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DS.4
Senior
January 1, 2024
Solved

Fail to write I2C tag in DMA mode

Writing 256 bytes ( full mailbox message ) failes when using I2C in DMA mode. 

I think the max is 255, correct me if I am wrong.

Any way I can write it using 2 messages safely? Or am I restricted to non-DMA I2C write only?



This topic has been closed for replies.
TDK
TDKBest answer
January 1, 2024

Duplicate:

https://community.st.com/t5/stm32-mcus-products/i2c-with-dma-last-byte-error-written-to-zero-instead-value/td-p/623976

 

"If you feel a post has answered your question, please click ""Accept as Solution""."

2 replies

TDK
TDKBest answer
January 1, 2024
"If you feel a post has answered your question, please click ""Accept as Solution""."
DS.4
DS.4Author
Senior
January 1, 2024

Yes, 

There was no option to tag both 

ST25 Dynamic NFC Tags – ST25DV Serie 

and 

I2C, DMA 

 

for same question...