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updated mains macros

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This commit is contained in:
hugo LAMY
2025-03-06 10:26:39 +01:00
parent 3271fbf96d
commit 4a9fe6cd95
6 changed files with 254 additions and 242 deletions
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139
module00/ex02/main.c
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@@ -1,101 +1,66 @@
#include <avr/io.h> #include <avr/io.h>
#include <util/delay.h>
// test with https://www.onlinegdb.com/online_c_compiler // stringify
// // V1 #define STRINGIFY_HELPER(x) #x
// #define STRINGIFY(x) STRINGIFY_HELPER(x)
// // macro to extract port and bit from a single pin
// #define _PORT(pin) ((pin) >> 3)
// #define _BIT(pin) ((pin) & 0x07) // 0x07 is 00000111
//
// // helper macros for port name concatenation
// #define _CONCAT(a, b) a ## b
// #define PORT_REGISTER(pin) _CONCAT(PORT, _PORT(pin))
// #define DDR_REGISTER(pin) _CONCAT(DDR, _PORT(pin))
// #define PIN_REGISTER(pin) _CONCAT(PIN, _PORT(pin))
//
// // Macros to set/clear/toggle specific bit
// #define SET(REGISTER, PIN) REGISTER |= 1 << _BIT(PIN)
// #define CLEAR(REGISTER, PIN) REGISTER &= ~(1 << _BIT(PIN))
// #define TOGGLE(REGISTER, PIN) REGISTER ^= 1 << _BIT(PIN)
// #define MODE_OUTPUT(PIN) (DDR_REGISTER(PIN) |= 1 << _BIT(PIN))
// #define MODE_INPUT(PIN) (DDR_REGISTER(PIN) &= ~(1 << _BIT(PIN)))
//
// // Test and check macros
// #define TEST_PIN(PIN) (PIN_REGISTER(PIN) & (1 << _BIT(PIN)))
// #define IS_SET(PIN) (TEST(PIN) != 0)
// #define IS_CLEAR(PIN) (TEST(PIN) == 0)
//
// // Pin definitions
// #define D1 (0 + (1 << 3)) // Port B, bit 0
// #define D2 (1 + (1 << 3)) // Port B, bit 1
// #define D3 (2 + (1 << 3)) // Port B, bit 2
// #define D4 (4 + (1 << 3)) // Port B, bit 4
// #define SW1 (2 + (3 << 3)) // Port D, bit 2
// #define SW2 (4 + (3 << 3)) // Port D, bit 4
// // V2 // concatenate
// #define CONCAT_HELPER(x, y) x ## y
// // Define the ports #define CONCAT(x, y) CONCAT_HELPER(x, y)
// #define PORT_B 0 // Port A (represented by 0)
// #define PORT_C 1 // Port B (represented by 1)
// #define PORT_D 2 // Port C (represented by 2)
//
// // Macros to extract the port and bit
// #define _PORT_INT(pin) ((pin) >> 3) // Extract the port
// #define _PORT(pin) \
// ((_PORT_INT(pin)) == PORT_B ? 'B' : \
// ((_PORT_INT(pin)) == PORT_C ? 'C' : \
// ((_PORT_INT(pin)) == PORT_D ? 'D' : \
// 'X')))
// #define _BIT(pin) ((pin) & 0x07) // Extract the bit
//
// // Macros to set/clear/toggle specific bit
// #define SET(REGISTER, PIN) REGISTER |= 1 << _BIT(PIN)
// #define CLEAR(REGISTER, PIN) REGISTER &= ~(1 << _BIT(PIN))
// #define TOGGLE(REGISTER, PIN) REGISTER ^= 1 << _BIT(PIN)
// #define MODE_OUTPUT(PIN) (_PORT(PIN) |= 1 << _BIT(PIN))
// #define MODE_INPUT(PIN) (_PORT(PIN) &= ~(1 << _BIT(PIN)))
//
// // Test and check macros
// #define TEST(PIN) (PIN_REGISTER(PIN) & (1 << _BIT(PIN)))
// #define IS_SET(PIN) (TEST(PIN) != 0)
// #define IS_CLEAR(PIN) (TEST(PIN) == 0)
//
// // Define each LED's port and bit using macros
// #define D1 (PORT_B << 3 | 0) // LED1 is on Port B, bit 0
// #define D2 (PORT_B << 3 | 1) // LED2 is on Port A, bit 1
// #define D3 (PORT_B << 3 | 2) // LED3 is on Port C, bit 2
// #define D4 (PORT_B << 3 | 4) // LED4 is on Port C, bit 4
