/M5Unit-EXTIO2-Internal-FW

Primary LanguageCMIT LicenseMIT

M5Unit-EXTIO2-Internal-FW

Register

  • I2C ADDR: 0x45

protocol_01

MODE CONFING

REG DESC LEN R/W
0x00 MODE_CH_1 1 BYTE R/W
0x01 MODE_CH_2 1 BYTE R/W
0x02 MODE_CH_3 1 BYTE R/W
0x03 MODE_CH_4 1 BYTE R/W
0x04 MODE_CH_5 1 BYTE R/W
0x05 MODE_CH_6 1 BYTE R/W
0x06 MODE_CH_7 1 BYTE R/W
0x07 MODE_CH_8 1 BYTE R/W
  • Value:
DIGITAL_INPUT_MODE=0 
DIGITAL_OUTPUT_MODE=1 
ADC_INPUT_MODE=2
SERVO_CTL_MODE=3 
RGB_LED_MODE=4
PWM_MODE=5

DIGITAL INPUT/OUTPUT

REG DESC LEN R/W
0x10 OUTPUT_CTL_REG_CH_1 1 BYTE W
0x11 OUTPUT_CTL_REG_CH_2 1 BYTE W
0x12 OUTPUT_CTL_REG_CH_3 1 BYTE W
0x13 OUTPUT_CTL_REG_CH_4 1 BYTE W
0x14 OUTPUT_CTL_REG_CH_5 1 BYTE W
0x15 OUTPUT_CTL_REG_CH_6 1 BYTE W
0x16 OUTPUT_CTL_REG_CH_7 1 BYTE W
0x17 OUTPUT_CTL_REG_CH_8 1 BYTE W
0x20 DIGITAL_INPUT_REG_CH_1 1 BYTE R
0x21 DIGITAL_INPUT_REG_CH_2 1 BYTE R
0x22 DIGITAL_INPUT_REG_CH_3 1 BYTE R
0x23 DIGITAL_INPUT_REG_CH_4 1 BYTE R
0x24 DIGITAL_INPUT_REG_CH_5 1 BYTE R
0x25 DIGITAL_INPUT_REG_CH_6 1 BYTE R
0x26 DIGITAL_INPUT_REG_CH_7 1 BYTE R
0x27 DIGITAL_INPUT_REG_CH_8 1 BYTE R
  • Value:
HIGH:1 / LOW:0

8B ANALOG INPUT

REG DESC LEN R/W
0x30 ANALOG_INPUT_8B_REG_CH_1
Value: 0-255		 1 BYTE R
0x31 ANALOG_INPUT_8B_REG_CH_2
Value: 0-255		 1 BYTE R
0x32 ANALOG_INPUT_8B_REG_CH_3
Value: 0-255		 1 BYTE R
0x33 ANALOG_INPUT_8B_REG_CH_4
Value: 0-255		 1 BYTE R
0x34 ANALOG_INPUT_8B_REG_CH_5
Value: 0-255		 1 BYTE R
0x35 ANALOG_INPUT_8B_REG_CH_6
Value: 0-255		 1 BYTE R
0x36 ANALOG_INPUT_8B_REG_CH_7
Value: 0-255		 1 BYTE R
0x37 ANALOG_INPUT_8B_REG_CH_8
Value: 0-255		 1 BYTE R

12B ANALOG INPUT

REG DESC LEN R/W
0x40 ANALOG_INPUT_12B_REG_CH_1
Value: 0-4095		 2 BYTE R
0x42 ANALOG_INPUT_12B_REG_CH_2
Value: 0-4095		 2 BYTE R
0x44 ANALOG_INPUT_12B_REG_CH_3
Value: 0-4095		 2 BYTE R
0x46 ANALOG_INPUT_12B_REG_CH_4
Value: 0-4095		 2 BYTE R
0x48 ANALOG_INPUT_12B_REG_CH_5
Value: 0-4095		 2 BYTE R
0x4A ANALOG_INPUT_12B_REG_CH_6
Value: 0-4095		 2 BYTE R
0x4C ANALOG_INPUT_12B_REG_CH_7
Value: 0-4095		 2 BYTE R
0x4E ANALOG_INPUT_12B_REG_CH_8
Value: 0-4095		 2 BYTE R

