module I2C_to_GPIO 
( 
   hps_sda_i,
   hps_sda_o_e,
   hps_sclk,
   gpio_input, 
   gpio_output, 
   write_pulse,
   exp_input,
   exp_output,
   dc_pwren,                                            
   state                                                 // added to toggle the hps_sda_o_e output
);
---
output hps_sda_o_e;                        // Output enable HPS_SDA= '0' when '0'
output [7:0] state = 8'h00;                        // debug

---
reg hps_sda_oe = 1'b0;                                // set default value
reg [7:0] state = 8'h00;                        // debug