mirror of
https://github.com/emsesp/EMS-ESP32.git
synced 2025-12-06 07:49:52 +03:00
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
|
|
* EMS-ESP - https://github.com/proddy/EMS-ESP
|
|
* Copyright 2019 Paul Derbyshire
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "emsuart_standalone.h"
|
|
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wunused-parameter"
|
|
|
|
namespace emsesp {
|
|
|
|
/*
|
|
* init UART0 driver
|
|
*/
|
|
void EMSuart::start(uint8_t tx_mode, uint8_t rx_gpio, uint8_t tx_gpio) {
|
|
}
|
|
|
|
/*
|
|
* stop UART0 driver
|
|
* This is called prior to an OTA upload and also before a save to SPIFFS to prevent conflicts
|
|
*/
|
|
void EMSuart::stop() {
|
|
}
|
|
|
|
/*
|
|
* re-start UART0 driver
|
|
*/
|
|
void EMSuart::restart() {
|
|
}
|
|
|
|
/*
|
|
* Sends a 1-byte poll, ending with a <BRK>
|
|
* It's a bit dirty. there is no special wait logic per tx_mode type, fifo flushes or error checking
|
|
*/
|
|
void EMSuart::send_poll(uint8_t data) {
|
|
}
|
|
|
|
/*
|
|
* Send data to Tx line, ending with a <BRK>
|
|
* buf contains the CRC and len is #bytes including the CRC
|
|
* returns code, 0=success, 1=brk error, 2=watchdog timeout
|
|
*/
|
|
uint16_t EMSuart::transmit(uint8_t * buf, uint8_t len) {
|
|
if (len == 0) {
|
|
return EMS_TX_STATUS_OK; // nothing to send
|
|
}
|
|
|
|
// Code for when running EMS-ESP standalone without a connected ESP8266 microcontroller
|
|
// For debugging offline
|
|
Serial.print("UART SENDING: ");
|
|
char s[5];
|
|
for (uint8_t i = 0; i < len; i++) {
|
|
Serial.print(hextoa(s, buf[i]));
|
|
Serial.print(" ");
|
|
}
|
|
Serial.println();
|
|
|
|
return EMS_TX_STATUS_OK;
|
|
}
|
|
|
|
// like itoa but for hex, and quicker
|
|
char * EMSuart::hextoa(char * result, const uint8_t value) {
|
|
char * p = result;
|
|
uint8_t nib1 = (value >> 4) & 0x0F;
|
|
uint8_t nib2 = (value >> 0) & 0x0F;
|
|
*p++ = nib1 < 0xA ? '0' + nib1 : 'A' + nib1 - 0xA;
|
|
*p++ = nib2 < 0xA ? '0' + nib2 : 'A' + nib2 - 0xA;
|
|
*p = '\0'; // null terminate just in case
|
|
return result;
|
|
}
|
|
|
|
} // namespace emsesp
|
|
|
|
#pragma GCC diagnostic pop
|