--- /dev/null
+#include <math.h>
+
+#define A_PIN 12
+#define B_PIN 13
+#define C_PIN 7
+#define D_PIN 8
+#define E_PIN 9
+#define F_PIN 11
+#define G_PIN 10
+#define DP_PIN 6
+#define EN0_PIN 5
+#define EN1_PIN 4
+#define UP_PIN 3
+#define DOWN_PIN 2
+
+#define DIGITS 2
+
+int print_dec(uint16_t value);
+int print_digit(uint8_t position, uint8_t digit);
+void emulate_timer_ISR(void);
+void counter_up(void);
+void counter_down(void);
+
+const uint8_t segm_pins[8] = {A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, F_PIN, G_PIN, DP_PIN};
+const uint8_t en_pins[DIGITS] = {EN0_PIN, EN1_PIN};
+
+const uint8_t segment_map[16] =
+{
+ // A B C D E F G DP
+ 0b00000011, // 0
+ 0b10011111, // 1
+ 0b00100101, // 2
+ 0b00001101, // 3
+ 0b10011001, // 4
+ 0b01001001, // 5
+ 0b01000001, // 6
+ 0b00011111, // 7
+ 0b00000001, // 8
+ 0b00001001, // 9
+ 0b00010001, // A
+ 0b11000001, // b
+ 0b01100011, // C
+ 0b10000101, // d
+ 0b01100001, // E
+ 0b01110001 // F
+};
+
+volatile uint8_t display_value[DIGITS] = {0};
+volatile uint8_t current_digit = 0;
+volatile uint8_t counter = 0;
+
+void setup()
+{
+ uint8_t i;
+ for (i = 0; i < DIGITS; i++)
+ {
+ pinMode(en_pins[i], OUTPUT);
+ digitalWrite(en_pins[i], HIGH);
+ }
+ for (i = 0; i < 8; i++)
+ {
+ pinMode(segm_pins[i], OUTPUT);
+ digitalWrite(segm_pins[i], HIGH);
+ }
+ pinMode(UP_PIN, INPUT_PULLUP);
+ attachInterrupt(digitalPinToInterrupt(UP_PIN), counter_up, FALLING);
+ pinMode(DOWN_PIN, INPUT_PULLUP);
+ attachInterrupt(digitalPinToInterrupt(DOWN_PIN), counter_down, FALLING);
+}
+
+void loop()
+{
+ print_dec(counter);
+
+ // This is garbage, don't use it!
+ for(uint8_t i = 0; i < 10; i++)
+ {
+ delay(10);
+ emulate_timer_ISR();
+ }
+}
+
+int print_dec(uint16_t value)
+{
+ if (value > (int) pow(10, DIGITS) - 1)
+ {
+ return -1;
+ }
+
+ for (uint8_t i = 0; i < DIGITS; i++)
+ {
+ print_digit(DIGITS - 1 - i, value % 10);
+ value /= 10;
+ }
+
+ return 0;
+}
+
+int print_digit(uint8_t position, uint8_t digit)
+{
+ if (position > DIGITS - 1 || digit > 15)
+ {
+ return -1;
+ }
+
+ display_value[position] = digit;
+
+ return 0;
+}
+
+void emulate_timer_ISR(void)
+{
+ digitalWrite(en_pins[current_digit], HIGH);
+
+ current_digit++;
+ if (current_digit > DIGITS - 1)
+ {
+ current_digit = 0;
+ }
+
+ for (uint8_t i = 0; i < 8; i++)
+ {
+ digitalWrite(segm_pins[i], segment_map[display_value[current_digit]] & (128 >> i));
+ }
+
+ digitalWrite(en_pins[current_digit], LOW);
+}
+
+void counter_up(void)
+{
+ counter++;
+}
+
+void counter_down(void)
+{
+ counter--;
+}
--- /dev/null
+#include <math.h>
+
+#define SW0_PIN A0
+#define SW1_PIN A1
+#define SW2_PIN A2
+#define SW3_PIN A3
+#define SW4_PIN A4
+#define SW5_PIN A5
+#define SW6_PIN 2
+#define SW7_PIN 3
+
+#define A_PIN 12
+#define B_PIN 13
+#define C_PIN 7
+#define D_PIN 8
+#define E_PIN 9
+#define F_PIN 11
+#define G_PIN 10
+#define DP_PIN 6
+#define EN0_PIN 5
+#define EN1_PIN 4
+
+#define DIGITS 2
+
+int print_digit(uint8_t position, uint8_t digit);
+void emulate_timer_ISR(void);
+uint8_t read_sw_slow(void);
+uint8_t read_sw(void);
+
