; d- B' V* X! q7 a! D / [; ~+ `) u) ]3 q1 C" V) Q5 h( s" t: @) {0 j
upp_interrupt_count = 0;2 U/ ]8 l% l9 j" J
upp_error_count = 0; 8 S, n& D! _1 N0 o$ d& k4 M) \/ H; g" P+ a& j
UARTPuts("\tResetting uPP buffers...\r\n",-2);/ h6 S; k: d9 h
// Initialize data buffers( E$ p" v) T# ^) ]( W- h' H% S+ D( G
for (i = 0; i < upp_frame_size; i++)) n) O4 v) D z/ o
{: K! M [! ^- E' R. ]
upp_buffer_b =i;0 \; z' \3 W: q4 B$ N
upp_buffer_a = 0xDEAD; - T' r$ w: y* k7 h' C- e ?! V } 2 n @6 w) C2 O( n0 \6 C , M8 |9 R/ E% ~& s, L //for(i=0;i<1024;i++)$ e) t! |6 I( N9 E* q
// temp=0; 8 R$ O0 H# b# _( b" g 8 f8 b4 Q9 k1 G( z5 ^3 a //UPPReset();& {9 Q! S3 Y% H ^5 _9 C( q# p
/*启动UPP DMA传输*/ G/ i+ W2 m$ u: O* E$ P, Q UARTPuts("upp_prog_dma_i\n",-2);. W5 J, O6 |% }1 o* r
upp_reg_hdl->UPID0 = (Uint32)upp_buffer_a;8 C& f P$ ~4 m! G2 R( q4 l2 I8 V& y
upp_reg_hdl->UPID1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16); % I- R3 r* t1 ?8 x# u" @# b' L upp_reg_hdl->UPID2 = (Uint32)upp_line_offset*sizeof(Int16);( D8 l ~/ F% p; `9 r. ^
$ g$ a5 z' p/ l+ W+ w( l UARTPuts("upp_prog_dma_i\n",-2);" p( a* l4 J5 i' I: a
upp_reg_hdl->UPQD0 = (Uint32)upp_buffer_b;* m, G. d* ]- p1 Q7 z
upp_reg_hdl->UPQD1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16); + p. S7 O7 f$ H) w' l upp_reg_hdl->UPQD2 = (Uint32)upp_line_offset*sizeof(Int16); - E# R! ^$ j+ Y5 V+ ^! w# H# {1 g% n; ~/ }7 j
/*等待UPP传输完毕*/ # C" E5 B N1 B2 R //i=0; , N r( \6 j7 Q+ @: v" d1 | //j=0;; T0 n: A0 Z! A8 E$ c1 r8 d
while (upp_interrupt_count < target_int_count && upp_error_count == 0) 4 s/ d- x6 E; k8 o {7 f- N+ Z% W2 p; p9 g
/* 测试UPP传输的同时操作普通DDR数据 2 n% `7 x6 G8 B: i+ w# l temp=i; # z( c2 [! s2 g, D& d- Z i++; ( r& m5 D# R5 P+ v if(i==1024). p: _4 K h, N" n
{ , F& l9 g. B5 l- k) P- D( f i=0; ; {. F% m! a0 G+ X j++; ; I5 w1 ~1 W" ^* a }5 e) a0 a* R# I! E) E- E
*/( C. U& v5 z, L3 ?
9 R8 R3 f8 `$ `" X- G4 B5 H, d
asm(" nop"); ( z7 a& t, }6 z" V3 C2 w. j, K2 ]& A- w. o9 `
//UARTprintf( "upp_interrupt_count=%d\n",upp_interrupt_count); * A( r4 Z I" h3 w4 ^3 s0 {. ^ } ( N/ `# o* v- |2 F! }! M( ?( M! ` ; {* b( M) B* V! I /*检查UPP传输的数据是否正确 (loopback modes only)*/ & K* {* J8 k6 A0 b //UARTprintf( "i=%d\n",i); 9 T8 o1 [) O" e% G4 k //UARTprintf( "j=%d\n",j); 5 x' G. r" {' R1 L8 W UARTPuts("Data mismatch in buffers.\n",-2); & r0 E% p3 ~3 [* r7 D if (upp_interrupt_count == 2 && upp_error_count == 0) 1 v L3 E* c! k( V {0 E6 C7 v7 c& L9 R: R
for (i = 0; i<upp_frame_size; i++)7 E' |# R' \: a4 X. Y* F% i
{5 O" [- {8 |* Z/ O& S2 H6 X0 \& N
if (upp_buffer_a != upp_buffer_b)! p+ K3 w6 i5 _0 I7 P, X
{: X8 Z: Z( M+ M, x
upp_error_count++;0 ~1 }: ?( ?& _% u! {
}2 o( p% n7 }* y9 J# c* }- t
}3 P. I# p1 i% A
} B) n( A) g" D# Z7 @" Z) ]0 V# [- M
/* 报告通信结果*/- r! O p9 X6 V0 I7 h; q, y
if(upp_error_count != 0) 6 R0 B8 V: n+ r$ ^8 W UARTprintf( "upp_error_count=%d\n",upp_error_count); " O7 c: x5 D/ p( B else , y0 q; F y- @: O% J5 q UARTPuts("uPP transfers complete!\n",-2);! ?4 F1 p' g# T9 Z) n
1 L ^( A8 \: x4 l UARTPuts("Do you want to print all the data?(y/n) ",-2);7 O8 G4 G& p2 ^
UARTGets(ch,2);9 P$ m: N. l2 r- K& R( v
UARTPuts("\n", -2);3 h$ {% \" F' l+ ?' m& Z* E
& i$ n! ]! k3 R5 q# ] if(ch[0] == 'y') : T1 q3 X+ ?7 Q% H' y+ m1 r3 A { 3 i# k. r- y Q; k9 _& ? /*打印全部读到的数据*/ , g2 |, H" }2 n6 E, f7 z$ U for(i=0; i<upp_frame_size; ) ; U+ A8 W3 v" N7 j) g { % r. ^4 A4 `5 c! e! }1 _8 e$ } for(j=0; j<5; j++) ( ~7 {1 v7 h# ~/ Y- B {/ n- N5 N. S& U8 C2 f1 J
UARTprintf("upp_buffer_a[%d]=%d ",i,upp_buffer_a);: g, t6 Y& J4 J7 a8 f
i++;8 G! I0 ]& N7 |- v3 G7 ~
//if(i >= 4096)1 V% r/ |: v$ W" X. h- @2 Y6 T* g
// break;) y, M5 Q3 X8 c; L8 l- E( @
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}' M) N( o/ D E/ m; c
UARTPuts("\n",-2);* I9 a* H+ T7 ~
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}0 C5 J2 V& Q2 i
( G7 q# q0 C; p
}2 B( E% G& f: q! z+ {2 ^( `
; H; \# p; W I4 ?% i# M/ m; M: d3 g9 o$ f- Q* E- B# b8 Y 作者: tulipyyf 时间: 2014-12-22 16:08
追加说明：任务是空闲任务，因此没有做循环。. Z9 ^3 v. X G! }- j 作者: Lewis 时间: 2014-12-24 18:06
多次执行是没问题的，最好不要用空闲任务，优先级太低。1 `+ g* S3 k5 [. K4 z" ~