#ifndef __TCA6424A_H__
#define __TCA6424A_H__
#include <stdint.h>
#include "NUC123.h"
#define CLOSE_LED 0
#define CHANNEL_SELECT 1
#define MODE_SELECT 2
#define VOLT2 3
#define TRIGGER 4
#define VOLT1 5
#define FREQ 6
#define CH1 7
#define CH2 8
#define CH3 9
#define CH4 10
#define CH5 11
#define CH6 12
#define I2C1_SDA_OUT() GPIO_SetMode(PA, BIT10, GPIO_PMD_QUASI)
#define I2C1_SDA_IN() GPIO_SetMode(PA, BIT10, GPIO_PMD_QUASI)
#define I2C1_READ_SDA (PA10)
#define I2C1_INT (PB12)
#define I2C1_SCL (PA11)
#define I2C1_SDA (PA10)
#define I2C1_RESET (PD8)
#define I2C2_SDA_OUT() GPIO_SetMode(PF, BIT2, GPIO_PMD_QUASI)
#define I2C2_SDA_IN() GPIO_SetMode(PF, BIT2, GPIO_PMD_QUASI)
#define I2C2_READ_SDA (PF2)
#define I2C2_INT (PB8)
#define I2C2_SCL (PF3)
#define I2C2_SDA (PF2)
#define I2C2_RESET (PB15)
/************************** I2C Address ***************************************/
#define TCA6424A_IIC_ADDR 0x22 // I2C Address 0100 01 + ADDR + R/W
// ADDR tied to P2.3 of LaunchPad
/************************** I2C Registers *************************************/
#define TCA6424A_INPUT_REG0 0x00 // Input status register
#define TCA6424A_INPUT_REG1 0x01 // Input status register
#define TCA6424A_INPUT_REG2 0x02 // Input status register
#define TCA6424A_OUTPUT_REG0 0x04 // Output register to change state of output BIT set to 1, output set HIGH
#define TCA6424A_OUTPUT_REG1 0x05 // Output register to change state of output BIT set to 1, output set HIGH
#define TCA6424A_OUTPUT_REG2 0x06 // Output register to change state of output BIT set to 1, output set HIGH
#define TCA6424A_POLARITY_REG0 0x08 // Polarity inversion register. BIT '1' inverts input polarity of register 0x00
#define TCA6424A_POLARITY_REG1 0x09 // Polarity inversion register. BIT '1' inverts input polarity of register 0x00
#define TCA6424A_POLARITY_REG2 0x0A // Polarity inversion register. BIT '1' inverts input polarity of register 0x00
#define TCA6424A_CONFIG_REG0 0x0C // Configuration register. BIT = '1' sets port to input BIT = '0' sets port to output
#define TCA6424A_CONFIG_REG1 0x0D // Configuration register. BIT = '1' sets port to input BIT = '0' sets port to output
#define TCA6424A_CONFIG_REG2 0x0E // Configuration register. BIT = '1' sets port to input BIT = '0' sets port to output
#define TCA6424A_LOW 0
#define TCA6424A_HIGH 1
#define TCA6424A_POLARITY_NORMAL 0
#define TCA6424A_POLARITY_INVERTED 1
#define TCA6424A_OUTPUT 0
#define TCA6424A_INPUT 1
#define TCA6424A_AUTO_INCREMENT 0x80
#define TCA6424A_IO_ALL 0xFF
#define IS_BIT_LOW(num, x) (num & (1 << x) ? 0 : 1)
typedef struct TCA6424A_KEY
{
uint8_t key[13];
}I2C_KEY_T;
typedef struct TCA6424A_IO
{
uint8_t io[6];
}I2C_IO_T;
typedef struct TCA6424A_LED
{
uint8_t led[12];
}I2C_LED_T;
void tca6424a_io_init(void);
