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最近在做利用STM32f103rct6的SPI3接收NRF24l01的问题，SPI的大体配置是遵照SPI1和SP2的，但是SPI1和SP2在写NRf24L01的地址时都是正常的，但是SPI3写地址就不行了，配置地址为5位失效。单个读写寄存器时有效的，通道设置都是可以的。但是唯独地址的修改不行。以下是配置代码。请搞过SPI3通信的帮忙看一下，找找问题。
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static void Initial_SPI(SPI_TypeDef* SPIx) //??????IOB????<br />
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GPIO_InitTypeDef GPIO_InitStruct;<br />; A: }1 G- y, o' n# L8 B; b/ D
SPI_InitTypeDef SPI_InitStruct;<br />
0 {$ X9 \ ~$ p( Z, i, WIF(SPIx==SPI1)<br />
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9 w8 P0 j6 p$ h. c @, S& c RCC_APB2PeriphclockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO,ENABLE);<br /># g i& ^1 r0 G# q
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1,ENABLE);
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GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;<br /># m) X/ y9 j* n7 O+ S: m2 D
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;<br />+ N/ x$ ~5 W- D8 p7 G- u% c* \7 E! }. ?
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;<br />" X) z4 c: `8 G
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5 ~) `4 r4 B% ^5 M0 y- q; e GPIO_Init(GPIOA, &GPIO_InitStruct);<br />2 n) ~6 b1 R# u1 H& U
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else if(SPIx==SPI2)<br />, J& f& p. N. {& N
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO,ENABLE);<br />8 Q2 r. ^* f& ~/ u0 E
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2,ENABLE);7 b, z! v$ \( m/ r8 j0 A) \
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GPIO_InitStruct.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;<br />+ r7 T+ o, N1 f
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;<br />
s: | t* _# m4 O GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;<br />
8 D! H) J, v Z3 v5 b4 @; W% r <br />
+ @1 S0 \- F/ G3 O7 U8 I GPIO_Init(GPIOB, &GPIO_InitStruct);<br />
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else if(SPIx==SPI3)<br />$ K; L$ |9 P" z5 L w- S) V
{<br />
( M7 R! n" H* Q RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO,ENABLE);<br />, H) f+ L, I( v/ v+ y t# ^! m
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3,ENABLE);5 L. X! V3 u6 i o& M3 T; a3 A
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GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);<br />
8 R; I' I9 W( ~. O6 b- r //GPIO_PinRemapConfig(GPIO_Remap_SPI3, ENABLE);<br />
) Z0 A( g, b: {. A: z! l: o( g RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI3,ENABLE);# t6 G" x `: }" P+ @
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GPIO_InitStruct.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;<br />
" x3 C9 l: R6 w3 B; w GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF_PP;<br />
0 y# G; b6 v2 `! ?6 |. T3 y- \ GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;<br />% Q4 k- k3 C1 r( P4 C
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GPIO_Init(GPIOB, &GPIO_InitStruct);<br />
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SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8;<br />( k/ C- l8 |% z3 N/ q3 S
SPI_InitStruct.SPI_Direction= SPI_Direction_2Lines_FullDuplex;<br />
: q/ `5 V0 N' o1 F5 T SPI_InitStruct.SPI_Mode = SPI_Mode_Master;<br />
* s6 z4 d2 z6 x3 m6 r SPI_InitStruct.SPI_DataSize = SPI_DataSize_8b;<br />6 n6 L- @: p1 L& ~1 C% I# u
SPI_InitStruct.SPI_CPOL = SPI_CPOL_Low;<br />
t/ m2 L% L! c l6 D5 Z2 R SPI_InitStruct.SPI_CPHA = SPI_CPHA_1Edge;<br />. q. N9 V6 |& w2 O& m5 x% _8 c
SPI_InitStruct.SPI_NSS = SPI_NSS_Soft;<br />4 w! V9 ]& _0 `9 H K! Y- r
