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Update SAMA5D4-EK PIO usage

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This commit is contained in:
Gregory Nutt
2014-06-07 09:37:17 -06:00
parent ad1701d0f9
commit 24af2deb30
9 changed files with 550 additions and 387 deletions
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configs/sama5d3-xplained/include/board.h
+1
View File
@@ -160,6 +160,7 @@
* - PE29. Pressing the switch connect PE29 to ground. Therefore, PE29
* must be pulled high internally. When the button is pressed the SAMA5
* will sense "0" is on PE29.
*/
#define BUTTON_USER 0
#define NUM_BUTTONS 1
configs/sama5d3-xplained/src/sam_buttons.c
+11 -11
View File
@@ -91,32 +91,32 @@ static xcpt_t g_irquser1;
* Name: board_button_initialize
*
* Description:
* board_button_initialize() must be called to initialize button resources. After
* that, board_buttons() may be called to collect the current state of all
* buttons or board_button_irq() may be called to register button interrupt
* handlers.
* board_button_initialize() must be called to initialize button resources.
* After that, board_buttons() may be called to collect the current state
* of all buttons or board_button_irq() may be called to register button
* interrupt handlers.
*
****************************************************************************/
void board_button_initialize(void)
{
(void)sam_configpio(PIO_USER1);
(void)sam_configpio(PIO_USER);
}
/****************************************************************************
* Name: board_buttons
*
* Description:
* After board_button_initialize() has been called, board_buttons() may be called to
* collect the state of all buttons. board_buttons() returns an 8-bit bit set
* with each bit associated with a button. See the BUTTON* definitions
* above for the meaning of each bit in the returned value.
* After board_button_initialize() has been called, board_buttons() may be
* called to collect the state of all buttons. board_buttons() returns an
* 8-bit bit set with each bit associated with a button. See the BUTTON*
* definitions above for the meaning of each bit in the returned value.
*
****************************************************************************/
uint8_t board_buttons(void)
{
return sam_pioread(PIO_USER1) ? 0 : BUTTON_USER1_BIT;
return sam_pioread(PIO_USER) ? 0 : BUTTON_USER_BIT;
}
/****************************************************************************
@@ -140,7 +140,7 @@ xcpt_t board_button_irq(int id, xcpt_t irqhandler)
{
xcpt_t oldhandler = NULL;
if (id == BUTTON_USER1)
if (id == BUTTON_USER)
{
irqstate_t flags;
configs/sama5d4-ek/README.txt
+336 -112
View File
File diff suppressed because it is too large Load Diff
configs/sama5d4-ek/include/board.h
+30 -134
View File
@@ -95,30 +95,35 @@
#endif
/* LED definitions ******************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
* by software. A blue LED is controlled via PIO pins. A red LED normally
* provides an indication that power is supplied to the board but can also
* be controlled via software.
/* There are 3 LEDs on the SAMA5D4-EK:
*
* PE23. This blue LED is pulled high and is illuminated by pulling PE23
* low.
* ------------------------------ ------------------- -------------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- -------------------------
* PE28/NWAIT/RTS4/A19 1Wire_PE28 1-WIRE ROM, LCD, D8 (green)
* PE8/A8/TCLK3/PWML3 LED_USER_PE8 LED_USER (D10)
* PE9/A9/TIOA2 LED_POWER_PE9 LED_POWER (D9, Red)
* ------------------------------ ------------------- -------------------------
*
* PE24. The red LED is also pulled high but is driven by a transistor so
* that it is illuminated when power is applied even if PE24 is not
* configured as an output. If PE24 is configured as an output, then the
* LCD is illuminated by a high output.
* - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* is used. I am not sure of the LCD function, but the LED may not be available
* if the LCD is used either. We will avoid using D8 just for simplicity.
* - D10: Nothing special here. A low output illuminates.
* - D9: The Power ON LED. Connects to the via an IRLML2502 MOSFET. This LED will
* be on when power is applied but otherwise a low output value will turn it
* off.