void tca6424a_io_int_init(void);
void tca6424a_key_init(void);
void tca6424a_key_int_init(void);
void GPAB_IRQHandler(void);
uint8_t i2c1_read_reg(uint8_t reg);
void i2c1_conf_reg(uint8_t reg, uint8_t data);
void i2c1_write_pin(uint8_t reg, uint8_t read_data, uint8_t pin, uint8_t state);
uint8_t i2c2_read_reg(uint8_t reg);
void i2c2_conf_reg(uint8_t reg, uint8_t data);
void i2c2_write_pin(uint8_t reg, uint8_t read_data, uint8_t pin, uint8_t state);
void key_handler(uint8_t *data);
void led_handler(uint8_t *in_data);
#endif
#include "tca6424a.h"
#include <stdlib.h>
#include <stdio.h>
#include "system_NUC123.h"
//menu.c
extern uint8_t volt_disp_reset, volt_disp_mutex;
uint8_t key_led_flag = 0;
uint8_t key_value_tca6424a[3] = {
0};
I2C_KEY_T i2c_key = {
0};
I2C_LED_T i2c_led = {
0};
//产生IIC起始信号
static void I2C1_Start(void)
{
I2C1_SDA_OUT(); //sda线输出
I2C1_SDA = 1;
I2C1_SCL = 1;
delay_us(4);
I2C1_SDA = 0;//START:when CLK is high,DATA change form high to low
delay_us(4);
I2C1_SCL = 0;//钳住I2C总线，准备发送或接收数据
}
//产生IIC停止信号
static void I2C1_Stop(void)
{
I2C1_SDA_OUT();//sda线输出
I2C1_SCL = 0;
I2C1_SDA = 0;//STOP:when CLK is high DATA change form low to high
delay_us(4);
I2C1_SCL = 1;
delay_us(4);
I2C1_SDA = 1;//发送I2C总线结束信号
delay_us(4);
}
//等待应答信号到来
//返回值：1，接收应答失败
// 0，接收应答成功
static uint8_t I2C1_Wait_Ack(void)
{
uint8_t time = 0;
I2C1_SDA_IN(); //SDA设置为输入
I2C1_SDA = 1;
delay_us(4);
I2C1_SCL = 1;
delay_us(4);
while (I2C1_READ_SDA)
{
time++;
if (time > 250)
{
I2C1_Stop();
return 1;
}
}
I2C1_SCL = 0;//时钟输出0
return 0;
}
//产生ACK应答
static void I2C1_Ack(void)
{
I2C1_SCL = 0;
I2C1_SDA_OUT();
I2C1_SDA = 0;
delay_us(4);
I2C1_SCL = 1;
delay_us(4);
I2C1_SCL = 0;
}
//不产生ACK应答
static void I2C1_NAck(void)
{
I2C1_SCL = 0;
I2C1_SDA_OUT();
I2C1_SDA = 1;
delay_us(4);
I2C1_SCL = 1;
delay_us(4);
I2C1_SCL = 0;
}
//IIC发送一个字节
//返回从机有无应答
//1，有应答
//0，无应答
static void I2C1_Send_Byte(uint8_t txd)
{
uint8_t t = 0;
I2C1_SDA_OUT();
I2C1_SCL = 0;//拉低时钟开始数据传输
for (t = 0; t < 8; t++)
{
I2C1_SDA = ((txd & 0x80) >> 7);
txd <<= 1;
delay_us(4); //对TEA5767这三个延时都是必须的
I2C1_SCL = 1;
delay_us(4);
I2C1_SCL = 0;
delay_us(4);
}
}
//读1个字节，ack=1时，发送ACK，ack=0，发送nACK
static uint8_t I2C1_Read_Byte(unsigned char ack)
{
unsigned char i = 0, receive = 0;
I2C1_SDA_IN();//SDA设置为输入
for (i = 0; i < 8; i++)
{
I2C1_SCL = 0;
delay_us(4);
I2C1_SCL = 1;
receive <<= 1;
if (I2C1_READ_SDA)
{
receive++;
}
delay_us(4);
}
if (!ack)
{
I2C1_NAck();//发送nACK
}
else
{
I2C1_Ack(); //发送ACK
}
return receive;
}
//产生IIC起始信号
static void I2C2_Start(void)
{
I2C2_SDA_OUT(); //sda线输出
I2C2_SDA = 1;
I2C2_SCL = 1;
delay_us(4);
I2C2_SDA = 0;//START:when CLK is high,DATA change form high to low
delay_us(4);
I2C2_SCL = 0;//钳住I2C总线，准备发送或接收数据
}
//产生IIC停止信号
static void I2C2_Stop(void)
{
