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Hello all; I bought C5402 DSK and wrote this code to initialize McBSP1 for AD50 #include <stdio.h> #include <mcbsp54.h> /* global functions */ extern int init_54x(); extern void wait(unsigned int N); void main() { int codec_ctrl_data[4]; int i; /* Initialize DSP */ init_54x(); mcbsp_init(1, 0x0000, // disable rx 0x0000, // disable tx, FREE=1 0x0040, // 1 word/frame, 16-bit/word 0x0000, // 1 rx phase, no compand 0x0040, // 1 word/frame, 16-bit/word 0x0000, // 1 tx phase, no compand 0,0,0,0,0,0,0,0, // all are disabled 0x000c); // external FS and CLK, tx on rising edge,rx on falling wait(200); MCBSP_SUBREG_WRITE(1, SPCR1_SUBADDR, 0x0001); // enable rx MCBSP_SUBREG_WRITE(1, SPCR2_SUBADDR, 0x0201); // enable tx wait(200); codec_ctrl_data[0]=0x0100; codec_ctrl_data[1]=0x0200; codec_ctrl_data[2]=0x0300; codec_ctrl_data[3]=0x0400; for(i=0; i < 4; i++) { SET_REG(DXR11, 0x0001); // primary comm data to request a secondary comm (***) while( !MCBSP_XRDY(1)); // primary data in DXR1x reg, wait for XRDY flag SET_REG(DXR11, codec_ctrl_data[i]); //secondary data while( !MCBSP_XRDY(1)); // secondary data in DXR1x reg, wait for XRDY flag } SET_REG(DXR11, 0x0000); //flush last word tx'd from DXR1 while(1); } but when I run it it hangs at line (***). this means that it can't flush DXR11 register. please help me. Thnaks |
What is wrong in initialization codec in C5402 DSK
Started by ●February 17, 2002