*/
/* LED index values for use with sam_setled() */
#define BOARD_BLUE 0
#define BOARD_RED 1
#define BOARD_USER 0
#define BOARD_POWER 1
#define BOARD_NLEDS 2
/* LED bits for use with sam_setleds() */
#define BOARD_BLUE_BIT (1 << BOARD_BLUE)
#define BOARD_RED_BIT (1 << BOARD_RED)
#define BOARD_USER_BIT (1 << BOARD_BLUE)
#define BOARD_POWER_BIT (1 << BOARD_RED)
/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
* defined. In that case, the usage by the board port is defined in
@@ -138,28 +143,24 @@
#define LED_PANIC 3 /* The system has crashed OFF Blinking */
#undef LED_IDLE /* MCU is is sleep mode Not used */
/* Thus if the blue LED is statically on, NuttX has successfully booted and
* is, apparently, running normmally. If the red is flashing at
/* Thus if the D0 and D9 are statically on, NuttX has successfully booted and
* is, apparently, running normally. If the red D9 LED is flashing at
* approximately 2Hz, then a fatal error has been detected and the system
* has halted.
*/
/* Button definitions ***************************************************************/
/* The following push buttons switches are available:
/* A single button, PB_USER1 (PB2), is available on the SAMA5D4-EK:
*
* 1. One board reset button (BP2). When pressed and released, this push
* button causes a power-on reset of the whole board.
* ------------------------------ ------------------- -------------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- -------------------------
* PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
* ------------------------------ ------------------- -------------------------
*
* 2. One wakeup pushbutton that brings the processor out of Low-power mode
* (BP1)
*
* 3. One user pushbutton (BP3)
*
* Only the user push button (BP3) is controllable by software:
*
* - PE29. Pressing the switch connect PE29 to ground. Therefore, PE29
* must be pulled high internally. When the button is pressed the SAMA5
* will sense "0" is on PE29.
* Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak pull-up,
* and 2) when PB2 is pressed, a low value will be senses.
*/
#define BUTTON_USER 0
#define NUM_BUTTONS 1
@@ -181,111 +182,6 @@
#define BOARD_EBICS3_NAND_DATAADDR 0x60000000
/* PIO configuration ****************************************************************/
/* PWM. There are no dedicated PWM output pins available to the user for PWM
* testing. Care must be taken because all PWM output pins conflict with some other
* usage of the pin by other devices. Furthermore, many of these pins have not been
* brought out to an external connector:
*
* -----+---+---+----+------+----------------
* PWM PIN PER PIO I/O CONFLICTS
* -----+---+---+----+------+----------------
* PWM0 FI B PC28 J2.30 SPI1, ISI
* H B PB0 --- GMAC
* B PA20 J1.14 LCDC, ISI
* L B PB1 --- GMAC
* B PA21 J1.16 LCDC, ISI
* -----+---+---+----+------+----------------
* PWM1 FI B PC31 J2.36 HDMI
* H B PB4 --- GMAC
* B PA22 J1.18 LCDC, ISI
* L B PB5 --- GMAC
* B PE31 J3.20 ISI, HDMI
* B PA23 J1.20 LCDC, ISI
* -----+---+---+----+------+----------------
* PWM2 FI B PC29 J2.29 UART0, ISI, HDMI
* H C PD5 --- HSMCI0
* B PB8 --- GMAC
* L C PD6 --- HSMCI0
* B PB9 --- GMAC
* -----+---+---+----+------+----------------
* PWM3 FI C PD16 --- SPI0, Audio
* H C PD7 --- HSMCI0
* B PB12 J3.7 GMAC
* L C PD8 --- HSMCI0
* B PB13 --- GMAC
* -----+---+---+----+------+----------------
*/
/* PWM channel 0:
*
* PA20 and PA21 can be used if the LCDC or ISI are not selected. These outputs are
* available on J1, pins 14 and 16, respectively.
*
* If the GMAC is not selected, then PB0 and PB1 could also be used. However,
* these pins are not available at the I/O expansion connectors.
*/
#if !defined(CONFIG_SAMA5_LCDC) && !defined(CONFIG_SAMA5_ISI)
# define PIO_PWM0_H PIO_PWM0_H_2
# define PIO_PWM0_L PIO_PWM0_L_2
#elif !defined(CONFIG_SAMA5_GMAC)
# define PIO_PWM0_H PIO_PWM0_H_1
# define PIO_PWM0_L PIO_PWM0_L_1
#endif
/* PWM channel 1:
*
* PA22 and PA23 can be used if the LCDC or ISI are not selected. These outputs are
* available on J1, pins 18 and 20, respectively.
