avr_libraries/zh_avr_pcf8574
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This commit is contained in:
Alexey Zholtikov
2025-09-02 17:37:51 +03:00
parent 196398ac6f
commit 8fa482771e
4 changed files with 122 additions and 68 deletions
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6
include/zh_avr_pcf8574.h
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@@ -2,9 +2,11 @@
#include "FreeRTOS.h"
#include "semphr.h"
#include "avr/pgmspace.h"
#include "zh_avr_i2c.h"
#include "zh_avr_vector.h"
#include "avr_err.h"
#include "avr_port.h"
#include "avr_bit_defs.h"
#define ZH_AVR_PCF8574_INIT_CONFIG_DEFAULT() \
@@ -20,7 +22,8 @@
.p5_gpio_work_mode = 0, \
.p6_gpio_work_mode = 0, \
.p7_gpio_work_mode = 0, \
.interrupt_gpio = 0xFF}
.interrupt_gpio = 0xFF, \
.interrupt_port = 0}
#ifdef __cplusplus
extern "C"
@@ -41,6 +44,7 @@ extern "C"
bool p6_gpio_work_mode; // Expander GPIO P6 work mode. True for input, false for output.
bool p7_gpio_work_mode; // Expander GPIO P7 work mode. True for input, false for output.
uint8_t interrupt_gpio; // Interrupt GPIO. @attention Must be same for all PCF8574 expanders.
uint8_t interrupt_port; // Interrupt port. @attention Must be same for all PCF8574 expanders.
} zh_avr_pcf8574_init_config_t;
typedef struct // PCF8574 expander handle.