|
|
本帖最后由 liangws 于 2017-4-11 17:00 编辑
. X2 g3 v) B. H1 x0 y* {' B
4 K5 }: W5 M6 y% m$ n问题描述:# H1 D/ L: ^ ? h
在syslink模式下开发upp,在138端参考tl-upp_saver程序通过channel b发送数据到FPGA端,FPGA接收数据到FIFO,然后从FIFO端发送給138的upp channel A。fpga端程序通过仿真没有发现什么问题,具体方针波形如下:
: b1 a' J, A* H) f
0 M7 n3 e1 U: S- P# M U图中的UPP_CH0*对应于138的Channel b通道,UPP_CH1*对应于138的channela通道。
5 O2 j& S+ i; z
9 D4 \: _) k5 F# D- w测试结果如下:
3 ?: o' A1 U. T4 F% [1 h% x" F9 ~138端发送512字节,要连续发送8次,即8*512字节,接收端才能收满一个512字节数据,这个可能是什么问题引起的? Z4 [" V9 X" A0 a
( P( p8 t" G1 A* F$ n& M; A' P0 H* v- t; |
备注:6 A0 E$ ?+ E0 `, J' l# }& }: J- p& X
1、看了upp相关文档,绑定的窗口地址WindowAddress要8字节对齐,tl-upp_saver例程中只有发送端upp_buffer_b有8字节对齐,接收端没有8字节对齐,这个是否有问题?我上述问题是否由于这个引起?9 \: F6 h5 F% G1 h* H& L
2、相关代码如下:
. S% a7 o' n) B, r9 U//UPP DMA缓冲大小512字节
' J$ B [" s- u( x& p: p _" Y#define UPP_DMA_BYTE_COUNT (64) //DMA行字节数,每行64个字节,行的字节必须是64的整数倍
8 D/ v7 s3 Z( Z0 m w1 r) f9 C* j#define UPP_DMA_LINE_COUNT 8 //DMA行数, DMA行数 = DMA缓冲区大小/UPP_DMA_BYTE_COUNT
& l- a1 y$ Z1 @#define UPP_DMA_BUFFER_SIZE (UPP_DMA_BYTE_COUNT * UPP_DMA_LINE_COUNT)" U( ^( Z1 W3 I$ U/ w% E
/ f! `! r1 A: H) W
8 e% m' e" K( r- c
//upp接收、发送buffer
* X p9 V. x3 o" |' m1 l4 {6 _#pragma DATA_ALIGN(upp_buffer_a, 8)
9 E$ @5 N( W" \: G#pragma DATA_ALIGN(upp_buffer_b, 8) B9 O+ x, `, {
5 p7 O. j2 i, Z4 K2 R* D; bunsigned char upp_buffer_a[UPP_DMA_BUFFER_SIZE];; Z% y2 F/ y; h, n( @
unsigned char upp_buffer_b[UPP_DMA_BUFFER_SIZE]; ~0 \9 ~2 v' X L5 j
6 o7 |2 l% Y# G- L! n% C4 n" h7 w0 i) U( }+ }
static bool server_upp_data_recv(Server *server)
/ y/ J$ h U) [$ L& e, O8 p{
2 H$ I Q6 ]6 ~) S5 e if(server->upp_channel_a_recv == false) {
/ O4 C% H- U% o6 b- y server_msg_send(server, APP_CMD_LOG, "upp recv: start");
) w; O" g" {2 X/ K% y- ] if(ListMP_empty(server->upp_recv_list_free) == FALSE) {
, T$ Y; q1 y. M9 }9 S server_msg_send(server, APP_CMD_LOG, "upp recv: get node success");
' d+ z' a/ g& C2 ?( r% U7 d/ b4 ]* p% a/ d5 z; \3 @' h! _9 F i/ }
9 n& f( I8 O6 p% I$ o3 j memset(upp_buffer_a, 0, UPP_DMA_BUFFER_SIZE);
) H2 x. A* L% G/ P+ I* g
- M2 p' \5 j2 B server->upp_channel_a_recv = true;//" A& j4 j: o: @: G9 `6 r
server->transposeParA.WindowAddress = ((unsigned int *)upp_buffer_a);
, j7 Y: k2 N, s3 T; O, u server->transposeParA.LineCount = UPP_DMA_LINE_COUNT;
/ U! w5 r; w$ U3 R1 F server->transposeParA.ByteCount = UPP_DMA_BYTE_COUNT;
0 M$ Q7 k9 h: y8 T; F server->transposeParA.LineOffsetAddress = UPP_DMA_BYTE_COUNT;//
% F! l* M& K' }3 z4 N' ~9 I
: x. q8 S$ W; {" @ i upp_error_count = 0;0 t! q# J9 o* U) ]5 _
upp_dmai_int_cut = 0;; N! d; y" U8 H2 e5 m
$ J8 m+ p }/ @# W' n5 \6 I2 c- T // fill in data
/ g. Z/ i" e N; {' R; Y8 r! h uPPDMATransfer(SOC_UPP_0_REGS, uPP_DMA_CHI, &server->transposeParA);: ~: Z: c$ n. c$ S# }4 R0 S8 [% q
server_msg_send(server, APP_CMD_LOG, "upp recv: binding node to dma chi");
) e! u1 f/ f J+ P) ] }
& F; n& j6 O h }
/ v# R/ r0 A/ w, ?; } else{4 d; V9 r4 R8 J7 i& E
if (upp_dmai_int_cut > 0){* F4 t- b: @% |" |4 ^5 f$ S! D
DataNode *node = (DataNode *)ListMP_getTail(server->upp_recv_list_free);
) [7 y1 e- s) ?9 V- ? Uint8 *data = (Uint8 *)SharedRegion_getPtr(node->SR_buffer);2 ?) u" [6 b0 z+ U
* O) K5 d% a0 e3 a; i- f+ o+ N: U
8 ?' a& J, c' f: W) y //copy data to upp_recv_list_busy
