📄 playback.lst
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202 =2 sbit AC = 0xD6;
203 =2 sbit CY = 0xD7;
204 =2
205 =2 /*------------------------------------------------
206 =2 Interrupt Vectors:
207 =2 Interrupt Address = (Number * 8) + 3
208 =2 ------------------------------------------------*/
209 =2 #define IE0_VECTOR 0 /* 0x03 External Interrupt 0 */
210 =2 #define TF0_VECTOR 1 /* 0x0B Timer 0 */
211 =2 #define IE1_VECTOR 2 /* 0x13 External Interrupt 1 */
212 =2 #define TF1_VECTOR 3 /* 0x1B Timer 1 */
213 =2 #define SIO_VECTOR 4 /* 0x23 Serial port */
214 =2
215 =2 #define TF2_VECTOR 5 /* 0x2B Timer 2 */
216 =2 #define EX2_VECTOR 5 /* 0x2B External Interrupt 2 */
217 =2
218 =2 /*------------------------------------------------
219 =2 ------------------------------------------------*/
220 =2 #endif
221 =2
222 =2
33 =1
34 =1 // Include oscillator / chip details here
35 =1 // (essential if generic delays / timeouts are used)
36 =1 // -
37 =1 // Oscillator / resonator frequency (in Hz) e.g. (11059200UL)
38 =1 #define OSC_FREQ (12000000UL)
39 =1
40 =1 // Number of oscillations per instruction (4, 6 or 12)
41 =1 // 12 - Original 8051 / 8052 and numerous modern versions
42 =1 // 6 - Various Infineon and Philips devices, etc.
43 =1 // 4 - Dallas, etc.
44 =1 //
45 =1 // Take care with Dallas devices
46 =1 // - Timers default to *12* osc ticks unless CKCON is modified
47 =1 // - If using generic code on a Dallas device, use 12 here
48 =1 #define OSC_PER_INST (12)
49 =1
C51 COMPILER V6.10 PLAYBACK 04/19/2001 12:07:07 PAGE 6
50 =1 //------------------------------------------------------------------
51 =1 // SHOULD NOT NEED TO EDIT THE SECTIONS BELOW
52 =1 //------------------------------------------------------------------
53 =1 typedef unsigned char tByte;
54 =1 typedef unsigned int tWord;
55 =1 typedef unsigned long tLong;
56 =1
57 =1 // Misc #defines
58 =1 #ifndef TRUE
59 =1 #define FALSE 0
60 =1 #define TRUE (!FALSE)
61 =1 #endif
62 =1
63 =1 #define RETURN_NORMAL (bit) 0
64 =1 #define RETURN_ERROR (bit) 1
65 =1
66 =1
67 =1 //------------------------------------------------------------------
68 =1 // Interrupts
69 =1 // - see Chapter 13.
70 =1 //------------------------------------------------------------------
71 =1
72 =1 // Generic 8051/52 timer interrupts (used in most schedulers)
73 =1 #define INTERRUPT_Timer_0_Overflow 1
74 =1 #define INTERRUPT_Timer_1_Overflow 3
75 =1 #define INTERRUPT_Timer_2_Overflow 5
76 =1
77 =1 // Additional interrupts (used in shared-clock schedulers)
78 =1 #define INTERRUPT_EXTERNAL_0 0
79 =1 #define INTERRUPT_EXTERNAL_1 2
80 =1 #define INTERRUPT_UART_Rx_Tx 4
81 =1 #define INTERRUPT_CAN_c515c 17
82 =1
83 =1 //------------------------------------------------------------------
84 =1 // Error codes
85 =1 // - see Chapter 14.
