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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
Download Patch File Download Diff File Expand all files Collapse all files
configs/sama5d3-xplained/include/board.h
+1
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@@ -160,6 +160,7 @@
* - PE29. Pressing the switch connect PE29 to ground. Therefore, PE29 * - PE29. Pressing the switch connect PE29 to ground. Therefore, PE29
* must be pulled high internally. When the button is pressed the SAMA5 * must be pulled high internally. When the button is pressed the SAMA5
* will sense "0" is on PE29. * will sense "0" is on PE29.
*/
#define BUTTON_USER 0 #define BUTTON_USER 0
#define NUM_BUTTONS 1 #define NUM_BUTTONS 1
configs/sama5d3-xplained/src/sam_buttons.c
+11 -11
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@@ -91,32 +91,32 @@ static xcpt_t g_irquser1;
* Name: board_button_initialize * Name: board_button_initialize
* *
* Description: * Description:
* board_button_initialize() must be called to initialize button resources. After * board_button_initialize() must be called to initialize button resources.
* that, board_buttons() may be called to collect the current state of all * After that, board_buttons() may be called to collect the current state
* buttons or board_button_irq() may be called to register button interrupt * of all buttons or board_button_irq() may be called to register button
* handlers. * interrupt handlers.
* *
****************************************************************************/ ****************************************************************************/
void board_button_initialize(void) void board_button_initialize(void)
{ {
(void)sam_configpio(PIO_USER1); (void)sam_configpio(PIO_USER);
} }
/**************************************************************************** /****************************************************************************
* Name: board_buttons * Name: board_buttons
* *
* Description: * Description:
* After board_button_initialize() has been called, board_buttons() may be called to * After board_button_initialize() has been called, board_buttons() may be
* collect the state of all buttons. board_buttons() returns an 8-bit bit set * called to collect the state of all buttons. board_buttons() returns an
* with each bit associated with a button. See the BUTTON* definitions * 8-bit bit set with each bit associated with a button. See the BUTTON*
* above for the meaning of each bit in the returned value. * definitions above for the meaning of each bit in the returned value.
* *
****************************************************************************/ ****************************************************************************/
uint8_t board_buttons(void) 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; xcpt_t oldhandler = NULL;
if (id == BUTTON_USER1) if (id == BUTTON_USER)
{ {
irqstate_t flags; irqstate_t flags;
configs/sama5d4-ek/README.txt
+336 -112
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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 #endif
/* LED definitions ******************************************************************/ /* LED definitions ******************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled /* There are 3 LEDs on the SAMA5D4-EK:
* 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.
* *
* 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 * - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* that it is illuminated when power is applied even if PE24 is not * is used. I am not sure of the LCD function, but the LED may not be available
* configured as an output. If PE24 is configured as an output, then the * if the LCD is used either. We will avoid using D8 just for simplicity.
* LCD is illuminated by a high output. * - 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() */ /* LED index values for use with sam_setled() */
#define BOARD_BLUE 0 #define BOARD_USER 0
#define BOARD_RED 1 #define BOARD_POWER 1
#define BOARD_NLEDS 2 #define BOARD_NLEDS 2
/* LED bits for use with sam_setleds() */ /* LED bits for use with sam_setleds() */
#define BOARD_BLUE_BIT (1 << BOARD_BLUE) #define BOARD_USER_BIT (1 << BOARD_BLUE)
#define BOARD_RED_BIT (1 << BOARD_RED) #define BOARD_POWER_BIT (1 << BOARD_RED)
/* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is /* 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 * 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 */ #define LED_PANIC 3 /* The system has crashed OFF Blinking */
#undef LED_IDLE /* MCU is is sleep mode Not used */ #undef LED_IDLE /* MCU is is sleep mode Not used */
/* Thus if the blue LED is statically on, NuttX has successfully booted and /* Thus if the D0 and D9 are statically on, NuttX has successfully booted and
* is, apparently, running normmally. If the red is flashing at * is, apparently, running normally. If the red D9 LED is flashing at
* approximately 2Hz, then a fatal error has been detected and the system * approximately 2Hz, then a fatal error has been detected and the system
* has halted. * has halted.
*/ */
/* Button definitions ***************************************************************/ /* 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 * Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak pull-up,
* (BP1) * and 2) when PB2 is pressed, a low value will be senses.
* */
* 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.
