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The SLCD driver is now fully functional for Sure PIC32MX board

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This commit is contained in:
Gregory Nutt 2013-05-27 11:39:13 -06:00
parent 157789e373
commit b97a816998
9 changed files with 346 additions and 98 deletions
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3
ChangeLog
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@ -4814,3 +4814,6 @@
* include/nuttx/lcd/slcd_ioctl.h and all SLCD drivers: Rename geometry
structure to attributes; Move MAX contrast to attributes. Add
attribute and ioctl commands to get and set LCD brightness (2013-5-27).
* configs/sure-pic32mx/pic32mx_lcd1602.c: This driver appears to
fully functional (at least to the extent that it has been tested)
(2013-5-27).

11
configs/pcblogic-pic32mx/README.txt
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@ -161,7 +161,7 @@ MAX3232 Connection
GND -- POWER POINT: GND
Vcc -- POWER POINT: Vdd (3.3V) -- Or P32_VBUS (+5V)
Or +5V from a USB PC port.
Toolchains
==========
@ -252,7 +252,7 @@ Toolchains
Windows Native Toolchains
-------------------------
NOTE: There are several limitations to using a Windows based toolchain in a
Cygwin environment. The three biggest are:
@ -478,7 +478,7 @@ PIC32MX Configuration Options
CONFIG_PIC32MX_CODEWP - Default 1 (disabled)
DEVCFG1: (All settings determined by selections in board.h)
DEVCFG2: (All settings determined by selections in board.h)
DEVCFG3:
DEVCFG3:
CONFIG_PIC32MX_USBIDO - USB USBID Selection. Default 1 if USB enabled
(USBID pin is controlled by the USB module), but 0 (GPIO) otherwise.
CONFIG_PIC32MX_VBUSIO - USB VBUSON Selection (Default 1 if USB enabled
@ -670,7 +670,10 @@ Configuration sub-directories
NOTES:
a. I do not have the LCD1602 working. I may just be getting lost in the
tangle of wires or perhaps there is something fundamentally wrong with
the code.
the code. If you decide to work on this, you might want to consider
the working, big-bang version of this driver at configs/sure-pic32mx/src/pic32mx_lcd1602.c.
A bit-bang driver is probably more appropriate for such a low performance
device (and a LOT easier to debug).
b. At this point in time, testing of the SLCD is very limited because
there is not much in apps/examples/slcd. Basically driver with a working
test setup and ready to be tested and debugged.

