max/rpi_micro_examples
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Way simplify logic

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This commit is contained in:
Maximilian Friedersdorff 2021-10-31 16:36:05 +00:00
parent 0d4b50a7c0
commit 5a2963d3ba
4 changed files with 33 additions and 104 deletions
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2
CMakeLists.txt
View file

@ -9,8 +9,6 @@ pico_sdk_init()
add_executable(pdu
pdu.c
uart.h
uart.c
)
target_link_libraries(pdu pico_stdlib)

88
pdu.c
View file

@ -1,7 +1,6 @@
#include <stdio.h>
#include <string.h>
#include "uart.h"
#include "pico/stdlib.h"
#include "hardware/uart.h"
@ -13,44 +12,13 @@
#define UART_TX_PIN 16
#define UART_RX_PIN 17
#define MAX_COMMAND_LENGTH 32
#define PINA 6
#define PINB 7
#define PINC 8
#define PIND 9
void set_power_state(char relay, bool on) {
uint state;
if (on)
state = 0;
else
state = 1;
uint pin;
switch (relay) {
case 'a' :
pin = PINA;
break;
case 'b' :
pin = PINB;
break;
case 'c' :
pin = PINC;
break;
case 'd' :
pin = PIND;
break;
}
gpio_put(pin, state);
}
int main() {
char command_string[MAX_COMMAND_LENGTH + 1];
command_string[0] = 0;
uint command_len = 0;
uart_init(UART_ID, 9600);
gpio_set_function(UART_TX_PIN, GPIO_FUNC_UART);
@ -74,30 +42,40 @@ int main() {
gpio_put(PINC, 1);
gpio_put(PIND, 1);
bool eol;
char word[9];
char relay;
while (true) {
read_word(UART_ID, word, 9, &eol);
if (strcmp(word, "on") == 0) {
if (eol) {
uart_puts(UART_ID, "Missing argument: n");
continue;
}
relay = uart_getc(UART_ID);
finish_line(UART_ID);
set_power_state(relay, true);
} else if (strcmp(word, "off") == 0) {
if (eol) {
uart_puts(UART_ID, "Missing argument: n");
continue;
}
relay = uart_getc(UART_ID);
finish_line(UART_ID);
set_power_state(relay, false);
} else if (strcmp(word, "temps") == 0) {
uart_puts(UART_ID, "Not implemented yet");
char last_char;
while (true) {
last_char = uart_getc(UART_ID);
switch (last_char) {
case 'a' :
gpio_put(PINA, 1);
break;
case 'b' :
gpio_put(PINB, 1);
break;
case 'c' :
gpio_put(PINC, 1);
break;
case 'd' :
gpio_put(PIND, 1);
break;
case 'A' :
gpio_put(PINA, 0);
break;
case 'B' :
gpio_put(PINB, 0);
break;
case 'C' :
gpio_put(PINC, 0);
break;
case 'D' :
gpio_put(PIND, 0);
break;
case 't' :
uart_puts(UART_ID, "Not implemented yet \n");
break;
default :
break;
}
}
}

36
uart.c
View file

@ -1,36 +0,0 @@
#include "uart.h"
#include "hardware/uart.h"
bool is_whitespace(char character) {
switch (character) {
case ' ' :
case '\n' :
case '\t' :
return true;
default :
return false;
}
}
void read_word(uart_inst_t *uart, char *buffer, int buffersize, bool *eol) {
for (uint i = 0; i < (buffersize - 1); ++i) {
buffer[i] = uart_getc(uart);
if (is_whitespace(buffer[i])) {
buffer[i + 1] = '\0';
}
}
char last_char;
do {
last_char = uart_getc(uart);
} while (is_whitespace(last_char));
buffer[buffersize - 1] = '\0';
}
void finish_line(uart_inst_t *uart) {
char last_char;
do {
last_char = uart_getc(uart);
} while (last_char != '\n');
}

11
uart.h
View file

@ -1,11 +0,0 @@
#ifndef LANTHANIDE_UART
#define LANTHANIDE_UART
#include "pico/stdlib.h"
bool is_whitespace(char character);
void read_word(uart_inst_t *uart, char *buffer, int buffersize, bool *eol);
void finish_line(uart_inst_t *uart);
#endif