/* * File : drv_sdram.c * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team * * 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 2 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Change Logs: * Date Author Notes * 2017-08-02 Yang the first version */ #include "drv_sdram.h" #include #include "fsl_iocon.h" /******************************************************************************************* * @函数名：sdram_gpio_config() * @参数 ：void * @返回值：void * @描述 ：SDRAM管脚配置函数，内部调用 *********************************************************************************************/ static void sdram_gpio_config(void) { // CLOCK_EnableClock(kCLOCK_Iocon); /* Enables the clock for the IOCON block. 0 = Disable; 1 = Enable.: 0x01u */ const uint32_t port0_pin15_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_WEN */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN15_IDX, port0_pin15_config); /* PORT0 PIN15 (coords: L4) is configured as EMC_WEN */ const uint32_t port0_pin18_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(0) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN18_IDX, port0_pin18_config); /* PORT0 PIN18 (coords: C14) is configured as EMC_A(0) */ const uint32_t port0_pin19_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(1) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN19_IDX, port0_pin19_config); /* PORT0 PIN19 (coords: C6) is configured as EMC_A(1) */ const uint32_t port0_pin2_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(0) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN2_IDX, port0_pin2_config); /* PORT0 PIN2 (coords: E9) is configured as EMC_D(0) */ const uint32_t port0_pin20_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(2) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN20_IDX, port0_pin20_config); /* PORT0 PIN20 (coords: D13) is configured as EMC_A(2) */ const uint32_t port0_pin21_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(3) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN21_IDX, port0_pin21_config); /* PORT0 PIN21 (coords: C13) is configured as EMC_A(3) */ const uint32_t port0_pin3_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(1) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN3_IDX, port0_pin3_config); /* PORT0 PIN3 (coords: A10) is configured as EMC_D(1) */ const uint32_t port0_pin4_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(2) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN4_IDX, port0_pin4_config); /* PORT0 PIN4 (coords: C8) is configured as EMC_D(2) */ const uint32_t port0_pin5_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(3) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN5_IDX, port0_pin5_config); /* PORT0 PIN5 (coords: E7) is configured as EMC_D(3) */ const uint32_t port0_pin6_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(4) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN6_IDX, port0_pin6_config); /* PORT0 PIN6 (coords: A5) is configured as EMC_D(4) */ const uint32_t port0_pin7_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(5) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN7_IDX, port0_pin7_config); /* PORT0 PIN7 (coords: H12) is configured as EMC_D(5) */ const uint32_t port0_pin8_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(6) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN8_IDX, port0_pin8_config); /* PORT0 PIN8 (coords: H10) is configured as EMC_D(6) */ const uint32_t port0_pin9_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(7) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN9_IDX, port0_pin9_config); /* PORT0 PIN9 (coords: G12) is configured as EMC_D(7) */ const uint32_t port1_pin10_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_RASN */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN10_IDX, port1_pin10_config); /* PORT1 PIN10 (coords: N9) is configured as EMC_RASN */ const uint32_t port1_pin11_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_CLK(0) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN11_IDX, port1_pin11_config); /* PORT1 PIN11 (coords: B4) is configured as EMC_CLK(0) */ const uint32_t port1_pin12_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_DYCSN(0) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN12_IDX, port1_pin12_config); /* PORT1 PIN12 (coords: K9) is configured as EMC_DYCSN(0) */ const uint32_t port1_pin13_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_DQM(0) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN13_IDX, port1_pin13_config); /* PORT1 PIN13 (coords: G10) is configured as EMC_DQM(0) */ const uint32_t port1_pin14_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_DQM(1) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN14_IDX, port1_pin14_config); /* PORT1 PIN14 (coords: C12) is configured as EMC_DQM(1) */ const uint32_t port1_pin15_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_CKE(0) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN15_IDX, port1_pin15_config); /* PORT1 PIN15 (coords: A11) is configured as EMC_CKE(0) */ const uint32_t port1_pin16_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(10) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN16_IDX, port1_pin16_config); /* PORT1 PIN16 (coords: B7) is configured as EMC_A(10) */ const uint32_t port1_pin19_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(8) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN19_IDX, port1_pin19_config); /* PORT1 PIN19 (coords: L1) is configured as EMC_D(8) */ const uint32_t port1_pin20_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(9) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN20_IDX, port1_pin20_config); /* PORT1 PIN20 (coords: M1) is configured as EMC_D(9) */ const uint32_t