I've been working on an SDR project for a while and got some help to get my code up to a better state and I can't seem to get it to work on my Teensy 3.2. On an Arduino Uno, it will compile but won't display anything. I can't find the issues as I'm not much of a programmer. Would you all mind looking over it and passing along some advice or pointing out possible issues?
Code:
//Libraries
#include <unistd.h>
#include <stdio.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <U8g2lib.h>
#include <SPI.h>
#include <ADF4350.h>
#include "freq_arrays.h" // include global arrays from header file
//Define ADF4350 library/hardware interface
#define PLL_LE_PIN 10 //add pin number 10 is already taken
#define CLK_PIN 11 //add pin number 11 is already taken
#define DATA_PIN 12
ADF4350 PLL(PLL_LE_PIN);
// Pinouts for lcd library - change these if rewiring display circuit
#define U8G2_CLOCK_PIN 13
#define U8G2_DATA_PIN 11
#define U8G2_CS_PIN 10
#define U8G2_DC_PIN 9
#define U8G2_RESET_PIN 8
//OLED library
U8G2_SSD1327_MIDAS_128X128_1_4W_SW_SPI u8g2(U8G2_R0, U8G2_CLOCK_PIN, U8G2_DATA_PIN, U8G2_CS_PIN, U8G2_DC_PIN, U8G2_RESET_PIN);
// Each one of these indicates 1 based index position in array of menu text items
// if these change the switch(){} statement in the loop function and the menu text
// array must be updated to reflect the changes
#define COMBINED_ACTION 1
#define WIFI_ACTION 2
#define NA_ACTION 3
#define GPS_ACTION 4
#define STOP_ACTION 5
// global variables
char* menu_title1 = "Frequencies";
char* menu_title2 = "Frequencies .....";
// TODO: sort out menu text so that a single array of strings is used for all purposes
char* menu_txt[] = {"All", "Wifi", "NA", "GPS", "STOP"};
char* menu_txt_str1 = "All\nWifi\nNA\nGPS\nSTOP";
char* menu_txt_str2 = "All\nWifi\nNA\nGPS";
boolean WORKING = false;
int J_ACTION = STOP_ACTION;
int last_menu_selection = STOP_ACTION;
int menu_selection = STOP_ACTION;
int user_selection = 0;
int timer1_counter = 0;
int array_size = 0;
volatile int array_pos = 0;
void setup () {
//Define Button(menu) library/hardware interface
u8g2.begin(/*Select=*/ 6, /*Right/Next=*/ U8X8_PIN_NONE, /*Left/Prev=*/ U8X8_PIN_NONE, /*Up=*/ 4, /*Down=*/ 3, /*Home/Cancel=*/ U8X8_PIN_NONE);
//Define Font size
u8g2.setFont(u8g2_font_6x12_tr);
// Set timer1_counter to the correct value for our interrupt interval
// NOTE: Timer 1 is a 16 bit timer, max value is 65536
// firing interrupt every 50ms === 200Hz interrupt rate
// timer = 65536 - ( (16MHz/256) / 200Hz)
// = 65536 - (62500 / 200)
// = 65536 - 312.5
timer1_counter = 65223; // rounded up
// Pretty standard interrupt code,
// setup and ISR copied from [URL]https://www.robotshop.com/letsmakerobots/arduino-101-timers-and-interrupts[/URL]
// initialize timer1
noInterrupts(); // disable all interrupts
TCCR1A = 0;
TCCR1B = 0;
TCNT1 = 0;
OCR1A = timer1_counter; // compare match register with timer1_counter
TCCR1B |= (1 << WGM12); // CTC mode
TCCR1B |= (1 << CS12); // 256 prescaler
TIMSK1 |= (1 << OCIE1A); // enable timer compare interrupt
interrupts(); // enable all interrupts
// enable PLL output
// Q: should this be here?
