4.104.114.84.95
Last change
on this file since 78111c3 was
78111c3,
checked in by Till Straumann <strauman@…>, on 11/03/05 at 02:52:41
|
2005-11-02 straumanatslacdotstanford.edu
- libchip/i2c/i2c-2b-eeprom.c, libchip/i2c/i2c-2b-eeprom.h,
libchip/i2c/i2c-ds1621.c, libchip/i2c/i2c-ds1621.h: New files.
- libchip/Makefile.am, libchip/preinstall.am, wrapup/Makefile.am:
added a simple API/library
for i2c devices and drivers for i2c 2-byte eeproms and a ds1621
temperature sensor; API is documented in libi2c.h
|
-
Property mode set to
100644
|
File size:
1000 bytes
|
Line | |
---|
1 | /* $Id$ */ |
---|
2 | #ifndef I2C_DS_1621_DRIVER_H |
---|
3 | #define I2C_DS_1621_DRIVER_H |
---|
4 | |
---|
5 | /* Trivial i2c driver for the maxim DS1621 temperature sensor; |
---|
6 | * just implements reading constant conversions with 8-bit |
---|
7 | * resolution. |
---|
8 | * Demonstrates the implementation of a i2c high-level driver. |
---|
9 | */ |
---|
10 | |
---|
11 | /* Author: Till Straumann, 2005 */ |
---|
12 | |
---|
13 | #define DS1621_CMD_READ_TEMP 0xaa |
---|
14 | #define DS1621_CMD_CSR_ACCESS 0xac |
---|
15 | #define DS1621_CMD_START_CONV 0xee |
---|
16 | |
---|
17 | /* CSR bits */ |
---|
18 | #define DS1621_CSR_DONE (1<<7) |
---|
19 | #define DS1621_CSR_TEMP_HI (1<<6) /* T >= hi register */ |
---|
20 | #define DS1621_CSR_TEMP_LO (1<<5) /* T <= lo register */ |
---|
21 | #define DS1621_CSR_NVMEM_BSY (1<<4) /* non-volatile memory busy */ |
---|
22 | #define DS1621_CSR_OUT_POL (1<<1) /* Thermostat output active polarity */ |
---|
23 | #define DS1621_CSR_1SHOT (1<<0) /* Oneshot mode */ |
---|
24 | |
---|
25 | #include <rtems.h> |
---|
26 | #include <rtems/libi2c.h> |
---|
27 | |
---|
28 | #ifdef __cplusplus |
---|
29 | extern "C" { |
---|
30 | #endif |
---|
31 | |
---|
32 | /* for registration with libi2c */ |
---|
33 | extern rtems_libi2c_drv_t *i2c_ds1621_driver_descriptor; |
---|
34 | |
---|
35 | #ifdef __cplusplus |
---|
36 | } |
---|
37 | #endif |
---|
38 | |
---|
39 | #endif |
---|
Note: See
TracBrowser
for help on using the repository browser.