32
configs/sure-pic32mx/README.txt
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@ -318,7 +318,7 @@ Toolchains
Windows Native Toolchains
-------------------------
NOTE: There are several limitations to using a Windows based toolchain in a
Cygwin environment. The three biggest are:
@ -423,6 +423,8 @@ LCD1602
46 INT0/RD0 16. K Transistor circuit driven by PWM1
--------------------- ---------- ----------------------------------
Vbus power also requires Vbuson/AN5/RB5
PIC32MX Configuration Options
=============================
@ -455,7 +457,7 @@ PIC32MX Configuration Options
CONFIG_ARCH_BOARD=sure-pic32mx
CONFIG_ARCH_DBDP11215 Distinguishes the DB_DP11215 PIC32 Storage
CONFIG_ARCH_DBDP11215 Distinguishes the DB_DP11215 PIC32 Storage
Demo Board
CONFIG_ARCH_DBDP11212 Distingustes the DB-DP11212 PIC32 General
@ -551,7 +553,7 @@ PIC32MX Configuration Options
CONFIG_PIC32MX_CODEWP - Default 1 (disabled)
DEVCFG1: (All settings determined by selections in board.h)
DEVCFG2: (All settings determined by selections in board.h)
DEVCFG3:
DEVCFG3:
CONFIG_PIC32MX_USBIDO - USB USBID Selection. Default 1 if USB enabled
(USBID pin is controlled by the USB module), but 0 (GPIO) otherwise.
CONFIG_PIC32MX_VBUSIO - USB VBUSON Selection (Default 1 if USB enabled
@ -698,7 +700,7 @@ Where <subdir> is one of the following:
Several USB device configurations can be enabled and included
as NSH built-in built in functions. All require the following
basic setup in your .config to enable USB device support:
Drivers:
CONFIG_USBDEV=y : Enable basic USB device support
@ -717,9 +719,9 @@ Where <subdir> is one of the following:
CONFIG_PL2303=y : Enable the Prolifics PL2303 emulation
CONFIG_CDCACM=y : or the CDC/ACM serial driver (not both)
examples/cdcacm - The examples/cdcacm program can be included as an
examples/cdcacm - The examples/cdcacm program can be included as an
function by uncommenting the following line in the appconfig file:
Application Configuration->Examples:
CONFIG_EXAMPLES_CDCACM=y : Select apps/examples/cdcacm
@ -766,28 +768,34 @@ Where <subdir> is one of the following:
4. To enable LCD1602 support:
Device Drivers:
Device Drivers ->LCD Driver Support:
CONFIG_LCD=y : Enable LCD menus
CONFIG_LCD_LCD1602=y : Select LCD1602
CONFIG_LCD_MAXCONTRAST=255 : (Or any large-ish value that you prefer)
CONFIG_LCD_MAXPOWER=255 : (Or any large-ish value that you prefer)
Library Routines:
CONFIG_LIB_SLCDCODEC=y : Enable the SLCD CODEC
System Type -> PIC32MX Peripheral Support:
CONFIG_PIC32MX_PMP=y : Enable PMP support
NOTE that is is not necessary to select the PMP peripheral; this LCD
driver is a bit-bang driver that just happens to use the PMP pins as
GPIOS.
To enable apps/examples/slcd to test the LCD:
Application Configuration:
Application Configuration -> NSH Library:
CONFIG_NSH_ARCHINIT=y : Needed to initialize the SLCD
Application Configuration -> Examples:
CONFIG_EXAMPLES_SLCD=y : Enable apps/examples/slcd use /dev/lcd1602
CONFIG_EXAMPLES_SLCD_DEVNAME="/dev/lcd1602"
To enable LCD debug output:
Build Setup:
Build Setup -> Debug Options:
CONFIG_DEBUG=y : Enable debug features
CONFIG_DEBUG_VERBOSE=y : Enable LCD debug
CONFIG_DEBUG_VERBOSE=y : Enable verbose debug output
CONFIG_DEBUG_LCD=y : Enable LCD debug output
NOTES:
a. I do not have the LCD1602 working. I may just be getting lost in the

5
configs/sure-pic32mx/src/pic32mx_autoleds.c
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@ -79,11 +79,6 @@
* LED_PANIC 5 N/C N/C N/C ON N/C N/C N/C OFF
*/
#define GPIO_USB_LED (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTD|GPIO_PIN7)
#define GPIO_SD_LED (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTD|GPIO_PIN6)
#define GPIO_FLASH_LED (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTF|GPIO_PIN0)
#define GPIO_ERROR_LED (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTF|GPIO_PIN1)
/* LED Management Definitions ***********************************************/
#define LED_OFF 0

