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/*
* File: main.cpp
* Author: naopross
*
* Created on May 1, 2018, 6:18 PM
*/
// Note: there is some debug code in uart.tpp that controls the RGB led
// #define DEBUG
// basic devices
#include "hal/confbits.hpp"
#include "hal/hwconfig.hpp"
// specific devices
#include "hal/uart.tpp"
#include "hal/pin.tpp"
// high level
#include "led.hpp"
// standard library
#include <string>
#include <vector>
#include <algorithm>
// microchip libraries
extern "C" {
#include <xc.h>
// #include <proc/p32mx470f512h.h>
}
std::vector<std::string> split(const std::string& str, const char sep)
{
std::vector<std::string> v;
std::string sub;
size_t last = 0;
size_t next = 0;
while ((next = str.find(sep, last)) != std::string::npos) {
sub = str.substr(last, next-last);
if (!sub.empty()) {
v.push_back(sub);
}
last = next + 1;
}
sub = str.substr(last);
if (!sub.empty()) {
v.push_back(sub);
}
return v;
}
int main(int argc, char *argv[])
{
osc::initialize();
interrupts::initialize();
// initialize uart and enable echo
uart::initialize<1>();
uart::echo<1>(true);
// initialize pin as outputs
io_pin<4> led1_pin(&LATEbits, &TRISEbits, &PORTEbits);
io_pin<6> led2_pin(&LATEbits, &TRISEbits, &PORTEbits);
io_pin<7> led3_pin(&LATEbits, &TRISEbits, &PORTEbits);
// build leds
led led_red(static_cast<gpio_pin *>(&led1_pin), led::color::RED);
led led_green(static_cast<gpio_pin *>(&led2_pin), led::color::GREEN);
led led_yellow(static_cast<gpio_pin *>(&led3_pin), led::color::YELLOW);
#ifdef DEBUG
led_red.set(1);
led_green.set(1);
led_yellow.set(1);
uart::write<1>("started\n\r");
#endif
while (true) {
std::string input = "";
// write prompt
uart::write<1>("> ");
do {
input += uart::read_wait<1>();
// Note: does not work with teraterm on windows
// DEL character
if (input.back() == '\x7f') {
input.pop_back();
if (input.size() > 1) {
input.pop_back();
uart::write<1>("\b \b");
}
}
} while (input.back() != '\r' && input.back() != '\n');
uart::write<1>("\n\r");
#ifdef DEBUG
uart::write<1>("input: ");
uart::print<1>(input);
#endif
// remove non printable symbols
input.erase(std::remove_if(input.begin(), input.end(), std::iscntrl), input.end());
// set to lowercase
std::transform(input.begin(), input.end(), input.begin(), std::tolower);
// split
const std::vector<std::string> command = split(input, ' ');
#ifdef DEBUG
uart::print<1>("parsed commmands:");
for (int i = 0; i < command.size(); i++) {
uart::print<1>(command[i]);
}
#endif
// parse command
if (command.size() == 1) {
if (command[0] == "help") {
uart::print<1>("List of available commands:");
uart::print<1>("help");
uart::print<1>("set led <color> <on/off>");
uart::print<1>("show led all <on/off>");
uart::print<1>("set baudrate <baud>");
uart::print<1>("\n\rList of available colors:");
uart::print<1>("red, green, yellow");
uart::print<1>("\n\rList of available baudrates:");
uart::print<1>("9600, 4800");
}
} else if (command.size() == 3) {
if (command[0] == "show") {
if (command[1] == "led") {
if (command[2] == "all") {
uart::print<1>(led_red.to_string());
uart::print<1>(led_green.to_string());
uart::print<1>(led_yellow.to_string());
}
}
}
if (command[0] == "set") {
if (command[1] == "baudrate") {
if (command[2] == "9600") {
// TODO: replace with uart::set_baudrate<dev>(baud);
U1BRG = 0x19;
} else if (command[2] == "4800") {
U1BRG = 0x33;
}
}
}
} else if (command.size() == 4) {
if (command[0] == "set") {
if (command[1] == "led") {
if (command[2] == "red") {
if (command[3] == "on") {
led_red.set(1);
} else if (command[3] == "off") {
led_red.set(0);
}
} else if (command[2] == "green") {
if (command[3] == "on") {
led_green.set(1);
} else if (command[3] == "off") {
led_green.set(0);
}
} else if (command[2] == "yellow") {
if (command[3] == "on") {
led_yellow.set(1);
} else if (command[3] == "off") {
led_yellow.set(0);
}
} else if (command[2] == "all") {
if (command[3] == "on") {
led_red.set(1);
led_green.set(1);
led_yellow.set(1);
} else if (command[3] == "off") {
led_red.set(0);
led_green.set(0);
led_yellow.set(0);
}
}
}
}
}
}
return 0;
}
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