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


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?