9 g' U& k& g5 i8 X, C memcpy(data, upp_buffer_a, UPP_DMA_BUFFER_SIZE);) C R- Q; W9 K. \4 J/ J! B3 m
3 s# g* Q6 E* U& n6 K6 { //
+ K( B _* Y3 i. | ListMP_putHead(server->upp_recv_list_busy, (ListMP_Elem *)node);
6 ^& r, `4 [ N* ?: v( x K; w+ @9 Q. F" a
//
# Z; E3 U9 ^* U5 B& s4 M1 ?' e( q server->upp_channel_a_recv = false;//3 U4 o* R% J" N7 u; S4 w/ j5 w1 L
4 } b1 w0 m$ L5 Q6 _ server_msg_send(server, APP_CMD_LOG, "upp recv: success");
, O2 q. e) u9 ^9 q5 I }2 E3 |' U2 [' f$ l9 | t
}6 n8 L L2 Z" y
3 p/ h8 ^9 s/ D9 M3 V. y* V; d7 `7 U, k0 Q* w
return true;
" X6 n" o, e; @}
! J3 v2 v& G+ r2 @4 J$ O% R( i& l& `+ H" b
static bool server_upp_data_send(Server *server)$ t9 Y# c2 ?/ t+ }
{1 `' K, n% B8 v/ s' O4 n
if(ListMP_empty(server->upp_send_list_busy) == FALSE){
0 {/ q" a# J8 H) T, e DataNode *node = (DataNode *)ListMP_getTail(server->upp_send_list_busy);
( h7 e4 J+ S% E# Z" H+ I unsigned char *data = (unsigned char *)SharedRegion_getPtr(node->SR_buffer);
$ l: _9 A) N) C' T. x- i# ~4 d# F2 g char tmp[128] ={0};! t! I; Y8 K- H; W
6 m! W5 J4 Y% I server_msg_send(server, APP_CMD_LOG, "upp send: start");; A% e; ^ n4 k8 h' d. O/ W# w8 s. D
print_log(server, data, 64);
4 T6 v: |* t( Z* |5 m
$ ]$ p2 Y0 r3 D: v5 W/ q D: X+ n+ J //
- F! e8 C& T7 x# W4 k6 s# L memset(upp_buffer_b, 0, UPP_DMA_BUFFER_SIZE);
3 \ X* ?1 m" j0 S' f memcpy(upp_buffer_b, data, UPP_DMA_BUFFER_SIZE);/ v! K& \! W" B
print_log(server, upp_buffer_b, 64);; _5 X! m W6 k4 U6 q7 [
9 a& _! b8 y# ^7 @0 b' q server->transposeParB.WindowAddress = ((unsigned int *)upp_buffer_b);
3 v3 s- j$ M" u server->transposeParB.LineCount = UPP_DMA_LINE_COUNT; ! K- J+ ~+ C2 C* C( o& ^' i' |" j9 i
server->transposeParB.ByteCount = UPP_DMA_BYTE_COUNT;1 L& Y+ s3 @0 p- y$ l8 x
server->transposeParB.LineOffsetAddress = UPP_DMA_BYTE_COUNT;
/ _6 T l: P+ E9 _% q. d
+ D, f( P! n. c memset(tmp, 0, sizeof(tmp));$ F F) p1 ^. w8 z
sprintf(tmp, "upp send data: sizeof(unsigned int):%d, upp_buffer_b:%p, WindowAddress:%ud",
" I$ Y4 Z# G5 `; q1 i4 e sizeof(unsigned int), upp_buffer_b, server->transposeParB.WindowAddress);. u6 |! M v) v# e; K( _ c
server_msg_send(server, APP_CMD_LOG, tmp);# L8 s8 l! q4 E w% f
0 Q# V! u6 P5 Q l upp_error_count = 0;
8 v% }! O- H4 P: ` upp_dmaq_int_cut = 0;
: j/ v4 l0 U, p1 [# L# h" ? // fill in data 6 |0 Z" L+ F/ y# X B* z) }6 b6 J
uPPDMATransfer(SOC_UPP_0_REGS, uPP_DMA_CHQ, &server->transposeParB);
( z! h; f; l+ \8 F server_msg_send(server, APP_CMD_LOG, "upp send: binding node to dma chq");
, o4 i6 U8 L/ t# p0 x U" ^) D1 U9 A8 n8 y4 Q: N, e! E! e
// wait send success
3 B# n, @/ q5 k+ \ N$ I: y while (upp_dmaq_int_cut < 1 && upp_error_count == 0); 4 h. F! \: O7 q6 W) n1 H
# o+ ^4 C- \/ x" m: v% G! E // make data node in free list " y5 |- W" L4 J8 R5 j$ p
ListMP_putHead(server->upp_send_list_free, (ListMP_Elem *)node);4 M* C4 [ T8 Z6 I q
server_msg_send(server, APP_CMD_LOG, "upp send: success");
( m" Z9 u0 L7 e; N3 ?. `0 ^) ~# k" u } u9 v- @" n: {4 D
return true;. N9 E6 L' C! \: C
}
* t/ t6 W) g; F. S+ q- ~8 }
8 r4 |! c9 J# n7 I5 k) W- b; K1 X ^, e6 O) X
" C! E+ C& l7 \# I
8 g% x% G. Q4 H0 v6 t4 \
! E% L7 J- T; z. N# C. ~+ ]4 I3 m$ q7 T
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有帐号?立即注册
x
|