Misaki
95 lines
5.3 KiB
C
95 lines
5.3 KiB
C
#include "TCA9554PWR.h"
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/***************************************************** Operation register REG ****************************************************/
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uint8_t Read_REG(uint8_t REG) // Read the value of the TCA9554PWR register REG
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{
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uint8_t bitsStatus = 0;
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (TCA9554_ADDRESS << 1) | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(cmd, REG, true);
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (TCA9554_ADDRESS << 1) | I2C_MASTER_READ, true);
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i2c_master_read_byte(cmd, &bitsStatus, I2C_MASTER_NACK);
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i2c_master_stop(cmd);
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i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(cmd);
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return bitsStatus;
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}
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void Write_REG(uint8_t REG,uint8_t Data) // Write Data to the REG register of the TCA9554PWR
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{
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, (TCA9554_ADDRESS << 1) | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(cmd, REG, true);
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i2c_master_write_byte(cmd, Data, true);
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i2c_master_stop(cmd);
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i2c_master_cmd_begin(I2C_MASTER_NUM,cmd,I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(cmd);
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}
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/********************************************************** Set EXIO mode **********************************************************/
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void Mode_EXIO(uint8_t Pin,uint8_t State) // Set the mode of the TCA9554PWR Pin. The default is Output mode (output mode or input mode). State: 0= Output mode 1= input mode
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{
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uint8_t bitsStatus = Read_REG(TCA9554_CONFIG_REG);
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uint8_t Data = (0x01 << (Pin-1)) | bitsStatus;
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Write_REG(TCA9554_CONFIG_REG,Data);
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}
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void Mode_EXIOS(uint8_t PinState) // Set the mode of the 7 pins from the TCA9554PWR with PinState
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{
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Write_REG(TCA9554_CONFIG_REG,PinState);
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}
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/********************************************************** Read EXIO status **********************************************************/
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uint8_t Read_EXIO(uint8_t Pin) // Read the level of the TCA9554PWR Pin
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{
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uint8_t inputBits =Read_REG(TCA9554_INPUT_REG);
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uint8_t bitStatus = (inputBits >> (Pin-1)) & 0x01;
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return bitStatus;
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}
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uint8_t Read_EXIOS(void) // Read the level of all pins of TCA9554PWR
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{
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uint8_t inputBits = Read_REG(TCA9554_INPUT_REG);
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return inputBits;
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}
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/********************************************************** Set the EXIO output status **********************************************************/
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void Set_EXIO(uint8_t Pin,bool State) // Sets the level state of the Pin without affecting the other pins(PIN：1~8)
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{
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uint8_t Data = 0;
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uint8_t bitsStatus = Read_REG(TCA9554_OUTPUT_REG);
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if(Pin < 9 && Pin > 0){
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if(State)
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Data = (0x01 << (Pin-1)) | bitsStatus;
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else
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Data = (~(0x01 << (Pin-1)) & bitsStatus);
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Write_REG(TCA9554_OUTPUT_REG,Data);
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}
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else
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printf("Parameter error, please enter the correct parameter!\r\n");
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}
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void Set_EXIOS(uint8_t PinState) // Set 7 pins to the PinState state such as :PinState=0x23, 0010 0011 state (the highest bit is not used)
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{
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Write_REG(TCA9554_OUTPUT_REG,PinState);
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}
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/********************************************************** Flip EXIO state **********************************************************/
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void Set_Toggle(uint8_t Pin) // Flip the level of the TCA9554PWR Pin
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{
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uint8_t bitsStatus = Read_EXIO(Pin);
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Set_EXIO(Pin,(bool)!bitsStatus);
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}
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/********************************************************* TCA9554PWR Initializes the device ***********************************************************/
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void TCA9554PWR_Init(uint8_t PinState) // Set the seven pins to PinState state, for example :PinState=0x23, 0010 0011 State (the highest bit is not used) (Output mode or input mode) 0= Output mode 1= Input mode. The default value is output mode
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{
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// i2c_master_init();
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Mode_EXIOS(PinState);
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}
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esp_err_t EXIO_Init(void)
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{
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TCA9554PWR_Init(0x00);
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return ESP_OK;
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}
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