// V0 // get argument
#define ARG_1(v1, v2) v1
#define ARG_2(v1, v2) v2
#define GET_PORT(args) ARG_1 args
#define GET_BIT(args) ARG_2 args
#define SET(REGISTER, BIT) REGISTER |= 1 << BIT // actions on registers
#define CLEAR(REGISTER, BIT) REGISTER &= ~(1 << BIT) #define SET(register, bit) register |= 1 << bit
#define TEST(REGISTER, BIT) REGISTER & 1 << BIT #define CLEAR(register, bit) register &= ~(1 << bit)
#define TEST_PIN(PORT, BIT) PIN ## PORT & 1 << BIT #define TEST(register, bit) register & 1 << bit
#define TOGGLE(REGISTER, BIT) REGISTER ^= 1 << BIT #define TOGGLE(register, bit) register ^= 1 << bit
#define MODE_INPUT(PORT, BIT) CLEAR(DDR ## PORT, BIT)
#define MODE_OUTPUT(PORT, BIT) SET(DDR ## PORT, BIT)
#define IS_PIN_SET(PORT, BIT) (TEST_PIN(PORT, BIT)) == 0
#define IS_PIN_CLEAR(PORT, BIT) (TEST_PIN(PORT, BIT)) == 1
#define D1 0 // actions on elements
#define D2 1 #define SET_ELEM(elem) SET(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define D3 2 #define CLEAR_ELEM(elem) CLEAR(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define D4 4 #define TEST_ELEM(elem) TEST(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define SW1 2 #define TOGGLE_ELEM(elem) TOGGLE(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define SW2 4 #define MODE_OUTPUT(elem) SET(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// bits
#define D1 0
#define D2 1
#define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// elements (port, bit)
#define LED1 (B, D1)
#define LED2 (B, D2)
#define LED3 (B, D3)
#define LED4 (B, D4)
#define BUTTON1 (D, SW1)
#define BUTTON2 (D, SW2)
#define BUTTON(id)
// END MACROS
int main() int main()
{ {
MODE_OUTPUT(B, D1); MODE_OUTPUT(LED1);
MODE_INPUT(D, SW1); MODE_INPUT(BUTTON1);
while(1) { while(1) {
if (IS_PIN_SET(D, SW1)) { if (IS_PIN_SET(BUTTON1)) {
SET(PORTB, D1); SET_ELEM(LED1);
} else { } else {
CLEAR(PORTB, D1); CLEAR_ELEM(LED1);
} }
} }
return 0; return 0;

76
module00/ex03/main.c
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@@ -1,32 +1,66 @@
#include <avr/io.h> #include <avr/io.h>
#include <util/delay.h> #include <util/delay.h>
#define SET(REGISTER, BIT) REGISTER |= 1 << BIT // stringify
#define CLEAR(REGISTER, BIT) REGISTER &= ~(1 << BIT) #define STRINGIFY_HELPER(x) #x
#define TEST(REGISTER, BIT) REGISTER & 1 << BIT #define STRINGIFY(x) STRINGIFY_HELPER(x)
#define TEST_PIN(PORT, BIT) PIN ## PORT & 1 << BIT
#define TOGGLE(REGISTER, BIT) REGISTER ^= 1 << BIT
#define TOGGLE_PIN(PORT, BIT) PIN ## PORT |= 1 << BIT
#define MODE_INPUT(PORT, BIT) CLEAR(DDR ## PORT, BIT)
#define MODE_OUTPUT(PORT, BIT) SET(DDR ## PORT, BIT)
#define IS_PIN_SET(PORT, BIT) (TEST_PIN(PORT, BIT)) == 0
#define IS_PIN_CLEAR(PORT, BIT) (TEST_PIN(PORT, BIT)) == 1
#define D1 0 // concatenate
#define D2 1 #define CONCAT_HELPER(x, y) x ## y
#define D3 2 #define CONCAT(x, y) CONCAT_HELPER(x, y)
#define D4 4
#define SW1 2 // get argument
#define SW2 4 #define ARG_1(v1, v2) v1
#define ARG_2(v1, v2) v2
#define GET_PORT(args) ARG_1 args
#define GET_BIT(args) ARG_2 args
// actions on registers
#define SET(register, bit) register |= 1 << bit
#define CLEAR(register, bit) register &= ~(1 << bit)
#define TEST(register, bit) register & 1 << bit
#define TOGGLE(register, bit) register ^= 1 << bit
// actions on elements