*
* PE31 can be used if the ISI is not selected (and the HDMI is not being used).
* That signal is available at J3 pin 20.
*
* If the GMAC is not selected, then PB4 and PB5 could also be used. However,
* these pins are not available at the I/O expansion connectors.
*/
#if !defined(CONFIG_SAMA5_LCDC) && !defined(CONFIG_SAMA5_ISI)
# define PIO_PWM1_H PIO_PWM1_H_2
#elif !defined(CONFIG_SAMA5_GMAC)
# define PIO_PWM1_H PIO_PWM1_H_1
#endif
#if !defined(CONFIG_SAMA5_LCDC) && !defined(CONFIG_SAMA5_ISI)
# define PIO_PWM1_L PIO_PWM1_L_3
#elif !defined(CONFIG_SAMA5_ISI)
# define PIO_PWM1_L PIO_PWM1_L_2
#elif !defined(CONFIG_SAMA5_GMAC)
# define PIO_PWM1_L PIO_PWM1_L_1
#endif
/* PWM channel 2:
*
* None of the output pin options are available at any of the I/O expansion
* connectors for PWM channel 2
*/
#if !defined(CONFIG_SAMA5_HSMCI0)
# define PIO_PWM2_H PIO_PWM2_H_1
# define PIO_PWM2_L PIO_PWM2_L_1
#elif !defined(CONFIG_SAMA5_GMAC)
# define PIO_PWM2_H PIO_PWM2_H_2
# define PIO_PWM2_L PIO_PWM2_L_2
#endif
/* PWM channel 3:
*
* If the GMAC is not selected, then PB12 can used and is available at J3 pin 7.
* None of the other output pins are accessible at the I/O expansion connectors.
*/
#if !defined(CONFIG_SAMA5_GMAC)
# define PIO_PWM3_H PIO_PWM3_H_2
# define PIO_PWM3_L PIO_PWM3_L_2
#elif !defined(CONFIG_SAMA5_HSMCI0)
# define PIO_PWM3_H PIO_PWM3_H_1
# define PIO_PWM3_L PIO_PWM3_L_1
#endif
/************************************************************************************
* Assembly Language Macros
configs/sama5d4-ek/nsh/defconfig
+35 -14
View File
@@ -164,7 +164,7 @@ CONFIG_ARCH_CHIP_ATSAMA5D44=y
# CONFIG_SAMA5_AES is not set
# CONFIG_SAMA5_TDES is not set
# CONFIG_SAMA5_AESB is not set
CONFIG_SAMA5_DBGU=y
# CONFIG_SAMA5_DBGU is not set
# CONFIG_SAMA5_L2CC is not set
# CONFIG_SAMA5_PIT is not set
# CONFIG_SAMA5_WDT is not set
@@ -177,8 +177,8 @@ CONFIG_SAMA5_HSMC=y
# CONFIG_SAMA5_USART0 is not set
# CONFIG_SAMA5_USART1 is not set
# CONFIG_SAMA5_USART2 is not set
# CONFIG_SAMA5_USART3 is not set
# CONFIG_SAMA5_USART4 is not set
CONFIG_SAMA5_USART3=y
CONFIG_SAMA5_USART4=y
# CONFIG_SAMA5_TWI0 is not set
# CONFIG_SAMA5_TWI1 is not set
# CONFIG_SAMA5_TWI2 is not set
@@ -211,14 +211,6 @@ CONFIG_SAMA5_HSMC=y
# CONFIG_SAMA5_VDEC is not set
# CONFIG_SAMA5_PIO_IRQ is not set
#
# DBGU Configuration
#
CONFIG_SAMA5_DBGU_CONSOLE=y
CONFIG_SAMA5_DBGU_RXBUFSIZE=256
CONFIG_SAMA5_DBGU_TXBUFSIZE=256
CONFIG_SAMA5_DBGU_NOCONFIG=y
#
# External Memory Configuration
#
@@ -450,8 +442,8 @@ CONFIG_SERIAL=y
# CONFIG_ARCH_HAVE_USART0 is not set
# CONFIG_ARCH_HAVE_USART1 is not set
# CONFIG_ARCH_HAVE_USART2 is not set
# CONFIG_ARCH_HAVE_USART3 is not set
# CONFIG_ARCH_HAVE_USART4 is not set
CONFIG_ARCH_HAVE_USART3=y
