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李远红
2026-04-09 10:14:20 +08:00
commit e325a77b42
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Bsp/bsp_74hc595.c Normal file
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/*************************************************************************
> File Name: 74hc595.c
> Author: ma6174
> Mail: ma6174@163.com
> Created Time: 2023/9/20 17:48:24
************************************************************************/
#include "bsp_74hc595.h"
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#define DS_MOS(a) if (a) \
gpio_bits_set(GPIOB, GPIO_PINS_14);\
else \
gpio_bits_reset(GPIOB, GPIO_PINS_14)
#define SHCP_MOS(a) if (a) \
gpio_bits_set(GPIOA, GPIO_PINS_8);\
else \
gpio_bits_reset(GPIOA, GPIO_PINS_8)
#define STCP_MOS(a) if (a) \
gpio_bits_set(GPIOB, GPIO_PINS_15);\
else \
gpio_bits_reset(GPIOB, GPIO_PINS_15)
#define OE_MOS(a) if (a) \
gpio_bits_set(GPIOB, GPIO_PINS_13);\
else \
gpio_bits_reset(GPIOB, GPIO_PINS_13)
#define MR_MOS(a) if (a) \
gpio_bits_set(GPIOA, GPIO_PINS_7);\
else \
gpio_bits_reset(GPIOA, GPIO_PINS_7)
inline void ic_74hc595_delay(uint32_t num)
{
while(num --);
}
void ic_74hc595_init(void)
{
gpio_init_type gpio_init_struct;
/* enable the led clock */
crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK,TRUE);
crm_periph_clock_enable(CRM_GPIOB_PERIPH_CLOCK,TRUE);
/* set default parameter */
gpio_default_para_init(&gpio_init_struct);
/* configure the led gpio */
gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
gpio_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
gpio_init_struct.gpio_pins = GPIO_PINS_8;
gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
gpio_init(GPIOA, &gpio_init_struct);
gpio_init_struct.gpio_pins = GPIO_PINS_13 | GPIO_PINS_14 | GPIO_PINS_15;
gpio_init(GPIOB, &gpio_init_struct);
ic_74hc595_clean_0(32);
}
//<2F><>λ<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0;
//<2F><>ΪӲ<CEAA><D3B2><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ɨ
void ic_74hc595_io_write_1(uint8_t io_num)
{
DS_MOS(1);
SHCP_MOS(1);
ic_74hc595_delay(1);
SHCP_MOS(0);
for(uint8_t i = 0; i < io_num; i++)
{
DS_MOS(0);
SHCP_MOS(1);
ic_74hc595_delay(1);
SHCP_MOS(0);
ic_74hc595_delay(1);
}
STCP_MOS(1);
ic_74hc595_delay(1);
STCP_MOS(0);
}
//<2F><>λ<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1<EFBFBD><31>
//<2F><>ΪӲ<CEAA><D3B2><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ɨ
void ic_74hc595_io_write_0(uint8_t io_num)
{
DS_MOS(0);
SHCP_MOS(1);
ic_74hc595_delay(1);
SHCP_MOS(0);
for(uint8_t i = 0; i < io_num; i++)
{
DS_MOS(1);
SHCP_MOS(1);
ic_74hc595_delay(1);
SHCP_MOS(0);
ic_74hc595_delay(1);
}
STCP_MOS(1);
ic_74hc595_delay(1);
STCP_MOS(0);
}
//<2F><>λ<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>0
//<2F><>ΪӲ<CEAA><D3B2><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ɨ
void ic_74hc595_clean_0(uint8_t io_num)
{
DS_MOS(0);
SHCP_MOS(0);
STCP_MOS(0);
for(uint8_t i = 0; i < io_num; i++)
{
SHCP_MOS(1);
ic_74hc595_delay(1);
//<2F><>Ϊ<EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD>Ϊ<EFBFBD>´<EFBFBD>׼<EFBFBD><D7BC>
SHCP_MOS(0);
ic_74hc595_delay(1);
}
STCP_MOS(1);
ic_74hc595_delay(1);
STCP_MOS(0);
}
//<2F><>λ<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>1;
//<2F><>ΪӲ<CEAA><D3B2><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ɨ
void ic_74hc595_clean_1(uint8_t io_num)
{
DS_MOS(1);
SHCP_MOS(0);
STCP_MOS(0);
for(uint8_t i = 0; i < io_num; i++)
{
SHCP_MOS(1);
ic_74hc595_delay(1);
//<2F><>Ϊ<EFBFBD>͵<EFBFBD>ƽ<EFBFBD><C6BD>Ϊ<EFBFBD>´<EFBFBD>׼<EFBFBD><D7BC>
SHCP_MOS(0);
ic_74hc595_delay(1);
}
STCP_MOS(1);
ic_74hc595_delay(1);
STCP_MOS(0);
}
void ic_74hc595_wirte_32bit(uint32_t data)
{
DS_MOS(0);
SHCP_MOS(0);
STCP_MOS(0);
uint32_t temp = 0;
for(uint8_t i = 0; i < 32; i++)
{
temp = data & (0x80000000>>i);
DS_MOS(temp);
SHCP_MOS(1);
ic_74hc595_delay(1);
SHCP_MOS(0);
ic_74hc595_delay(1);
}
STCP_MOS(1);
ic_74hc595_delay(1);
STCP_MOS(0);
}