86 =1 //------------------------------------------------------------------
87 =1
88 =1 #define ERROR_SCH_TOO_MANY_TASKS (1)
89 =1 #define ERROR_SCH_CANNOT_DELETE_TASK (2)
90 =1
91 =1 #define ERROR_SCH_WAITING_FOR_SLAVE_TO_ACK (3)
92 =1 #define ERROR_SCH_WAITING_FOR_START_COMMAND_FROM_MASTER (3)
93 =1
94 =1 #define ERROR_SCH_ONE_OR_MORE_SLAVES_DID_NOT_START (4)
95 =1 #define ERROR_SCH_LOST_SLAVE (5)
96 =1
97 =1 #define ERROR_SCH_CAN_BUS_ERROR (6)
98 =1
99 =1 #define ERROR_I2C_WRITE_BYTE (10)
100 =1 #define ERROR_I2C_READ_BYTE (11)
101 =1 #define ERROR_I2C_WRITE_BYTE_AT24C64 (12)
102 =1 #define ERROR_I2C_READ_BYTE_AT24C64 (13)
103 =1 #define ERROR_I2C_DS1621 (14)
104 =1
105 =1 #define ERROR_USART_TI (21)
106 =1 #define ERROR_USART_WRITE_CHAR (22)
107 =1
108 =1 #define ERROR_SPI_EXCHANGE_BYTES_TIMEOUT (31)
109 =1 #define ERROR_SPI_X25_TIMEOUT (32)
110 =1 #define ERROR_SPI_MAX1110_TIMEOUT (33)
111 =1
C51 COMPILER V6.10 PLAYBACK 04/19/2001 12:07:07 PAGE 7
112 =1 #define ERROR_ADC_MAX150_TIMEOUT (44)
113 =1
114 =1 #endif
115 =1
116 =1 /*------------------------------------------------------------------*-
117 =1 ---- END OF FILE -------------------------------------------------
118 =1 -*------------------------------------------------------------------*/
32 #include "Port.h"
1 =1 /*------------------------------------------------------------------*-
2 =1
3 =1 Port.H (v1.00)
4 =1
5 =1 ------------------------------------------------------------------
6 =1
7 =1 'Port Header' (see Chap 10) for the project DAC_Spee (see Chap 34)
8 =1
9 =1
10 =1 COPYRIGHT
11 =1 ---------
12 =1
13 =1 This code is from the book:
14 =1
15 =1 PATTERNS FOR TIME-TRIGGERED EMBEDDED SYSTEMS by Michael J. Pont
16 =1 [Pearson Education, 2001; ISBN: 0-201-33138-1].
17 =1
18 =1 This code is copyright (c) 2001 by Michael J. Pont.
19 =1
20 =1 See book for copyright details and other information.
21 =1
22 =1 -*------------------------------------------------------------------*/
23 =1
24 =1 // ------ Sch51.C ----------------------------------------
25 =1
26 =1 // Comment this line out if error reporting is NOT required
27 =1 #define SCH_REPORT_ERRORS
28 =1
29 =1 #ifdef SCH_REPORT_ERRORS
30 =1 // The port on which error codes will be displayed
31 =1 // ONLY USED IF ERRORS ARE REPORTED
32 =1 #define Error_port P1
33 =1
34 =1 #endif
35 =1
36 =1 // ------ Playback.c -----------------------------------------------
37 =1
38 =1 #define SPEECH_Port P2
39 =1 sbit SPEECH_CSLSB_pin = P0^0;
40 =1 sbit SPEECH_CSMSB_pin = P0^1;
41 =1
42 =1 // ------ Swit_Ply.C -----------------------------------------------
43 =1
44 =1 // Connect single push-button switch on this pin (to gnd)
45 =1 // - debounced in software
46 =1 sbit Sw_pin = P3^3; // The switch pin
47 =1
48 =1 /*------------------------------------------------------------------*-
49 =1 ---- END OF FILE -------------------------------------------------
50 =1 -*------------------------------------------------------------------*/
51 =1
52 =1
53 =1
33
C51 COMPILER V6.10 PLAYBACK 04/19/2001 12:07:07 PAGE 8
34 #include "Playback.h"
1 =1 /*------------------------------------------------------------------*-
2 =1
3 =1 Playback.H (v1.00)
4 =1
5 =1 ------------------------------------------------------------------
6 =1
7 =1 - See Playback.C for details.
