71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
*
|
|
* Based on Sprinter and grbl.
|
|
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
|
|
*
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* HAL_LPC1768/include/i2c_util.c
|
|
*/
|
|
|
|
#ifdef TARGET_LPC1768
|
|
|
|
#include "i2c_util.h"
|
|
|
|
#define U8G_I2C_OPT_FAST 16 // from u8g.h
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
void configure_i2c(const uint8_t clock_option) {
|
|
/**
|
|
* Init I2C pin connect
|
|
*/
|
|
PINSEL_CFG_Type PinCfg;
|
|
PinCfg.OpenDrain = 0;
|
|
PinCfg.Pinmode = 0;
|
|
PinCfg.Portnum = 0;
|
|
#if I2C_MASTER_ID == 0
|
|
PinCfg.Funcnum = 1;
|
|
PinCfg.Pinnum = 27; // SDA0 / D57 AUX-1 ... SCL0 / D58 AUX-1
|
|
#elif I2C_MASTER_ID == 1
|
|
PinCfg.Funcnum = 3;
|
|
PinCfg.Pinnum = 0; // SDA1 / D20 SCA ... SCL1 / D21 SCL
|
|
#elif I2C_MASTER_ID == 2
|
|
PinCfg.Funcnum = 2;
|
|
PinCfg.Pinnum = 10; // SDA2 / D38 X_ENABLE_PIN ... SCL2 / D55 X_DIR_PIN
|
|
#endif
|
|
PINSEL_ConfigPin(&PinCfg);
|
|
PinCfg.Pinnum += 1;
|
|
PINSEL_ConfigPin(&PinCfg);
|
|
|
|
// Initialize I2C peripheral
|
|
I2C_Init(I2CDEV_M, (clock_option & U8G_I2C_OPT_FAST) ? 400000: 100000); // LCD data rates
|
|
|
|
// Enable Master I2C operation
|
|
I2C_Cmd(I2CDEV_M, I2C_MASTER_MODE, ENABLE);
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // TARGET_LPC1768
|