+const uint8_t segm_pins[8] = {A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, F_PIN, G_PIN, DP_PIN};
+const uint8_t en_pins[DIGITS] = {EN0_PIN, EN1_PIN};
+const uint8_t sw_pins[8] = {SW0_PIN, SW1_PIN, SW2_PIN, SW3_PIN, SW4_PIN, SW5_PIN, SW6_PIN, SW7_PIN};
+
+const uint8_t segment_map[16] =
+{
+ // A B C D E F G DP
+ 0b00000011, // 0
+ 0b10011111, // 1
+ 0b00100101, // 2
+ 0b00001101, // 3
+ 0b10011001, // 4
+ 0b01001001, // 5
+ 0b01000001, // 6
+ 0b00011111, // 7
+ 0b00000001, // 8
+ 0b00001001, // 9
+ 0b00010001, // A
+ 0b11000001, // b
+ 0b01100011, // C
+ 0b10000101, // d
+ 0b01100001, // E
+ 0b01110001 // F
+};
+
+volatile uint8_t display_value[DIGITS] = {0};
+volatile uint8_t current_digit = 0;
+
+void setup()
+{
+ uint8_t i;
+ for (i = 0; i < DIGITS; i++)
+ {
+ pinMode(en_pins[i], OUTPUT);
+ digitalWrite(en_pins[i], HIGH);
+ }
+ for (i = 0; i < 8; i++)
+ {
+ pinMode(segm_pins[i], OUTPUT);
+ digitalWrite(segm_pins[i], HIGH);
+ pinMode(sw_pins[i], INPUT_PULLUP);
+ }
+}
+
+void loop()
+{
+ uint8_t switch_val = read_sw();
+ print_digit(0, switch_val >> 4);
+ print_digit(1, switch_val & 0x0F);
+
+ // This is garbage, don't use it!
+ for(uint8_t i = 0; i < 10; i++)
+ {
+ delay(10);
+ emulate_timer_ISR();
+ }
+}
+
+int print_digit(uint8_t position, uint8_t digit)
+{
+ if (position > DIGITS - 1 || digit > 15)
+ {
+ return -1;
+ }
+
+ display_value[position] = digit;
+
+ return 0;
+}
+
+void emulate_timer_ISR(void)
+{
+ digitalWrite(en_pins[current_digit], HIGH);
+
+ current_digit++;
+ if (current_digit > DIGITS - 1)
+ {
+ current_digit = 0;
+ }
+
+ for (uint8_t i = 0; i < 8; i++)
+ {
+ digitalWrite(segm_pins[i], segment_map[display_value[current_digit]] & (128 >> i));
+ }
+
+ digitalWrite(en_pins[current_digit], LOW);
+}
+
+uint8_t read_sw_slow(void)
+{
+ uint8_t switch_value = 0;
+
+ for (uint8_t i = 0; i < 8; i++)
+ {
+ switch_value += !digitalRead(sw_pins[i]) << i;
+ }
+
+ return switch_value;
+}
+
+uint8_t read_sw(void)
+{
+ return (~PINC & 0x3F) | ((~PIND & 0x0C) << 4);
+}
+#include <math.h>\r
+\r
#define A_PIN 12\r
#define B_PIN 13\r
#define C_PIN 7\r
#define EN2_PIN 3\r
#define EN3_PIN 2\r
\r
+#define DIGITS 4\r
+\r
int print_dec(uint16_t value);\r
int print_digit(uint8_t position, uint8_t digit);\r
void emulate_timer_ISR(void);\r
\r
const uint8_t segm_pins[8] = {A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, F_PIN, G_PIN, DP_PIN};\r
-const uint8_t en_pins[4] = {EN0_PIN, EN1_PIN, EN2_PIN, EN3_PIN};\r
+const uint8_t en_pins[DIGITS] = {EN0_PIN, EN1_PIN, EN2_PIN, EN3_PIN};\r
\r
const uint8_t segment_map[16] =\r
{\r
0b01110001 // F\r
};\r
\r
-volatile uint8_t display_value[4] = {0};\r
+volatile uint8_t display_value[DIGITS] = {0};\r
volatile uint8_t current_digit = 0;\r
\r
void setup()\r
{\r
uint8_t i;\r
- for (i = 0; i < 4; i++)\r
+ for (i = 0; i < DIGITS; i++)\r
{\r
pinMode(en_pins[i], OUTPUT);\r
digitalWrite(en_pins[i], HIGH);\r
\r
void loop()\r
{\r
- for (uint16_t cnt = 9999; cnt > 0; cnt--)\r
+ for (uint16_t cnt = (int) pow(10, DIGITS) - 1; cnt > 0; cnt--)\r
{\r
print_dec(cnt);\r
\r
\r
int print_dec(uint16_t value)\r
{\r
- if (value > 9999)\r
