etisserant@0: /*
etisserant@0: This file is part of CanFestival, a library implementing CanOpen Stack.
etisserant@0:
etisserant@0: Author: Christian Fortin (canfestival@canopencanada.ca)
etisserant@0:
etisserant@0: See COPYING file for copyrights details.
etisserant@0:
etisserant@0: This library is free software; you can redistribute it and/or
etisserant@0: modify it under the terms of the GNU Lesser General Public
etisserant@0: License as published by the Free Software Foundation; either
etisserant@0: version 2.1 of the License, or (at your option) any later version.
etisserant@0:
etisserant@0: This library is distributed in the hope that it will be useful,
etisserant@0: but WITHOUT ANY WARRANTY; without even the implied warranty of
etisserant@0: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
etisserant@0: Lesser General Public License for more details.
etisserant@0:
etisserant@0: You should have received a copy of the GNU Lesser General Public
etisserant@0: License along with this library; if not, write to the Free Software
etisserant@0: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
etisserant@0: */
etisserant@0:
etisserant@0: #include <stdio.h>
etisserant@0: #include <stdlib.h>
etisserant@0:
etisserant@0: #include "applicfg.h"
etisserant@0: // #include "objdictdef.h"
etisserant@0:
etisserant@0: #include "lpc2138_pinout.h"
etisserant@0: #include "lpc2138_defs.h"
etisserant@0: #include "lpc2138.h"
etisserant@0:
etisserant@0: #define IAP_LOCATION 0x7ffffff1
etisserant@0:
etisserant@0: // define a page of data of 256 bytes
etisserant@0: //
etisserant@0: short data_len; /* 0 to 256 bytes */
etisserant@0: unsigned int *data_page = NULL;
etisserant@0: unsigned int data_addr;
etisserant@0:
etisserant@0: // local definitons
etisserant@0: void ee_erase(unsigned int ,unsigned int[]); //function erases EEPROM
etisserant@0: void ee_write_page(unsigned int); //function adds a record in EEPROM
etisserant@0: void ee_read_page(unsigned int); //function reads the latest valid record in EEPROM
etisserant@0:
etisserant@0: typedef void (*IAP)(unsigned int [],unsigned int[]);
etisserant@0: IAP iap_entry;
etisserant@0:
etisserant@0:
etisserant@0: /***************************************************************************************/
etisserant@0:
etisserant@0: void lpc2138_pinsel_set(int pin, LPC2138_PORT port, int size, int func)
etisserant@0: {
etisserant@0: int i;
etisserant@0:
etisserant@0: for (i = 0; i < size; pin++, i++)
etisserant@0: {
etisserant@0: /* 2 bits par broche. */
etisserant@0: int shift = (pin - ((pin < 16) ? 0 : 16)) << 1;
etisserant@0:
etisserant@0: REG32_ADDR pinsel = (port == 1) ?
etisserant@0: (REG32_ADDR) P1_PINSEL2_ADDR : ((pin < 16) ?
etisserant@0: (REG32_ADDR) P0_PINSEL0_ADDR : (REG32_ADDR) P0_PINSEL1_ADDR);
etisserant@0:
etisserant@0: *pinsel = (*pinsel & ~(BITMASK_2 << shift)) | (func << shift);
etisserant@0: }
etisserant@0: }
etisserant@0:
etisserant@0: void lpc2138_pinsel_clear()
etisserant@0: {
etisserant@0: P0_PINSEL0 = 0x00000000;
etisserant@0: P0_PINSEL1 = 0x00000000;
etisserant@0: P1_PINSEL2 = 0x00000000;
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0: int lpc2138_printf(void)
etisserant@0: {
etisserant@0: return lpc2138_fprintf(stdout);
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0: int lpc2138_printf_pins(void)
etisserant@0: {
etisserant@0: return lpc2138_fprintf_pins(stdout);
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0: int lpc2138_fprintf(FILE *stream)
etisserant@0: {
etisserant@0: return fprintf(stream,
etisserant@0: "[p0=0x%08X,p0_iodir=0x%08X,p0_pinsel0=0x%08X,p0_pinsel1=0x%08X," \
etisserant@0: "p1=0x%08X,p1_iodir=0x%08X,p1_pinsel2=0x%08X]",
etisserant@0: P0_IOPIN, P0_IODIR, P0_PINSEL0, P0_PINSEL1,
etisserant@0: P1_IOPIN, P1_IODIR, P1_PINSEL2);
etisserant@0: }
etisserant@0:
etisserant@0: int lpc2138_fprintf_pins(FILE *stream)
etisserant@0: {
etisserant@0: return fprintf(stream,
etisserant@0: "[cs_s1d13706=0x%X," \
