基于新唐NUC123的3.0的BSP包的FM25CL64BG驱动开发
源码如下：
/**************************************************************************//**
* @file fm25640c.c
* @version V3.00
* $Revision: 5 $
* $Date: 16/08/04 11:18a $
* @brief Demonstrate how to perform timer counting in periodic mode.
* @note
* Copyright (C) 2014~2016 PM9GZY Technology Corp. yuanxihua@21cn.com All rights reserved.
******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include <stdio.h>
#include "NUC123.h"
/*
_________________________________________________
| NUC123ZD4AN0 FM25CL64BG |
| |
| PC8 SS10 ----> CS |
| PC9 SPICLK1 ----> SCK |
| PC10 MISO10 <---- SO |
| PC11 MOSI10 ----> SI |
|_______________________________________________|
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
//#define FM25CL64BG_CS PC8
#define FM25CL64BG_SIZE 8*1024
//FM25CL64BG命令
#define FM25CL64BG_WREN 0x06
#define FM25CL64BG_WRDI 0x04
#define FM25CL64BG_RDSR 0x05ff
#define FM25CL64BG_WRSR 0x0100
#define FM25CL64BG_READ 0x030000FF
#define FM25CL64BG_WRITE 0x02000000
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
void FM25CL64BG_Init(void);
void FM25CL64BG_Read (uint32_t addr, uint8_t *buf, uint32_t len);
void FM25CL64BG_Write(uint32_t addr, uint8_t *buf, uint32_t len);
void FM25CL64BG_Write_Byte(uint32_t addr,uint8_t wrdata);
void FM25CL64BG_Write_Status_Register(uint8_t wrdata);
uint8_t FM25CL64BG_Read_Byte(uint32_t addr);
uint8_t FM25CL64BG_Read_Status_Register(void);
void SPI1_Send_Data(uint32_t wrdata,uint8_t bits);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program.
* @param None
* @retval None
*/
void FM25CL64BG_Test(void)
{
uint32_t i;
/* Configure the FM25CL64BG */
FM25CL64BG_Init();
while(0)
{
// SPI1_Send_Data(0x55, 8);
// SPI_SET_SS0(SPI1); SPI1_Send_Data(0x55, 8);SPI_CLR_SS0(SPI1); //写0x55测试SPI接口
// FM25CL64BG_Write_Byte(0xCC, 0x55);
// FM25CL64BG_Read_Byte (0xCC);
// FM25CL64BG_Read_Status_Register();
}
FM25CL64BG_Write_Status_Register(0x00);
printf("FM25CL64BG_Read_Status_Register() = 0x%02x \n\r",FM25CL64BG_Read_Status_Register());
FM25CL64BG_Write_Byte(0xAA, 0x55);
FM25CL64BG_Write_Byte(0x55, 0xAA);
printf("FM25CL64BG_Read_Byte(0xAA) = 0x%02x \n\r",FM25CL64BG_Read_Byte(0xAA));
printf("FM25CL64BG_Read_Byte(0x55) = 0x%02x \n\r",FM25CL64BG_Read_Byte(0x55));
while(1)
{
for(i=0;i<FM25CL64BG_SIZE;i++)
{FM25CL64BG_Write_Byte(i, i&0xff);}
CLK_SysTickDelay(300000);
for(i=0;i<FM25CL64BG_SIZE;i++)
{
//for display
if((i%16)== 0){printf("\n\r%08xh:",i);}
printf(" %02x",FM25CL64BG_Read_Byte(i));
if((i%16)==15){printf(" ;");}
//display end
}
CLK_SysTickDelay(300000);
}
}
// SPI1_Send_Data(FM25640C_WREN,8);
// SPI1_Send_Data(FM25640C_WRDI,8);
void FM25CL64BG_Read(uint32_t addr, uint8_t *buf, uint32_t len)
