131 questions
2
votes
1
answer
103
views
how to present uint16 as float16
I have a buffer of float16 elements in the memory
I read this buffer to a list but since I use np.ctypeslib I can't read it as float16
so I read it as uint16 and now I want to represent it as float16
...
- 43
1
vote
1
answer
144
views
Converting float64 array to uint16 (Python)
I'm having trouble in a data type conversion from float64 to uint16. If I have an array of floats and I try to convert it with
array_uint16 = array_float64.astype(np.uint16)
is there a sort of "...
0
votes
0
answers
65
views
Safely converting a non-owning pointer of multiple uint8_t's to uint16_t's [duplicate]
I am getting data from a serial wire, thus the received data is an array of bytes (uint8_t). but these bytes are essentially a lot of two byte words (uint16_t). I am wondering what the best practice ...
user14999310
0
votes
2
answers
346
views
combine two uint8 into one uint16
I have an array in bytes, content is camera frame 480x640 x 2 bytes per pixel
raw = np.asarray (d.GetFrameData ( ), dtype=np.uint8)
print (raw, raw.shape, type(raw))`
print output is below, 614400=...
- 51
0
votes
1
answer
80
views
Casting uint8_t* to int16_t8 in C
I am attempting to adapt an example from here which reads PDM microphone data and prints it to a computer using serial USB.
I want to bypass the filtering stage in the example so I can write my own ...
- 1
2
votes
0
answers
644
views
Getting OPC UA array object values (Byte, UInt16) in python client
I am creating a python OPC UA client based on opcua-asyncio github (https://github.com/FreeOpcUa/opcua-asyncio) to read values in an instrument that has a server already set up.
My problem lies in ...
- 21
0
votes
0
answers
237
views
Can I use OpenCV SIFT for 16bit images?
I am trying to register two 16bit images. One is a .dcm CT series and the other is TIFF image. Both are uint16 type and while running SIFT I get this error:
cv2.error: OpenCV(4.8.0) D:\a\opencv-...
- 1
1
vote
1
answer
93
views
Why is documented Bluetooth Unit8 value being read as a Int16?
What have I tried?
I read through GATT_Specification_Supplement_v10.pdf and previous publicly available versions of the document mentioned.
I looked at stack overflow questions and 3rd party bluetooth ...
- 2,475
2
votes
3
answers
435
views
C - convert a struct in a u16_array, where each uint16_t represents only a byte
I have a pretty nasty case on a texas instruments C2000 microcontroller, that is only available to represent uin16_t and not uint8_t. Now I have a struct like the following, where each uint16_t ...
- 499
2
votes
2
answers
682
views
Modbus home assistant and python struct (little endian, big endian, negative values from uint16)
I have a question regarding to modbus settings. I have read the documentation carefully, tried to search some topics, but unfortunately I did not find an answer to my problem.
I have a heat pump, ...
- 1,038
1
vote
1
answer
188
views
Kotlin Android Studio how to merge two uint8 to one uint16
I am reading data from bluetooth gatt characteristic. First data is one byte and I am successfully reading it by code:
val strValue = characteristic.value[0].toUByte()
characteristic.value[1] ...
- 11
0
votes
1
answer
1k
views
Python : How to convert Bytes like object to Array of uint16?
I have a bytes-like object from a udp stream.
In Matlab I can convert the bytes to a column vector of uint16 by following code:
% Build UDP Connection and collect binary data
udpr = dsp.UDPReceiver('...
- 1
0
votes
1
answer
238
views
what is signed/unsigned integer in Solidity?
I found the following definition about signed/unsigned integers on a Solidity book from Packt:
Understanding integers
Integers help in storing numbers in contracts. Solidity provides the following two ...
- 91
-3
votes
2
answers
87
views
type conversion from int to class behaving weirdly
So. I am trying to convert a uint16_t (16 byte int) to class. To get the class member varaible. But it is not working as expected.
class test{
public:
uint8_t m_pcp : 3; // Defining max size as 3 ...
- 3
0
votes
0
answers
18
views
convert multidimensional nd array from uint16 to int16 [duplicate]
When I read an 16 bit tiff (gray scale image having two dimension) image using scipy, and check its dtype using image.dtype I get uint16 (Uint16 is unassigned 16 bit integer). I want int16 to work ...
- 105