327
configs/sure-pic32mx/src/pic32mx_lcd1602.c
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@ -37,7 +37,7 @@
*
****************************************************************************/
/* LCD pin mapping (see configs/pcblogic-pic32mx/README.txt)
/* LCD pin mapping (see configs/sure-pic32mx/README.txt)
*
* --------------------- ---------- ----------------------------------
* PIC32 Sure JP1 Sure Signal Description
@ -61,6 +61,8 @@
* 15. A +5V_DUSB
* 46 INT0/RD0 16. K Transistor circuit driven by PWM1
* --------------------- ---------- ----------------------------------
*
* Vbus power also requires Vbuson/AN5/RB5
*/
/****************************************************************************
@ -87,7 +89,7 @@
#include <nuttx/lcd/slcd_codec.h>
#include "up_arch.h"
#include "pic32mx-pmp.h"
#include "pic32mx-ioport.h"
#include "pic32mx-int.h"
#include "pic32mx-internal.h"
#include "sure-pic32mx.h"
@ -99,10 +101,6 @@
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_PIC32MX_PMP
# error "CONFIG_PIC32MX_PMP is required to use the LCD"
#endif
#ifndef CONFIG_LCD_MAXCONTRAST
# define CONFIG_LCD_MAXCONTRAST 100
#endif
@ -135,17 +133,14 @@
# define MAX(a,b) (a > b ? a : b)
#endif
/* Pin configuration ********************************************************/
/* RB15, RS -- High values selects data */
#define GPIO_LCD_RS (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTB|GPIO_PIN15)
/* LCD **********************************************************************/
#define LCD_NROWS 2
#define LCD_NCOLUMNS 16
#define LCD_NCHARS (LCD_NROWS * LCD_NCOLUMNS)
#define NOP __asm__ __volatile__ ("nop");
/* Debug ********************************************************************/
#ifdef CONFIG_DEBUG_LCD
@ -173,9 +168,10 @@ struct lcd_instream_s
struct lcd1602_2
{
bool initialized; /* True: Completed initialization sequence */
uint8_t currow; /* Current row */
uint8_t curcol; /* Current column */
bool initialized; /* True: Completed initialization sequence */
uint8_t currow; /* Current row */
uint8_t curcol; /* Current column */
uint8_t brightness; /* Current brightness */
};
/****************************************************************************
@ -195,9 +191,13 @@ static void lcd_dumpstream(FAR const char *msg,
/* Internal functions */
static int lcd_getstream(FAR struct lib_instream_s *instream);
static void lcd_brightness(uint8_t brightness);
static void lcd_shortdelay(int delay);
static void lcd_wrcommand(uint8_t cmd);
static void lcd_wrdata(uint8_t data);
static uint8_t lcd_rddata(void);
static uint8_t lcd_readstatus(void);
static void lcd_waitbusy(void);
static uint8_t lcd_readch(uint8_t row, uint8_t column);
static void lcd_writech(uint8_t ch, uint8_t row, uint8_t column);
static void lcd_appendch(uint8_t ch);
@ -312,6 +312,66 @@ static int lcd_getstream(FAR struct lib_instream_s *instream)
return EOF;
}
/****************************************************************************
* Name: lcd_brightness
*
* Description:
* Enable for disable LCD lighting.
*
****************************************************************************/
static void lcd_brightness(uint8_t brightness)
{
/* The LIGHT and COMP pins are label PWM1 and PWM2 and so are obviously
* intended to support modulated outputs. However, here for simplicity,
* they are just treated as on/off discretes outputs.
*/
if (brightness > 0)
{
/* Turn the LCD light on */
pic32mx_gpiowrite(GPIO_LCD_LIGHT, true);
NOP;NOP;NOP;
pic32mx_gpiowrite(GPIO_LCD_COMP, true);
NOP;NOP;
pic32mx_gpiowrite(GPIO_LCD_PWR, true);
}
else
{
/* Turn the LCD light off */
pic32mx_gpiowrite(GPIO_LCD_PWR, false);
pic32mx_gpiowrite(GPIO_LCD_COMP, false);
pic32mx_gpiowrite(GPIO_LCD_LIGHT, false);
}
g_lcd1602.brightness = brightness;
}
/****************************************************************************
* Name: lcd_shortdelay
*
* Description:
* Small delays are needed to make some of the LCD operations work.
*
****************************************************************************/
static void lcd_shortdelay(int delay)
{
volatile int loop;
/* On a 32MHz MCU, this should amount to about 300NS per loop */
while (delay-- > 0)
{
for (loop = 0; loop < 1; loop++)
{
NOP;
}
}
}
/****************************************************************************
* Name: lcd_wrcommand
*
@ -322,13 +382,28 @@ static int lcd_getstream(FAR struct lib_instream_s *instream)
static void lcd_wrcommand(uint8_t cmd)
{
/* Address bit A0 is RS. Set the address latch to A0=0 */