#define BUTTON_USER 0 #define BUTTON_USER 0
#define NUM_BUTTONS 1 #define NUM_BUTTONS 1
@@ -181,111 +182,6 @@
#define BOARD_EBICS3_NAND_DATAADDR 0x60000000 #define BOARD_EBICS3_NAND_DATAADDR 0x60000000
/* PIO configuration ****************************************************************/ /* 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 * 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_AES is not set
# CONFIG_SAMA5_TDES is not set # CONFIG_SAMA5_TDES is not set
# CONFIG_SAMA5_AESB 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_L2CC is not set
# CONFIG_SAMA5_PIT is not set # CONFIG_SAMA5_PIT is not set
# CONFIG_SAMA5_WDT 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_USART0 is not set
# CONFIG_SAMA5_USART1 is not set # CONFIG_SAMA5_USART1 is not set
# CONFIG_SAMA5_USART2 is not set # CONFIG_SAMA5_USART2 is not set
# CONFIG_SAMA5_USART3 is not set CONFIG_SAMA5_USART3=y
# CONFIG_SAMA5_USART4 is not set CONFIG_SAMA5_USART4=y
# CONFIG_SAMA5_TWI0 is not set # CONFIG_SAMA5_TWI0 is not set
# CONFIG_SAMA5_TWI1 is not set # CONFIG_SAMA5_TWI1 is not set
# CONFIG_SAMA5_TWI2 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_VDEC is not set
# CONFIG_SAMA5_PIO_IRQ 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 # External Memory Configuration
# #
@@ -450,8 +442,8 @@ CONFIG_SERIAL=y
# CONFIG_ARCH_HAVE_USART0 is not set # CONFIG_ARCH_HAVE_USART0 is not set
# CONFIG_ARCH_HAVE_USART1 is not set # CONFIG_ARCH_HAVE_USART1 is not set
# CONFIG_ARCH_HAVE_USART2 is not set # CONFIG_ARCH_HAVE_USART2 is not set
# CONFIG_ARCH_HAVE_USART3 is not set CONFIG_ARCH_HAVE_USART3=y
# CONFIG_ARCH_HAVE_USART4 is not set CONFIG_ARCH_HAVE_USART4=y
# CONFIG_ARCH_HAVE_USART5 is not set # CONFIG_ARCH_HAVE_USART5 is not set
# CONFIG_ARCH_HAVE_USART6 is not set # CONFIG_ARCH_HAVE_USART6 is not set
# CONFIG_ARCH_HAVE_USART7 is not set # CONFIG_ARCH_HAVE_USART7 is not set
@@ -460,8 +452,37 @@ CONFIG_SERIAL=y
# #
# USART Configuration # 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_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_IFLOWCONTROL is not set
# CONFIG_SERIAL_OFLOWCONTROL is not set # CONFIG_SERIAL_OFLOWCONTROL is not set
# CONFIG_USBDEV 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. * POSSIBILITY OF SUCH DAMAGE.
* *
****************************************************************************/ ****************************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled /* There are 3 LEDs on the SAMA5D4-EK:
* 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.
* *
* 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 * - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* that it is illuminated when power is applied even if PE24 is not * is used. I am not sure of the LCD function, but the LED may not be available
* configured as an output. If PE24 is configured as an output, then the * if the LCD is used either. We will avoid using D8 just for simplicity.
* LCD is illuminated by a low output. * - 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 * 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 * 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 * include/board.h and src/sam_leds.c. The LEDs are used to encode OS-related
* events as follows: * events as follows:
* *
* SYMBOL Val Meaning LED state * SYMBOL Meaning LED state
* Blue Red * USER D10 POWER D9
* ----------------- --- ----------------------- -------- -------- * ------------------- ----------------------- -------- --------
* LED_STARTED 0 NuttX has been started OFF OFF * LED_STARTED NuttX has been started OFF ON
* LED_HEAPALLOCATE 0 Heap has been allocated OFF OFF * LED_HEAPALLOCATE Heap has been allocated OFF ON
* LED_IRQSENABLED 0 Interrupts enabled OFF OFF * LED_IRQSENABLED Interrupts enabled OFF ON
* LED_STACKCREATED 1 Idle stack created ON OFF * LED_STACKCREATED Idle stack created ON ON
* LED_INIRQ 2 In an interrupt No change * LED_INIRQ In an interrupt No change
* LED_SIGNAL 2 In a signal handler No change * LED_SIGNAL In a signal handler No change
* LED_ASSERTION 2 An assertion failed No change * LED_ASSERTION An assertion failed No change
* LED_PANIC 3 The system has crashed OFF Blinking * LED_PANIC The system has crashed OFF Blinking
* LED_IDLE N/A MCU is is sleep mode Not used * LED_IDLE MCU is is sleep mode Not used
* *
* Thus if the blue LED is statically on, NuttX has successfully booted and * Thus if the D0 and D9 are statically on, NuttX has successfully booted and
* is, apparently, running normally. If the red is flashing at * is, apparently, running normally. If the red D9 LED is flashing at
* approximately 2Hz, then a fatal error has been detected and the system * approximately 2Hz, then a fatal error has been detected and the system
* has halted. * has halted.