CONFIG_ARCH_HAVE_USART4=y
# CONFIG_ARCH_HAVE_USART5 is not set
# CONFIG_ARCH_HAVE_USART6 is not set
# CONFIG_ARCH_HAVE_USART7 is not set
@@ -460,8 +452,37 @@ CONFIG_SERIAL=y
#
# USART Configuration
#
# CONFIG_MCU_SERIAL is not set
CONFIG_USART3_ISUART=y
CONFIG_USART4_ISUART=y
CONFIG_MCU_SERIAL=y
CONFIG_STANDARD_SERIAL=y
CONFIG_USART3_SERIAL_CONSOLE=y
# CONFIG_USART4_SERIAL_CONSOLE is not set
# CONFIG_NO_SERIAL_CONSOLE is not set
#
# USART3 Configuration
#
CONFIG_USART3_RXBUFSIZE=256
CONFIG_USART3_TXBUFSIZE=256
CONFIG_USART3_BAUD=115200
CONFIG_USART3_BITS=8
CONFIG_USART3_PARITY=0
CONFIG_USART3_2STOP=0
# CONFIG_USART3_IFLOWCONTROL is not set
# CONFIG_USART3_OFLOWCONTROL is not set
#
# USART4 Configuration
#
CONFIG_USART4_RXBUFSIZE=256
CONFIG_USART4_TXBUFSIZE=256
CONFIG_USART4_BAUD=115200
CONFIG_USART4_BITS=8
CONFIG_USART4_PARITY=0
CONFIG_USART4_2STOP=0
# CONFIG_USART4_IFLOWCONTROL is not set
# CONFIG_USART4_OFLOWCONTROL is not set
# CONFIG_SERIAL_IFLOWCONTROL is not set
# CONFIG_SERIAL_OFLOWCONTROL is not set
# CONFIG_USBDEV is not set
configs/sama5d4-ek/src/sam_autoleds.c
+66 -46
View File
@@ -32,39 +32,44 @@
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
* by software. A blue LED is controlled via PIO pins. A red LED normally
* provides an indication that power is supplied to the board but can also
* be controlled via software.
/* There are 3 LEDs on the SAMA5D4-EK:
*
* PE25. This blue LED is pulled high and is illuminated by pulling PE25
* low.
* ------------------------------ ------------------- -------------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- -------------------------
* PE28/NWAIT/RTS4/A19 1Wire_PE28 1-WIRE ROM, LCD, D8 (green)
* PE8/A8/TCLK3/PWML3 LED_USER_PE8 LED_USER (D10)
* PE9/A9/TIOA2 LED_POWER_PE9 LED_POWER (D9, Red)
* ------------------------------ ------------------- -------------------------
*
* PE24. The red LED is also pulled high but is driven by a transistor so
* that it is illuminated when power is applied even if PE24 is not
* configured as an output. If PE24 is configured as an output, then the
* LCD is illuminated by a low output.
* - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* is used. I am not sure of the LCD function, but the LED may not be available
* if the LCD is used either. We will avoid using D8 just for simplicity.
* - D10: Nothing special here. A low output illuminates.
* - D9: The Power ON LED. Connects to the via an IRLML2502 MOSFET. This LED will
* be on when power is applied but otherwise a low output value will turn it
* off.
