diff --git a/conf/modules/lcd_dogm.xml b/conf/modules/lcd_dogm.xml new file mode 100644 index 0000000000..1a1e7518b0 --- /dev/null +++ b/conf/modules/lcd_dogm.xml @@ -0,0 +1,15 @@ + + + + + +
+ +
+ + + + + + + diff --git a/sw/airborne/arch/lpc21/modules/display/lcd_dogm_hw.c b/sw/airborne/arch/lpc21/modules/display/lcd_dogm_hw.c new file mode 100644 index 0000000000..a098c602df --- /dev/null +++ b/sw/airborne/arch/lpc21/modules/display/lcd_dogm_hw.c @@ -0,0 +1,98 @@ +/* + * $Id$ + * + * Copyright (C) 2009 ENAC + * + * This file is part of paparazzi. + * + * paparazzi 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, or (at your option) + * any later version. + * + * paparazzi 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 paparazzi; see the file COPYING. If not, write to + * the Free Software Foundation, 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + */ + +#include "LPC21xx.h" +#include "interrupt_hw.h" +#include "lcd_dogm_hw.h" + + +static void SPI1_ISR(void) __attribute__((naked)); + +#define PINSEL1_SCK (2 << 2) +#define PINSEL1_MOSI (2 << 6) +#define PINSEL1_SSEL (2 << 8) + +/* SSPCR0 settings */ +#define SSP_DSS 0x07 << 0 /* data size : 8 bits */ +#define SSP_FRF 0x00 << 4 /* frame format : SPI */ +#define SSP_CPOL 0x01 << 6 /* clock polarity : idle high */ +#define SSP_CPHA 0x01 << 7 /* clock phase : low->high */ +#define SSP_SCR 0x1F << 8 /* serial clock rate : 29.3kHz, SSP input clock / 16 */ + +/* SSPCR1 settings */ +#define SSP_LBM 0x00 << 0 /* loopback mode : disabled */ +#define SSP_SSE 0x00 << 1 /* SSP enable : disabled */ +#define SSP_MS 0x00 << 2 /* master slave mode : master */ +#define SSP_SOD 0x00 << 3 /* slave output disable : don't care when master */ + +#ifndef SSPCPSR_VAL +#define SSPCPSR_VAL 0x04 +#endif + + +void lcd_spi_tx(uint8_t data) { + SpiClearRti(); + SpiEnableRti(); + SpiEnable(); + SSPDR = data; +} + +void lcd_dogm_init_hw( void ) { + /* setup pins for SSP (SCK, MOSI) */ + PINSEL1 |= PINSEL1_SCK | PINSEL1_MOSI; + + /* setup SSP */ + SSPCR0 = SSP_DSS | SSP_FRF | SSP_CPOL | SSP_CPHA | SSP_SCR; + SSPCR1 = SSP_LBM | SSP_MS | SSP_SOD; + SSPCPSR = SSPCPSR_VAL; /* Prescaler */ + + /* SS, RS pin is output */ + SetBit(LCDDOGM_SS_IODIR, LCDDOGM_SS_PIN); + SetBit(LCDDOGM_RS_IODIR, LCDDOGM_RS_PIN); + /* unselected lcd */ + lcddogmUnselect(); + + /* Configure interrupt vector for SPI */ + VICIntSelect &= ~VIC_BIT(VIC_SPI1); /* SPI1 selected as IRQ */ + VICIntEnable = VIC_BIT(VIC_SPI1); /* SPI1 interrupt enabled */ + VICVectCntl7 = VIC_ENABLE | VIC_SPI1; + VICVectAddr7 = (uint32_t)SPI1_ISR; /* address of the ISR */ +} + +void SPI1_ISR(void) { + ISR_ENTRY(); + + while (bit_is_set(SSPSR, RNE)) { + uint16_t foo __attribute__ ((unused)); + foo = SSPDR; + } + SpiClearRti(); /* clear interrupt */ + SpiDisableRti(); + SpiDisable (); + lcddogmUnselect(); + + VICVectAddr = 0x00000000; /* clear this interrupt from the VIC */ + ISR_EXIT(); +} + diff --git a/sw/airborne/arch/lpc21/modules/display/lcd_dogm_hw.h b/sw/airborne/arch/lpc21/modules/display/lcd_dogm_hw.h new file mode 100644 index 0000000000..3897cf2a0d --- /dev/null +++ b/sw/airborne/arch/lpc21/modules/display/lcd_dogm_hw.h @@ -0,0 +1,48 @@ +#ifndef LCD_DOGM_HW_H +#define LCD_DOGM_HW_H + +#include +#include "std.h" +#include "spi_hw.h" +#include "led.h" + + +#define LCDDOGM_SS_PORT 0 +#define LCDDOGM_SS_PIN 20 + +#define LCDDOGM_RS_PORT 0 +#define LCDDOGM_RS_PIN 16 + +#define LCDDOGM_IO__(port, reg) IO ## port ## reg +#define LCDDOGM_IO_(port, reg) LCDDOGM_IO__(port, reg) + +#define LCDDOGM_SS_IOCLR LCDDOGM_IO_(LCDDOGM_SS_PORT, CLR) +#define LCDDOGM_SS_IODIR LCDDOGM_IO_(LCDDOGM_SS_PORT, DIR) +#define LCDDOGM_SS_IOSET LCDDOGM_IO_(LCDDOGM_SS_PORT, SET) + +#define