port1_pin21_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(10) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN21_IDX, port1_pin21_config); /* PORT1 PIN21 (coords: N8) is configured as EMC_D(10) */ const uint32_t port1_pin23_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(11) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN23_IDX, port1_pin23_config); /* PORT1 PIN23 (coords: M10) is configured as EMC_A(11) */ const uint32_t port1_pin24_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(12) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN24_IDX, port1_pin24_config); /* PORT1 PIN24 (coords: N14) is configured as EMC_A(12) */ const uint32_t port1_pin25_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(13) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN25_IDX, port1_pin25_config); /* PORT1 PIN25 (coords: M12) is configured as EMC_A(13) */ const uint32_t port1_pin26_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(8) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN26_IDX, port1_pin26_config); /* PORT1 PIN26 (coords: J10) is configured as EMC_A(8) */ const uint32_t port1_pin27_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(9) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN27_IDX, port1_pin27_config); /* PORT1 PIN27 (coords: F10) is configured as EMC_A(9) */ const uint32_t port1_pin28_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(12) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN28_IDX, port1_pin28_config); /* PORT1 PIN28 (coords: E12) is configured as EMC_D(12) */ const uint32_t port1_pin29_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(13) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN29_IDX, port1_pin29_config); /* PORT1 PIN29 (coords: C11) is configured as EMC_D(13) */ const uint32_t port1_pin30_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(14) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN30_IDX, port1_pin30_config); /* PORT1 PIN30 (coords: A8) is configured as EMC_D(14) */ const uint32_t port1_pin31_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(15) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN31_IDX, port1_pin31_config); /* PORT1 PIN31 (coords: C5) is configured as EMC_D(15) */ const uint32_t port1_pin4_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_D(11) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN4_IDX, port1_pin4_config); /* PORT1 PIN4 (coords: D4) is configured as EMC_D(11) */ const uint32_t port1_pin5_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(4) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN5_IDX, port1_pin5_config); /* PORT1 PIN5 (coords: E4) is configured as EMC_A(4) */ const uint32_t port1_pin6_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(5) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN6_IDX, port1_pin6_config); /* PORT1 PIN6 (coords: G4) is configured as EMC_A(5) */ const uint32_t port1_pin7_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(6) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN7_IDX, port1_pin7_config); /* PORT1 PIN7 (coords: N1) is configured as EMC_A(6) */ const uint32_t port1_pin8_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(7) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN8_IDX, port1_pin8_config); /* PORT1 PIN8 (coords: P8) is configured as EMC_A(7) */ const uint32_t port1_pin9_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_CASN */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT1_IDX, PIN9_IDX, port1_pin9_config); /* PORT1 PIN9 (coords: K6) is configured as EMC_CASN */ const uint32_t port3_pin25_config = ( IOCON_PIO_FUNC6 | /* Pin is configured as EMC_A(14) */ IOCON_PIO_MODE_INACT | /* No addition pin function */ IOCON_PIO_INV_DI | /* Input function is not inverted */ IOCON_PIO_DIGITAL_EN | /* Enables digital function */ IOCON_PIO_INPFILT_OFF | /* Input filter disabled */ IOCON_PIO_SLEW_FAST | /* Fast mode, slew rate control is disabled */ IOCON_PIO_OPENDRAIN_DI /* Open drain is disabled */ ); IOCON_PinMuxSet(IOCON, PORT3_IDX, PIN25_IDX, port3_pin25_config); /* PORT3 PIN25 (coords: P9) is configured as EMC_A(14) */ } void lpc_sdram_hw_init(void) { emc_basic_config_t basicConfig; emc_dynamic_timing_config_t dynTiming; emc_dynamic_chip_config_t dynChipConfig; sdram_gpio_config(); /* Basic configuration. */ basicConfig.endian = kEMC_LittleEndian; basicConfig.fbClkSrc = kEMC_IntloopbackEmcclk; /* EMC Clock = CPU FREQ/2 here can fit CPU freq from 12M ~ 180M. * If you change the divide to 0 and EMC clock is larger than 100M * please take refer to emc.dox to adjust EMC clock delay. */ basicConfig.emcClkDiv = 1; /* Dynamic memory timing configuration. */ dynTiming.readConfig = kEMC_Cmddelay; dynTiming.refreshPeriod_Nanosec = SDRAM_REFRESHPERIOD_NS; dynTiming.tRp_Ns = SDRAM_TRP_NS; dynTiming.tRas_Ns = SDRAM_TRAS_NS; dynTiming.tSrex_Ns = SDRAM_TSREX_NS; dynTiming.tApr_Ns = SDRAM_TAPR_NS; dynTiming.tWr_Ns = (1000000000 / CLOCK_GetFreq(kCLOCK_EMC) + SDRAM_TWRDELT_NS); /* one clk + 6ns */ dynTiming.tDal_Ns = dynTiming.tWr_Ns + dynTiming.tRp_Ns; dynTiming.tRc_Ns = SDRAM_TRC_NS; dynTiming.tRfc_Ns = SDRAM_RFC_NS; dynTiming.tXsr_Ns = SDRAM_XSR_NS; dynTiming.tRrd_Ns = SDRAM_RRD_NS; dynTiming.tMrd_Nclk = SDRAM_MRD_NCLK; /* Dynamic memory chip specific configuration: Chip 0 - MTL48LC8M16A2B4-6A */ dynChipConfig.chipIndex = 0; dynChipConfig.dynamicDevice = kEMC_Sdram; dynChipConfig.rAS_Nclk = SDRAM_RAS_NCLK; dynChipConfig.sdramModeReg = SDRAM_MODEREG_VALUE; dynChipConfig.sdramExtModeReg = 0; /* it has no use for normal sdram */ dynChipConfig.devAddrMap = SDRAM_DEV_MEMORYMAP; /* EMC Basic configuration. */ EMC_Init(EMC, &basicConfig); /* EMC Dynamc memory configuration. */ EMC_DynamicMemInit(EMC, &dynTiming, &dynChipConfig, 1); }