ST25RU3993-EVAL - access memory bank of temperature sensor

Lakshmikanth · ‎2021-12-23

Unable to access memory bank of the temperature sensor to get the temperature data.

Hi,

I am working on ST25RU3993-EVAL board for reading the temperature from RFM3200-AFR temperature sensor.

I am finding very difficult in reading the temperature code from temperature Sensor tag memory.

Can anyone help me on how can i access a particular memory location using the SDK source code provided by the ST.

Thanks in advance..

Lakshmikanth · ‎2022-02-04

Hello Nick,

As you told, I tried to read the Tag using the C demo code in the SDK package.

I was not able to read the tag data.

It says the Tag cannot be read. I tried with 2 temperature tags RFM3200 and 2 moisture tags RFM2100.

But I couldn't read the data from any tag.

the output which i got is pasted below.

*******************************************OUTPUT******************************************

Choose an action below:

v: Version from HOST side

T: Toggle tuning mechanism

t: Tune frequencies

g: Gen2Inventory from HOST side

i: InventoryRunner from HOST side (1000 rounds)

I: InventoryRunner from HOST side (infinite loop)

r: Read/Write tag from HOST side

G: Gen2 Generic Command from HOST side

q: quit

r

Reading/Writing data on tag

Tuning Profile frequencies: algo: STUHFL_D_TUNING_ALGO_SLOW

--- Gen2_Inventory Option ---

rssiMode : 6

reportMode : 0

--- Round Info ---

tuningStatus: TUNED

roundCnt : 1

sensitivity : 3

Q : 1

adc : 0

frequency : 866900

tagCnt : 1

empty Slots : 14

collisions : 0

preampleErr : 0

crcErr : 0

--- 001 ---

agc : 15

rssiLogI : 12

rssiLogQ : 14

rssiLinI : 38

rssiLinQ : 127

pc : 30 00

epcLen : 12

epc : 00 00 00 00 00 00 00 00 00 00 83 50

tidLen : 0

tid :

--- Selecting TAG ---

00 00 00 00 00 00 00 00 00 00 83 50

Tag cannot be read

--- Write 1st word TAG data ---

=> 0xa55a

Tag cannot be read

--- Write 1st word TAG data ---

=> 0xcccc

Tag cannot be read

Task finished .. press a key to continue

************************************************************************************

Nick K · ‎2022-02-04

Hello,

The demo application are generated and tested with VS2017. To open the demo launch ".Applications\STUHFL_demo\STUHFL_demo.sln". This solution has 2 project. The executable demo project STUHFL_demo itself and the STUHFL DLL project. To build use in VS the menu "Build - Rebuild Solution". This first build the stuhfl.lib and dll and then the STUHFL_demo. The STUHFL_demo project reference to the stuhfl.lib file in its linker settings and build only correct when a stuhfl.lib is already generated.

Can you confirm that you are able to read USER memory from the TAGs that are part of the eval kit ?

Are you able to select one of these two TAGs from the kit and read only this, to check that Gen2_Select works for your setup ?

Lakshmikanth · ‎2022-02-24

Can someone help me in reading the tag data

Ulysses HERNIOSUS · ‎2022-02-28

Hi Lakshmikanth,

Nick K. has posted below some things for you to investigate if the overall reading using selects works. I fear without trials from your side and sharing the outcome we will not be able to help you as we don't have experience with this tag.

BR, Ulysses