Echelon I/O Model Reference for Smart Transceivers and Neu Instrukcja Użytkownika Strona 139
- Strona / 209
- Spis treści
- BOOKMARKI
Oceniono. / 5. Na podstawie oceny klientów
I/O Model Reference 129
TCCLK_* macros defined in <echelon.h>). This function overrides the
resolution value specified for clock() within the I/O object declaration.
See Appendix
A,
Timer/Counter Periods and Resolution
, on page 187, for a
description of the timer resolution and maximum range for each specification
of the clock() value or each value of the TCCLK_* macros. See the
Neuron C
Reference Guide
for information about the io_set_clock() function.
io-object-name
A user-specified name for the I/O object, in the ANSI C format for variable
identifiers.
Usage
unsigned long
input-value
,
control-value
;
io_in_request(
io-object-name
,
control-value
);
input-value
= io_in(
io-object-name
);
Example
IO_4 input dualslope ded clock(0) ioDualSlope;
mtimer repeating goTime;
unsigned long data;
...
when (reset) {
goTime = 500; // Perform a measurement every 500ms
}
when (timer_expires(goTime)) {
// Start the first integration period (9ms at 10MHz).
io_in_request(ioDualSlope, 45000UL);
}
when (io_update_occurs(ioDualSlope)) {
// The value at input_value is biased by the
// negative value of the control value used.
// Correct this by adding it back now.
data = input_value + 45000UL;
}
Edgelog Input
The edgelog I/O model can record a stream of input pulses that measure the
consecutive low and high periods at the input and store them in user-defined
storage (see
Figure 49 on page 130). The values stored represent the units of
clock period between rising and falling input signal edges.
For a Series 3100 device, this I/O model measures a series of both high and low
input signal periods on a single input pin, IO_4, in units of the clock period:
time_on/time_off (ns) = value_stored * 2000 * 2^(clock) / input_clock (MHz)
where clock ranges from 0..7
- I/O Model Reference for Smart 1
- Transceivers and Neuron Chips 1
- Welcome 3
- Audience 3
- Related Documentation 3
- Mini FX User’s Guide 4
- Series 5000 Chip Data Book 4
- Table of Contents 5
- Introduction 11
- Overview 12
- Direct I/O Models 14
- Parallel I/O Models 14
- Serial I/O Models 15
- Overlaying I/O Objects 18
- I/O Timing Issues 22
- Information 24
- Multiplexing I/O Models 28
- General I/O Functions 28
- Neuron C Reference Guide 29
- I/O Events 31
- Neuron C Programmer’s Guide 31
- Using Functions or Events 35
- Timer/Counter I/O Models 38
- Output Models 39
- Bit Input/Output 42
- Bit Input Example 45
- Bit Output Example 45
- Byte Input/Output 45
- Byte Input Example 47
- Byte Output Example 48
- Leveldetect Input 48
- Nibble Input/Output 50
- Nibble Input Example 53
- Nibble Output Example 53
- Touch Input/Output 53
- Muxbus Input/Output 62
- Parallel Input/Output 65
- Master Program 71
- Slave Program 72
- Slave B Mode 73
- Token Passing 76
- Handshaking 76
- Transferring Data 76
- Resynchronization Procedure 77
- Using the IRQ Signal 80
- Bitshift Input/Output 86
- Bitshift Input Example 90
- Bitshift Output Example 90
- I2C Input/Output 90
- Magcard Bitstream Input 94
- Magcard Input 96
- Magtrack1 Input 99
- Programming Considerations 100
- Syntax 101
- Example 102
- Neurowire Input/Output 102
- Hardware Considerations 102
- Neurowire Master Mode 103
- Neurowire Slave Mode 104
- SCI (UART) Input/Output 108
- Serial Input/Output 113
- Serial Input Example 117
- Serial Output Example 117
- SPI Input/Output 117
- SPI Master 122
- SPI Master (Neurowire 122
- SPI Slave 123
- Wiegand Input 128
- Timer/Counter Input Models 133
- Dualslope Input 135
- Neuron C Resources 138
- Edgelog Input 139
- Infrared Input 144
- Ontime Input 148
- Period Input 151
- Pulsecount Input 155
- Quadrature Input 158
- Totalcount Input 161
- Timer/Counter Output Models 165
- Edgedivide Output 166
- Frequency Output 169
- Infrared Pattern Output 172
- Oneshot Output 175
- Pulsecount Output 178
- Pulsewidth Output 181
- Stretched Triac Output 184
- Triac Output 189
- Example 1 192
- Example 2 193
- Triggered Count Output 193
- Timer/Counter Periods and 197
- Resolution 197
- InputClock 199
- And so on 200
- Period = 201
- Frequency = 1 / 201
- 196 Index 206
Powiązane produkty i podręczniki dla Sprzęt komputerowy Echelon I/O Model Reference for Smart Transceivers and Neu
(237 strony)© 2020, manymanuals.pl. Wszelkie prawa zastrzeżone. | 0.071 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Komentarze do niniejszej Instrukcji