I2C2_SDA_OUT();//sda线输出
I2C2_SCL = 0;
I2C2_SDA = 0;//STOP:when CLK is high DATA change form low to high
delay_us(4);
I2C2_SCL = 1;
delay_us(4);
I2C2_SDA = 1;//发送I2C总线结束信号
delay_us(4);
}
//等待应答信号到来
//返回值：1，接收应答失败
// 0，接收应答成功
static uint8_t I2C2_Wait_Ack(void)
{
uint8_t time = 0;
I2C2_SDA_IN(); //SDA设置为输入
I2C2_SDA = 1;
delay_us(4);
I2C2_SCL = 1;
delay_us(4);
while (I2C2_READ_SDA)
{
time++;
if (time > 250)
{
I2C2_Stop();
return 1;
}
}
I2C2_SCL = 0;//时钟输出0
return 0;
}
//产生ACK应答
static void I2C2_Ack(void)
{
I2C2_SCL = 0;
I2C2_SDA_OUT();
I2C2_SDA = 0;
delay_us(4);
I2C2_SCL = 1;
delay_us(4);
I2C2_SCL = 0;
}
//不产生ACK应答
static void I2C2_NAck(void)
{
I2C2_SCL = 0;
I2C2_SDA_OUT();
I2C2_SDA = 1;
delay_us(4);
I2C2_SCL = 1;
delay_us(4);
I2C2_SCL = 0;
}
//IIC发送一个字节
//返回从机有无应答
//1，有应答
//0，无应答
static void I2C2_Send_Byte(uint8_t txd)
{
uint8_t t = 0;
I2C2_SDA_OUT();
I2C2_SCL = 0;//拉低时钟开始数据传输
for (t = 0; t < 8; t++)
{
I2C2_SDA = ((txd & 0x80) >> 7);
txd <<= 1;
delay_us(4);
I2C2_SCL = 1;
delay_us(4);
I2C2_SCL = 0;
delay_us(4);
}
}
//读1个字节，ack=1时，发送ACK，ack=0，发送nACK
static uint8_t I2C2_Read_Byte(unsigned char ack)
{
unsigned char i = 0, receive = 0;
I2C2_SDA_IN();//SDA设置为输入
for (i = 0; i < 8; i++)
{
I2C2_SCL = 0;
delay_us(4);
I2C2_SCL = 1;
receive <<= 1;
if (I2C2_READ_SDA)
{
receive++;
}
delay_us(4);
}
if (!ack)
{
I2C2_NAck();//发送nACK
}
else
{
I2C2_Ack(); //发送ACK
}
return receive;
}
uint8_t i2c1_read_reg(uint8_t reg)
{
uint8_t temp = 0;
I2C1_Start();
I2C1_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C1_Wait_Ack();
I2C1_Send_Byte(reg);
I2C1_Wait_Ack();
I2C1_Start();
I2C1_Send_Byte((TCA6424A_IIC_ADDR << 1) | 1);
I2C1_Wait_Ack();
temp = I2C1_Read_Byte(0);
// IIC_NAck();//发送nACK
I2C1_Stop();
return temp;
}
uint8_t i2c2_read_reg(uint8_t reg)
{
uint8_t temp = 0;
I2C2_Start();
I2C2_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C2_Wait_Ack();
I2C2_Send_Byte(reg);
I2C2_Wait_Ack();
I2C2_Start();
I2C2_Send_Byte((TCA6424A_IIC_ADDR << 1) | 1);
I2C2_Wait_Ack();
temp = I2C2_Read_Byte(0);
// IIC_NAck();//发送nACK
I2C2_Stop();
return temp;
}
// config regsiter, 1->bit input, 0->bit output
void i2c1_conf_reg(uint8_t reg, uint8_t data)
{
I2C1_Start();
I2C1_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C1_Wait_Ack();
I2C1_Send_Byte(reg);
I2C1_Wait_Ack();
I2C1_Send_Byte(data);
I2C1_Wait_Ack();
I2C1_Stop();
}
// config regsiter, 1->bit input, 0->bit output
void i2c2_conf_reg(uint8_t reg, uint8_t data)
{
I2C2_Start();
I2C2_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C2_Wait_Ack();
I2C2_Send_Byte(reg);
I2C2_Wait_Ack();
I2C2_Send_Byte(data);
I2C2_Wait_Ack();
I2C2_Stop();
}
// state: 0 -> LED on, 1 -> LED off
void i2c1_write_pin(uint8_t reg, uint8_t read_data, uint8_t pin, uint8_t state)
{
if (state)
{
read_data |= (1 << pin);