*
* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
* defined. In that case, the usage by the board port is defined in
* include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
* events as follows:
*
* SYMBOL Val Meaning LED state
* Blue Red
* ----------------- --- ----------------------- -------- --------
* LED_STARTED 0 NuttX has been started OFF OFF
* LED_HEAPALLOCATE 0 Heap has been allocated OFF OFF
* LED_IRQSENABLED 0 Interrupts enabled OFF OFF
* LED_STACKCREATED 1 Idle stack created ON OFF
* LED_INIRQ 2 In an interrupt No change
* LED_SIGNAL 2 In a signal handler No change
* LED_ASSERTION 2 An assertion failed No change
* LED_PANIC 3 The system has crashed OFF Blinking
* LED_IDLE N/A MCU is is sleep mode Not used
* SYMBOL Meaning LED state
* USER D10 POWER D9
* ------------------- ----------------------- -------- --------
* LED_STARTED NuttX has been started OFF ON
* LED_HEAPALLOCATE Heap has been allocated OFF ON
* LED_IRQSENABLED Interrupts enabled OFF ON
* LED_STACKCREATED Idle stack created ON ON
* LED_INIRQ In an interrupt No change
* LED_SIGNAL In a signal handler No change
* LED_ASSERTION An assertion failed No change
* LED_PANIC The system has crashed OFF Blinking
* LED_IDLE MCU is is sleep mode Not used
*
* Thus if the blue LED is statically on, NuttX has successfully booted and
* is, apparently, running normally. If the red is flashing at
* Thus if the D0 and D9 are statically on, NuttX has successfully booted and
* is, apparently, running normally. If the red D9 LED is flashing at
* approximately 2Hz, then a fatal error has been detected and the system
* has halted.
*/
@@ -122,8 +127,8 @@ void board_led_initialize(void)
{
/* Configure LED PIOs for output */
sam_configpio(PIO_BLUE);
sam_configpio(PIO_RED);
sam_configpio(PIO_LED_USER);
sam_configpio(PIO_LED_POWER);
}
/****************************************************************************
@@ -132,29 +137,31 @@ void board_led_initialize(void)
void board_led_on(int led)
{
bool blueoff = true; /* Low illuminates */
bool redon = false; /* High illuminates */
switch (led)
{
case 0: /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED */
break;
case 1: /* LED_STACKCREATED */
blueoff = false;
break;
default:
case 2: /* LED_INIRQ, LED_SIGNAL, LED_ASSERTION */
return;
case 0: /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED */
break; /* Leave USER LED off */
case 3: /* LED_PANIC */
redon = true;
case 1: /* LED_STACKCREATED */
{
/* User LED is ON (Low illuminates) */
sam_piowrite(PIO_LED_USER, false);
}
break;
case 2: /* LED_INIRQ, LED_SIGNAL, LED_ASSERTION */
break; /* Ignored */
case 3: /* LED_PANIC */
{
/* Power LED is ON (High illuminates) */
sam_piowrite(PIO_LED_POWER, true);
}
break;
}
sam_piowrite(PIO_BLUE, blueoff);
sam_piowrite(PIO_RED, redon);
}
/****************************************************************************
@@ -163,10 +170,23 @@ void board_led_on(int led)
void board_led_off(int led)
{
if (led != 2)
switch (led)
{
sam_piowrite(PIO_BLUE, true); /* Low illuminates */
sam_piowrite(PIO_RED, false); /* High illuminates */
default:
case 0: /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED, */
case 1: /* LED_STACKCREATED */
break; /* Will not happen */
case 2: /* LED_INIRQ, LED_SIGNAL, LED_ASSERTION */
break; /* Ignored */
case 3: /* LED_PANIC */
{
/* Power LED is OFF (High illuminates) */
sam_piowrite(PIO_LED_POWER, false);
}
break;
}
}
configs/sama5d4-ek/src/sam_buttons.c
+20 -24
View File
@@ -32,20 +32,16 @@
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* There are five push button switches on the SAMA4D4-EK base board:
/* A single button, PB_USER1 (PB2), is available on the SAMA5D4-EK:
*
* 1. One Reset, board reset (BP1)
* 2. One Wake up, push button to bring the processor out of low power mode
* (BP2)
* 3. One User momentary Push Button
* 4. One Disable CS Push Button
* ------------------------------ ------------------- ----------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- ----------------------
* PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
* ------------------------------ ------------------- ----------------------
*
* Only the momentary push button is controllable by software (labeled
* "PB_USER1" on the board):
*
* - PE27. Pressing the switch connect PE27 to grounded. Therefore, PE27
* must be pulled high internally. When the button is pressed the SAMA5
* will sense "0" is on PE27.
* Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak
* pull-up, and 2) when PB2 is pressed, a low value will be senses.
