badcmd:
357 uart_putsP(PSTR("Unknown command, ? for a list\n\r")); 380 uart_putsP(PSTR("Unknown command, ? for a list\n\r"));
358 } 381 }
359 382