}
else
{
read_data &= (~(1 << pin));
}
I2C1_Start();
I2C1_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C1_Wait_Ack();
I2C1_Send_Byte(reg);
I2C1_Wait_Ack();
I2C1_Send_Byte(read_data);
I2C1_Wait_Ack();
I2C1_Stop();
}
// state: 0 -> LED on, 1 -> LED off
void i2c2_write_pin(uint8_t reg, uint8_t read_data, uint8_t pin, uint8_t state)
{
if (state)
{
read_data |= (1 << pin);
}
else
{
read_data &= (~(1 << pin));
}
I2C2_Start();
I2C2_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C2_Wait_Ack();
I2C2_Send_Byte(reg);
I2C2_Wait_Ack();
I2C2_Send_Byte(read_data);
I2C2_Wait_Ack();
I2C2_Stop();
}
void i2c1_write_allpin(uint8_t reg, uint8_t w_data)
{
I2C1_Start();
I2C1_Send_Byte((TCA6424A_IIC_ADDR << 1) | 0);
I2C1_Wait_Ack();
I2C1_Send_Byte(reg);
I2C1_Wait_Ack();
I2C1_Send_Byte(w_data);
I2C1_Wait_Ack();
I2C1_Stop();
}
void tca6424a_io_init(void)
{
GPIO_SetMode(PA, BIT10, GPIO_PMD_QUASI); // SDA
SYS->ALT_MFP &= (~(1 << 12));
SYS->GPA_MFP &= (~(1 << 10));
GPIO_SetMode(PA, BIT11, GPIO_PMD_QUASI); // SCL
SYS->ALT_MFP &= (~(1 << 11));
SYS->GPA_MFP &= (~(1 << 11));
GPIO_SetMode(PD, BIT8, GPIO_PMD_OUTPUT); // RESET
SYS->GPD_MFP &= (~(1 << 8));
// I2C1_RESET = 0;
// delay_100ms(1);
I2C1_RESET = 1;
i2c1_conf_reg(TCA6424A_CONFIG_REG0, 0x00); //i0.0 - i0.7 output
i2c1_conf_reg(TCA6424A_CONFIG_REG1, 0xf0); //i1.0 - i1.3 output, i1.4 - i1.7 input
i2c1_conf_reg(TCA6424A_CONFIG_REG2, 0xff); //i2.0 - i2.7 input
i2c1_write_allpin(TCA6424A_OUTPUT_REG0, 0xC0);
i2c1_write_allpin(TCA6424A_OUTPUT_REG1, 0x0f);
}
void tca6424a_io_int_init(void)
{
GPIO_SetMode(PB, BIT12, GPIO_PMD_INPUT); // interruput
SYS->ALT_MFP &= (~(1 << 10));
SYS->GPB_MFP &= (~(1 << 12));
// pin外部是高电平，当按下时产生下降沿，松开时产生上升沿
GPIO_EnableInt(PB, BIT12, GPIO_INT_FALLING); // 双边沿采样
NVIC_EnableIRQ(GPAB_IRQn); // 设置中断
NVIC_SetPriority(GPAB_IRQn, 3);
GPIO_SET_DEBOUNCE_TIME(GPIO_DBCLKSRC_LIRC, GPIO_DBCLKSEL_64); // 设置消抖时钟
GPIO_ENABLE_DEBOUNCE(PB, BIT12); // 使能消抖
}
void tca6424a_key_init(void)
{
GPIO_SetMode(PB, BIT15, GPIO_PMD_OUTPUT); // reset
SYS->ALT_MFP &= (~(1 << 24));
SYS->GPB_MFP &= (~(1 << 15));
GPIO_SetMode(PF, BIT2, GPIO_PMD_QUASI); // sda
SYS->ALT_MFP &= (~(3 << 24));
SYS->GPF_MFP &= (~(1 << 2));
GPIO_SetMode(PF, BIT3, GPIO_PMD_QUASI); // scl
SYS->ALT_MFP &= (~(3 << 26));
SYS->GPF_MFP &= (~(1 << 3));
I2C2_RESET = 0;
delay_100ms(1);
I2C2_RESET = 1;
i2c2_conf_reg(TCA6424A_CONFIG_REG0, 0xff); // i0.0 - i0.7 input
i2c2_conf_reg(TCA6424A_CONFIG_REG1, 0x0f); // i1.0 - i1.3 input，i1.4 - i1.7 output
i2c2_conf_reg(TCA6424A_CONFIG_REG2, 0x00); // i2.0 - i2.7 output
}
void tca6424a_key_int_init(void)
{
GPIO_SetMode(PB, BIT8, GPIO_PMD_INPUT); // interruput
SYS->GPB_MFP &= (~(1 << 8));
// pin外部是高电平，当按下时产生下降沿，松开时产生上升沿
GPIO_EnableInt(PB, 8, GPIO_INT_FALLING);
