Firmware changes

Changes in Pmod1_6 revision

1 - added include file MaxFuncRedefinition.h at the top of MaximPmod.c file. This file must be the first include in list.

#include "MaxFuncRedifinition.h"  <----

#include <stdio.h>
#include "platform.h"
#include "menu.h"
#include "utilities.h"
#include "maximDeviceSpecificUtilities.h"
#include "maximPMOD.h"

#define MAJOR_REVISION 1
#define MINOR_REVISION 6

2 - renamed main() function inside MaximPmod.c file with new name main_pmod().

int main_pmod()      <----
/**
* \brief       Main() function for Analog Essentials example program.
* \par         Details
*              This function sets up and initializes the FPGA and hardware, displays the root menu via
*              Hyperterminal, then dispatches inidividual demo programs for specific module based on
*              user's keypress selection.
*
* \param       None
*
* \retval      Always TRUE
*/
{
       // Variables for the main() function
       u8 uchInput=0;
       int nMenuState=0;
       int i=0;
       char tempString[256];

3 - commented function led_knight_rider inside MaximPmod.c file to obtain application fast start.

// Toggle the LEDs so that the user knows the board is awake
       XGpio_Initialize(&g_xGpioLed, XPAR_AXI_GPIO_LED_DEVICE_ID);
       XGpio_SetDataDirection(&g_xGpioLed, 1, 0x00000000); // Set the LED peripheral to outputs
//     led_knight_rider(&g_xGpioLed,2);     <----

4 - changed costant definition ABOUT_ONE_SECOND inside MaximPmod.h file as follow:

#define ABOUT_ONE_SECOND 74067512/8/3   <----
//#define ABOUT_ONE_SECOND 74067512      //!< approx 1 second delay when used as argument with function delay(numberCyclesToDelay)
// Update this if uBlaze/Zynq CPU core frequency is changed, or if the external memory timing changes.
// Although emprirically tested to 1.0000003 seconds, it is not meant to be used for precise timing purposes

5 - changed triangle wave ramp value for MAX5216 (file menu.c, row 765 anf 769)

                       case 12:
                               printf("Triangle Wave started\r\n");
                               fflush(stdout);
                               for(i=0;i<300;i++)
                               {
//                                     for(j=0;j<65535;j=j+23)
                                       for(j=0;j<65535;j=j+230)     <-- new ramp definition
                                       {
                                               max_MAX5216_set_output_voltage(g_pActiveGPIOPort,j);
                                       }
//                                     for(j=65535;j>=0;j=j-23)
                                       for(j=65535;j>=0;j=j-230)       <-- new ramp definition
                                       {
                                               max_MAX5216_set_output_voltage(g_pActiveGPIOPort,j);
                                       }
                               }
                               nMenuState = 0;
                               break;

NOTE: All these changes are tested on revision 1.6 of Maxim project files and need to be checked on further new revisions

Changes in Pmod1_6_v2 revision

(MAX11300 added)

The v2 firmware is developed in order to add evaluation capability for MAX11300 Pixi device. To make this, starting from Pmod1_6 revision, there are some changes inside main project files. You can search a comment “added for MAX11300” in order to detect major changes.

Main function modified

• file driver.c

  • xil_out32()
  • init_device()
  • __menuMAX11300() new function

• file maximPMOD.c

  • MENU_MAX11300 (added in function main_pmod())
  • changed revision message for terminal

• file menu.c

  • menu_get_direct_entry_func()
  • print_main_menu()
  • menu_MAX11300() new function. Perform all evaluation capability

bug fix

• file maximDeviceSpecificUtilities.c

  • added timeout during MAX11205 init function: if device is not connected, print error message and proceed.