基于HAL库，MX25L12835FZ2I-10G SPI FLASH这个芯片擦除，Chip Erase

xhzheng · 2016-11-15T01:56:08+00:00

// Erase Chip to 0xFF；% |1 a9 O! U7 v' }- B/ X Send Data:0xC7 + _. U& ^6 m: I) p' U; T*/ 4 H, f+ V* H: O# I2 P; Evoid MX25L_Flash_ChipErase(void) c; E0 r6 y, z9 \8 Q; O{ : U; [) h2 y) t, b7 | MX25L_Flash_WriteEnable();) H) |/ v. R2 O6 u. R MX25L_Flash_WaitIdle();9 {1 Z6 D! m0 z, m6 l 4 E" W$ y! o: O, v C8 h) d uint8_t data=MX25L_ChipErase; 1 p; O( f- y3 l) q HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_RESET);7 k5 A5 ^6 P* O* G HAL_SPI_Transmit(&hspi6,&data,sizeof(data),1000);* e* z3 [* T- Y# Z5 O3 |! c HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_SET);8 G* m9 G2 b- {' C7 L1 o$ e . i, K b; c3 H! j( d0 a2 z+ K MX25L_Flash_WaitIdle();. j6 ~) b; P2 d0 |, k } + `# [+ a3 t" h: B' {5 M + v9 o8 ] f9 X& Z/*Write Enable--OK! n! q8 E2 q3 {* C Send Data:0x06 , e' M% H! X: ]: F) y. h*/ S2 [& d) k/ \/ v' I. t" }7 G void MX25L_Flash_WriteEnable(void)# Z4 S0 x5 |2 {8 p5 z) H9 ] {) n/ e6 T9 B, u. y# R6 R2 P4 Q$ S uint8_t data=MX25L_WriteEnable; ; o8 @9 t2 l2 l" O h" h HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_RESET); 8 J9 h2 d3 X0 D0 o HAL_SPI_Transmit(&hspi6,&data,sizeof(data),1000); # \6 W. @8 m/ V: R; ~* Q! \) ~1 z HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_SET); ( w3 B+ y! t4 d/ n}5 b: x9 O/ g* R# |/ z) V 9 k+ g' A0 I4 |- \9 cvoid MX25L_Flash_WaitIdle(void)3 a; o2 ~- h1 P& c% N { % A; g6 F0 w* u5 c3 u+ v: s while((MX25L_Flash_ReadStatusRegister()&0x01)==0x01); , A. o+ L. u3 r4 F} 5 Q- t. r( [/ r0 l. N. t 6 v9 W7 X, W) i' C5 R$ y/*Read Status Register；" `; A3 i6 O* ~: ]0 w bit 7:SRWD, Status Register write protect . q# ?$ S2 m9 _bit 6E, Quad Enable; default 0; 1 QI/O Mode and 0 non-QI/O mode # R& X* s% }0 w! x+ v+ Ebit 5:BP3, Level of protected block: d6 p( P# g2 _/ W. F4 a bit 4:BP2, Level of protected block 5 H& i9 }# N$ ]* Q& G1 x4 N, D) vbit 3:BP1, Level of protected block8 j: q( i1 o- J* m3 Y2 o7 F+ X bit 2:BP0, Level of protected block ) y) ^( l3 L2 ?5 a2 G1 Bbit 1:WEL, Write enable latch; 1 enable and 0 disable 0 d" \5 x& u7 y2 r5 F8 V" W- Jbit 0:WIP, Write in progress bit; 1 busy and 0 idle 8 Q* ?% j* j# `6 e4 }" h/ t$ `0 }0 L9 Q4 L Send Data:0x055 [5 i: C4 }% k4 D2 g$ c I Return: bit0* B7 B) b0 P9 m */ ; j. I; C4 K+ p9 R- _uint8_t MX25L_Flash_ReadStatusRegister(void) K9 S! J! O. ~6 c" l; ~ { 1 T$ x" w4 k) ^ uint8_t Temp[1];, M0 t/ }! C: L. P& E uint8_t data=MX25L_ReadStatusRegister; ; v- Y; |; k, p9 F! s7 N HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_RESET);+ z8 a& g; K/ `7 l. k1 S! N" L HAL_SPI_Transmit(&hspi6,&data,sizeof(data),1000); ) F0 T# A, o; k4 J7 v HAL_SPI_Receive(&hspi6,Temp,sizeof(Temp),1000); 1 E& i g( i( g6 b9 h HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_SET); 8 Z- L. r; F" h% K# Q8 c, D return Temp[0];' Q+ b( ]1 b: Y8 u. o# [( S; X } 9 x! I+ g- z8 W7 }' L( o% _ 1 U' \7 Z: K' V( S& a4 J. h) R& v2 W0 r* z7 y( N/ L

基于HAL库，MX25L12835FZ2I-10G SPI FLASH这个芯片擦除，Chip Erase

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xhzheng 发布时间：2016-11-15 09:56

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// Erase Chip to 0xFF；
Send Data:0xC7
*/
void MX25L_Flash_ChipErase(void)
{
MX25L_Flash_WriteEnable();
MX25L_Flash_WaitIdle();

uint8_t data=MX25L_ChipErase;
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi6,&data,sizeof(data),1000);
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_SET);

MX25L_Flash_WaitIdle();
}

/*Write Enable--OK
Send Data:0x06
*/
void MX25L_Flash_WriteEnable(void)
{
uint8_t data=MX25L_WriteEnable;
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi6,&data,sizeof(data),1000);
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_SET);
}

void MX25L_Flash_WaitIdle(void)
{
while((MX25L_Flash_ReadStatusRegister()&0x01)==0x01);
}

/*Read Status Register；
bit 7:SRWD, Status Register write protect
bit 6

E, Quad Enable; default 0; 1 QI/O Mode and 0 non-QI/O mode
bit 5:BP3, Level of protected block
bit 4:BP2, Level of protected block
bit 3:BP1, Level of protected block
bit 2:BP0, Level of protected block
bit 1:WEL, Write enable latch; 1 enable and 0 disable
bit 0:WIP, Write in progress bit; 1 busy and 0 idle

Send Data:0x05
Return: bit0
*/
uint8_t MX25L_Flash_ReadStatusRegister(void)
{
uint8_t Temp[1];
uint8_t data=MX25L_ReadStatusRegister;
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_RESET);
HAL_SPI_Transmit(&hspi6,&data,sizeof(data),1000);
HAL_SPI_Receive(&hspi6,Temp,sizeof(Temp),1000);
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8,GPIO_PIN_SET);
return Temp[0];
}