#define SET_ELEM(elem) SET(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define CLEAR_ELEM(elem) CLEAR(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TEST_ELEM(elem) TEST(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_ELEM(elem) TOGGLE(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_OUTPUT(elem) SET(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// bits
#define D1 0
#define D2 1
#define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// elements (port, bit)
#define LED1 (B, D1)
#define LED2 (B, D2)
#define LED3 (B, D3)
#define LED4 (B, D4)
#define BUTTON1 (D, SW1)
#define BUTTON2 (D, SW2)
#define BUTTON(id)
// END MACROS
int main() { int main() {
MODE_OUTPUT(B, D1); MODE_OUTPUT(LED1);
MODE_INPUT(D, SW1); MODE_INPUT(BUTTON1);
while(1) { while(1) {
if (IS_PIN_SET(D, SW1)) { if (IS_PIN_SET(BUTTON1)) {
TOGGLE_PIN(B, D1); TOGGLE_PIN(LED1);
_delay_ms(20); _delay_ms(20);
while(IS_PIN_SET(D, SW1)) { while(IS_PIN_SET(BUTTON1)) {
continue; continue;
} }
_delay_ms(20); _delay_ms(20);

82
module00/ex04/main.c
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@@ -1,23 +1,57 @@
#include <avr/io.h> #include <avr/io.h>
#include <util/delay.h> #include <util/delay.h>
#define SET(REGISTER, BIT) REGISTER |= 1 << BIT // stringify
#define CLEAR(REGISTER, BIT) REGISTER &= ~(1 << BIT) #define STRINGIFY_HELPER(x) #x
#define TEST(REGISTER, BIT) REGISTER & 1 << BIT #define STRINGIFY(x) STRINGIFY_HELPER(x)
#define TEST_PIN(PORT, BIT) PIN ## PORT & 1 << BIT
#define TOGGLE(REGISTER, BIT) REGISTER ^= 1 << BIT
#define TOGGLE_PIN(PORT, BIT) PIN ## PORT |= 1 << BIT
#define MODE_INPUT(PORT, BIT) CLEAR(DDR ## PORT, BIT)
#define MODE_OUTPUT(PORT, BIT) SET(DDR ## PORT, BIT)
#define IS_PIN_SET(PORT, BIT) (TEST_PIN(PORT, BIT)) == 0
#define IS_PIN_CLEAR(PORT, BIT) (TEST_PIN(PORT, BIT)) == 1
#define D1 0 // concatenate
#define D2 1 #define CONCAT_HELPER(x, y) x ## y
#define D3 2 #define CONCAT(x, y) CONCAT_HELPER(x, y)
#define D4 4
#define SW1 2 // get argument
#define SW2 4 #define ARG_1(v1, v2) v1
#define ARG_2(v1, v2) v2
#define GET_PORT(args) ARG_1 args
#define GET_BIT(args) ARG_2 args
// actions on registers
#define SET(register, bit) register |= 1 << bit
#define CLEAR(register, bit) register &= ~(1 << bit)
#define TEST(register, bit) register & 1 << bit
#define TOGGLE(register, bit) register ^= 1 << bit
// actions on elements
#define SET_ELEM(elem) SET(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define CLEAR_ELEM(elem) CLEAR(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TEST_ELEM(elem) TEST(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_ELEM(elem) TOGGLE(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_OUTPUT(elem) SET(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// bits
#define D1 0
#define D2 1
#define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// elements (port, bit)
#define LED1 (B, D1)
#define LED2 (B, D2)
#define LED3 (B, D3)
#define LED4 (B, D4)
#define BUTTON1 (D, SW1)
#define BUTTON2 (D, SW2)
#define BUTTON(id)
// END MACROS
typedef struct { typedef struct {
int *value; int *value;
@@ -57,10 +91,10 @@ void decrement_led(void *param) {
} }
void on_press(int bit, void (*action)(void*), void *params) { void on_press(int bit, void (*action)(void*), void *params) {
if (IS_PIN_SET(D, bit)) { if ((TEST(PIND, bit)) == 0) {
