About sat3_3

Hi BSTRobin, Thank you for your support. I tried implementing it based on the sample code you provided, but it didn't work. The sample code uses BMA4_I2C_ADDR_SECONDARY, but will it work with PRIMARY as well? I would like to receive any other advice. I suspected a malfunction and tried other chips, but the result was the same. I have attached the circuit diagram. Could you also check the problem with the circuit?   uint8_t reg_data, command_reg, status; uint8_t data[BMA4_ACCEL_DATA_LENGTH] = { 0 }; uint16_t lsb = 0, msb = 0; int16_t x, y, z; int8_t addr = BMA4_I2C_ADDR_PRIMARY; reg_data = i2c_single_byte_read(addr, BMA4_CHIP_ID_ADDR); DebugPrint("CHIP ID: %x\r\n", reg_data); i2c_single_byte_write(addr , BMA4_CMD_ADDR, 0xB6); delay_ms(100); reg_data = i2c_single_byte_read(addr, BMA4_CHIP_ID_ADDR); DebugPrint("CHIP ID: %x\r\n", reg_data); i2c_single_byte_write(addr , BMA4_POWER_CONF_ADDR, 0x00); delay_us(450); i2c_single_byte_write(addr , BMA4_POWER_CTRL_ADDR, 0x04); delay_us(2); reg_data = i2c_single_byte_read(addr, BMA4_STATUS_ADDR); DebugPrint("STATUS: %x\r\n", reg_data); delay_ms(500); while(1){ data[0] = i2c_single_byte_read(addr, BMA4_ACC_X_LOW); data[1] = i2c_single_byte_read(addr, BMA4_ACC_X_HIGH); data[2] = i2c_single_byte_read(addr, BMA4_ACC_Y_LOW); data[3] = i2c_single_byte_read(addr, BMA4_ACC_Y_HIGH); data[4] = i2c_single_byte_read(addr, BMA4_ACC_Z_LOW); data[5] = i2c_single_byte_read(addr, BMA4_ACC_Z_HIGH); msb = data[1]; lsb = data[0]; /* Accel data x axis */ x = (int16_t)((msb << | lsb); msb = data[3]; lsb = data[2]; /* Accel data y axis */ y = (int16_t)((msb << | lsb); msb = data[5]; lsb = data[4]; /* Accel data z axis */ z = (int16_t)((msb << | lsb); DebugPrint("data X: %d, Y: %d, Z: %d\r\n", x, y, z); delay_ms(500); }       schematic ... View more