: }3 R. k5 c+ r- O UARTPuts("\tResetting uPP buffers...\r\n",-2);8 c1 m. D+ T% p& ?; y
// Initialize data buffers 6 x8 g V; M3 j' v) b+ p/ J7 ` for (i = 0; i < upp_frame_size; i++) 2 p x8 z* }, `; e1 u6 U, q- V { % d% s6 u/ s' W+ e upp_buffer_b =i;& X; {) k8 P) S! T" _9 K' G
upp_buffer_a = 0xDEAD;6 p) a# b3 u$ d% ]! l
}: ~* E+ \ ]1 W, G! N% W
# _8 N) | P; i% P" u7 T8 \ //for(i=0;i<1024;i++). p. U6 |5 M8 _# u4 @# X' V. c4 o
// temp=0; / q8 b3 w" G) I4 k2 i 9 o o. z: P- G7 x( k //UPPReset();* p/ M/ M2 a* u# n6 [
/*启动UPP DMA传输*/2 o8 C! f2 }! z* I
UARTPuts("upp_prog_dma_i\n",-2); 2 B0 v' O9 ^6 d5 P- j; D upp_reg_hdl->UPID0 = (Uint32)upp_buffer_a;0 W& t: B6 ~; j1 [7 @8 H
upp_reg_hdl->UPID1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16);* n* P8 B1 @+ y1 W
upp_reg_hdl->UPID2 = (Uint32)upp_line_offset*sizeof(Int16);1 \ p% ?9 E( H q, \: b' B7 P' V+ x
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UARTPuts("upp_prog_dma_i\n",-2); ; M, V' q0 J& x* n- L: M upp_reg_hdl->UPQD0 = (Uint32)upp_buffer_b; ) J9 D4 v5 p% F" B# Q( `6 q$ [ upp_reg_hdl->UPQD1 = ((Uint32)upp_line_count << 16) | (Uint32)upp_line_size*sizeof(Int16);/ G' Q: z4 G- x7 @% m
upp_reg_hdl->UPQD2 = (Uint32)upp_line_offset*sizeof(Int16);# s" Y* q0 v/ q0 `( Z
$ I, `- ^. W! X% s' Y# P /*等待UPP传输完毕*/7 a [; \6 ^; } [' H4 v- p) V
//i=0;" V2 w$ f6 e# ?: Z0 m$ p/ q# ?1 s
//j=0;" [6 r9 ]- d) N
while (upp_interrupt_count < target_int_count && upp_error_count == 0)1 O; N* M7 a3 S/ @2 o0 K7 U
{ / D. R) w$ h( x0 Z5 R! ~. K3 z2 }6 d" D /* 测试UPP传输的同时操作普通DDR数据 , @- M1 R$ f# o7 W6 S$ g temp=i; . |( Q3 [* ^ H1 H- a. @: ~ i++;) R, z5 H \# ?7 ~) u- R) T
if(i==1024)3 i1 t3 f2 J$ r2 z) y! \7 E
{5 t0 P* K+ O2 Q' w, ~! H% b4 }
i=0; 5 J% o; i1 ?2 f1 T t) F! \8 j j++; 6 O# k4 \. I" G2 P! a6 \ V }) q# x s+ o# q: R0 O) A, L
*/ 9 s* ?- Y1 @8 f/ v( i! r ! Z& z4 Y5 S# W/ v; A4 W asm(" nop");+ O* e% m4 ]- w
4 _ b$ d) U0 ~
//UARTprintf( "upp_interrupt_count=%d\n",upp_interrupt_count); 1 P" Z7 j' B* B+ ] } ' g2 _* u' d) V4 j" c6 \' r 7 v Z8 l3 c6 r* p2 J /*检查UPP传输的数据是否正确 (loopback modes only)*/ 2 x) h) ^# W* A7 d& B //UARTprintf( "i=%d\n",i); ) R, G; S7 z2 s) _. R //UARTprintf( "j=%d\n",j);, R0 ?7 P6 r; [& n0 {6 H
UARTPuts("Data mismatch in buffers.\n",-2); # E# C) h7 w1 }; H- Q, l9 }- I7 K if (upp_interrupt_count == 2 && upp_error_count == 0)1 ], S+ _1 e: q- a, ] K0 n- Z$ Y
{ 8 m2 D; o! e+ u' y; n( x3 Q6 a1 G for (i = 0; i<upp_frame_size; i++) ; H ]! q" D' t) I5 T: H5 ^ {" a, z3 G% }& L8 M ]) t
if (upp_buffer_a != upp_buffer_b) 5 T9 R7 l7 } a$ Q$ {# M { ) o' R/ h6 u/ A% C) j upp_error_count++; : \0 A0 N% L, S6 o' W }* S( y) y( b! f* L' M2 e/ i
} & U; c/ k, `$ \# C* l } 5 R' {6 w2 o) C C ' q: w( |2 @; |. [; ` /* 报告通信结果*/ v W8 c! W8 y: S* o; j6 J6 O
if(upp_error_count != 0)8 I$ q( s1 W" R7 R5 `/ l0 F7 {
UARTprintf( "upp_error_count=%d\n",upp_error_count); 4 W8 Q* v7 G8 K4 t9 d/ | else / e& y% H3 U. A1 Z9 Z, E UARTPuts("uPP transfers complete!\n",-2);/ {; D) _8 r& g3 o& r
1 U( y8 G4 M4 p. B( k" k2 k+ @
UARTPuts("Do you want to print all the data?(y/n) ",-2);; E+ X M$ z5 l8 Q2 b
UARTGets(ch,2);1 S: _% }0 z6 P1 [; {7 y+ @' B
UARTPuts("\n", -2);# W5 t3 @; r; V3 k7 e8 Q
" s, u0 Q$ |" `) E7 X
if(ch[0] == 'y')' b0 M f( S0 c! b
{( Q0 y% {0 ]" r- k( m
/*打印全部读到的数据*/ * [4 J' q8 U# v for(i=0; i<upp_frame_size; )" k; M/ M6 ^2 I! A; x
{; R' _5 X4 ~' e# D' X7 C
for(j=0; j<5; j++) 9 p: o- l$ [; ]$ B6 D, C { 8 c1 M2 s' k2 w3 s% ?# x UARTprintf("upp_buffer_a[%d]=%d ",i,upp_buffer_a);7 J1 E& k$ I& m3 I
i++; 6 Y; r$ O1 T. i. d7 |, a) i3 e' @ //if(i >= 4096)7 ~8 d) _" v1 @; X2 }, c
// break; 5 V$ u2 h3 v1 S( P$ U5 i) Y+ ?0 w* L
} / \( z# [9 t: V2 \, c UARTPuts("\n",-2); % L' W9 u5 ?6 ? }, Q0 a" I4 P! m' u8 B: v, M
} % m# q* P) v& n' s7 ?; L7 t + v( i9 F) K9 d' @ S0 R}6 I! b2 a x: P5 d- s# U/ Z0 q" M" F 8 j" ]! B. i" f: ^7 B
3 ]# n9 |8 P# U' r+ G. ]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。2 N: d3 l/ l5 f, i4 W: N 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。 : h, ]" q% }+ D