*/ */
@@ -122,8 +127,8 @@ void board_led_initialize(void)
{ {
/* Configure LED PIOs for output */ /* Configure LED PIOs for output */
sam_configpio(PIO_BLUE); sam_configpio(PIO_LED_USER);
sam_configpio(PIO_RED); sam_configpio(PIO_LED_POWER);
} }
/**************************************************************************** /****************************************************************************
@@ -132,29 +137,31 @@ void board_led_initialize(void)
void board_led_on(int led) void board_led_on(int led)
{ {
bool blueoff = true; /* Low illuminates */
bool redon = false; /* High illuminates */
switch (led) switch (led)
{ {
case 0: /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED */
break;
case 1: /* LED_STACKCREATED */
blueoff = false;
break;
default: default:
case 2: /* LED_INIRQ, LED_SIGNAL, LED_ASSERTION */ case 0: /* LED_STARTED, LED_HEAPALLOCATE, LED_IRQSENABLED */
return; break; /* Leave USER LED off */
case 3: /* LED_PANIC */ case 1: /* LED_STACKCREATED */
redon = true; {
/* 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; 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) void board_led_off(int led)
{ {
if (led != 2) switch (led)
{ {
sam_piowrite(PIO_BLUE, true); /* Low illuminates */ default:
sam_piowrite(PIO_RED, false); /* High illuminates */ 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. * 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 * SAMA5D4 PIO SIGNAL USAGE
* (BP2) * ------------------------------ ------------------- ----------------------
* 3. One User momentary Push Button * PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
* 4. One Disable CS Push Button * ------------------------------ ------------------- ----------------------
* *
* Only the momentary push button is controllable by software (labeled * Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak
* "PB_USER1" on the board): * pull-up, and 2) when PB2 is pressed, a low value will be senses.
*
* - 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.
*/ */
/**************************************************************************** /****************************************************************************
@@ -91,32 +87,32 @@ static xcpt_t g_irquser1;
* Name: board_button_initialize * Name: board_button_initialize
* *
* Description: * Description:
* board_button_initialize() must be called to initialize button resources. After * board_button_initialize() must be called to initialize button resources.
* that, board_buttons() may be called to collect the current state of all * After that, board_buttons() may be called to collect the current state
* buttons or board_button_irq() may be called to register button interrupt * of all buttons or board_button_irq() may be called to register button
* handlers. * interrupt handlers.
* *
****************************************************************************/ ****************************************************************************/
void board_button_initialize(void) void board_button_initialize(void)
{ {
(void)sam_configpio(PIO_USER1); (void)sam_configpio(PIO_BTN_USER);
} }
/**************************************************************************** /****************************************************************************
* Name: board_buttons * Name: board_buttons
* *
* Description: * Description:
* After board_button_initialize() has been called, board_buttons() may be called to * After board_button_initialize() has been called, board_buttons() may be
* collect the state of all buttons. board_buttons() returns an 8-bit bit set * called to collect the state of all buttons. board_buttons() returns an
* with each bit associated with a button. See the BUTTON* definitions * 8-bit bit set with each bit associated with a button. See the BUTTON*
* above for the meaning of each bit in the returned value. * definitions above for the meaning of each bit in the returned value.
* *
****************************************************************************/ ****************************************************************************/
uint8_t board_buttons(void) 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 * 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 * be called when a button is depressed or released. The ID value is one
* of the BUTTON* definitions provided above. The previous interrupt * 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 Notes:
* Configuration CONFIG_SAMA5_PIO_IRQ must be selected to enable the * 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; xcpt_t oldhandler = NULL;
if (id == BUTTON_USER1) if (id == BUTTON_USER)
{ {
irqstate_t flags; irqstate_t flags;
configs/sama5d4-ek/src/sam_userleds.c
+21 -17
View File
@@ -32,18 +32,22 @@
* POSSIBILITY OF SUCH DAMAGE. * POSSIBILITY OF SUCH DAMAGE.
* *
****************************************************************************/ ****************************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled /* There are 3 LEDs on the SAMA5D4-EK:
* 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.
