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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 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 <https://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
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