SERVO ANGLE CTL

REG DESC LEN R/W
0x50 SERVO_ANGLE_8B_REG_CH_1
Value: 0-180deg		 1 BYTE R/W
0x51 SERVO_ANGLE_8B_REG_CH_2
Value: 0-180deg		 1 BYTE R/W
0x52 SERVO_ANGLE_8B_REG_CH_3
Value: 0-180deg		 1 BYTE R/W
0x53 SERVO_ANGLE_8B_REG_CH_4
Value: 0-180deg		 1 BYTE R/W
0x54 SERVO_ANGLE_8B_REG_CH_5
Value: 0-180deg		 1 BYTE R/W
0x55 SERVO_ANGLE_8B_REG_CH_6
Value: 0-180deg		 1 BYTE R/W
0x56 SERVO_ANGLE_8B_REG_CH_7
Value: 0-180deg		 1 BYTE R/W
0x57 SERVO_ANGLE_8B_REG_CH_8
Value: 0-180deg		 1 BYTE R/W

SERVO PULSE CTL

REG DESC LEN R/W
0x60 SERVO_PULSE_16B_REG_CH_1
Value: 500-2500us		 2 BYTE R/W
0x62 SERVO_PULSE_16B_REG_CH_2
Value: 500-2500us		 2 BYTE R/W
0x64 SERVO_PULSE_16B_REG_CH_3
Value: 500-2500us		 2 BYTE R/W
0x66 SERVO_PULSE_16B_REG_CH_4
Value: 500-2500us		 2 BYTE R/W
0x68 SERVO_PULSE_16B_REG_CH_5
Value: 500-2500us		 2 BYTE R/W
0x6A SERVO_PULSE_16B_REG_CH_6
Value: 500-2500us		 2 BYTE R/W
0x6C SERVO_PULSE_16B_REG_CH_7
Value: 500-2500us		 2 BYTE R/W
0x6E SERVO_PULSE_16B_REG_CH_8
Value: 500-2500us		 2 BYTE R/W

RGB LED CTL

REG DESC LEN R/W
0x70 RGB_24B_REG_CH_1：RGB 888 3 BYTE R/W
0x73 RGB_24B_REG_CH_2：RGB 888 3 BYTE R/W
0x76 RGB_24B_REG_CH_3：RGB 888 3 BYTE R/W
0x79 RGB_24B_REG_CH_4：RGB 888 3 BYTE R/W
0x7C RGB_24B_REG_CH_5：RGB 888 3 BYTE R/W
0x7F RGB_24B_REG_CH_6：RGB 888 3 BYTE R/W
0x82 RGB_24B_REG_CH_7：RGB 888 3 BYTE R/W
0x85 RGB_24B_REG_CH_8：RGB 888 3 BYTE R/W

PWM DUTYCYCLE CTL

REG DESC LEN R/W
0x90 PWM_DUTYCUCLE_REG_CH_1
Value: 0-100		 2 BYTE R/W
0x91 PWM_DUTYCUCLE_REG_CH_2
Value: 0-100		 2 BYTE R/W
0x92 PWM_DUTYCUCLE_REG_CH_3
Value: 0-100		 2 BYTE R/W
0x93 PWM_DUTYCUCLE_REG_CH_4
Value: 0-100		 2 BYTE R/W
0x94 PWM_DUTYCUCLE_REG_CH_5
Value: 0-100		 2 BYTE R/W
0x95 PWM_DUTYCUCLE_REG_CH_6
Value: 0-100		 2 BYTE R/W
0x96 PWM_DUTYCUCLE_REG_CH_7
Value: 0-100		 2 BYTE R/W
0x97 PWM_DUTYCUCLE_REG_CH_8
Value: 0-100		 2 BYTE R/W

PWM FREQUENCY CTL

REG DESC LEN R/W
0xA0 PWM_FREQUENCY_REG
Value: 0-4		 1 BYTE R/W

?>Note: Do not write to the I2C address configuration register repeatedly at high frequency.

CONFIG

REG DESC LEN R/W
0xFE FW VERSION 1 BYTE R
0xFF I2C ADDR CONFIG (warn: Repeated writing may cause partition damage) 1 BYTE R/W

Firmware Version History

  • V3:
    • Migrated development environment to STM32CubeIDE.
    • Added PWM Mode support with extended configuration registers (PWM duty cycle & frequency control).
    • Added I2C IAP (In-Application Programming) functionality for firmware upgrades via I2C interface.