SPI_InitStruct.SPI_FirstBit = SPI_FirstBit_MSB;<br />, x$ K: ~7 }, K1 E6 Y
SPI_InitStruct.SPI_CRCPolynomial = 7;<br />
; G& q6 a4 h5 }" R SPI_Init(SPIx, &SPI_InitStruct);
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SPI_Cmd(SPIx, ENABLE);<br />/ ~+ | |3 Q# v; T! B
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static void SPI_Send_byte(SPI_TypeDef* SPIx,u8 data)<br />( z4 i9 h) |1 ]0 D* K
{<br />& v0 k* @( p6 ~* c' W4 V
while(SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_TXE)==RESET);<br /> @- |1 x' w0 K( B9 j
SPI_I2S_SendData(SPIx,data);" U; P* n6 |* @9 c! X" b
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8 E3 {7 ~- q5 e4 m6 L while(SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_RXNE)==RESET);<br />
! D0 N$ p }$ R5 g' i- k/ J SPI_I2S_ReceiveData(SPIx);<br /># M% `9 F9 l# y: @$ x/ e) t% e
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static u8 SPI_Receive_byte(SPI_TypeDef* SPIx,u8 data)<br />/ H' d- B' g6 H9 d5 b5 M( Q! p
{<br />* V% P( Y3 R2 }
while(SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_TXE)==RESET);<br />
! Y7 H: I/ a/ ^- ~+ h SPI_I2S_SendData(SPIx,data);
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3 P4 A! ^3 ?5 w+ A while(SPI_I2S_GetFlagStatus(SPIx, SPI_I2S_FLAG_RXNE)==RESET);<br />
4 s. r2 K# T }0 k. R. l, r return SPI_I2S_ReceiveData(SPIx);<br />
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static void delay1us(u8 t)<br />
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# ]! ]" J* i- _' B5 b while(--t);<br />1 Z2 y* p7 t: {- d2 l& B
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, N, N: h' p& t1 U /****************????bytes×?????????*******************/<br />$ U/ S$ q, [! h$ A! p6 g
u8 SPI_Write_Buf_2(u8 reg,u8 *pBuf,u8 bytes)<br />' Y/ k/ p/ M6 B& g9 A" z
{<br />
7 v5 A! `4 t0 q+ [& G9 U# t u8 status,byte_ctr;<br />% C6 o3 `& J& x- [
CSN(0);<br />! L* A+ I3 n7 V: G4 Q. L" o$ K* I
status=SPI_Receive_byte(SPI3,reg); <br />0 X5 o0 V* u; d) V4 C
delay1us(1);<br />
8 J! D% p& l' Y" k; h for(byte_ctr=0;byte_ctr<bytes;byte_ctr++)<br />
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SPI_Send_byte(SPI3,*pBuf++);<br />
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CSN(1);<br />
$ Z7 @- Y* r4 | return(status);<br />
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; f- X4 l1 s/ V1 {6 u void RX_Mode_2(void)<br />
' P7 n8 a1 J/ {3 y6 R5 E0 L {<br />
' ?# E6 c2 f8 q8 _7 b; @6 \ CE(0);<br />
* z2 Q5 e: |% X4 A SPI_Write_Buf_2(WRITE_REG_NRF24L01 + RX_ADDR_P0, TX_ADDRESS,TX_PLOAD_WIDTH); <br />
9 x; K# f+ j1 Z5 H7 ] //SPI_Write_Buf_2_1(WRITE_REG_NRF24L01 + RX_ADDR_P0, TX_ADDRESS,1) ;<br />
/ u- ^/ ~2 J# f# l1 W( [ SPI_RW_Reg_2(WRITE_REG_NRF24L01 + RX_PW_P0, TX_PLOAD_WIDTH); <br />
1 p9 Y3 S8 O% Z' ^+ }9 t // SPI_RW_Reg_2(WRITE_REG_NRF24L01 + RX_ADDR_P0, 0x20); <br />
+ }% G4 g/ h* N# A$ v, t) V SPI_RW_Reg_2(WRITE_REG_NRF24L01 + EN_AA, 0x00); // ?????????¨??0×???????<br />0 }* g) {- v0 b4 C" {9 ]& _
SPI_RW_Reg_2(WRITE_REG_NRF24L01 + EN_RXADDR, 0x3f); // ?????????¨??0<br />
" ]+ Z' H' \/ [+ h6 K! m6 O7 g SPI_RW_Reg_2(WRITE_REG_NRF24L01 + RF_CH, 40); // ?????????¨??0x408 V1 t* h+ ~. W# D$ r' Q
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SPI_RW_Reg_2(WRITE_REG_NRF24L01 + RF_SETUP, 0x0f); <br />" D4 A, O" P, D4 Q" \" P/ }$ C3 s/ L
SPI_RW_Reg_2(WRITE_REG_NRF24L01 + CONFIG, 0x0f); // CRC??????16??CRC???é????????????????<br />) M2 N% K( ?/ B: \7 f. ]5 p+ l
CE(1);<br />
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发表于 2022-1-20 14:51
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