8 =1
9 =1
10 =1 COPYRIGHT
11 =1 ---------
12 =1
13 =1 This code is from the book:
14 =1
15 =1 PATTERNS FOR TIME-TRIGGERED EMBEDDED SYSTEMS by Michael J. Pont
16 =1 [Pearson Education, 2001; ISBN: 0-201-33138-1].
17 =1
18 =1 This code is copyright (c) 2001 by Michael J. Pont.
19 =1
20 =1 See book for copyright details and other information.
21 =1
22 =1 -*------------------------------------------------------------------*/
23 =1
24 =1 // ------ Public function prototypes -------------------------------
25 =1
26 =1 void SPEECH_PLAYBACK_Update(void);
27 =1 void SPEECH_PLAYBACK_Play_Sample(const tWord);
28 =1
29 =1 /*------------------------------------------------------------------*-
30 =1 ---- END OF FILE -------------------------------------------------
31 =1 -*------------------------------------------------------------------*/
35
36 // ------ Public constants -----------------------------------------
37
38 // The speech data we are going to play
39 extern const tWord code BA_12_BIT_10KHZ_G[3500];
40
41 // ------ Public variable declarations -----------------------------
42
43 extern bit Sw_pressed_G;
44
45 // ------ Public variable definitions ------------------------------
46
47 bit SPEECH_PLAYBACK_Playing_G = 0;
48
49 // ------ Private variables ----------------------------------------
50
51 static bit LED_state_G;
52
53 // ------ Private constants ----------------------------------------
54
55 #define T_100micros (65536 - (tWord)((OSC_FREQ / 13000)/(OSC_PER_INST)))
56 #define T_100micros_H (T_100micros / 256)
57 #define T_100micros_L (T_100micros % 256)
58
59 /*------------------------------------------------------------------*-
60
61 SPEECH_PLAYBACK_Update()
62
63 The main update function for the playback software.
64
C51 COMPILER V6.10 PLAYBACK 04/19/2001 12:07:07 PAGE 9
65 This will usually be scheduled, as required, as a one-shot
66 (co-operative) task.
67
68 Task duration is approximately 350 milliseconds.
69
70 User can abort at any time by releasing the switch.
71
72 -*------------------------------------------------------------------*/
73 void SPEECH_PLAYBACK_Update(void)
74 {
75 1 int Sample;
76 1
77 1 SPEECH_PLAYBACK_Playing_G = 0;
78 1
79 1 // Configure Timer 0 as a 16-bit timer
80 1 TMOD &= 0xF0; // Clear all T0 bits (T1 left unchanged)
81 1 TMOD |= 0x01; // Set required T0 bits (T1 left unchanged)
82 1 ET0 = 0; // No interrupts
83 1
84 1 // Playback at ~ 10 kHz
85 1 for (Sample = 0; Sample < 3500; Sample++)
86 1 {
87 2 // Avoid multiple calls to this function
88 2 SPEECH_PLAYBACK_Playing_G = 1;
89 2
90 2 // Play a sample
91 2 SPEECH_PLAYBACK_Play_Sample(BA_12_BIT_10KHZ_G[Sample]);
92 2
93 2 // Delay ~0.1 ms (to give 10 kHz sample rate)
94 2 TR0 = 0;
95 2 TH0 = T_100micros_H;
96 2 TL0 = T_100micros_L;
97 2 TF0 = 0; // Clear flag
98 2 TR0 = 1; // Start timer
99 2 while (!TF0);
100 2 TR0 = 0;
101 2
102 2 if (!Sw_pressed_G)
103 2 {
104 3 break; // Abort loop if user releases switch
105 3 }
106 2 }
107 1
108 1 // Set flag to 0 as we leave this function
109 1 SPEECH_PLAYBACK_Playing_G = 0;
110 1 }
111
112 /*------------------------------------------------------------------*-
113
114 SPEECH_PLAYBACK_Play_Sample()
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