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Misc ds18b20 fixups/enhancements

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add onewire_power() after CONVERT_T
Fix naming of DS18B20_* constants
This commit is contained in:
Alex Stewart 2016-03-15 14:50:37 -07:00
parent 9c37da6834
commit 60e468bdb2
1 changed files with 17 additions and 15 deletions
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32
extras/ds18b20/ds18b20.c
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@ -4,17 +4,17 @@
#include "onewire/onewire.h"
#include "ds18b20.h"
#define DS1820_WRITE_SCRATCHPAD 0x4E
#define DS1820_READ_SCRATCHPAD 0xBE
#define DS1820_COPY_SCRATCHPAD 0x48
#define DS1820_READ_EEPROM 0xB8
#define DS1820_READ_PWRSUPPLY 0xB4
#define DS1820_SEARCHROM 0xF0
#define DS1820_SKIP_ROM 0xCC
#define DS1820_READROM 0x33
#define DS1820_MATCHROM 0x55
#define DS1820_ALARMSEARCH 0xEC
#define DS1820_CONVERT_T 0x44
#define DS18B20_WRITE_SCRATCHPAD 0x4E
#define DS18B20_READ_SCRATCHPAD 0xBE
#define DS18B20_COPY_SCRATCHPAD 0x48
#define DS18B20_READ_EEPROM 0xB8
#define DS18B20_READ_PWRSUPPLY 0xB4
#define DS18B20_SEARCHROM 0xF0
#define DS18B20_SKIP_ROM 0xCC
#define DS18B20_READROM 0x33
#define DS18B20_MATCHROM 0x55
#define DS18B20_ALARMSEARCH 0xEC
#define DS18B20_CONVERT_T 0x44
uint8_t ds18b20_read_all(uint8_t pin, ds_sensor_t *result) {
onewire_addr_t addr;
@ -32,13 +32,14 @@ uint8_t ds18b20_read_all(uint8_t pin, ds_sensor_t *result) {
onewire_reset(pin);
onewire_select(pin, addr);
onewire_write(pin, DS1820_CONVERT_T);
onewire_write(pin, DS18B20_CONVERT_T);
onewire_power(pin);
vTaskDelay(750 / portTICK_RATE_MS);
onewire_reset(pin);
onewire_select(pin, addr);
onewire_write(pin, DS1820_READ_SCRATCHPAD);
onewire_write(pin, DS18B20_READ_SCRATCHPAD);
uint8_t get[10];
@ -73,13 +74,14 @@ float ds18b20_read_single(uint8_t pin) {
onewire_reset(pin);
onewire_skip_rom(pin);
onewire_write(pin, DS1820_CONVERT_T);
onewire_write(pin, DS18B20_CONVERT_T);
onewire_power(pin);
vTaskDelay(750 / portTICK_RATE_MS);
onewire_reset(pin);
onewire_skip_rom(pin);
onewire_write(pin, DS1820_READ_SCRATCHPAD);
onewire_write(pin, DS18B20_READ_SCRATCHPAD);
uint8_t get[10];