Marlin_Firmware/Marlin/src/HAL/HAL_LPC1768/HAL.cpp

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/* **************************************************************************
Marlin 3D Printer Firmware
Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
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/>.
****************************************************************************/
#ifdef TARGET_LPC1768
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#include "../../inc/MarlinConfig.h"
#include "../shared/Delay.h"
#include "../../../gcode/parser.h"
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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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}
extern "C" void u8g_MicroDelay(void) {
u8g_xMicroDelay(1);
}
extern "C" void u8g_10MicroDelay(void) {
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;
}
int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
const uint16_t val = (uint16_t)parser.intval(code), port = val / 100, pin = val % 100;
const int16_t ind = (port < (NUM_DIGITAL_PINS >> 5) && (pin < 32))
? GET_PIN_MAP_INDEX(port << 5 | pin) : -2;
return ind > -2 ? ind : dval;
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}
#endif // TARGET_LPC1768