* *
* 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 * - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* that it is illuminated when power is applied even if PE24 is not * is used. I am not sure of the LCD function, but the LED may not be available
* configured as an output. If PE24 is configured as an output, then the * if the LCD is used either. We will avoid using D8 just for simplicity.
* LCD is illuminated by a low output. * - 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 */ /* Configure LED PIOs for output */
sam_configpio(PIO_BLUE); sam_configpio(PIO_LED_USER);
sam_configpio(PIO_RED); sam_configpio(PIO_LED_POWER);
} }
/**************************************************************************** /****************************************************************************
@@ -123,14 +127,14 @@ void sam_setled(int led, bool ledon)
{ {
/* Low illuminates */ /* Low illuminates */
ledcfg = PIO_BLUE; ledcfg = PIO_LED_USER;
ledon = !ledon; ledon = !ledon;
} }
else if (led == BOARD_RED) else if (led == BOARD_RED)
{ {
/* High illuminates */ /* High illuminates */
ledcfg = PIO_RED; ledcfg = PIO_LED_POWER;
} }
else else
{ {
@@ -151,12 +155,12 @@ void sam_setleds(uint8_t ledset)
/* Low illuminates */ /* Low illuminates */
ledon = ((ledset & BOARD_BLUE_BIT) == 0); ledon = ((ledset & BOARD_BLUE_BIT) == 0);
sam_piowrite(PIO_BLUE, ledon); sam_piowrite(PIO_LED_USER, ledon);
/* High illuminates */ /* High illuminates */
ledon = ((ledset & BOARD_RED_BIT) != 0); ledon = ((ledset & BOARD_RED_BIT) != 0);
sam_piowrite(PIO_RED, ledon); sam_piowrite(PIO_LED_POWER, ledon);
} }
#endif /* !CONFIG_ARCH_LEDS */ #endif /* !CONFIG_ARCH_LEDS */
configs/sama5d4-ek/src/sama5d4-ek.h
+30 -29
View File
@@ -260,45 +260,46 @@
#endif #endif
/* LEDs *****************************************************************************/ /* LEDs *****************************************************************************/
/* There are two LEDs on the SAMA5D4 series-CM board that can be controlled /* There are 3 LEDs on the SAMA5D4-EK:
* 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.
* *
* 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 * - D8: D8 is shared with other functions and cannot be used if the 1-Wire ROM
* that it is illuminated when power is applied even if PE24 is not * is used. I am not sure of the LCD function, but the LED may not be available
* configured as an output. If PE24 is configured as an output, then the * if the LCD is used either. We will avoid using D8 just for simplicity.
* LCD is illuminated by a high output. * - 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 | \ #define PIO_LED_USER (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_SET | \
PIO_PORT_PIOE | PIO_PIN23) PIO_PORT_PIOE | PIO_PIN8)
#define PIO_RED (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_CLEAR | \ #define PIO_LED_POWER (PIO_OUTPUT | PIO_CFG_PULLUP | PIO_OUTPUT_SET | \
PIO_PORT_PIOE | PIO_PIN24) PIO_PORT_PIOE | PIO_PIN9)
/* Buttons **************************************************************************/ /* 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 * SAMA5D4 PIO SIGNAL USAGE
* (BP2) * ------------------------------ ------------------- -------------------------
* 3. One User momentary Push Button * PE13/A13/TIOB1/PWML2 PB_USER1_PE13 PB_USER1
* 4. One Disable CS Push Button * ------------------------------ ------------------- -------------------------
* *
* Only the user push button is controllable by software (labeled * Closing JP2 will bring PE13 to ground so 1) PE13 should have a weak pull-up,
* "PB_USER1" on the board): * and 2) when PB2 is pressed, a low value will be senses.
*
* - 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.
*/ */
#define PIO_USER (PIO_INPUT | PIO_CFG_PULLUP | PIO_CFG_DEGLITCH | \ #define PIO_BTN_USER (PIO_INPUT | PIO_CFG_PULLUP | PIO_CFG_DEGLITCH | \
PIO_INT_BOTHEDGES | PIO_PORT_PIOE | PIO_PIN29) PIO_INT_BOTHEDGES | PIO_PORT_PIOE | PIO_PIN13)
#define IRQ_USER SAM_IRQ_PE29 #define IRQ_BTN_USER SAM_IRQ_PE13
/* HSMCI Card Slots *****************************************************************/ /* HSMCI Card Slots *****************************************************************/
/* The SAMA4D4-EK provides a two SD memory card slots: (1) a full size SD card /* The SAMA4D4-EK provides a two SD memory card slots: (1) a full size SD card