action(params); action(params);
_delay_ms(20); _delay_ms(20);
while (IS_PIN_SET(D, bit)) { while ((TEST(PIND, bit)) == 0) {
continue; continue;
} }
_delay_ms(20); _delay_ms(20);
@@ -68,12 +102,12 @@ void on_press(int bit, void (*action)(void*), void *params) {
} }
int main() { int main() {
MODE_OUTPUT(B, D1); MODE_OUTPUT(LED1);
MODE_OUTPUT(B, D2); MODE_OUTPUT(LED2);
MODE_OUTPUT(B, D3); MODE_OUTPUT(LED3);
MODE_OUTPUT(B, D4); MODE_OUTPUT(LED4);
MODE_INPUT(D, SW1); MODE_INPUT(BUTTON1);
MODE_INPUT(D, SW2); MODE_INPUT(BUTTON2);
int value = 0; int value = 0;
int max = 15; int max = 15;

71
module01/ex00/main.c
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@@ -1,37 +1,52 @@
#include <avr/io.h> #include <avr/io.h>
// #define FIRST_LETTER_IMPL(x) #x[0] // stringify
// #define FIRST_LETTER(x) FIRST_LETTER_IMPL(x) #define STRINGIFY_HELPER(x) #x
// #define PORT_LETTER(PIN) FIRST_LETTER(PIN) #define STRINGIFY(x) STRINGIFY_HELPER(x)
// global registers // concatenate
#define CONCAT_HELPER(x, y) x ## y
#define CONCAT(x, y) CONCAT_HELPER(x, y)
// get argument
#define ARG_1(v1, v2) v1
#define ARG_2(v1, v2) v2
#define GET_PORT(args) ARG_1 args
#define GET_BIT(args) ARG_2 args
// actions on registers
#define SET(register, bit) register |= 1 << bit #define SET(register, bit) register |= 1 << bit
#define CLEAR(register, bit) register &= ~(1 << bit) #define CLEAR(register, bit) register &= ~(1 << bit)
#define TEST(register, bit) register & 1 << bit #define TEST(register, bit) register & 1 << bit
#define TOGGLE(register, bit) register ^= 1 << bit #define TOGGLE(register, bit) register ^= 1 << bit
// actions on ports // actions on elements
#define TEST_PIN(port, bit) TEST(PIN ## port, bit) #define SET_ELEM(elem) SET(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(port, bit) SET(PIN ## port, bit) #define CLEAR_ELEM(elem) CLEAR(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_INPUT(port, bit) CLEAR(DDR ## port, bit) #define TEST_ELEM(elem) TEST(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_OUTPUT(port, bit) SET(DDR ## port, bit) #define TOGGLE_ELEM(elem) TOGGLE(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define IS_PIN_SET(port, bit) (TEST_PIN(port, bit)) == 0 #define MODE_OUTPUT(elem) SET(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define IS_PIN_CLEAR(port, bit) (TEST_PIN(port, bit)) == 1 #define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TURN_ON(_PORT, BIT) SET(PORT ## _PORT, BIT) #define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TURN_OFF(_PORT, BIT) CLEAR(PORT ## _PORT, BIT) #define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// LEDs // bits
#define TURN_ON_LED(bit) SET(PORTB, bit) #define D1 0
#define TURN_OFF_LED(bit) CLEAR(PORTB, bit) #define D2 1
#define TOGGLE_LED(led) TOGGLE_PIN(B, led) #define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// ELEMENTS // elements (port, bit)
#define D1 0 #define LED1 (B, D1)
#define D2 1 #define LED2 (B, D2)
#define D3 2 #define LED3 (B, D3)
#define D4 4 #define LED4 (B, D4)
#define SW1 2 #define BUTTON1 (D, SW1)
#define SW2 4 #define BUTTON2 (D, SW2)
// TIME // TIME
#define PRESCALE_VALUE 1024 #define PRESCALE_VALUE 1024
@@ -48,9 +63,11 @@
#endif #endif
#define TIME_MS(ms) (((F_CPU / PRESCALE_VALUE) * ms) / 1000) #define TIME_MS(ms) (((F_CPU / PRESCALE_VALUE) * ms) / 1000)