*/
/****************************************************************************
@@ -91,32 +87,32 @@ static xcpt_t g_irquser1;
* Name: board_button_initialize
*
* Description:
* board_button_initialize() must be called to initialize button resources. After
* that, board_buttons() may be called to collect the current state of all
* buttons or board_button_irq() may be called to register button interrupt
* handlers.
* board_button_initialize() must be called to initialize button resources.
* After that, board_buttons() may be called to collect the current state
* of all buttons or board_button_irq() may be called to register button
* interrupt handlers.
*
****************************************************************************/
void board_button_initialize(void)
{
(void)sam_configpio(PIO_USER1);
(void)sam_configpio(PIO_BTN_USER);
}
/****************************************************************************
* Name: board_buttons
*
* Description:
* After board_button_initialize() has been called, board_buttons() may be called to
* collect the state of all buttons. board_buttons() returns an 8-bit bit set
* with each bit associated with a button. See the BUTTON* definitions
* above for the meaning of each bit in the returned value.
* After board_button_initialize() has been called, board_buttons() may be
* called to collect the state of all buttons. board_buttons() returns an
* 8-bit bit set with each bit associated with a button. See the BUTTON*
* definitions above for the meaning of each bit in the returned value.
*
****************************************************************************/
uint8_t board_buttons(void)
{
return sam_pioread(PIO_USER1) ? 0 : BUTTON_USER1_BIT;
return sam_pioread(PIO_BTN_USER) ? 0 : BUTTON_USER_BIT;
}
/****************************************************************************
@@ -126,7 +122,7 @@ uint8_t board_buttons(void)
* This function may be called to register an interrupt handler that will
* be called when a button is depressed or released. The ID value is one
* of the BUTTON* definitions provided above. The previous interrupt
* handler address isreturned (so that it may restored, if so desired).
* handler address is returned (so that it may restored, if so desired).
*
* Configuration Notes:
* Configuration CONFIG_SAMA5_PIO_IRQ must be selected to enable the
@@ -140,7 +136,7 @@ xcpt_t board_button_irq(int id, xcpt_t irqhandler)
{
xcpt_t oldhandler = NULL;
if (id == BUTTON_USER1)
if (id == BUTTON_USER)
{
irqstate_t flags;
configs/sama5d4-ek/src/sam_userleds.c
+21 -17
View File
@@ -32,18 +32,22 @@
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
* by software. A blue LED is controlled via PIO pins. A red LED normally
* provides an indication that power is supplied to the board but can also
* be controlled via software.
/* There are 3 LEDs on the SAMA5D4-EK:
*
* PE25. This blue LED is pulled high and is illuminated by pulling PE25
* low.
* ------------------------------ ------------------- -------------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- -------------------------
* PE28/NWAIT/RTS4/A19 1Wire_PE28 1-WIRE ROM, LCD, D8 (green)
* PE8/A8/TCLK3/PWML3 LED_USER_PE8 LED_USER (D10)
* PE9/A9/TIOA2 LED_POWER_PE9 LED_POWER (D9, Red)
* ------------------------------ ------------------- -------------------------
*
* PE24. The red LED is also pulled high but is driven by a transistor so
* that it is illuminated when power is applied even if PE24 is not
* configured as an output. If PE24 is configured as an output, then the
* LCD is illuminated by a low output.
* - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* is used. I am not sure of the LCD function, but the LED may not be available
* if the LCD is used either. We will avoid using D8 just for simplicity.
* - D10: Nothing special here. A low output illuminates.
* - D9: The Power ON LED. Connects to the via an IRLML2502 MOSFET. This LED will
* be on when power is applied but otherwise, I think it works like D10.
