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Added test-app code to change LED color based on version. Improved do…
…cumentation. Minor code cleanups.
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| /* app_mcxa.c | ||
| * | ||
| * Test bare-metal boot-led-on application | ||
| * | ||
| * Copyright (C) 2024 wolfSSL Inc. | ||
| * | ||
| * This file is part of wolfBoot. | ||
| * | ||
| * wolfBoot 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 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * wolfBoot 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 this program; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA | ||
| */ | ||
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| #include <stdlib.h> | ||
| #include <stdint.h> | ||
| #include <string.h> | ||
| #include "fsl_common.h" | ||
| #include "fsl_port.h" | ||
| #include "fsl_gpio.h" | ||
| #include "fsl_clock.h" | ||
| #include "wolfboot/wolfboot.h" | ||
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| #define BOARD_LED_GPIO_PORT PORT3 | ||
| #define BOARD_LED_GPIO GPIO3 | ||
| #define BOARD_LED_GPIO_PIN 12U | ||
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| #include "wolfboot/wolfboot.h" | ||
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| void gpio_init(void) | ||
| /* init gpio for port 3 */ | ||
| void gpio_port3_init(int pin) | ||
| { | ||
| /* Write to GPIO3: Peripheral clock is enabled */ | ||
| CLOCK_EnableClock(kCLOCK_GateGPIO3); | ||
| /* Write to PORT3: Peripheral clock is enabled */ | ||
| CLOCK_EnableClock(kCLOCK_GatePORT3); | ||
| /* GPIO3 peripheral is released from reset */ | ||
| RESET_ReleasePeripheralReset(kGPIO3_RST_SHIFT_RSTn); | ||
| /* PORT3 peripheral is released from reset */ | ||
| RESET_ReleasePeripheralReset(kPORT3_RST_SHIFT_RSTn); | ||
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| gpio_pin_config_t LED_RED_config = { | ||
| const port_pin_config_t GPIO_OUT_LED = { | ||
| kPORT_PullDisable, /* Internal pull-up/down resistor is disabled */ | ||
| kPORT_LowPullResistor, /* Low internal pull resistor value is selected. */ | ||
| kPORT_FastSlewRate, /* Fast slew rate is configured */ | ||
| kPORT_PassiveFilterDisable, /* Passive input filter is disabled */ | ||
| kPORT_OpenDrainDisable, /* Open drain output is disabled */ | ||
| kPORT_LowDriveStrength, /* Low drive strength is configured */ | ||
| kPORT_NormalDriveStrength, /* Normal drive strength is configured */ | ||
| kPORT_MuxAlt0, /* Configure as GPIO */ | ||
| kPORT_InputBufferEnable, /* Digital input enabled */ | ||
| kPORT_InputNormal, /* Digital input is not inverted */ | ||
| kPORT_UnlockRegister /* Pin Control Register fields [15:0] are not locked */ | ||
| }; | ||
| const gpio_pin_config_t GPIO_OUT_LED_config = { | ||
| .pinDirection = kGPIO_DigitalOutput, | ||
| .outputLogic = 0U | ||
| }; | ||
| /* Initialize GPIO functionality on pin PIO3_12 (pin 38) */ | ||
| GPIO_PinInit(BOARD_LED_GPIO, BOARD_LED_GPIO_PIN, &LED_RED_config); | ||
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| const port_pin_config_t LED_RED = {/* Internal pull-up/down resistor is disabled */ | ||
| kPORT_PullDisable, | ||
| /* Low internal pull resistor value is selected. */ | ||
| kPORT_LowPullResistor, | ||
| /* Fast slew rate is configured */ | ||
| kPORT_FastSlewRate, | ||
| /* Passive input filter is disabled */ | ||
| kPORT_PassiveFilterDisable, | ||
| /* Open drain output is disabled */ | ||
| kPORT_OpenDrainDisable, | ||
| /* Low drive strength is configured */ | ||
| kPORT_LowDriveStrength, | ||
| /* Normal drive strength is configured */ | ||
| kPORT_NormalDriveStrength, | ||
| /* Pin is configured as P3_12 */ | ||
| kPORT_MuxAlt0, | ||
| /* Digital input enabled */ | ||
| kPORT_InputBufferEnable, | ||
| /* Digital input is not inverted */ | ||
| kPORT_InputNormal, | ||
| /* Pin Control Register fields [15:0] are not locked */ | ||
| kPORT_UnlockRegister}; | ||
| /* PORT3_12 (pin 38) is configured as P3_12 */ | ||
| PORT_SetPinConfig(BOARD_LED_GPIO_PORT, BOARD_LED_GPIO_PIN, &LED_RED); | ||
| } | ||
| /* Enable GPIO port 3 clocks */ | ||
| CLOCK_EnableClock(kCLOCK_GateGPIO3); /* Write to GPIO3: Peripheral clock is enabled */ | ||
| CLOCK_EnableClock(kCLOCK_GatePORT3); /* Write to PORT3: Peripheral clock is enabled */ | ||
| RESET_ReleasePeripheralReset(kGPIO3_RST_SHIFT_RSTn); /* GPIO3 peripheral is released from reset */ | ||
| RESET_ReleasePeripheralReset(kPORT3_RST_SHIFT_RSTn); /* PORT3 peripheral is released from reset */ | ||
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| /* Initialize GPIO functionality on pin */ | ||
| GPIO_PinInit(GPIO3, pin, &GPIO_OUT_LED_config); | ||
| PORT_SetPinConfig(PORT3, pin, &GPIO_OUT_LED); | ||
| } | ||
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| void main(void) { | ||
| void main(void) | ||
| { | ||
| int i = 0; | ||
| gpio_pin_config_t led_config = { | ||
| kGPIO_DigitalOutput, 0, | ||
| }; | ||
| /* Write to GPIO3: Peripheral clock is enabled */ | ||
| CLOCK_EnableClock(kCLOCK_GateGPIO3); | ||
| /* Write to PORT3: Peripheral clock is enabled */ | ||
| CLOCK_EnableClock(kCLOCK_GatePORT3); | ||
| /* GPIO3 peripheral is released from reset */ | ||
| RESET_ReleasePeripheralReset(kGPIO3_RST_SHIFT_RSTn); | ||
| /* PORT3 peripheral is released from reset */ | ||
| RESET_ReleasePeripheralReset(kPORT3_RST_SHIFT_RSTn); | ||
| gpio_init(); | ||
| uint8_t* bootPart = (uint8_t*)WOLFBOOT_PARTITION_BOOT_ADDRESS; | ||
| uint32_t bootVer = wolfBoot_get_blob_version(bootPart); | ||
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| GPIO_PinWrite(BOARD_LED_GPIO, BOARD_LED_GPIO_PIN, 0); | ||
| /* If application version 1 then GREEN, else BLUE */ | ||
| /* RGB LED D15 (RED=P3_12, GREEN=P3_13, BLUE=P3_0) */ | ||
| if (bootVer == 1) { | ||
| gpio_port3_init(13); | ||
| GPIO_PinWrite(GPIO3, 13, 0); | ||
| } | ||
| else { | ||
| gpio_port3_init(0); | ||
| GPIO_PinWrite(GPIO3, 0, 0); | ||
| } | ||
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| while(1) | ||
| /* busy wait */ | ||
| while (1) { | ||
| __WFI(); | ||
| } | ||
| } |