// END MACROS
int main() { int main() {
MODE_OUTPUT(B, D2); MODE_OUTPUT(LED2);
TURN_OFF_LED(D2); CLEAR_ELEM(LED2);
TCCR1B |= (PRESCALE_SET); // set timer with prescale TCCR1B |= (PRESCALE_SET); // set timer with prescale
// -> 16.4 : set timer with bits CS10-12, in register TCCR1B // -> 16.4 : set timer with bits CS10-12, in register TCCR1B
@@ -58,7 +75,7 @@ int main() {
while(1) { while(1) {
if (TCNT1 >= TIME_MS(500)) { // 16.11.4 : read timer with register TCNT1 (read/write allowed), that combines two 8 bits registers if (TCNT1 >= TIME_MS(500)) { // 16.11.4 : read timer with register TCNT1 (read/write allowed), that combines two 8 bits registers
TOGGLE_LED(D2); TOGGLE_PIN(LED2);
TCNT1 = 0; // reset timer value, also in register TCNT1 TCNT1 = 0; // reset timer value, also in register TCNT1
} }
} }

67
module01/ex01/main.c
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@@ -1,37 +1,52 @@
#include <avr/io.h> #include <avr/io.h>
// #define FIRST_LETTER_IMPL(x) #x[0] // stringify
// #define FIRST_LETTER(x) FIRST_LETTER_IMPL(x) #define STRINGIFY_HELPER(x) #x
// #define PORT_LETTER(PIN) FIRST_LETTER(PIN) #define STRINGIFY(x) STRINGIFY_HELPER(x)
// global registers // concatenate
#define CONCAT_HELPER(x, y) x ## y
#define CONCAT(x, y) CONCAT_HELPER(x, y)
// get argument
#define ARG_1(v1, v2) v1
#define ARG_2(v1, v2) v2
#define GET_PORT(args) ARG_1 args
#define GET_BIT(args) ARG_2 args
// actions on registers
#define SET(register, bit) register |= 1 << bit #define SET(register, bit) register |= 1 << bit
#define CLEAR(register, bit) register &= ~(1 << bit) #define CLEAR(register, bit) register &= ~(1 << bit)
#define TEST(register, bit) register & 1 << bit #define TEST(register, bit) register & 1 << bit
#define TOGGLE(register, bit) register ^= 1 << bit #define TOGGLE(register, bit) register ^= 1 << bit
// actions on ports // actions on elements
#define TEST_PIN(port, bit) TEST(PIN ## port, bit) #define SET_ELEM(elem) SET(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(port, bit) SET(PIN ## port, bit) #define CLEAR_ELEM(elem) CLEAR(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_INPUT(port, bit) CLEAR(DDR ## port, bit) #define TEST_ELEM(elem) TEST(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define MODE_OUTPUT(port, bit) SET(DDR ## port, bit) #define TOGGLE_ELEM(elem) TOGGLE(CONCAT(PORT, GET_PORT(elem)), GET_BIT(elem))
#define IS_PIN_SET(port, bit) (TEST_PIN(port, bit)) == 0 #define MODE_OUTPUT(elem) SET(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define IS_PIN_CLEAR(port, bit) (TEST_PIN(port, bit)) == 1 #define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TURN_ON(_PORT, BIT) SET(PORT ## _PORT, BIT) #define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TURN_OFF(_PORT, BIT) CLEAR(PORT ## _PORT, BIT) #define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// LEDs // bits
#define TURN_ON_LED(bit) SET(PORTB, bit) #define D1 0
#define TURN_OFF_LED(bit) CLEAR(PORTB, bit) #define D2 1
#define TOGGLE_LED(led) TOGGLE_PIN(B, led) #define D3 2
#define D4 4
#define SW1 2
#define SW2 4
// ELEMENTS // elements (port, bit)
#define D1 0 #define LED1 (B, D1)
#define D2 1 #define LED2 (B, D2)
#define D3 2 #define LED3 (B, D3)
#define D4 4 #define LED4 (B, D4)
