【ARM 裸机】模仿 STM32 驱动开发

ops/2024/9/24 0:58:09/

1、修改驱动

对于 STM32 来说，使用了一个结构体将一个外设的所有寄存器都放在一起，在上一节的基础上进行修改；

1.1、添加清除 bss 段代码，

在这里插入图片描述

1.2、添加寄存器结构体

新建一个文件，命名imx6u.h，注意地址的连续性，不连续记得占位；
在这里插入图片描述
让定义的结构体和基地址联系起来
在这里插入图片描述
其他外设也一样，包含 CCM_Type、IOMUX_SW_MUX_Type、IOMUX_SW_PAD_Type、GPIO_Type；
imx6u.h

// 外设寄存器组的基地址
#define CCM_BASE					(0X020C4000)
#define IOMUX_SW_MUX_BASE			(0X020E0044)
#define IOMUX_SW_PAD_BASE			(0X020E0204)
#define GPIO1_BASE                  (0X0209C000)// CCM 外设
typedef struct 
{volatile unsigned int CCR;volatile unsigned int CCDR;volatile unsigned int CSR;volatile unsigned int CCSR;volatile unsigned int CACRR;volatile unsigned int CBCDR;volatile unsigned int CBCMR;volatile unsigned int CSCMR1;volatile unsigned int CSCMR2;volatile unsigned int CSCDR1;volatile unsigned int CS1CDR;volatile unsigned int CS2CDR;volatile unsigned int CDCDR;volatile unsigned int CHSCCDR;volatile unsigned int CSCDR2;volatile unsigned int CSCDR3;	volatile unsigned int RESERVED_1[2];volatile unsigned int CDHIPR;  volatile unsigned int RESERVED_2[2];volatile unsigned int CLPCR;volatile unsigned int CISR;volatile unsigned int CIMR;volatile unsigned int CCOSR;volatile unsigned int CGPR;volatile unsigned int CCGR0;volatile unsigned int CCGR1;volatile unsigned int CCGR2;volatile unsigned int CCGR3;volatile unsigned int CCGR4;volatile unsigned int CCGR5;volatile unsigned int CCGR6;volatile unsigned int RESERVED_3[1];volatile unsigned int CMEOR;
}CCM_Type;// IOMUX 寄存器组
typedef struct 
{volatile unsigned int JTAG_MOD;volatile unsigned int JTAG_TMS;volatile unsigned int JTAG_TDO;volatile unsigned int JTAG_TDI;volatile unsigned int JTAG_TCK;volatile unsigned int JTAG_TRST_B;volatile unsigned int GPIO1_IO00;volatile unsigned int GPIO1_IO01;volatile unsigned int GPIO1_IO02;volatile unsigned int GPIO1_IO03;volatile unsigned int GPIO1_IO04;volatile unsigned int GPIO1_IO05;volatile unsigned int GPIO1_IO06;volatile unsigned int GPIO1_IO07;volatile unsigned int GPIO1_IO08;volatile unsigned int GPIO1_IO09;volatile unsigned int UART1_TX_DATA;volatile unsigned int UART1_RX_DATA;volatile unsigned int UART1_CTS_B;volatile unsigned int UART1_RTS_B;volatile unsigned int UART2_TX_DATA;volatile unsigned int UART2_RX_DATA;volatile unsigned int UART2_CTS_B;volatile unsigned int UART2_RTS_B;volatile unsigned int UART3_TX_DATA;volatile unsigned int UART3_RX_DATA;volatile unsigned int UART3_CTS_B;volatile unsigned int UART3_RTS_B;volatile unsigned int UART4_TX_DATA;volatile unsigned int UART4_RX_DATA;volatile unsigned int UART5_TX_DATA;volatile unsigned int UART5_RX_DATA;volatile unsigned int ENET1_RX_DATA0;volatile unsigned int ENET1_RX_DATA1;volatile unsigned int ENET1_RX_EN;volatile unsigned int ENET1_TX_DATA0;volatile unsigned int ENET1_TX_DATA1;volatile unsigned int ENET1_TX_EN;volatile unsigned int ENET1_TX_CLK;volatile unsigned int ENET1_RX_ER;volatile unsigned int ENET2_RX_DATA0;volatile unsigned int ENET2_RX_DATA1;volatile unsigned int ENET2_RX_EN;volatile unsigned int ENET2_TX_DATA0;volatile unsigned int ENET2_TX_DATA1;volatile unsigned int ENET2_TX_EN;volatile unsigned int ENET2_TX_CLK;volatile unsigned int ENET2_RX_ER;volatile unsigned int LCD_CLK;volatile unsigned int LCD_ENABLE;volatile unsigned int LCD_HSYNC;volatile unsigned int LCD_VSYNC;volatile unsigned int LCD_RESET;volatile unsigned int LCD_DATA00;volatile unsigned int LCD_DATA01;volatile unsigned int LCD_DATA02;volatile unsigned int LCD_DATA03;volatile unsigned int LCD_DATA04;volatile unsigned int LCD_DATA05;volatile unsigned int LCD_DATA06;volatile unsigned int LCD_DATA07;volatile unsigned int LCD_DATA08;volatile unsigned int LCD_DATA09;volatile unsigned int LCD_DATA10;volatile unsigned int LCD_DATA11;volatile unsigned int LCD_DATA12;volatile unsigned int LCD_DATA13;volatile unsigned int LCD_DATA14;volatile unsigned int LCD_DATA15;volatile unsigned int LCD_DATA16;volatile