PLL.rfEnable(1); //Sets the ADF4350 to enable output
}
void loop() {
// display menu, wait for input
user_selection = get_menu_choice();
// only act on menu choices if they are not same as last choice
if (user_selection != last_menu_selection) {
stop_action();
menu_selection = user_selection;
// setup array sizes
switch (menu_selection) {
case COMBINED_ACTION:
array_size = sizeof(COMBINED_ARRAY); //Gives the number of the last element in the array
break;
case WIFI_ACTION:
array_size = sizeof(WIFI_ARRAY); //Gives the number of the last element in the array
break;
case NA_ACTION:
array_size = sizeof(NA_ARRAY); //Gives the number of the last element in the array
break;
case GPS_ACTION:
array_size = sizeof(GPS_ARRAY); //Gives the number of the last element in the array
break;
default:
array_size = 0;
break;
}
// only start if menu choice indicates jamming action chosen
if (menu_selection != STOP_ACTION) {
// give user some feedback
user_selection = display_menu_action(menu_selection);
// user canceled action
if (user_selection == 0) {
stop_action();
} else {
start_action(menu_selection);
}
}
// store last selection so we can show it as part of STOP menu choice
last_menu_selection = menu_selection;
}
}
int get_menu_choice() {
//Logic for menu choices
int selection = 0;
/*
char buf[30];
const char *first = "sent ";
const char *second = "message";
strcpy(buf,first);
strcat(buf,second);
*/
if (WORKING) {
// 5 periods indictes ACTION is active
// TODO: animate periods, scroll txt, etc. to show ACTION is active
// include STOP choice
selection = u8g2.userInterfaceSelectionList(menu_title1, 1, menu_txt_str1);
} else {
// do not include stop
selection = u8g2.userInterfaceSelectionList(menu_title2, 1, menu_txt_str2);
}
return (selection);
}
// Give the user some feedback and allow to confirm/cancel the action
int display_menu_action(int menu_selection) {
int ret_val = 0;
ret_val = u8g2.userInterfaceMessage("Start Action", menu_txt[menu_selection -1]," ", " Ok \n Cancel ");
return (ret_val);
}
// Start WORKING
void start_action (int action) {
array_pos = 0;
J_ACTION = action;
WORKING = true;
// enable PLL output
PLL.rfEnable(0);
interrupts(); // enable all interrupts
}
// Stop WORKING
void stop_action () {
noInterrupts(); // disable all interrupts
// enable PLL output
PLL.rfEnable(1);
J_ACTION = STOP_ACTION;
WORKING = false;
array_pos = 0;
}
// Interrupt code
//
ISR(TIMER1_COMPA_vect) { // timer compare interrupt service routine
// check which frequency array is being used and continue sweeping
// though frequencies
switch (J_ACTION) {
case COMBINED_ACTION:
combined_array_loop();
break;
case WIFI_ACTION:
wifi_array_loop();
break;
case NA_ACTION:
na_array_loop();
break;
case GPS_ACTION:
gps_array_loop();
break;
case STOP_ACTION:
break;
default:
// statements
break;
}
//Checks if the current array index is the last, if so, it resets to the first index position,
// otherwise it increments index counter
if (array_pos >= (array_size - 1) ) {
array_pos = 0;
} else {
array_pos++;
}
}
//actual working loops
void combined_array_loop() {
PLL.setFreq(pgm_read_word(&COMBINED_ARRAY[array_pos])); //Feeds the frequency to the ADF4350
}
void wifi_array_loop() {
PLL.setFreq(pgm_read_word(&WIFI_ARRAY[array_pos])); //Feeds the frequency to the ADF4350
}
void na_array_loop() {
PLL.setFreq(pgm_read_word(&NA_ARRAY[array_pos])); //Feeds the frequency to the ADF4350
}
void gps_array_loop() {
PLL.setFreq(pgm_read_word(&GPS_ARRAY[array_pos])); //Feeds the frequency to the ADF4350
}
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