From ac55307242da6846c2b8fe4b710fb90feaa30978 Mon Sep 17 00:00:00 2001
From: chen <15335560115@163.com>
Date: 星期三, 11 十二月 2024 17:15:39 +0800
Subject: [PATCH] PCA的INT脚加速度计清0判断成功，INT脚中断正常
---
keil/include/drivers/PCA9555.c | 17 ++++++++++-------
1 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/keil/include/drivers/PCA9555.c b/keil/include/drivers/PCA9555.c
index 5b82a5e..3848598 100644
--- a/keil/include/drivers/PCA9555.c
+++ b/keil/include/drivers/PCA9555.c
@@ -154,7 +154,7 @@
//读1个字节，ack=1时，发送ACK，ack=0，发送nACK,不是一样的
uint8_t IIC2_Read_pca_Byte(unsigned char ack)
{
- unsigned char i,receive=0;
+ unsigned char i,receive=0,bit=0;
gpio_pin_set_dir(SDA_PIN,GPIO_DIR_IN,0); //设置为输入读取电平
// io_pull_set(SDA_PIN , IO_HIGH_Z, IO_PULL_UP_NONE);
for(i=0; i<8; i++ )
@@ -162,8 +162,11 @@
SCL_0;
delay_us(6);//修改时间
SCL_1;
- receive<<=1;
- if(IIC2_READ_SDA)receive++;
+ //receive<<=1;
+ if(IIC2_READ_SDA){
+ bit=1<<i;
+ receive|=bit;
+ }
delay_us(5);
}
SCL_0;
@@ -435,11 +438,11 @@
{
//IIC_gpio_pca_init();//配置IIC管脚
- PCA9555_write_config_port_data(PCA9555_DEVICE_ADDR,PCA_OUTPUT_CONFIG_MASK,PCA_OUTPUT_CONFIG_MASK);//全配置为输出
+ //PCA9555_write_config_port_data(PCA9555_DEVICE_ADDR,PCA_OUTPUT_CONFIG_MASK,PCA_OUTPUT_CONFIG_MASK);//全配置为输出
- //PCA9555_write_config_port_data(PCA9555_DEVICE_ADDR,PCA_INPUT_CONFIG_MASK,PCA_INPUT_CONFIG_MASK);//全配置为输入
+ PCA9555_write_config_port_data(PCA9555_DEVICE_ADDR,PCA_INPUT_CONFIG_MASK,PCA_INPUT_CONFIG_MASK);//全配置为输入
//PCA9555_write_polarity_port_data(PCA9555_DEVICE_ADDR,0x00,0x00);//翻转
- PCA9555_Set_One_Value_Config(WAKE_UP,1);
+ //PCA9555_Set_One_Value_Config(WAKE_UP,1);
//PCA9555_Set_All_Output(1);
//PCA9555_readdata_from_output_register(PCA9555_DEVICE_ADDR,pca9555writedata_input);
@@ -448,7 +451,7 @@
// PCA9555_Set_All_Output(0);
//PCA9555_readdata_from_polarity_register(PCA9555_DEVICE_ADDR,pca9555writedata_input);
PCA9555_readdata(PCA9555_DEVICE_ADDR,pca9555writedata_input);//读输入寄存器的值
- PCA9555_readdata_from_config_register(PCA9555_DEVICE_ADDR,pca9555writedata_config);
+ //PCA9555_readdata_from_config_register(PCA9555_DEVICE_ADDR,pca9555writedata_config);
// PCA9555_Set_All_Output(0);//全部拉低
//测试
--
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