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PPI data transfer between stm32f407 and ADSP592

Question asked by mi.laksh on Apr 7, 2017
Latest reply on Jun 15, 2017 by Jithul_Janardhanan


I need to transfer the data  between the ADSP592  and STM32f407VG processor through PPI protocol. I configured the PPI ports and the DMA at the DSP side and In F407 I am using FSMC  Alternate Function mode.At the DSP side, there should be some problem with changing from transmission mode to receiver mode.I am checking the DMA0_CURR_X_COUNT value is 0,which means the last data gets transmitted or not.After running,its value goes to  001C,which means transmission not gets completed.But at the receiver side I am receiving all the data except final one(i.e.I received 49 out of 50).I attached my code with this.Please help me to sort out this timing issue. Waiting for your valuable suggestions.