微控制器 01 STM32 LED燈

標頭檔案 stm32f10x.h

1#ifndef __stm32f10x_h
2#define __stm32f10x_h34
//用來存放stm32暫存器對映的**56
//外設 perirhral78
#define periph_base ((unsigned int)0x40000000)
9#define apb1periph_base periph_base
10#define apb2periph_base (periph_base + 0x10000)
11#define ahbperiph_base (periph_base + 0x20000)
1213
14#define rcc_base (ahbperiph_base + 0x1000)
15#define gpiob_base (apb2periph_base + 0x0c00)
1617
18#define rcc_apb2enr *(unsigned int*)(rcc_base + 0x18)
1920
#define gpiob_crl *(unsigned int*)(gpiob_base + 0x00)
21#define gpiob_crh *(unsigned int*)(gpiob_base + 0x04)
22#define gpiob_idr *(unsigned int*)(gpiob_base + 0x08)
23#define gpiob_odr *(unsigned int*)(gpiob_base + 0x0c)
24#define gpiob_bsrr *(unsigned int*)(gpiob_base + 0x10)
25#define gpiob_brr *(unsigned int*)(gpiob_base + 0x14)
26#define gpiob_lckr *(unsigned int*)(gpiob_base + 0x18)
2728 typedef unsigned int
uint32_t;
29 typedef unsigned short
uint16_t;
3031 typedef struct
32gpio_typedef;
4142
43 typedef struct
44rcc_typedef;
5657
58#define gpiob ((gpio_typedef*)gpiob_base)
59#define rcc ((rcc_typedef*)rcc_base)
6061
#endif /* __stm32f10x_h */

1

#ifndef __stm32f10x_h
2#define __stm32f10x_h34
//用來存放stm32暫存器對映的**56
//外設 perirhral78
#define periph_base ((unsigned int)0x40000000)
9#define apb1periph_base periph_base
10#define apb2periph_base (periph_base + 0x10000)
11#define ahbperiph_base (periph_base + 0x20000)
1213
14#define rcc_base (ahbperiph_base + 0x1000)
15#define gpiob_base (apb2periph_base + 0x0c00)
1617
18#define rcc_apb2enr *(unsigned int*)(rcc_base + 0x18)
1920
#define gpiob_crl *(unsigned int*)(gpiob_base + 0x00)
21#define gpiob_crh *(unsigned int*)(gpiob_base + 0x04)
22#define gpiob_idr *(unsigned int*)(gpiob_base + 0x08)
23#define gpiob_odr *(unsigned int*)(gpiob_base + 0x0c)
24#define gpiob_bsrr *(unsigned int*)(gpiob_base + 0x10)
25#define gpiob_brr *(unsigned int*)(gpiob_base + 0x14)
26#define gpiob_lckr *(unsigned int*)(gpiob_base + 0x18)
2728 typedef unsigned int
uint32_t;
29 typedef unsigned short
uint16_t;
3031 typedef struct
32gpio_typedef;
4142
43 typedef struct
44rcc_typedef;
5657
58#define gpiob ((gpio_typedef*)gpiob_base)
59#define rcc ((rcc_typedef*)rcc_base)
6061
#endif /* __stm32f10x_h */

main.c

1

//#if 023
//#include 45
//sbit led = p0^067
//void main(void)8//
1314
//#endif
1516
1718 #include "
stm32f10x.h
"19 #include "
stm32f10x_gpio.h"20
21//
#define led_g_gpio_port gpiob
22//
#define led_g_gpio_clk_enable (rcc->apb2enr |= ( (1) << 3 ))
23//
#define led_g_gpio_pin gpio_pin_0
2425
#define led_g_gpio_port gpiob
26#define led_g_gpio_clk_enable (rcc->apb2enr |= ( (1) << 3 ))
27#define led_g_gpio_pin gpio_pin_0
2829
void
delay(uint32_t count)
3033
34int main (void)35
103104
#endif
105}
106107
108void systeminit(void
)109

**來自野火

實現從 記憶體—暫存器—結構體+指標—初始化結構體外設函式的過渡。

課程完成了對於內部函式組成的講解

點led燈的基本流程

1、gpiob的埠時鐘

2、pin/mode/speed設定並輸入init函式

3、通過gpio_setbits()/gpio_rsestbits()完成引腳的開關

將關鍵內容通過巨集定義，使得接下來遷移更方便

#define led_g_gpio_port gpiob

#define led_g_gpio_pin gpio_pin_0

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