/* Make sure that the LCD is available */
putreg32(1, PIC32MX_PMP_ADDRCLR);
lcd_waitbusy();
/* And write the command to the data out register */
/* Select DB0-15 as outputs (only DB-0-7 are actually used) */
putreg32((uint32_t)cmd, PIC32MX_PMP_DOUT);
putreg16(0, PIC32MX_IOPORTE_TRIS);
/* Set up to write the commond */
pic32mx_gpiowrite(GPIO_LCD_RS, false); /* Select command */
pic32mx_gpiowrite(GPIO_LCD_RW, false); /* Select write */
lcd_shortdelay(2);
pic32mx_gpiowrite(GPIO_LCD_E, true); /* Enable transfer */
lcd_shortdelay(1);
/* Write the command to the LCD */
putreg16(cmd, PIC32MX_IOPORTE_PORT);
lcd_shortdelay(1);
pic32mx_gpiowrite(GPIO_LCD_E, false);
}
/****************************************************************************
@ -341,13 +416,28 @@ static void lcd_wrcommand(uint8_t cmd)
static void lcd_wrdata(uint8_t data)
{
/* Address bit A0 is RS. Set the address latch to A0=1 */
/* Make sure that the LCD is available */
putreg32(1, PIC32MX_PMP_ADDRSET);
lcd_waitbusy();
/* And write the data to the data out register */
/* Select DB0-15 as outputs (only DB-0-7 are actually used) */
putreg32((uint32_t)data, PIC32MX_PMP_DOUT);
putreg16(0, PIC32MX_IOPORTE_TRIS);
/* Set up to write the data */
pic32mx_gpiowrite(GPIO_LCD_RS, true); /* Select data */
pic32mx_gpiowrite(GPIO_LCD_RW, false); /* Select write */
lcd_shortdelay(2);
pic32mx_gpiowrite(GPIO_LCD_E, true); /* Enable transfer */
lcd_shortdelay(1);
/* Write the data to the LCD */
putreg16(data, PIC32MX_IOPORTE_PORT); /* Write the data */
lcd_shortdelay(1);
pic32mx_gpiowrite(GPIO_LCD_E, false);
}
/****************************************************************************
@ -360,13 +450,69 @@ static void lcd_wrdata(uint8_t data)
static uint8_t lcd_rddata(void)
{
/* Address bit A0 is RS. Set the address latch to A0=1 */
/* Make sure that the LCD is available */
putreg32(1, PIC32MX_PMP_ADDRSET);
lcd_waitbusy();
/* And read the data to the data in register */
/* Setup to read data */
return (uint8_t)getreg32(PIC32MX_PMP_DIN);
pic32mx_gpiowrite(GPIO_LCD_RS, true); /* Select data */
pic32mx_gpiowrite(GPIO_LCD_RW, true); /* Select read */
lcd_shortdelay(2);
pic32mx_gpiowrite(GPIO_LCD_E, true); /* Enable transfer */
lcd_shortdelay(1);
putreg16(0xff, PIC32MX_IOPORTE_TRISSET); /* Set DB0-7 as inputs */
pic32mx_gpiowrite(GPIO_LCD_E, false); /* Disable transfer */
/* Read the data from the LCD */
return (uint8_t)getreg16(PIC32MX_IOPORTE_PORT);
}
/****************************************************************************
* Name: lcd_readstatus
*
* Description:
* Read the DDRAM address and busy bit.
*
****************************************************************************/
static uint8_t lcd_readstatus(void)
{
uint8_t status;
/* Set up to read BUSY/AD information */
putreg16(0xff, PIC32MX_IOPORTE_TRISSET); /* Set DB0-7 as inputs */
pic32mx_gpiowrite(GPIO_LCD_RS, false); /* Select command */
pic32mx_gpiowrite(GPIO_LCD_RW, true); /* Select read */
lcd_shortdelay(2);
pic32mx_gpiowrite(GPIO_LCD_E, true); /* Enable transfer */
lcd_shortdelay(1);
/* Read the status from the LCD */
status = (uint8_t)getreg16(PIC32MX_IOPORTE_PORT);
lcd_shortdelay(1);
pic32mx_gpiowrite(GPIO_LCD_E, false);
return status;
}
/****************************************************************************
* Name: lcd_waitbusy
*
* Description:
* Check LCD status and wait until the BUSY flag is no long set.
*
****************************************************************************/
static void lcd_waitbusy(void)
{
while ((lcd_readstatus() & HD4478OU_BF) != 0);
}
/****************************************************************************
@ -843,11 +989,46 @@ static int lcd_ioctl(FAR struct file *filp, int cmd, unsigned long arg)
}
break;
/* SLCDIOC_GETBRIGHTNESS: Get the current brightness setting
*
* argument: Pointer type int that will receive the current brightness
* setting
*/
case SLCDIOC_GETBRIGHTNESS:
{
FAR int *brightness = (FAR int *)((uintptr_t)arg);
if (!brightness)
{
return -EINVAL;
}
*brightness = (int)g_lcd1602.brightness;
lcdvdbg("SLCDIOC_GETCONTRAST: brightness=%d\n", *brightness);
}
break;
/* SLCDIOC_SETBRIGHTNESS: Set the brightness to a new value
*
* argument: The new brightness value
*/
case SLCDIOC_SETBRIGHTNESS:
{
lcdvdbg("SLCDIOC_SETCONTRAST: arg=%ld\n", arg);
if (arg > CONFIG_LCD_MAXPOWER)
{
return -ERANGE;
}
lcd_brightness((uint8_t)arg);
}
break;
case SLCDIOC_SETBAR: /* SLCDIOC_SETBAR: Set bars on a bar display */
