Firmware changesΒΆ

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"


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 - Added redefinition of “printf” function inside include file maximPMOD.h. This is needed for build this project without any other changes to send functionality messages through Tower Expansion Board serial interface

#ifndef MAXIMPMOD_H_
#define MAXIMPMOD_H_

#include "xgpio.h"
#include "xgpio_l.h"
#include "xparameters.h"
#include "xuartlite.h"
#include "xspi_l.h"
#include "xspi.h"
#include "xiic_l.h"
#include "utilities.h"
#include <string.h>
#include <stdio.h>
#include "platform.h"
#include "math.h"

**#define printf _io_printf         <----**

#define DEFAULT_HYPERTERMINAL_UART_ID XPAR_PS7_UART_1_DEVICE_ID  //!< macro used to abstract Physical Port of Hyperterminal UART

4 - 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);     <----

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

#define ABOUT_ONE_SECOND 74067512/8   <----
//#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

6 - improved definition inside “utilities.h”, row 103, as follow

void set_seven_segment_character(u8 uchDigitNumber, u8 uchValue, u8 uchDecimalActive);
void print_seven_segment_number(float fNumber);
extern struct maximDateTime *t;  //NEEDED FOR MQX CORRECT BUILD  <----
//struct maximDateTime *t;
void print_seven_segment_time(struct maximDateTime *t);

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

                       case 12:
                               printf("Triangle Wave started\r\n");
//                                     for(j=0;j<65535;j=j+23)
                                       for(j=0;j<65535;j=j+230)     <-- new ramp definition
//                                     for(j=65535;j>=0;j=j-23)
                                       for(j=65535;j>=0;j=j-230)       <-- new ramp definition
                               nMenuState = 0;

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