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milesburton / Arduino-Temperature-Control-Library

Arduino Temperature Library
https://www.milesburton.com/w/index.php/Dallas_Temperature_Control_Library
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getAddress return the first address available even if not found the device #229

Open NilsRo opened 2 years ago

NilsRo commented 2 years ago

I prepared 3 sensors but only 1 is connected. A call to getAddress is false but the last address found is written to the variable given.

There should be no explicit address returned if the device is not found.

Reproduction: Call a device number that is not available with at least one device connected.

milesburton/DallasTemperature@^3.11.0

image image

RobTillaart commented 2 years ago

Can you post a minimal sketch that shows the problem?

The image just does not give information about the content of the variables before your call.

e.g initialize the address with all 0xFF before any call.

NilsRo commented 2 years ago

Attached a simple sketch.

Output with one DS18B20 connected:

ets Jun 8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) flash read err, 1000 ets_main.c 371 ets Jun 8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0030,len:1344 load:0x40078000,len:13864 load:0x40080400,len:3608 entry 0x400805f0 289D8F16A8013C7A 289D8F16A8013C7A

Output with no DS18B20 connected:

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0030,len:1344 load:0x40078000,len:13864 load:0x40080400,len:3608 entry 0x400805f0 0000000000000000 0000000000000000

Expected result in first example would be: 289D8F16A8013C7A 0000000000000000

Dalles_Fehler.zip