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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?! y4 r0 m/ C' k5 w( N
Void UPP_TASK(Void)
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int i,j,k,target_int_count=2;% P3 L+ o, ]$ g3 C4 h a
char ch[2];
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upp_interrupt_count = 0;& |% _6 G" w8 M1 Z
upp_error_count = 0;. |# ~' q/ G* N8 q6 y- M. s/ S
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UARTPuts("\tResetting uPP buffers...\r\n",-2);2 Z- V* Y( `) }" t# p5 I% Q' i4 K
// Initialize data buffers
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{
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upp_buffer_a = 0xDEAD;4 r1 m% V l9 K7 \. [6 T- e
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' Z7 ]2 j8 P4 y% q //for(i=0;i<1024;i++)4 {" o5 Z \" E
// temp=0;" {; O6 w3 x- }4 i0 c Z1 ?7 o
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//UPPReset();0 h5 G9 @3 W& D( _
/*启动UPP DMA传输*/4 s" b& Z1 V# T' p" Q' t- g0 b
UARTPuts("upp_prog_dma_i\n",-2);# `. K$ @# N% p0 G
upp_reg_hdl->UPID0 = (Uint32)upp_buffer_a;
Y% u. I2 r; ^( T0 b% o upp_reg_hdl->UPID1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16);% X! d' e2 f" l$ ^# F( P# t
upp_reg_hdl->UPID2 = (Uint32)upp_line_offset*sizeof(Int16);
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~! Q7 W3 u) G4 | B0 I1 L# l0 D UARTPuts("upp_prog_dma_i\n",-2);2 D2 k& l+ A( S8 ~" o) R
upp_reg_hdl->UPQD0 = (Uint32)upp_buffer_b;
( ~; Z6 m9 ^7 |% p! ~3 ^ upp_reg_hdl->UPQD1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16);% \( _% h2 |* w) {" A5 j
upp_reg_hdl->UPQD2 = (Uint32)upp_line_offset*sizeof(Int16);7 U j! Y, U" K7 i# X- R1 n8 Q4 B
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/*等待UPP传输完毕*/
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5 H0 @$ G3 q" D //j=0;' ]% x' b, h, ^
while (upp_interrupt_count < target_int_count && upp_error_count == 0)
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/* 测试UPP传输的同时操作普通DDR数据$ r0 `7 F- ^, l' {
temp=i;9 T2 }0 C& x& H% c } k- z' r
i++;
1 ~8 S8 U; F! h _5 V if(i==1024)
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i=0;
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asm(" nop");4 q4 l* t* ]( Y2 z: S/ D/ Q0 N
. {' R4 v7 r8 x8 w& Z3 g- d3 @ //UARTprintf( "upp_interrupt_count=%d\n",upp_interrupt_count);6 w& o% {/ L1 t. Q
}
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/*检查UPP传输的数据是否正确 (loopback modes only)*/
: l) D" S2 ?) E! h( W //UARTprintf( "i=%d\n",i);0 Z% u9 E" E4 z" G' n: H
//UARTprintf( "j=%d\n",j);' M6 j2 N7 X' h. l2 j
UARTPuts("Data mismatch in buffers.\n",-2);
/ p- e+ T3 K i" F& _ if (upp_interrupt_count == 2 && upp_error_count == 0)0 T" F F8 F- C, V$ v# `$ ]* M
{
/ x* Y$ `+ J3 x, q& g for (i = 0; i<upp_frame_size; i++)
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if (upp_buffer_a != upp_buffer_b)
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upp_error_count++;
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}
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! q$ q- g) \$ ^6 U6 w /* 报告通信结果*/
7 T, M$ g# Q/ y E# ~ t if(upp_error_count != 0)
" z1 f' A- O4 B: a UARTprintf( "upp_error_count=%d\n",upp_error_count);9 R* R; c8 }1 X" Z
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UARTPuts("uPP transfers complete!\n",-2);
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$ E, i0 {5 v5 p% f9 O6 z, ? UARTPuts("Do you want to print all the data?(y/n) ",-2);
! C; E2 Z! ~3 j+ y UARTGets(ch,2);
# F9 _5 z; w8 R$ w/ e3 ~/ |# z' h UARTPuts("\n", -2);
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if(ch[0] == 'y')
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/*打印全部读到的数据*/5 q: @+ D" S- M% {- X) H
for(i=0; i<upp_frame_size; )
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9 C6 b+ ?+ Q; |. J, Q 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)8 V1 B+ @8 W- f2 Y& r0 i
// break;
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}
" [7 ], s4 `2 G UARTPuts("\n",-2);
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}
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