case SLCDIOC_GETCONTRAST: /* SLCDIOC_GETCONTRAST: Get the current contrast setting */
case SLCDIOC_SETCONTRAST: /* SLCDIOC_SETCONTRAST: Set the contrast to a new value */
case SLCDIOC_GETBRIGHTNESS: /* Get the current brightness setting */
case SLCDIOC_SETBRIGHTNESS: /* Set the brightness to a new value */
default:
return -ENOTTY;
}
@ -892,7 +1073,6 @@ static int lcd_poll(FAR struct file *filp, FAR struct pollfd *fds,
int up_lcd1602_initialize(void)
{
uint32_t regval;
int ret = OK;
/* Only initialize the driver once. */
@ -901,64 +1081,69 @@ int up_lcd1602_initialize(void)
{
lcdvdbg("Initializing\n");
/* PMP Master mode configuration */
/* Make sure that interrupts are disabled */
/* Configure GPIO pins */
putreg32(INT_PMP, PIC32MX_INT_IEC1CLR);
putreg16(0, PIC32MX_IOPORTE_TRIS); /* Set DB0-15 as outputs */
pic32mx_configgpio(GPIO_LCD_RS); /* RS: Selects commnand or data */
pic32mx_configgpio(GPIO_LCD_RW); /* RW: Selects read or write */
pic32mx_configgpio(GPIO_LCD_E); /* E: Starts transfer */
/* Stop and reset the PMP module and clear the mode and control registers. */
/* Configure LCD power in the OFF state */
putreg32(0, PIC32MX_PMP_MODE);
putreg32(0, PIC32MX_PMP_AEN);
putreg32(0, PIC32MX_PMP_CON);
putreg32(0, PIC32MX_PMP_ADDR);
pic32mx_configgpio(GPIO_LCD_LIGHT); /* K */
pic32mx_configgpio(GPIO_LCD_COMP); /* Vo */
pic32mx_configgpio(GPIO_LCD_PWR); /* Vbuson/AN5/RB5 controls +5V USB */
g_lcd1602.brightness = 0; /* Remember tht the light is off */
/* Set LCD timing values, PMP master mode 3, 8-bit mode, no address
* increment, and no interrupts.
/* A small delay is necessary between when GPIO_LCD_E was set up as an
* output with initial value of 0 and this operation. That delay should
* be well covered by the intervening GPIO configurations.
*/
regval = (PMP_MODE_WAITE_RD(0) | PMP_MODE_WAITM(3) | PMP_MODE_WAITB_1TPB |
PMP_MODE_MODE_MODE1 | PMP_MODE_MODE8 | PMP_MODE_INCM_NONE |
PMP_MODE_IRQM_NONE);
putreg32(regval, PIC32MX_PMP_MODE);
/* Enable the PMP for reading and writing
* PMRD/PMWR is active high (1=RD; 0=WR)
* PMENB is active high.
* No chip selects
* Address latch is active high
* Enable PMRD/PMWR, PMENB, and the PMP.
*/
regval = (PMP_CON_RDSP | PMP_CON_WRSP | PMP_CON_ALP |
PMP_CON_CSF_ADDR1415 | PMP_CON_PTRDEN | PMP_CON_PTWREN |
PMP_CON_ADRMUX_NONE | PMP_CON_ON);
putreg32(regval, PIC32MX_PMP_CON);
pic32mx_gpiowrite(GPIO_LCD_E, true); /* Enable transfer */
/* Configure and enable the LCD */
/* Wait > 15 milliseconds afer Vdd > 4.5V */
/* Delay for 4.1MS or more */
up_mdelay(100);
up_mdelay(5);
/* Select the 8-bit interface. BF cannot be checked before this command.
* This needs to be done a few times with some magic delays.
*
* Function set: 5x7 Style | N=2R | DL=8D
*/
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_DL8D | HD4478OU_FUNC_N1);
up_mdelay(50);
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_DL8D | HD4478OU_FUNC_N1);
up_udelay(50);
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_DL8D | HD4478OU_FUNC_N1);
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_DL8D | HD4478OU_FUNC_N1);
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_F5x7 | HD4478OU_FUNC_N1 | HD4478OU_FUNC_DL8D);
up_udelay(100); /* Delay more than 100uS */
/* Configure the display */
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_F5x7 | HD4478OU_FUNC_N1 | HD4478OU_FUNC_DL8D);
up_udelay(40); /* Delay more than 40uS */
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_F5x7 | HD4478OU_FUNC_N1 | HD4478OU_FUNC_DL8D);
lcd_waitbusy();
lcd_wrcommand(HD4478OU_DISPLAY); /* Display, cursor, and blink off */
lcd_wrcommand(HD4478OU_CLEAR); /* Clear the display */
lcd_wrcommand(HD4478OU_INPUT | HD4478OU_INPUT_INCR); /* Increment mode */
lcd_wrcommand(HD4478OU_DISPLAY | HD4478OU_DISPLAY_ON); /* Display on, cursor and blink off */
lcd_wrcommand(HD4478OU_DDRAM_AD(0)); /* Select DDRAM RAM AD=0 */
lcd_wrcommand(HD4478OU_FUNC | HD4478OU_FUNC_F5x7 | HD4478OU_FUNC_N1 | HD4478OU_FUNC_DL8D);
lcd_waitbusy();
/* Display ON, cursor OFF, blink OFF */
lcd_wrcommand(HD4478OU_DISPLAY | HD4478OU_DISPLAY_ON);
lcd_waitbusy();
/* Clear the display and home the cursor */
lcd_wrcommand(HD4478OU_CLEAR); /* Clear display */
lcd_waitbusy();
lcd_wrcommand(HD4478OU_RETURN); /* Return home: AC=0 */
lcd_waitbusy();
/* Entry Mode Set:
*
* - Increment address by one,
* - Shift cursor to right (display is not shifted)
*/
lcd_wrcommand(HD4478OU_INPUT | HD4478OU_INPUT_INCR);
/* Register the LCD device driver */

