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/*------------------------------------------------------------------------------
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-- This file is a part of the libuc, microcontroler library
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-- Copyright (C) 2011, Alexis Jeandet
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-------------------------------------------------------------------------------
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-- Author : Alexis Jeandet
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-- Mail : alexis.jeandet@gmail.com
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-------------------------------------------------------------------------------*/
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#include "bsp.h"
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#include "core.h"
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unsigned int OSC0 =24000000;
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unsigned int INTOSC =4000000;
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unsigned int RTCOSC =32768;
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unsigned int currentCpuFreq=0;
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float VREF0 =(float)3.3;
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uartDev UART0=(uartDev)0;
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uartDev UART1=(uartDev)0;
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uartDev UART2=(uartDev)0;
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uartDev UART3=(uartDev)0;
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i2cDev IIC0=(i2cDev)0;
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i2cDev IIC1=(i2cDev)0;
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i2cDev IIC2=(i2cDev)0;
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sspDev SSP0=(sspDev)0;
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sspDev SSP1=(sspDev)0;
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sdcardDev SDCARD0;
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blkdevice BLKDEVSDCARD0;
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dikpartition PART0;
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FAT32fs fs0;
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ucdirent root;
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ads1278Dev adc0;
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eeprom24lc0xDev eeprom0;
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#define __delay(t) for(volatile int i=0;i<t;i++);
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int bsp_init()
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{
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bsp_GPIO_init();
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LEDS_ON;
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coresetCpuFreq(8000000);
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currentCpuFreq=coregetCpuFreq();
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coresetCpuFreq(55 MHz);
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currentCpuFreq=coregetCpuFreq();
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bsp_uart_init();
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//bsp_iic_init();
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bsp_ssp_init();
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bsp_SD_init();
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bsp_adc_init();
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return 0;
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}
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void bsp_GPIO_init()
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{
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LPC_SC->PCONP |= ( 1 << 15 ); // power up GPIO
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LPC_GPIO0->FIODIR |=(1<<15) + (1<<17) + (1<<18);
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LEDS_OFF;
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}
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void bsp_uart_init()
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{
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LPC_SC->PCONP |= ( 1 << 24 ); // power up UART3
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LPC_SC->PCONP |= ( 1 << 4 ); // power up UART1
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LPC_PINCON->PINSEL0 |= (1<<4);
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LPC_PINCON->PINSEL0 &= ~(1<<5);
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LPC_PINCON->PINSEL0 |= (1<<6);
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LPC_PINCON->PINSEL0 &= ~(1<<7);
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LPC_PINCON->PINSEL0 |= (1<<20);
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LPC_PINCON->PINSEL0 &= ~(1<<21);
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LPC_PINCON->PINSEL0 |= (1<<22);
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LPC_PINCON->PINSEL0 &= ~(1<<23);
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UART0= uartopen(0);
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uartsetup(UART0,115200,8,1,uartNoParity);
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UART2= uartopen(2);
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uartsetup(UART2,115200,8,1,uartNoParity);
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}
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void bsp_ssp_init()
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{
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SSP1 = sspopen(1);
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ssppowerup(SSP1);
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sspsetpclkfactor(SSP1,1);
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sspsetup(SSP1,8,FFSPI|CLKINHLOW|CKfirstEdge,loopbackOFF|MASTERMODE, 22 MHz);
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enableSSP(SSP1);
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LPC_PINCON->PINSEL0 |= (2<<12); //SSEL1 on P0.6
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LPC_PINCON->PINSEL0 |= (2<<14); //SCK1 on P0.7
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LPC_PINCON->PINSEL0 |= (2<<16); //MISO1 on P0.8
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LPC_PINCON->PINSEL0 |= (2<<18); //MOSI1 on P0.9
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LPC_GPIO0->FIODIR |= (1<<6) + (1<<7) + (1<<9);
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SSP0 = sspopen(0);
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ssppowerup(SSP0);
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sspsetpclkfactor(SSP0,1);
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sspsetup(SSP0,8,FFSPI|CLKINHLOW|CKfirstEdge,loopbackOFF|MASTERMODE, 350000);
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enableSSP(SSP0);
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LPC_PINCON->PINSEL3 |= (3<<14); //MISO0 on P1.23