NVIC_EnableIRQ(GPAB_IRQn); // 设置中断
NVIC_SetPriority(GPAB_IRQn, 3);
GPIO_SET_DEBOUNCE_TIME(GPIO_DBCLKSRC_LIRC, GPIO_DBCLKSEL_32); // 设置消抖时钟
GPIO_ENABLE_DEBOUNCE(PB, BIT8); // 使能消抖
}
void GPAB_IRQHandler(void)
{
uint8_t a = 0, b = 0;
if (GPIO_GET_INT_FLAG(PB, BIT8))
{
GPIO_CLR_INT_FLAG(PB, BIT8);
if (key_value_tca6424a[2] == 0)
{
a = i2c2_read_reg(TCA6424A_INPUT_REG0);
b = i2c2_read_reg(TCA6424A_INPUT_REG1);
if (a != 255)
{
key_value_tca6424a[0] = a;
key_value_tca6424a[2] = 1;
}
if ((b | 0xf0) != 255)
{
key_value_tca6424a[1] = b;
key_value_tca6424a[2] = 2;
}
}
}
}
void key_handler(uint8_t *data)
{
static uint8_t read_value = 0;
GPIO_DisableInt(PB, 8);
NVIC_DisableIRQ(GPAB_IRQn);
if (key_value_tca6424a[2] == 1)
{
if (IS_BIT_LOW(key_value_tca6424a[0], 5) == TCA6424A_HIGH) //menu
{
data[CLOSE_LED] ^= 1;
}
if (IS_BIT_LOW(key_value_tca6424a[0], 6) == TCA6424A_HIGH) //channel select
{
data[CHANNEL_SELECT]++;
data[MODE_SELECT] = t1.lcc6_ch[(data[1] % 7) - 1].output_mode;
data[VOLT1] = 0;//v1
data[VOLT2] = 0;//v2
data[FREQ] = 0;//freq
data[TRIGGER] = 0;//internal external
}
else if (IS_BIT_LOW(key_value_tca6424a[0], 7) == TCA6424A_HIGH) //output mode
{
read_value = t1.lcc6_ch[(data[1] % 7) - 1].output_mode;
data[MODE_SELECT] = ++read_value;
if (data[MODE_SELECT] == 4)
{
data[MODE_SELECT] = 1;
}
t1.lcc6_ch[(data[1] % 7) - 1].output_mode = data[MODE_SELECT];
data[TRIGGER] = 0;//internal
}
else if (IS_BIT_LOW(key_value_tca6424a[0], 0) == TCA6424A_HIGH) //frequence base modulate
{
if (data[MODE_SELECT] != 3)
{
data[FREQ] ^= 1;
}
else
{
data[FREQ]++;
}
data[VOLT1] = 0;//v1
data[VOLT2] = 0;//v2
}
else if (IS_BIT_LOW(key_value_tca6424a[0], 1) == TCA6424A_HIGH) //ch2 output enable/disable
{
data[CH2] ^= 1;
}
else if (IS_BIT_LOW(key_value_tca6424a[0], 2) == TCA6424A_HIGH) //ch5 output enable/disable
{
data[CH5] ^= 1;
}
else if (IS_BIT_LOW(key_value_tca6424a[0], 3) == TCA6424A_HIGH) //voltage 2
{
data[VOLT2] ^= 1; //V2
data[VOLT1] = 0;//v1
data[FREQ] = 0;//freq
volt_disp_reset = 5;
volt_disp_mutex = 0;
}
else if (IS_BIT_LOW(key_value_tca6424a[0], 4) == TCA6424A_HIGH) //trigger internal/external
{
if ((data[MODE_SELECT] % 3) == 0) //当调制模式时
{
data[TRIGGER] ^= 1; //选择内部或者外部
}
data[VOLT1] = 0;//v1
data[VOLT2] = 0;//v2
data[FREQ] = 0;//freq
}
key_led_flag = 1;
}
else if (key_value_tca6424a[2] == 2)
{
if (IS_BIT_LOW(key_value_tca6424a[1], 0) == TCA6424A_HIGH) //ch1 output enable/diable
{
data[CH1] ^= 1;
}
else if (IS_BIT_LOW(key_value_tca6424a[1], 1) == TCA6424A_HIGH) //ch4 output enable/disable
{
data[CH4] ^= 1;
}
else if (IS_BIT_LOW(key_value_tca6424a[1], 2) == TCA6424A_HIGH) //voltage 1
{
data[VOLT1] ^= 1; //V1
data[VOLT2] = 0; //V2
data[FREQ] = 0; //FREQ
volt_disp_reset = 5;
volt_disp_mutex = 0;
}