#define SW1 2 #define BUTTON1 (D, SW1)
#define SW2 4 #define BUTTON2 (D, SW2)
// TIME // TIME
#define PRESCALE_VALUE 1024 #define PRESCALE_VALUE 1024
@@ -48,8 +63,10 @@
#endif #endif
#define TIME_MS(ms) (((F_CPU / PRESCALE_VALUE) * ms) / 1000) #define TIME_MS(ms) (((F_CPU / PRESCALE_VALUE) * ms) / 1000)
// END MACROS
int main() { int main() {
MODE_OUTPUT(B, D2); MODE_OUTPUT(LED2);
TCCR1B |= (1 << WGM12); // set timer in CTC (Clear Time on Compare) mode TCCR1B |= (1 << WGM12); // set timer in CTC (Clear Time on Compare) mode
// -> Table 16-4 : use bit WGM12 to set mode ctc // -> Table 16-4 : use bit WGM12 to set mode ctc

61
module01/ex02/main.c
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@@ -1,61 +1,3 @@
// #include <avr/io.h>
// // #define FIRST_LETTER_IMPL(x) #x[0]
// // #define FIRST_LETTER(x) FIRST_LETTER_IMPL(x)
// // #define PORT_LETTER(PIN) FIRST_LETTER(PIN)
// // global registers
// #define SET(register, bit) register |= 1 << bit
// #define CLEAR(register, bit) register &= ~(1 << bit)
// #define TEST(register, bit) register & 1 << bit
// #define TOGGLE(register, bit) register ^= 1 << bit
// // actions on ports
// #define TEST_PIN(port, bit) TEST(PIN ## port, bit)
// #define TOGGLE_PIN(port, bit) SET(PIN ## port, bit)
// #define MODE_INPUT(port, bit) CLEAR(DDR ## port, bit)
// #define MODE_OUTPUT(port, bit) SET(DDR ## port, bit)
// #define IS_PIN_SET(port, bit) (TEST_PIN(port, bit)) == 0
// #define IS_PIN_CLEAR(port, bit) (TEST_PIN(port, bit)) == 1
// #define TURN_ON(_PORT, BIT) SET(PORT ## _PORT, BIT)
// #define TURN_OFF(_PORT, BIT) CLEAR(PORT ## _PORT, BIT)
// // LEDs
// #define TURN_ON_LED(bit) SET(PORTB, bit)
// #define TURN_OFF_LED(bit) CLEAR(PORTB, bit)
// #define TOGGLE_LED(led) TOGGLE_PIN(B, led)
// // ELEMENTS
// #define D1 0
// #define D2 1
// #define D3 2
// #define D4 4
// #define SW1 2
// #define SW2 4
// // TIME
// #define PRESCALE_VALUE 1024
// #if (PRESCALE_VALUE == 1)
// #define PRESCALE_SET (1 << CS10)
// #elif (PRESCALE_VALUE == 8)
// #define PRESCALE_SET (1 << CS11)
// #elif (PRESCALE_VALUE == 64)
// #define PRESCALE_SET (1 << CS10) | (1 << CS11)
// #elif (PRESCALE_VALUE == 256)
// #define PRESCALE_SET (1 << CS12)
// #elif (PRESCALE_VALUE == 1024)
// #define PRESCALE_SET (1 << CS10) | (1 << CS12)
// #endif
// #define TIME_MS(ms) (((F_CPU / PRESCALE_VALUE) * ms) / 1000)
// int main() {
// MODE_OUTPUT(B, D2);
// TURN_ON(B, D2);
// }
//////////////////////////////////////////////
#include <stdio.h>
#include <avr/io.h> #include <avr/io.h>
// stringify // stringify
@@ -87,6 +29,8 @@
#define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem)) #define MODE_INPUT(elem) CLEAR(CONCAT(DDR, GET_PORT(elem)), GET_BIT(elem))
#define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)) #define TOGGLE_PIN(elem) SET(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))
#define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem))) #define TEST_PIN(elem) (TEST(CONCAT(PIN, GET_PORT(elem)), GET_BIT(elem)))
#define IS_PIN_SET(elem) (TEST_PIN(elem) == 0)
#define IS_PIN_CLEAR(elem) (TEST_PIN(elem) == 1)
// bits // bits
#define D1 0 #define D1 0
@@ -104,6 +48,7 @@
#define BUTTON1 (D, SW1) #define BUTTON1 (D, SW1)
#define BUTTON2 (D, SW2) #define BUTTON2 (D, SW2)
// END MACROS
int main() int main()
{ {