I am using the Digital Discovery to read an SPI transmission. The lines are as follows:
1. CS ; 2. Clock; 3MOSI; 4 is MISO.
Please observe the transmission below. In several transmissions, the CS goes high in the middle of a 8 bit clock cycle and thereby signals the end of a communication. As can be seen below a "?h50" was recorded, in response, it seems that the slave-unit sent "?hF0".
Here are my questions.
1. Why is the CS going to high suddenly in the middle of a communication ?
Question
dumbguy
Hello,
I am using the Digital Discovery to read an SPI transmission. The lines are as follows:
1. CS ; 2. Clock; 3MOSI; 4 is MISO.
Please observe the transmission below. In several transmissions, the CS goes high in the middle of a 8 bit clock cycle and thereby signals the end of a communication. As can be seen below a "?h50" was recorded, in response, it seems that the slave-unit sent "?hF0".
Here are my questions.
1. Why is the CS going to high suddenly in the middle of a communication ?
2. What is "?h50" & "hF0".
3. Does this appear to be an error in reading ?
Link to comment
Share on other sites
11 answers to this question
Recommended Posts
Archived
This topic is now archived and is closed to further replies.