else if (IS_BIT_LOW(key_value_tca6424a[1], 3) == TCA6424A_HIGH) //ch3 output enable/disable
{
data[CH3] ^= 1;
}
key_led_flag = 2;
}
key_value_tca6424a[2] = 0;
}
void led_handler(uint8_t *in_data)
{
uint8_t temp = 0;
if (key_led_flag == 1)
{
if (in_data[CHANNEL_SELECT] % 7 == 1) //channel select
{
if (in_data[TRIGGER] == 1) //trigger internal or external
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 4, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 4, 1);
}
}
else if (in_data[CHANNEL_SELECT] % 7 == 2)
{
if (in_data[TRIGGER] == 1) //trigger internal or external
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 6, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 6, 1);
}
}
else if (in_data[CHANNEL_SELECT] % 7 == 3)
{
if (in_data[TRIGGER] == 1) //trigger internal or external
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 0, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 0, 1);
}
}
else if (in_data[CHANNEL_SELECT] % 7 == 4)
{
if (in_data[TRIGGER] == 1) //trigger internal or external
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 2, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 2, 1);
}
}
else if (in_data[CHANNEL_SELECT] % 7 == 5)
{
if (in_data[TRIGGER] == 1) //trigger internal or external
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 4, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 4, 1);
}
}
else if (in_data[CHANNEL_SELECT] % 7 == 6)
{
if (in_data[TRIGGER] == 1) //trigger internal or external
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 6, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 6, 1);
}
}
if (in_data[CH2]) //ch2->led8
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 7, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 7, 1);
}
if (in_data[CH5]) //ch5->led11
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 5, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 5, 1);
}
}
else if (key_led_flag == 2)
{
if (in_data[CH1]) //ch1->led7
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 5, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG1);
i2c2_write_pin(TCA6424A_OUTPUT_REG1, temp, 5, 1);
}
if (in_data[CH3]) //ch3->led9
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 1, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 1, 1);
}
if (in_data[CH4]) //ch4->led10
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 3, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 3, 1);
}
if (in_data[CH6])
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 7, 0);
}
else
{
temp = i2c2_read_reg(TCA6424A_OUTPUT_REG2);
i2c2_write_pin(TCA6424A_OUTPUT_REG2, temp, 7, 1);
}
}
key_led_flag = 0;
GPIO_EnableInt(PB, 8, GPIO_INT_FALLING);
NVIC_EnableIRQ(GPAB_IRQn);
GPIO_SET_DEBOUNCE_TIME(GPIO_DBCLKSRC_LIRC, GPIO_DBCLKSEL_64);
GPIO_ENABLE_DEBOUNCE(PB, BIT8);
}