unsigned int LCD_DATA17;volatile unsigned int LCD_DATA18;volatile unsigned int LCD_DATA19;volatile unsigned int LCD_DATA20;volatile unsigned int LCD_DATA21;volatile unsigned int LCD_DATA22;volatile unsigned int LCD_DATA23;volatile unsigned int NAND_RE_B;volatile unsigned int NAND_WE_B;volatile unsigned int NAND_DATA00;volatile unsigned int NAND_DATA01;volatile unsigned int NAND_DATA02;volatile unsigned int NAND_DATA03;volatile unsigned int NAND_DATA04;volatile unsigned int NAND_DATA05;volatile unsigned int NAND_DATA06;volatile unsigned int NAND_DATA07;volatile unsigned int NAND_ALE;volatile unsigned int NAND_WP_B;volatile unsigned int NAND_READY_B;volatile unsigned int NAND_CE0_B;volatile unsigned int NAND_CE1_B;volatile unsigned int NAND_CLE;volatile unsigned int NAND_DQS;volatile unsigned int SD1_CMD;volatile unsigned int SD1_CLK;volatile unsigned int SD1_DATA0;volatile unsigned int SD1_DATA1;volatile unsigned int SD1_DATA2;volatile unsigned int SD1_DATA3;volatile unsigned int CSI_MCLK;volatile unsigned int CSI_PIXCLK;volatile unsigned int CSI_VSYNC;volatile unsigned int CSI_HSYNC;volatile unsigned int CSI_DATA00;volatile unsigned int CSI_DATA01;volatile unsigned int CSI_DATA02;volatile unsigned int CSI_DATA03;volatile unsigned int CSI_DATA04;volatile unsigned int CSI_DATA05;volatile unsigned int CSI_DATA06;volatile unsigned int CSI_DATA07;
}IOMUX_SW_MUX_Type;typedef struct 
{volatile unsigned int DRAM_ADDR00;volatile unsigned int DRAM_ADDR01;volatile unsigned int DRAM_ADDR02;volatile unsigned int DRAM_ADDR03;volatile unsigned int DRAM_ADDR04;volatile unsigned int DRAM_ADDR05;volatile unsigned int DRAM_ADDR06;volatile unsigned int DRAM_ADDR07;volatile unsigned int DRAM_ADDR08;volatile unsigned int DRAM_ADDR09;volatile unsigned int DRAM_ADDR10;volatile unsigned int DRAM_ADDR11;volatile unsigned int DRAM_ADDR12;volatile unsigned int DRAM_ADDR13;volatile unsigned int DRAM_ADDR14;volatile unsigned int DRAM_ADDR15;volatile unsigned int DRAM_DQM0;volatile unsigned int DRAM_DQM1;volatile unsigned int DRAM_RAS_B;volatile unsigned int DRAM_CAS_B;volatile unsigned int DRAM_CS0_B;volatile unsigned int DRAM_CS1_B;volatile unsigned int DRAM_SDWE_B;volatile unsigned int DRAM_ODT0;volatile unsigned int DRAM_ODT1;volatile unsigned int DRAM_SDBA0;volatile unsigned int DRAM_SDBA1;volatile unsigned int DRAM_SDBA2;volatile unsigned int DRAM_SDCKE0;volatile unsigned int DRAM_SDCKE1;volatile unsigned int DRAM_SDCLK0_P;volatile unsigned int DRAM_SDQS0_P;volatile unsigned int DRAM_SDQS1_P;volatile unsigned int DRAM_RESET;volatile unsigned int TEST_MODE;volatile unsigned int POR_B;volatile unsigned int ONOFF;volatile unsigned int SNVS_PMIC_ON_REQ;volatile unsigned int CCM_PMIC_STBY_REQ;volatile unsigned int BOOT_MODE0;volatile unsigned int BOOT_MODE1;volatile unsigned int SNVS_TAMPER0;volatile unsigned int SNVS_TAMPER1;volatile unsigned int SNVS_TAMPER2;volatile unsigned int SNVS_TAMPER3;volatile unsigned int SNVS_TAMPER4;volatile unsigned int SNVS_TAMPER5;volatile unsigned int SNVS_TAMPER6;volatile unsigned int SNVS_TAMPER7;volatile unsigned int SNVS_TAMPER8;volatile unsigned int SNVS_TAMPER9;volatile unsigned int JTAG_MOD;volatile unsigned int JTAG_TMS;volatile unsigned int JTAG_TDO;volatile unsigned int JTAG_TDI;volatile unsigned int JTAG_TCK;volatile unsigned int JTAG_TRST_B;volatile unsigned int GPIO1_IO00;volatile unsigned int GPIO1_IO01;volatile unsigned int GPIO1_IO02;volatile unsigned int GPIO1_IO03;volatile unsigned int GPIO1_IO04;volatile unsigned int GPIO1_IO05;volatile unsigned int GPIO1_IO06;volatile unsigned int GPIO1_IO07;volatile unsigned int GPIO1_IO08;volatile unsigned int GPIO1_IO09;volatile unsigned int UART1_TX_DATA;volatile unsigned int UART1_RX_DATA;volatile unsigned int UART1_CTS_B;volatile unsigned int UART1_RTS_B;volatile unsigned int UART2_TX_DATA;volatile unsigned int UART2_RX_DATA;volatile unsigned