Firmware2/Marlin/src/HAL/HAL_LPC1768/HAL.cpp

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/**
* Marlin 3D Printer Firmware
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* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
* 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/>.
*
*/
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#ifdef TARGET_LPC1768
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#include "../../inc/MarlinConfig.h"
#include "../shared/Delay.h"
#include "../../../gcode/parser.h"
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#if ENABLED(USE_WATCHDOG)
#include "watchdog.h"
#endif
uint32_t HAL_adc_reading = 0;
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// U8glib required functions
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extern "C" void u8g_xMicroDelay(uint16_t val) {
DELAY_US(val);
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}
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extern "C" void u8g_MicroDelay() {
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u8g_xMicroDelay(1);
}
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extern "C" void u8g_10MicroDelay() {
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u8g_xMicroDelay(10);
}
extern "C" void u8g_Delay(uint16_t val) {
delay(val);
}
//************************//
// return free heap space
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int freeMemory() {
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char stack_end;
void *heap_start = malloc(sizeof(uint32_t));
if (heap_start == 0) return 0;
uint32_t result = (uint32_t)&stack_end - (uint32_t)heap_start;
free(heap_start);
return result;
}
// scan command line for code
// return index into pin map array if found and the pin is valid.
// return dval if not found or not a valid pin.
int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
const uint16_t val = (uint16_t)parser.intval(code, -1), port = val / 100, pin = val % 100;
const int16_t ind = (port < ((NUM_DIGITAL_PINS) >> 5) && pin < 32) ? ((port << 5) | pin) : -2;
return ind > -1 ? ind : dval;
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}
void flashFirmware(int16_t value) {
NVIC_SystemReset();
}
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void HAL_clear_reset_source(void) {
#if ENABLED(USE_WATCHDOG)
watchdog_clear_timeout_flag();
#endif
}
uint8_t HAL_get_reset_source(void) {
#if ENABLED(USE_WATCHDOG)
if (watchdog_timed_out()) return RST_WATCHDOG;
#endif
return RST_POWER_ON;
}
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#endif // TARGET_LPC1768