*/
/****************************************************************************
@@ -84,7 +88,7 @@
****************************************************************************/
/****************************************************************************
* Private Function Protototypes
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
@@ -107,8 +111,8 @@ void sam_ledinit(void)
{
/* Configure LED PIOs for output */
sam_configpio(PIO_BLUE);
sam_configpio(PIO_RED);
sam_configpio(PIO_LED_USER);
sam_configpio(PIO_LED_POWER);
}
/****************************************************************************
@@ -123,14 +127,14 @@ void sam_setled(int led, bool ledon)
{
/* Low illuminates */
ledcfg = PIO_BLUE;
ledcfg = PIO_LED_USER;
ledon = !ledon;
}
else if (led == BOARD_RED)
{
/* High illuminates */
ledcfg = PIO_RED;
ledcfg = PIO_LED_POWER;
}
else
{
@@ -151,12 +155,12 @@ void sam_setleds(uint8_t ledset)
/* Low illuminates */
ledon = ((ledset & BOARD_BLUE_BIT) == 0);
sam_piowrite(PIO_BLUE, ledon);
sam_piowrite(PIO_LED_USER, ledon);
/* High illuminates */
ledon = ((ledset & BOARD_RED_BIT) != 0);
sam_piowrite(PIO_RED, ledon);
sam_piowrite(PIO_LED_POWER, ledon);
}
#endif /* !CONFIG_ARCH_LEDS */
configs/sama5d4-ek/src/sama5d4-ek.h
+30 -29
View File
@@ -260,45 +260,46 @@
#endif
/* LEDs *****************************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled
* by software. A blue LED is controlled via PIO pins. A red LED normally
* provides an indication that power is supplied to the board but can also
* be controlled via software.
/* There are 3 LEDs on the SAMA5D4-EK:
*
* PE23. This blue LED is pulled high and is illuminated by pulling PE23
* low.
* ------------------------------ ------------------- -------------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- -------------------------
* PE28/NWAIT/RTS4/A19 1Wire_PE28 1-WIRE ROM, LCD, D8 (green)
* PE8/A8/TCLK3/PWML3 LED_USER_PE8 LED_USER (D10)
* PE9/A9/TIOA2 LED_POWER_PE9 LED_POWER (D9, Red)
* ------------------------------ ------------------- -------------------------
*
* PE24. The red LED is also pulled high but is driven by a transistor so
* that it is illuminated when power is applied even if PE24 is not
* configured as an output. If PE24 is configured as an output, then the
* LCD is illuminated by a high output.
* - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* is used. I am not sure of the LCD function, but the LED may not be available
* if the LCD is used either. We will avoid using D8 just for simplicity.
* - D10: Nothing special here. A low output illuminates.
* - D9: The Power ON LED. Connects to the via an IRLML2502 MOSFET. This LED will
* be on when power is applied but otherwise; a low output value will turn it
* off.
*/
#define PIO_BLUE (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_SET | \
PIO_PORT_PIOE | PIO_PIN23)
#define PIO_RED (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_CLEAR | \
PIO_PORT_PIOE | PIO_PIN24)
#define PIO_LED_USER (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_SET | \
PIO_PORT_PIOE | PIO_PIN8)
#define PIO_LED_POWER (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_SET | \
PIO_PORT_PIOE | PIO_PIN9)
/* Buttons **************************************************************************/
/* There are five push button switches on the SAMA4D4-EK base board:
/* A single button, PB_USER1 (PB2), is available on the SAMA5D4-EK:
*
* 1. One Reset, board reset (BP1)
* 2. One Wake up, push button to bring the processor out of low power mode
* (BP2)
* 3. One User momentary Push Button
* 4. One Disable CS Push Button
* ------------------------------ ------------------- -------------------------
* SAMA5D4 PIO SIGNAL USAGE
* ------------------------------ ------------------- -------------------------
* PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
* ------------------------------ ------------------- -------------------------
*
* Only the user push button is controllable by software (labeled
* "PB_USER1" on the board):
*
* - PE29. Pressing the switch connects PE29 to ground. Therefore, PE29
* must be pulled high internally. When the button is pressed the SAMA5
* will sense "0" is on PE29.
* Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak pull-up,
* and 2) when PB2 is pressed, a low value will be senses.
*/
#define PIO_USER (PIO_INPUT | PIO_CFG_PULLUP | PIO_CFG_DEGLITCH | \
PIO_INT_BOTHEDGES | PIO_PORT_PIOE | PIO_PIN29)
#define IRQ_USER SAM_IRQ_PE29
#define PIO_BTN_USER (PIO_INPUT | PIO_CFG_PULLUP | PIO_CFG_DEGLITCH | \
PIO_INT_BOTHEDGES | PIO_PORT_PIOE | PIO_PIN13)
#define IRQ_BTN_USER SAM_IRQ_PE13
/* HSMCI Card Slots *****************************************************************/
/* The SAMA4D4-EK provides a two SD memory card slots: (1) a full size SD card