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LPC_PINCON->PINSEL3 |= (3<<16); //MOSI0 on P1.24
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LPC_PINCON->PINSEL3 |= (3<<8); //SCK0 on P1.20
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LPC_GPIO1->FIODIR |= (1<<24) + (1<<20);
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LPC_PINCON->PINMODE3 &= ~(1<<14);
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LPC_PINCON->PINMODE3 &= ~(1<<15);
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//LPC_PINCON->PINSEL3 |= (3<<10); //SSEL0 on P1.21 disable for SDCARD -> need to send dummy clock
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}
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void bsp_iic_init()
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{
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LPC_SC->PCONP |= ( 1 << 7 ); // power up IIC0
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LPC_PINCON->PINSEL1 |= (1<<22);
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LPC_PINCON->PINSEL1 &= ~(1<<23);
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LPC_PINCON->PINSEL1 |= (1<<24);
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LPC_PINCON->PINSEL1 &= ~(1<<25);
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IIC0 = i2copen(0);
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i2csetdatarate(IIC0,100000);
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eeprom24lc0xopen(&eeprom0,IIC0,0,2048);
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}
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void bsp_adc_init()
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{
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LPC_GPIO0->FIODIR |=(1<<24); // ADS1278 Clkdiv pin on p0.24
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LPC_GPIO0->FIOSET = 1<<24; //Set ADS1278 Clkdiv pin to high freq mode
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LPC_GPIO0->FIODIR |=(1<<23); // ADS1278 Synch pin on p0.23
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LPC_GPIO0->FIOSET = 1<<23; //Set ADS1278 Synch
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LPC_GPIO2->FIODIR |=(1); // ADS1278 FSYNCH pin on p2.0
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LPC_GPIO2->FIOCLR =(1);
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LPC_GPIO2->FIODIR |=(1<<1); // ADS1278 Mode1 pin on p2.1
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LPC_GPIO2->FIODIR |=(1<<2); // ADS1278 Mode0 pin on p2.2
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LPC_GPIO2->FIOSET = 1<<1; //High resolution mode Mode0=1 Mode1=0
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LPC_GPIO2->FIOCLR = 1<<2;
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ads1278open(&adc0,SSP1);
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}
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void bsp_SD_init()
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{
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LPC_GPIO1->FIODIR |=(1<<21); // SD card chip select on p1.19
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LPC_GPIO1->FIOSET = 1<<21; //unselect SD card
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LPC_GPIO3->FIODIR &= ~(1<<25);
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sdcardmake(&SDCARD0,SSP0,&sspgetnc,&sspputnc,&sspsetdatarate,&sspgetdatarate);
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sdcardmakeblkdev(&BLKDEVSDCARD0,&SDCARD0,&bspsdcardselect,&bsppowersdcard,&bspsdcardpresent,&bspsdcardwriteprotected);
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BLKDEVSDCARD0.initialize(&BLKDEVSDCARD0);
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mbropen(&BLKDEVSDCARD0,&PART0,1);
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fat32open(&fs0,&PART0);
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fat32mkdirent(&fs0,&root);
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}
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void consoleputc(char c)
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{
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uartputc(UART0,c);
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}
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char consolegetc()
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{
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return uartgetc(UART0);
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}
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void vs10XXclearXCS(){}
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void vs10XXsetXCS(){}
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int vs10XXDREQ()
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{
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return 1;
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}
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void bsppowersdcard(char onoff) //always ON
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{
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}
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char bspsdcardpresent()
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{
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return (((LPC_GPIO3->FIOPIN >> 25) & 1) ^1);
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}
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char bspsdcardwriteprotected()
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{
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return 0;
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}
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void bspsdcardselect(char YESNO)
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{
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LPC_GPIO1->FIOPIN = ((YESNO & 1)^1)<<21;
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}
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void bsp_ads1278_Synch()
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{
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LPC_GPIO0->FIOCLR = 1<<23;
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for(volatile int i =0;i<5;i++);
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LPC_GPIO0->FIOSET = 1<<23;
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}
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void bsp_ads1278_Sample()
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{
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LPC_GPIO2->FIOCLR =(1);
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LPC_GPIO2->FIOSET =(1);
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for(volatile int i =0;i<5;i++);
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LPC_GPIO2->FIOCLR =(1);
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}
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int bsp_ads1278_Ready()
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{
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return !(LPC_GPIO2->FIOPIN & 1);
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}
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