+ if (value > (int) pow(10, DIGITS) - 1)\r
{\r
return -1;\r
}\r
\r
- for (uint8_t i = 0; i < 4; i++)\r
+ for (uint8_t i = 0; i < DIGITS; i++)\r
{\r
- print_digit(3 - i, value % 10);\r
+ print_digit(DIGITS - 1 - i, value % 10);\r
value /= 10;\r
}\r
\r
\r
int print_digit(uint8_t position, uint8_t digit)\r
{\r
- if (position > 4 || digit > 15)\r
+ if (position > DIGITS || digit > 15)\r
{\r
return -1;\r
}\r
digitalWrite(en_pins[current_digit], HIGH);\r
\r
current_digit++;\r
- if (current_digit > 3)\r
+ if (current_digit > DIGITS - 1)\r
{\r
current_digit = 0;\r
}\r
+#include <math.h>\r
+\r
#define A_PIN 12\r
#define B_PIN 13\r
#define C_PIN 7\r
#define EN2_PIN 3\r
#define EN3_PIN 2\r
\r
+#define DIGITS 4\r
+\r
int print_dec(uint16_t value);\r
int print_digit(uint8_t position, uint8_t digit);\r
void timer_init(void);\r
void gpio_init(void);\r
\r
const uint8_t segm_pins[8] = {A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, F_PIN, G_PIN, DP_PIN};\r
-const uint8_t en_pins[4] = {EN0_PIN, EN1_PIN, EN2_PIN, EN3_PIN};\r
+const uint8_t en_pins[DIGITS] = {EN0_PIN, EN1_PIN, EN2_PIN, EN3_PIN};\r
\r
const uint8_t segment_map[16] =\r
{\r
0b01110001 // F\r
};\r
\r
-volatile uint8_t display_value[4] = {0};\r
+volatile uint8_t display_value[DIGITS] = {0};\r
volatile uint8_t current_digit = 0;\r
\r
void setup()\r
\r
void loop()\r
{\r
- for (uint16_t cnt = 9999; cnt > 0; cnt--)\r
+ for (uint16_t cnt = (int) pow(10, DIGITS) - 1; cnt > 0; cnt--)\r
{\r
print_dec(cnt);\r
delay(100);\r
\r
int print_dec(uint16_t value)\r
{\r
- if (value > 9999)\r
+ if (value > (int) pow(10, DIGITS) - 1)\r
{\r
return -1;\r
}\r
\r
- for (uint8_t i = 0; i < 4; i++)\r
+ for (uint8_t i = 0; i < DIGITS; i++)\r
{\r
- print_digit(3 - i, value % 10);\r
+ print_digit(DIGITS - 1 - i, value % 10);\r
value /= 10;\r
}\r
\r
\r
int print_digit(uint8_t position, uint8_t digit)\r
{\r
- if (position > 4 || digit > 15)\r
+ if (position > DIGITS || digit > 15)\r
{\r
return -1;\r
}\r
digitalWrite(en_pins[current_digit], HIGH);\r
\r
current_digit++;\r
- if (current_digit > 3)\r
+ if (current_digit > DIGITS - 1)\r
{\r
current_digit = 0;\r
}\r
void gpio_init(void)\r
{\r
uint8_t i;\r
- for (i = 0; i < 4; i++)\r
+ for (i = 0; i < DIGITS; i++)\r
{\r
pinMode(en_pins[i], OUTPUT);\r
digitalWrite(en_pins[i], HIGH);\r
--- /dev/null
+#include <LiquidCrystal.h>
+
+#define UP_PIN 3
+#define DOWN_PIN 2
+
+#define RS_PIN 12
+#define EN_PIN 11
+#define D4_PIN 7
+#define D5_PIN 6
+#define D6_PIN 5
+#define D7_PIN 4
+
+#define COLUMNS 16
+#define ROWS 2
+
+void counter_up(void);
+void counter_down(void);
+
+LiquidCrystal lcd(RS_PIN, EN_PIN, D4_PIN, D5_PIN, D6_PIN, D7_PIN);
+volatile uint8_t counter = 0;
+
+void setup()
+{
+ lcd.begin(COLUMNS, ROWS);
+ pinMode(UP_PIN, INPUT_PULLUP);
+ attachInterrupt(digitalPinToInterrupt(UP_PIN), counter_up, FALLING);
+ pinMode(DOWN_PIN, INPUT_PULLUP);
+ attachInterrupt(digitalPinToInterrupt(DOWN_PIN), counter_down, FALLING);
+}
+
+void loop()
+{
+ lcd.setCursor(7, 0);
+ lcd.print(counter);
+}
+
+void counter_up(void)
+{
+ counter++;
+}
+
+void counter_down(void)
+{
+ counter--;
+}
projects / vmks.git / commitdiff
