From e9628df331488a100bb4134469a3a0ce7f321625 Mon Sep 17 00:00:00 2001
From: chen <15335560115@163.com>
Date: 星期一, 16 十二月 2024 14:30:12 +0800
Subject: [PATCH] 灯初步调通，颜色和设置的值一样，串口改变复用从中断改为轮询
---
keil/include/drivers/PCA9555.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/keil/include/drivers/PCA9555.c b/keil/include/drivers/PCA9555.c
index 7d8c8c1..d9069a2 100644
--- a/keil/include/drivers/PCA9555.c
+++ b/keil/include/drivers/PCA9555.c
@@ -434,6 +434,19 @@
//error
}
}
+/*读取5V引脚的输入高低电平
+ 返回值 高1 低0 电平
+*/
+int read_5v_input_pca(void)
+{PCA9555_readdata(PCA9555_DEVICE_ADDR,pca9555writedata_input);//读输入寄存器的值
+ uint16_t gpio_state;
+ gpio_state=(uint16_t)pca9555writedata_input[0]<<8|pca9555writedata_input[1];
+ if(INPUT_5V_POSITION&gpio_state)
+ return 1;
+ else {
+ return 0;
+ }
+}
void PCA9555_init()
{
//IIC_gpio_pca_init();//配置IIC管脚
@@ -451,6 +464,8 @@
PCA9555_Set_One_Value_Config(MCU_A,0);//设置串口复用芯片切换
PCA9555_Set_One_Value_Output(MCU_A,1);//输出高电平为uart通讯
PCA9555_Set_One_Value_Config(INPUT_5V,1);//设置5V输入检测
+ PCA9555_Set_One_Value_Config(GPS_LED,0);//设置LED灯输出
+ PCA9555_Set_One_Value_Output(GPS_LED,1);//输出高电平开启LED通闪烁
//PCA9555_readdata_from_output_register(PCA9555_DEVICE_ADDR,pca9555writedata_input);
//PCA9555_Set_One_Value_Output(AIR780E_ENBALE,0);
//PCA9555_Set_One_Value_Output(PWR_ON,0);
--
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