AnsweredAssumed Answered

What is the difference between DONE and BSY flag of DMA controller?

Question asked by johntt on Aug 28, 2013
Latest reply on Aug 28, 2013 by johntt

Hi,

I have a question about BSY and DONE flags of DMA controller in KL25Z microcontroller. I've read datasheet but unfortunately I cannot understand completely differences between them. So, I've made a simple project with DAC and when I want to turn off the DAC signal then I check BSY or DONE flag and stop generating requests. On oscilloscope I found that when BSY is checked then all data samples of signal are transferred, but when DONE is checked then not always all signal samples are transferred. Is this correct?

Outcomes