{
uint32_t i;
for(i=0;i<len;i++)
{buf[i] = FM25CL64BG_Read_Byte(addr+i);}
}
void FM25CL64BG_Write(uint32_t addr, uint8_t *buf, uint32_t len)
{
uint32_t i;
for(i=0;i<len;i++)
{FM25CL64BG_Write_Byte(addr+i,buf[i]);}
}
uint8_t FM25CL64BG_Read_Byte(uint32_t addr)
{
uint32_t rddata,tmpdata=FM25CL64BG_READ;
tmpdata |= (addr << 8);
SPI1_Send_Data(tmpdata,32);
rddata = SPI_READ_RX0(SPI1);
return (uint8_t)rddata;
}
void FM25CL64BG_Write_Byte(uint32_t addr, uint8_t wrdata)
{
uint32_t tmpdata=FM25CL64BG_WRITE;
SPI1_Send_Data(FM25CL64BG_WREN,8); //中:使能写操作//Write Enable
tmpdata |= (addr << 8) + wrdata;
SPI1_Send_Data(tmpdata,32);
}
uint8_t FM25CL64BG_Read_Status_Register(void)
{
uint32_t rddata;
SPI1_Send_Data(FM25CL64BG_RDSR,16);
rddata = SPI_READ_RX0(SPI1);
return (uint8_t)rddata;
}
void FM25CL64BG_Write_Status_Register(uint8_t wrdata)
{
uint16_t dat=FM25CL64BG_WRSR | wrdata;
SPI1_Send_Data(FM25CL64BG_WREN,8); //中:使能写操作//Write Enable
SPI1_Send_Data(dat,16);
}
void SPI1_Send_Data(uint32_t wrdata, uint8_t bits)
{
SPI1->CNTRL = (SPI1->CNTRL&0xFFFFFF07) | ((bits&0x1f) << SPI_CNTRL_TX_BIT_LEN_Pos);
/* Write to TX register */
SPI_WRITE_TX0(SPI1, wrdata);
/* Trigger SPI1 data transfer */
SPI_TRIGGER(SPI1);
/* Check SPI1 busy status */
while(SPI_IS_BUSY(SPI1));
}
void SPI1_Init(void)
{
/* Select HCLK as the clock source of SPI1 */
CLK_SetModuleClock(SPI1_MODULE, CLK_CLKSEL1_SPI1_S_HCLK, MODULE_NoMsk);
/* Enable SPI1 peripheral clock */
CLK_EnableModuleClock(SPI1_MODULE);
/* Setup SPI1 multi-function pins */
SYS->GPC_MFP &= ~(SYS_GPC_MFP_PC8_Msk | SYS_GPC_MFP_PC9_Msk | SYS_GPC_MFP_PC10_Msk | SYS_GPC_MFP_PC11_Msk);
SYS->GPC_MFP |= SYS_GPC_MFP_PC8_SPI1_SS0 | SYS_GPC_MFP_PC9_SPI1_CLK | SYS_GPC_MFP_PC10_SPI1_MISO0 | SYS_GPC_MFP_PC11_SPI1_MOSI0;
SYS->ALT_MFP1 &= ~(SYS_ALT_MFP1_PC8_Msk | SYS_ALT_MFP1_PC9_Msk | SYS_ALT_MFP1_PC10_Msk | SYS_ALT_MFP1_PC11_Msk);
SYS->ALT_MFP1 |= SYS_ALT_MFP1_PC8_SPI1_SS0 | SYS_ALT_MFP1_PC9_SPI1_CLK | SYS_ALT_MFP1_PC10_SPI1_MISO0 | SYS_ALT_MFP1_PC11_SPI1_MOSI0;
/*---------------------------------------------------------------------------------------------------------*/
/* Init SPI */
/*---------------------------------------------------------------------------------------------------------*/
/* Configure as a master, clock idle low, 32-bit transaction, drive output on falling clock edge and latch input on rising edge. */
/* Set IP clock divider. SPI clock rate = 36MHz */
SPI_Open(SPI1, SPI_MASTER, SPI_MODE_0, 32, 36000000);
/* Enable the automatic hardware slave select function. Select the SS pin and configure as low-active. */
SPI_EnableAutoSS(SPI1, SPI_SS0, SPI_SS_ACTIVE_LOW);
}
void FM25CL64BG_Init(void)
{
SPI1_Init();
}//源码完毕
离线