etisserant@0: "cs_sja1000=0x%X," \
etisserant@0: "wait=0x%X," \
etisserant@0: "bhe=0x%X," \
etisserant@0: "interrupt_sja1000=0x%X," \
etisserant@0: "redgreenled=0x%X," \
etisserant@0: "ale=0x%X," \
etisserant@0: "rd=0x%X," \
etisserant@0: "wr=0x%X," \
etisserant@0: "data=0x%X," \
etisserant@0: "addresses=0x%X]",
etisserant@0: lpc2138_cs_s1d13706_get(),
etisserant@0: lpc2138_cs_sja1000_get(),
etisserant@0: lpc2138_wait_get(),
etisserant@0: lpc2138_bhe_get(),
etisserant@0: lpc2138_redgreenled_get(),
etisserant@0: lpc2138_interrupt_sja1000_get(),
etisserant@0: lpc2138_ale_get(),
etisserant@0: lpc2138_rd_get(),
etisserant@0: lpc2138_wr_get(),
etisserant@0: lpc2138_data_get(),
etisserant@0: lpc2138_addresses_get());
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0: /*
etisserant@0: SJA1000 interface
etisserant@0: */
etisserant@0:
etisserant@0: unsigned char sja1000_read(unsigned char addr8)
etisserant@0: {
etisserant@0: unsigned char data;
etisserant@0:
etisserant@0: lpc2138_data_set_mode(LPC2138_MODE_OUTPUT);
etisserant@0: lpc2138_ale_set(1);
etisserant@0: lpc2138_data_set(addr8);
etisserant@0:
etisserant@0: lpc2138_ale_set(0);
etisserant@0: lpc2138_data_set_mode(LPC2138_MODE_INPUT);
etisserant@0:
etisserant@0: lpc2138_cs_sja1000_set(0);
etisserant@0: lpc2138_rd_set(0);
etisserant@0: data = lpc2138_data_get();
etisserant@0: data = lpc2138_data_get();
etisserant@0:
etisserant@0: lpc2138_rd_set(1);
etisserant@0:
etisserant@0: lpc2138_cs_sja1000_set(1);
etisserant@0: lpc2138_data_set_mode(LPC2138_MODE_OUTPUT);
etisserant@0:
etisserant@0: return data;
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0: void sja1000_write(unsigned char addr8, unsigned char data)
etisserant@0: {
etisserant@0: lpc2138_data_set_mode(LPC2138_MODE_OUTPUT);
etisserant@0:
etisserant@0: lpc2138_data_set(addr8);
etisserant@0:
etisserant@0: lpc2138_ale_set(1);
etisserant@0:
etisserant@0: lpc2138_ale_set(0);
etisserant@0: lpc2138_cs_sja1000_set(0);
etisserant@0: lpc2138_wr_set(0);
etisserant@0:
etisserant@0: lpc2138_data_set(data);
etisserant@0:
etisserant@0: lpc2138_wr_set(1);
etisserant@0: lpc2138_cs_sja1000_set(1);
etisserant@0:
etisserant@0: }
etisserant@0:
etisserant@0: /*
etisserant@0: FLASH interface
etisserant@0: */
etisserant@0:
etisserant@0: /************************************************************************/
etisserant@0: /* */
etisserant@0: /* function: */
etisserant@0: /* void ee_erase(unsigned int command_ee,unsigned int result_ee[]) */
etisserant@0: /* */
etisserant@0: /* type: void */
etisserant@0: /* */
etisserant@0: /* parameters: */
etisserant@0: /* command_ee - Not used. */
etisserant@0: /* result_ee[0] - Returns a response to the last IAP command used. */
etisserant@0: /* 0 - EEPROM successfully erased. */
etisserant@0: /* For all other response values, see microcontroller */
etisserant@0: /* User Manual, IAP Commands and Status Codes Summary. */
etisserant@0: /* result_ee[1] - Not used. */
etisserant@0: /* */
etisserant@0: /* version: 1.1 (01/27/2006) */
etisserant@0: /* */
etisserant@0: /* constants defined in LPC2k_ee.h used in this function: */
etisserant@0: /* EE_SEC_L - microcontroller's Flash sector where EEPROM begins */
etisserant@0: /* EE_SEC_H - microcontroller's Flash sector where EEPROM ends */
etisserant@0: /* EE_CCLK - microcontroller's system clock (cclk) */
etisserant@0: /* */
etisserant@0: /* description: */
etisserant@0: /* This function erases LPC2000 on-chip Flash sectors selected to act */
etisserant@0: /* as an EEPROM. All Flash sectors between EE_SEC_L abd EE_SEC_H */
etisserant@0: /* (including these sectors) will be erased using the In Application */
etisserant@0: /* Programming (IAP) routines (see User Manual for more details). */
etisserant@0: /* Also, this function disables all interrupts while erasing the */
etisserant@0: /* EEPROM. If this is not needed, three lines of the ee_erase */
etisserant@0: /* subroutine can simply be commented-out without affecting the */