int UART2_CTS_B;volatile unsigned int UART2_RTS_B;volatile unsigned int UART3_TX_DATA;volatile unsigned int UART3_RX_DATA;volatile unsigned int UART3_CTS_B;volatile unsigned int UART3_RTS_B;volatile unsigned int UART4_TX_DATA;volatile unsigned int UART4_RX_DATA;volatile unsigned int UART5_TX_DATA;volatile unsigned int UART5_RX_DATA;volatile unsigned int ENET1_RX_DATA0;volatile unsigned int ENET1_RX_DATA1;volatile unsigned int ENET1_RX_EN;volatile unsigned int ENET1_TX_DATA0;volatile unsigned int ENET1_TX_DATA1;volatile unsigned int ENET1_TX_EN;volatile unsigned int ENET1_TX_CLK;volatile unsigned int ENET1_RX_ER;volatile unsigned int ENET2_RX_DATA0;volatile unsigned int ENET2_RX_DATA1;volatile unsigned int ENET2_RX_EN;volatile unsigned int ENET2_TX_DATA0;volatile unsigned int ENET2_TX_DATA1;volatile unsigned int ENET2_TX_EN;volatile unsigned int ENET2_TX_CLK;volatile unsigned int ENET2_RX_ER;volatile unsigned int LCD_CLK;volatile unsigned int LCD_ENABLE;volatile unsigned int LCD_HSYNC;volatile unsigned int LCD_VSYNC;volatile unsigned int LCD_RESET;volatile unsigned int LCD_DATA00;volatile unsigned int LCD_DATA01;volatile unsigned int LCD_DATA02;volatile unsigned int LCD_DATA03;volatile unsigned int LCD_DATA04;volatile unsigned int LCD_DATA05;volatile unsigned int LCD_DATA06;volatile unsigned int LCD_DATA07;volatile unsigned int LCD_DATA08;volatile unsigned int LCD_DATA09;volatile unsigned int LCD_DATA10;volatile unsigned int LCD_DATA11;volatile unsigned int LCD_DATA12;volatile unsigned int LCD_DATA13;volatile unsigned int LCD_DATA14;volatile unsigned int LCD_DATA15;volatile unsigned int LCD_DATA16;volatile unsigned int LCD_DATA17;volatile unsigned int LCD_DATA18;volatile unsigned int LCD_DATA19;volatile unsigned int LCD_DATA20;volatile unsigned int LCD_DATA21;volatile unsigned int LCD_DATA22;volatile unsigned int LCD_DATA23;volatile unsigned int NAND_RE_B;volatile unsigned int NAND_WE_B;volatile unsigned int NAND_DATA00;volatile unsigned int NAND_DATA01;volatile unsigned int NAND_DATA02;volatile unsigned int NAND_DATA03;volatile unsigned int NAND_DATA04;volatile unsigned int NAND_DATA05;volatile unsigned int NAND_DATA06;volatile unsigned int NAND_DATA07;volatile unsigned int NAND_ALE;volatile unsigned int NAND_WP_B;volatile unsigned int NAND_READY_B;volatile unsigned int NAND_CE0_B;volatile unsigned int NAND_CE1_B;volatile unsigned int NAND_CLE;volatile unsigned int NAND_DQS;volatile unsigned int SD1_CMD;volatile unsigned int SD1_CLK;volatile unsigned int SD1_DATA0;volatile unsigned int SD1_DATA1;volatile unsigned int SD1_DATA2;volatile unsigned int SD1_DATA3;volatile unsigned int CSI_MCLK;volatile unsigned int CSI_PIXCLK;volatile unsigned int CSI_VSYNC;volatile unsigned int CSI_HSYNC;volatile unsigned int CSI_DATA00;volatile unsigned int CSI_DATA01;volatile unsigned int CSI_DATA02;volatile unsigned int CSI_DATA03;volatile unsigned int CSI_DATA04;volatile unsigned int CSI_DATA05;volatile unsigned int CSI_DATA06;volatile unsigned int CSI_DATA07;volatile unsigned int GRP_ADDDS;volatile unsigned int GRP_DDRMODE_CTL;volatile unsigned int GRP_B0DS;volatile unsigned int GRP_DDRPK;volatile unsigned int GRP_CTLDS;volatile unsigned int GRP_B1DS;volatile unsigned int GRP_DDRHYS;volatile unsigned int GRP_DDRPKE;volatile unsigned int GRP_DDRMODE;volatile unsigned int GRP_DDR_TYPE;
}IOMUX_SW_PAD_Type;// GPIO寄存器结构体
typedef struct 
{volatile unsigned int DR;							volatile unsigned int GDIR; 							volatile unsigned int PSR;								volatile unsigned int ICR1; 							volatile unsigned int ICR2; 							 volatile unsigned int IMR;								 volatile unsigned int ISR;			volatile unsigned int EDGE_SEL;  
}GPIO_Type;// 外设指针 
#define CCM					((CCM_Type *)CCM_BASE)
#define IOMUX_SW_MUX		((IOMUX_SW_MUX_Type *)IOMUX_SW_MUX_BASE)
#define IOMUX_SW_PAD		((IOMUX_SW_PAD_Type *)IOMUX_SW_PAD_BASE)
#define GPIO1				((GPIO_Type *)GPIO1_BASE)

