Hi, For DSK5416, If in the MCBSP configuration, the word length is setup as 32bits/word and frame length setup as 2 words/frame, sigle phase, The interrupt response is setup to response to each XRDY signal. So for each frame, how many interrupts will be evoked? I made a program and found it is about 2 responses for each frame, means every word (here is 32 bits), transfered from CODEC, will invoke only one interrupt. So in each ISR, I can read a 32-bit word by seperately reading 2 16-bit words: MVMD DRR22,*(_MCBSP_RECEIVE_ADDRESS_H) MVMD DRR12,*(_MCBSP_RECEIVE_ADDRESS_L) without causing an extra interrupt within the interval when the first 16-bit word reading is finished. Is my understanding correct? Thanks |
A little bit confusion in Interrupt response to the MCBSP
Started by ●December 23, 2003