51
configs/sure-pic32mx/src/sure-pic32mx.h
View File

@ -47,6 +47,7 @@
****************************************************************************/
/* Configuration ************************************************************/
/* GPIO Pin Configurations **************************************************/
/* The Sure PIC32MX board has five LEDs. One (D4, lablel "Power") is not
* controllable by software. Four are controllable by software:
*
@ -54,8 +55,58 @@
* D8 "SD" Yellow RD6 Low illuminates
* D9 "Flash" Yellow RF0 Low illuminates
* D10 "Error" Red RF1 Low illuminates
*
*/
#define GPIO_USB_LED (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTD | GPIO_PIN7)
#define GPIO_SD_LED (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTD | GPIO_PIN6)
#define GPIO_FLASH_LED (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN0)
#define GPIO_ERROR_LED (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORTF | GPIO_PIN1)
/* LCD pin mapping (see configs/sure-pic32mx/README.txt)
*
* --------------------- ---------- ----------------------------------
* PIC32 Sure JP1 Sure Signal Description
* PIN SIGNAL NAME PIN NAME(s)
* --------------------- ---------- ----------------------------------
* 34 Vbus 1. +5V +5V VBUS device mode
* To GND via capacitor
* 2. GND GND
* 49 RD1 3. Vo Transistor circuit driven by PWM2
* 44 PMA0/AN15/RB15 4. RS PMA0, Selects registers
* 53 PMRD/RD5 5. RW PMRD/PMWR, Selects read or write
* 45 PMPCS1/RD11 6. E Starts data read/write
* 60 PMD0/RE0 7. DB0 PMD0
* 61 PMD1/RE1 8. DB1 PMD1
* 62 PMD2/RE2 9. DB2 PMD2
* 63 PMD3/RE3 10. DB3 PMD3
* 64 PMD4/RE4 11. DB4 PMD4
* 1 PMD5/RE5 12. DB5 PMD5
* 2 PMD6/RE6 13. DB6 PMD6
* 3 PMD7/RE7 14. DB7 PMD7
* 15. A +5V_DUSB
* 46 INT0/RD0 16. K Transistor circuit driven by PWM1
* --------------------- ---------- ----------------------------------
*
* Vbus power also requires Vbuson/AN5/RB5
*/
#define GPIO_LCD_RS (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTB | GPIO_PIN15)
#define GPIO_LCD_RW (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTD | GPIO_PIN5)
#define GPIO_LCD_E (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTD | GPIO_PIN11)
/* This pin drives the +5V needed by the LCD */
#define GPIO_LCD_PWR (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTB | GPIO_PIN5)
/* These pins are label PWM1 and PWM2 and so are obviously intended to
* support modulated outputs. However, here for simplicity, they are
* just treated as on/off discretes outputs.
*/
#define GPIO_LCD_LIGHT (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTD | GPIO_PIN0)
#define GPIO_LCD_COMP (GPIO_OUTPUT | GPIO_VALUE_ZERO | GPIO_PORTD | GPIO_PIN1)
/****************************************************************************
* Public Types
****************************************************************************/