LCDDOGM_RS_IOCLR LCDDOGM_IO_(LCDDOGM_RS_PORT, CLR) +#define LCDDOGM_RS_IODIR LCDDOGM_IO_(LCDDOGM_RS_PORT, DIR) +#define LCDDOGM_RS_IOSET LCDDOGM_IO_(LCDDOGM_RS_PORT, SET) + +#define lcddogmSelect() { \ + SetBit(LCDDOGM_SS_IOCLR, LCDDOGM_SS_PIN); \ + } + +#define lcddogmUnselect() { \ + SetBit(LCDDOGM_SS_IOSET, LCDDOGM_SS_PIN); \ + } + +#define lcddogmCmdMode() { \ + SetBit(LCDDOGM_RS_IOCLR, LCDDOGM_RS_PIN); \ + } + +#define lcddogmDataMode() { \ + SetBit(LCDDOGM_RS_IOSET, LCDDOGM_RS_PIN); \ + } + +extern void lcd_spi_tx(uint8_t data); +extern void lcd_dogm_init_hw( void ); + + +#endif /* LCD_DOGM_HW_H */ + diff --git a/sw/airborne/modules/display/lcd_dogm.c b/sw/airborne/modules/display/lcd_dogm.c new file mode 100644 index 0000000000..c3784dec9b --- /dev/null +++ b/sw/airborne/modules/display/lcd_dogm.c @@ -0,0 +1,127 @@ +/* + * $Id$ + * + * Copyright (C) 2010 Martin Mueller + * + * This file is part of paparazzi. + * + * paparazzi 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, or (at your option) + * any later version. + * + * paparazzi 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 paparazzi; see the file COPYING. If not, write to + * the Free Software Foundation, 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + */ + +/* + initial version, needs polishing! + + 3 line LCD at 3.3V + + EA DOGM163 <-> LPC2148 SPI1 + + SI MOSI + CLK SCK + RS DRDY (used to switch cmd/data) + CSB SSEL + +*/ + +#include "display/lcd_dogm_hw.h" +#include "lcd_dogm.h" + + +void lcd_cmd(uint8_t command) { + uint32_t i; + for (i=0;i<20000;i++); + lcddogmSelect(); + lcddogmCmdMode(); + lcd_spi_tx(command); +} + +void lcd_data(uint8_t data) { + uint32_t i; + for (i=0;i<100000;i++); + lcddogmSelect(); + lcddogmDataMode(); + lcd_spi_tx(data); +} + +void lcd_dogm_init( void ) { + uint32_t i; + + for (i=0;i<100000;i++); + lcd_dogm_init_hw(); + + /* Write configuration */ + lcd_cmd(DOGM_FUN_SET_1); + lcd_cmd(DOGM_BIAS_SET); + lcd_cmd(DOGM_PWR_CTRL); + lcd_cmd(DOGM_FOLLOWER); + lcd_cmd(DOGM_CONTRAST); + lcd_cmd(DOGM_DISP_ON); + lcd_cmd(DOGM_CLEAR); + lcd_cmd(DOGM_ENTRY_MODE); + + /* sample data */ + lcd_data('C'); + lcd_data('i'); + lcd_data('r'); + lcd_data('c'); + lcd_data('l'); + lcd_data('e'); + lcd_data('C'); + lcd_data('W'); + lcd_data(' '); + lcd_data('9'); + lcd_data('9'); + lcd_data(' '); + lcd_data('1'); + lcd_data('0'); + lcd_data('.'); + lcd_data('3'); + + lcd_data('1'); + lcd_data('2'); + lcd_data('.'); + lcd_data('6'); + lcd_data(' '); + lcd_data('M'); + lcd_data(' '); + lcd_data('1'); + lcd_data('2'); + lcd_data('+'); + lcd_data('3'); + lcd_data(' '); + lcd_data('1'); + lcd_data('4'); + lcd_data('9'); + lcd_data('3'); + + lcd_data('o'); + lcd_data('k'); + lcd_data(' '); + lcd_data('3'); + lcd_data(' '); + lcd_data('0'); + lcd_data('2'); + lcd_data('1'); + lcd_data(':'); + lcd_data('3'); + lcd_data('4'); + lcd_data(' '); + lcd_data('1'); + lcd_data('5'); + lcd_data('0'); + lcd_data('0'); +} + diff --git a/sw/airborne/modules/display/lcd_dogm.h b/sw/airborne/modules/display/lcd_dogm.h new file mode 100644 index 0000000000..8dfa74d1fb --- /dev/null +++ b/sw/airborne/modules/display/lcd_dogm.h @@ -0,0 +1,25 @@ +#ifndef LCD_DOGM_H +#define LCD_DOGM_H + +#include +#include "std.h" +#include "spi_hw.h" +#include "led.h" + +/* EA DOGM163, 3 line LCD at 3.3V */ +#define DOGM_FUN_SET_1 0x39 +#define DOGM_BIAS_SET 0x15 +#define DOGM_PWR_CTRL 0x55 +#define DOGM_FOLLOWER 0x6E +#define DOGM_CONTRAST 0x70 +#define DOGM_FUN_SET_2 0x38 +#define DOGM_DISP_ON 0x0C +#define DOGM_CLEAR 0x01 +#define DOGM_ENTRY_MODE 0x06 + +extern void lcd_cmd(uint8_t command); +extern void lcd_data(uint8_t data); +extern void lcd_dogm_init( void ); + +#endif /* LCD_DOGM_H */ +