2、修改 main.c；

在这里插入图片描述

#include "imx6u.h"// 使能外设时钟
void clk_enable(void)
{CCM->CCGR0 = 0xffffffff;CCM->CCGR1 = 0xffffffff;CCM->CCGR2 = 0xffffffff;CCM->CCGR3 = 0xffffffff;CCM->CCGR4 = 0xffffffff;CCM->CCGR5 = 0xffffffff;CCM->CCGR6 = 0xffffffff;
}// 初始化 led
void led_init(void)
{IOMUX_SW_MUX->GPIO1_IO03 = 0x5;   // 复用为 GPIO1_IO03IOMUX_SW_PAD->GPIO1_IO03 =0x10b0;   // 配置电气属性// GPIO 初始化GPIO1->GDIR = 0x8;   // 设置为输出GPIO1->DR = 0x0;   // 打开 led
}// 短延时
void delay_short(volatile unsigned int n)
{while(n--){}
}// 长延时,在 396MHz 下一次循环大概 1 ms
void delay_ms(volatile unsigned int n)
{while(n--){delay_short(0x7ff);}
} // 打开 led
void led_on(void)
{GPIO1->DR &= ~(1<<3);   // bit3 清零
}// 关闭 led
void led_off(void)
{GPIO1->DR |= (1<<3);   // bit3 置1
}int main(void)
{clk_enable();led_init();// led 闪烁while(1){led_off();delay_ms(100);led_on();delay_ms(100);}return 0; 
}

3、修改 Makefile；

在这里插入图片描述

objs    := start.o main.o
gcc     := arm-linux-gnueabihf-gcc
ld      := arm-linux-gnueabihf-ld
objcopy := arm-linux-gnueabihf-objcopy
objdump := arm-linux-gnueabihf-objdumpledc.bin : $(objs)$(ld) -Timx6u.lds -o ledc.elf $^$(objcopy) -O binary -S ledc.elf $@$(objdump) -D -m arm ledc.elf > ledc.dis%.o : %.c$(gcc) -Wall -nostdlib -c -O2 -o $@ $<%.o : %.s$(gcc) -Wall -nostdlib -c -O2 -o $@ $<clean:rm -rf *.o ledc.bin ledc.elf ledc.dis

