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下面的任务,只能在第一次执行UPP时成功,后面的均不成功,请创龙工程师看看为什么?
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R# Y# _" i/ ~1 p U! u int i,j,k,target_int_count=2;' I' r0 n' Z& `2 h/ R
char ch[2];* w7 a- @. g9 o4 r. Z2 X: n, e2 P) P1 c
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2 A$ u* o/ w+ W5 m# C. g3 l j upp_interrupt_count = 0;8 D A1 ]; G% E6 v5 |" N
upp_error_count = 0;0 Z& H) i# J3 E9 e4 q2 O2 B
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UARTPuts("\tResetting uPP buffers...\r\n",-2);* G, m! k, I$ @. ^9 ]2 |" \0 v: O. s
// Initialize data buffers
f7 y6 M: C2 \- h9 T8 H; m for (i = 0; i < upp_frame_size; i++)& B. \: B# F1 }7 C/ }& m9 Q
{
8 d8 U' p/ z% w8 F+ J upp_buffer_b =i;+ K0 f2 X; U9 ^, X* c: _4 F" O9 f
upp_buffer_a = 0xDEAD;% z4 J, J; I5 L& v8 W
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//for(i=0;i<1024;i++)
7 h3 v! m3 f1 m# x5 A7 e3 q // temp=0;: `9 z# N3 E8 \
: T. c1 w+ i& l) H' { //UPPReset();- l$ \3 x1 {! p/ j! P- z7 j9 U; c
/*启动UPP DMA传输*/! w* A8 b8 f# }, j( i
UARTPuts("upp_prog_dma_i\n",-2);
7 i9 M% m$ [' _' t( R0 b, q upp_reg_hdl->UPID0 = (Uint32)upp_buffer_a;7 L# t2 h+ r/ }
upp_reg_hdl->UPID1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16);( @$ C: S8 J1 |+ J
upp_reg_hdl->UPID2 = (Uint32)upp_line_offset*sizeof(Int16);
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UARTPuts("upp_prog_dma_i\n",-2);
/ V$ x$ E5 E" L3 n! f1 o upp_reg_hdl->UPQD0 = (Uint32)upp_buffer_b;
' ~. q7 S4 ]- G) o: ] [$ J2 k! j upp_reg_hdl->UPQD1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16); `) K }3 M( T A2 f
upp_reg_hdl->UPQD2 = (Uint32)upp_line_offset*sizeof(Int16);
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/*等待UPP传输完毕*/
: _6 ^! O$ v1 d$ w. p' a, i1 t //i=0;' u3 m5 M# f! t8 T) v4 r$ O
//j=0;) C$ F6 Q* x& r2 H& y4 \
while (upp_interrupt_count < target_int_count && upp_error_count == 0)7 l( ^) ^$ a0 G
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/* 测试UPP传输的同时操作普通DDR数据
& O7 S, a* E2 k" V c temp=i;
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if(i==1024)
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8 z5 R; z2 o/ h; K* @4 F# H4 V5 k i=0;
4 l) q# x1 ~! B$ v9 }/ ]7 w1 M j++;
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*/
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asm(" nop");
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2 a1 [7 m5 P r //UARTprintf( "upp_interrupt_count=%d\n",upp_interrupt_count);. Y s6 D. E% _: C% a. Z7 b
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/*检查UPP传输的数据是否正确 (loopback modes only)*/
7 j$ W5 O- d6 X8 ? //UARTprintf( "i=%d\n",i);
4 |9 `* A# }. g0 n* W //UARTprintf( "j=%d\n",j);7 b5 M4 [) D( y( ]: m
UARTPuts("Data mismatch in buffers.\n",-2);0 J# f s+ n n( W P
if (upp_interrupt_count == 2 && upp_error_count == 0)6 W0 M9 [2 d0 ?! N
{
. i/ D* m3 e4 m$ f+ n! X for (i = 0; i<upp_frame_size; i++)' T6 R2 y+ R) \
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if (upp_buffer_a != upp_buffer_b)
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upp_error_count++;, \2 z* v" |5 j7 ?; G* U
}
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/* 报告通信结果*/; F( o2 K; N& B4 w1 u0 k
if(upp_error_count != 0)
3 T; `# q* a9 G' \7 ? UARTprintf( "upp_error_count=%d\n",upp_error_count);3 r9 @, ^! P7 J
else
+ U8 p, P; u3 { UARTPuts("uPP transfers complete!\n",-2);( t+ ^9 D' a- {" I, v: p
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UARTPuts("Do you want to print all the data?(y/n) ",-2);$ Z* P! c5 }: b# ~# o5 H
UARTGets(ch,2);! J; [4 h& B6 k& B8 Z) ^8 \' ^+ g r
UARTPuts("\n", -2);
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% k! E9 S; T2 G, x6 c4 |6 R if(ch[0] == 'y')1 u5 I2 t$ a8 G+ q( }. e
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/*打印全部读到的数据*/
* v1 K) H/ ~( j* g4 U& o for(i=0; i<upp_frame_size; ) ]* m- _, @5 m T {
{
. h2 @+ s8 k9 j for(j=0; j<5; j++)
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UARTprintf("upp_buffer_a[%d]=%d ",i,upp_buffer_a);
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//if(i >= 4096)1 R6 j, I3 n4 l5 @9 s
// break;! B1 W# T; P2 F2 `% Z& m( x6 i
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UARTPuts("\n",-2);0 [" j# G' r; l' m. _2 S% r* Q" G. |3 T
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}
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