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];
}