给出连接脚本

SECTIONS{. = 0X87800000;.text :{start.o *(.text)}.rodata ALIGN(4) : {*(.rodata*)}     .data ALIGN(4)   : { *(.data) }    __bss_start = .;    .bss ALIGN(4)  : { *(.bss)  *(COMMON) }    __bss_end = .;
}

4、编译烧写验证；

在这里插入图片描述

I.MX6ULL_ledc_stm32


http://www.ppmy.cn/ops/16524.html

相关文章

鸿蒙应用ArkTS开发- 选择图片、文件和拍照功能实现

鸿蒙应用ArkTS开发- 选择图片、文件和拍照功能实现

前言 在使用App的时候&#xff0c;我们经常会在一些社交软件中聊天时发一些图片或者文件之类的多媒体文件&#xff0c;那在鸿蒙原生应用中&#xff0c;我们怎么开发这样的功能呢&#xff1f; 本文会给大家对这个功能点进行讲解&#xff0c;我们采用的是拉起系统组件来进行图片…
阅读更多...
冯喜运：4.26最新外汇黄金美原油走势分析及操作策略

冯喜运：4.26最新外汇黄金美原油走势分析及操作策略

【黄金消息面分析】&#xff1a;周四&#xff08;4月25日&#xff09;美盘时段&#xff0c;现货黄金强势上涨最高触及2345美元/盎司附近&#xff0c;目前小幅回落交投于2326美元/盎司附近。由于美元走弱&#xff0c;黄金价格今天小幅走高&#xff0c;市场参与者积极等待可能影响…
阅读更多...
RabbitMQ传递序列化/反序列化自定义对象时踩坑

RabbitMQ传递序列化/反序列化自定义对象时踩坑

问题1 错误信息&#xff1a; java.lang.IllegalArgumentException: SimpleMessageConverter only supports String, byte[] and Serializable payloads, received: com.hmall.api.dto.CartRemoveDTO错误信息提示&#xff1a;RabbitMQ默认的消息转换器SimpleMessageConverter …
阅读更多...
PHP安装dbase扩展，2024最新安装日志，注意PHP版本、扩展目录路径、文件权限3个大坑

PHP安装dbase扩展，2024最新安装日志，注意PHP版本、扩展目录路径、文件权限3个大坑

今天在我的免费云服务器&#xff0c;阿贝云上安装dbase扩展。系统是centos&#xff0c;安装好了宝塔面板。 第一步&#xff0c; yum install php-pear pecl install dbase &#xff08;显示Installing ‘/usr/lib64/php/modules/dbase.so’ install ok: channel://pecl.php.net…
阅读更多...
稳态视觉诱发电位 (SSVEP) 分类学习系列 (2) :EEGNet

稳态视觉诱发电位 (SSVEP) 分类学习系列 (2) :EEGNet

稳态视觉诱发电位分类学习系列:EEGNet 0. 引言1. 主要贡献2. 提出的方法3. 结果3.1 Compact-CNN 优于 CCA 和 Combined-CCA3.2 Compact-CNN提取窄带频率活动3.3 Compact-CNN揭示了类之间的差异 4. 总结欢迎来稿 论文地址&#xff1a;https://iopscience.iop.org/article/10.108…
阅读更多...
【ensp实验】Telnet 协议

【ensp实验】Telnet 协议

目录 Telnet 协议 telnet协议特点 Telnet实验 ​编辑 不使用console口 三种认证模式的区别 Telnet 协议 Telnet 协议是 TCP/IP 协议族中的一员&#xff0c;是 Internet 远程登录服务的标准协议和主要方式。它为用户提供了在本地计算机上完成远程主机工作的能力。在终端使用…
阅读更多...
Kotlin作用域函数引发的遮蔽问题

Kotlin作用域函数引发的遮蔽问题

前面讲了kotlin的it变量引起的遮蔽问题&#xff0c;见Kotlin it隐式变量的遮蔽问题&#xff0c;本篇聊聊作用域函数&#xff08;scoped function&#xff09;可能引起的遮蔽问题。 先来看一个简单的示例&#xff1a; fun test(): String {val s: String "asdf".al…
阅读更多...
《前端面试题》- React - 如何区分函数组件和类组件

《前端面试题》- React - 如何区分函数组件和类组件

问题 如何区分函数组件和类组件&#xff1f; 答案 可以使用instanceof 或者Component.prototype.isReactComponent。 示例 函数组件 export default function FunctionComonent() {if(FunctionComonent.prototype.isReactComponent){console.log(FunctionComonent是类组件…
阅读更多...
最新文章

Copyright @ 2022~2023