2
configs/sure-pic32mx/usbnsh/Make.defs
View File

@ -46,7 +46,7 @@ ifeq ($(WINTOOL),y)
ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/scripts/ld.script}"
else
# Linux/Cygwin-native toolchain
# Linux/Cygwin-native toolchain
MKDEP = $(TOPDIR)/tools/mkdeps.sh
ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx

5
drivers/lcd/Kconfig
View File

@ -32,6 +32,7 @@ config LCD_MAXCONTRAST
config LCD_MAXPOWER
int "LCD maximum power"
default 255 if LCD_LCD1602
default 1
range 1 255
---help---
@ -91,7 +92,7 @@ config P14201_FRAMEBUFFER
endif
config LCD_NOKIA6100
bool "Nokia 6100 display support"
bool "Nokia 6100 display support"
default n
---help---
nokia6100.c. Supports the Nokia 6100 display with either the Philips
@ -307,7 +308,7 @@ config LCD_UG2864AMBAG01
bool "UG-2864AMBAG01 OLED Display Module"
default n
---help---
OLED Display Module, UG-2864AMBAG01, Univision Technology Inc.
OLED Display Module, UG-2864AMBAG01, Univision Technology Inc.
Required LCD driver settings:
LCD_MAXCONTRAST should be 255, but any value >0 and <=255 will be accepted.

8
include/nuttx/lcd/hd4478ou.h
View File

@ -51,7 +51,7 @@
*/
#define HD4478OU_CLEAR (0x01) /* Screen Clear, Set AC to 0 */
#define HD4478OU_RETURN (0x02) /* DDRAM AD=0, return */
#define HD4478OU_RETURN (0x03) /* DDRAM AD=0, return */
#define HD4478OU_INPUT (0x04) /* Set moving direction of cursor */
# define HD4478OU_INPUT_SHIFT (1 << 0) /* Shift */
# define HD4478OU_INPUT_INCR (1 << 1) /* Increment mode */
@ -65,7 +65,7 @@
# define HD4478OU_SHIFT_LEFT (0x00) /* Shift right */
# define HD4478OU_SHIFT_DISPLAY (1 << 3) /* Display shift */
# define HD4478OU_SHIFT_CURSOR (0x00) /* Cursor shift */
#define HD4478OU_FUNC (0x20) /* Set DL, display line, font */
#define HD4478OU_FUNC (0x23) /* Set DL, display line, font */
# define HD4478OU_FUNC_F5x10 (1 << 2) /* 5x10 Style */
# define HD4478OU_FUNC_F5x7 (0x00) /* 5x7 Style */
# define HD4478OU_FUNC_N1 (1 << 3) /* N=2R */
@ -77,7 +77,9 @@
/* RS=0 R/W=1 : Execute internal function, read AD of CT */
#define HD4478OU_BUSY(bf,ac) ((bf) << 7 | (ac))
#define HD4478OU_BF (1 << 7) /* Busy flag */
#define HD4478OU_AC_SHIFT (0) /* AD of CT */
#define HD4478OU_AC_MASK (0x7f << HD4478OU_BUSY_AC_SHIFT)
/* DDRAM Addressing.
*