etisserant@0: /* routine performance at all. */
etisserant@0: /* */
etisserant@0: /* revision history: */
etisserant@0: /* - Rev. 1.1 adds interrupt disable feature. */
etisserant@0: /* */
etisserant@0: /************************************************************************/
etisserant@0: void iat_flash_erase(unsigned int command_ee,unsigned int result_ee[])
etisserant@0: {
etisserant@0: unsigned int command_iap[5];
etisserant@0: unsigned int result_iap[3];
etisserant@0: unsigned long int enabled_interrupts;
etisserant@0:
etisserant@0: enabled_interrupts = VICIntEnable; //disable all interrupts
etisserant@0: VICIntEnClr = enabled_interrupts;
etisserant@0:
etisserant@0: command_iap[0]=50; // prepare sectors from EE_SEC_L to EE_SEC_H for erase
etisserant@0: command_iap[1]=EE_SEC_L;
etisserant@0: command_iap[2]=EE_SEC_H;
etisserant@0: iap_entry=(IAP) IAP_LOCATION;
etisserant@0: iap_entry(command_iap,result_iap);
etisserant@0:
etisserant@0: command_iap[0]=52; // erase sectors from EE_SEC_L to EE_SEC_H
etisserant@0: command_iap[1]=EE_SEC_L;
etisserant@0: command_iap[2]=EE_SEC_H;
etisserant@0: command_iap[3]=EE_CCLK;
etisserant@0: iap_entry=(IAP) IAP_LOCATION;
etisserant@0: iap_entry(command_iap,result_iap);
etisserant@0:
etisserant@0: command_iap[0]=53; // blankcheck sectors from EE_SEC_L to EE_SEC_H
etisserant@0: command_iap[1]=EE_SEC_L;
etisserant@0: command_iap[2]=EE_SEC_H;
etisserant@0: iap_entry=(IAP) IAP_LOCATION;
etisserant@0: iap_entry(command_iap,result_iap);
etisserant@0:
etisserant@0: VICIntEnable = enabled_interrupts; //restore interrupt enable register
etisserant@0:
etisserant@0: result_ee[0]=result_iap[0];
etisserant@0: return;
etisserant@0: }
etisserant@0:
etisserant@0: /************************************************************************/
etisserant@0: /* */
etisserant@0: /* function: */
etisserant@0: /* void ee_write(unsigned int command_ee,unsigned int result_ee[]) */
etisserant@0: /* */
etisserant@0: /* type: void */
etisserant@0: /* */
etisserant@0: /* parameters: */
etisserant@0: /* command_ee - An address of a content of ee_data type that has */
etisserant@0: /* to be programmed into EEPROM. */
etisserant@0: /* result_ee[0] - Returns a response to the last IAP command used. */
etisserant@0: /* 0 - data successfully programmed in EEPROM. */
etisserant@0: /* 501 - no space in EEPROM to program data. */
etisserant@0: /* For all other response values, see microcontroller */
etisserant@0: /* User Manual, IAP Commands and Status Codes Summary. */
etisserant@0: /* result_ee[1] - Not used. */
etisserant@0: /* */
etisserant@0: /* version: 1.1 (01/27/2006) */
etisserant@0: /* */
etisserant@0: /* constants defined in LPC2k_ee.h used in this function: */
etisserant@0: /* EE_BUFFER_SIZE - IAP buffer size; must be 256 or 512 */
etisserant@0: /* NO_SPACE_IN_EEPROM - EEPROM is full and no data can be programmed */
etisserant@0: /* EE_BUFFER_MASK - parameter used for interfacing with IAP */
etisserant@0: /* EE_REC_SIZE - ee_data structure size in bytes */
etisserant@0: /* EE_SEC_L - micro's Flash sector where EEPROM begins */
etisserant@0: /* EE_SEC_H - micro's Flash sector where EEPROM ends */
etisserant@0: /* EE_CCLK - micro's system clock (cclk) */
etisserant@0: /* */
etisserant@0: /* description: */
etisserant@0: /* This function writes a single structure of ee_data type into the */
etisserant@0: /* EEPROM using an In Application Programming (IAP) routines (see */
etisserant@0: /* User Manual for more details). command_ee contains an address of */
etisserant@0: /* this structure. EEPROM is scanned for the last (if any) record */
etisserant@0: /* identifier (EE_REC_ID), and a new record is added next to it. */
etisserant@0: /* Also, this function disables all interrupts while erasing the */
etisserant@0: /* EEPROM. If this is not needed, three lines of the ee_write */
etisserant@0: /* subroutine can simply be commented-out without affecting the */
etisserant@0: /* routine performance at all. */
etisserant@0: /* */
etisserant@0: /* revision history: */
etisserant@0: /* - Rev. 1.1 fixes a bug related to verifying a content written into */
etisserant@0: /* the EEPROM. 1.0 was reporting missmatch even when there were no */
etisserant@0: /* problems at all. */
etisserant@0: /* Rev. 1.1 adds interrupt disable feature. */
etisserant@0: /* */
etisserant@0: /************************************************************************/
etisserant@0:
etisserant@0: void iat_flash_write_page(unsigned int addr)
etisserant@0: {
etisserant@0: unsigned long int enabled_interrupts;
etisserant@0: // unsigned char ee_buffer[16];
etisserant@0: unsigned int command_iap[5], result_iap[3];
etisserant@0:
etisserant@0: enabled_interrupts = VICIntEnable; //disable all interrupts
etisserant@0: VICIntEnClr = enabled_interrupts;
etisserant@0:
etisserant@0: iap_entry = (IAP) IAP_LOCATION;
etisserant@0:
etisserant@0: // prepare sectors from EE_SEC_L to EE_SEC_H for erase
etisserant@0: command_iap[0] = 50;
etisserant@0: command_iap[1] = EE_SEC_L;
etisserant@0: command_iap[2] = EE_SEC_H;
etisserant@0: iap_entry(command_iap, result_iap);
etisserant@0:
etisserant@0: // copy RAM to flash/eeprom
etisserant@0: command_iap[0] = 51;
etisserant@0: command_iap[1] = (unsigned int) (addr & EE_START_MASK); // 256 kb boundary
etisserant@0: command_iap[2] = (unsigned int) (data_page); // should be on a word boundary
etisserant@0: command_iap[3] = 256;
etisserant@0: command_iap[4] = EE_CCLK;
etisserant@0: iap_entry(command_iap, result_iap);
etisserant@0:
etisserant@0: #if 0
etisserant@0: // compare RAM and flash/eeprom
etisserant@0: command_iap[0] = 56;
etisserant@0: command_iap[1] = (unsigned int) data;
etisserant@0: command_iap[2] = addr;
etisserant@0: command_iap[3] = dlen;
etisserant@0: iap_entry(command_iap, result_iap);
etisserant@0: #endif
etisserant@0:
etisserant@0: VICIntEnable = enabled_interrupts; //restore interrupt enable register
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0: /************************************************************************/
etisserant@0: /* */
etisserant@0: /* function: */
etisserant@0: /* void ee_read(unsigned int command_ee,unsigned int result_ee[]) */
etisserant@0: /* */
etisserant@0: /* type: void */
etisserant@0: /* */
etisserant@0: /* parameters: */
etisserant@0: /* command_ee - Not used. */
etisserant@0: /* result_ee[0] - Returns a response. */
etisserant@0: /* 0 - data successfully found in EEPROM. */
etisserant@0: /* 500 - no data/records available in EEPROM. */
etisserant@0: /* result_ee[1] - an address of the last record of ee_data type */
etisserant@0: /* in EEPROM. */
etisserant@0: /* */
etisserant@0: /* version: 1.1 (01/27/2006) */
etisserant@0: /* */
etisserant@0: /* constants defined in LPC2k_ee.h used in this function: */
etisserant@0: /* NO_RECORDS_AVAILABLE - EEPROM is empty/no records identifiable */
etisserant@0: /* with a record identifier (EE_REC_ID) found */
etisserant@0: /* EE_ADR_L - micro's Flash address from where EEPROM begins */
etisserant@0: /* EE_REC_SIZE - size (in bytes) of a ee_data structure */
etisserant@0: /* */
etisserant@0: /* description: */
etisserant@0: /* This function scans an EEPROM content looking for the last record */
etisserant@0: /* that can be identified with a record identifier (EE_REC_ID). When */
etisserant@0: /* such data is found, its address is passed as result_ee[1]. */
etisserant@0: /* */
etisserant@0: /* revision history: */
etisserant@0: /* - Rev. 1.0 had problems with accessing the last record in a fully */
etisserant@0: /* occupied EEPROM. Rev. 1.1 fixes this. */
etisserant@0: /* */
etisserant@0: /************************************************************************/
etisserant@0: void iat_flash_read_page(unsigned int addr)
etisserant@0: {
etisserant@0: memcpy(data_page, (unsigned int *)addr, sizeof(unsigned int)*64);
etisserant@0: }
etisserant@0:
etisserant@0:
etisserant@0:
etisserant@0: