1 /*
2 * Copyright (c) 2020 Cypress Semiconductor Corporation
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6 /*
7 * Licensed to the Apache Software Foundation (ASF) under one
8 * or more contributor license agreements. See the NOTICE file
9 * distributed with this work for additional information
10 * regarding copyright ownership. The ASF licenses this file
11 * to you under the Apache License, Version 2.0 (the
12 * "License"); you may not use this file except in compliance
13 * with the License. You may obtain a copy of the License at
14 *
15 * http://www.apache.org/licenses/LICENSE-2.0
16 *
17 * Unless required by applicable law or agreed to in writing,
18 * software distributed under the License is distributed on an
19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20 * KIND, either express or implied. See the License for the
21 * specific language governing permissions and limitations
22 * under the License.
23 */
24 /*******************************************************************************/
25
26 #include "system_psoc6.h"
27 #include "cy_pdl.h"
28 #include "cyhal.h"
29 #include "cy_retarget_io.h"
30 #include "watchdog.h"
31
32 /* Define pins for UART debug output */
33
34 #define CY_DEBUG_UART_TX (P5_1)
35 #define CY_DEBUG_UART_RX (P5_0)
36
37 #if defined(PSOC_062_2M)
38 #warning "Check if User LED is correct for your target board."
39 #define LED_PORT GPIO_PRT13
40 #define LED_PIN 7U
41 #elif defined(PSOC_062_1M)
42 #define LED_PORT GPIO_PRT13
43 #define LED_PIN 7U
44 #elif defined(PSOC_062_512K)
45 #define LED_PORT GPIO_PRT11
46 #define LED_PIN 1U
47 #endif
48
49 #define LED_NUM 5U
50 #define LED_DRIVEMODE CY_GPIO_DM_STRONG_IN_OFF
51 #define LED_INIT_DRIVESTATE 1
52
53 const cy_stc_gpio_pin_config_t LED_config =
54 {
55 .outVal = 1,
56 .driveMode = CY_GPIO_DM_STRONG_IN_OFF,
57 .hsiom = HSIOM_SEL_GPIO,
58 .intEdge = CY_GPIO_INTR_DISABLE,
59 .intMask = 0UL,
60 .vtrip = CY_GPIO_VTRIP_CMOS,
61 .slewRate = CY_GPIO_SLEW_FAST,
62 .driveSel = CY_GPIO_DRIVE_FULL,
63 .vregEn = 0UL,
64 .ibufMode = 0UL,
65 .vtripSel = 0UL,
66 .vrefSel = 0UL,
67 .vohSel = 0UL,
68 };
69
70 #define WATCHDOG_UPD_MESSAGE "[BlinkyApp] Update watchdog timer started in MCUBootApp to mark successful start of user app\r\n"
71 #define WATCHDOG_FREE_MESSAGE "[BlinkyApp] Turn off watchdog timer\r\n"
72
73 #ifdef BOOT_IMG
74 #define BLINK_PERIOD (1000u)
75 #define GREETING_MESSAGE_VER "[BlinkyApp] BlinkyApp v1.0 [CM4]\r\n"
76 #define GREETING_MESSAGE_INFO "[BlinkyApp] Red led blinks with 1 sec period\r\n"
77 #elif defined(UPGRADE_IMG)
78 #define BLINK_PERIOD (250u)
79 #define GREETING_MESSAGE_VER "[BlinkyApp] BlinkyApp v2.0 [+]\r\n"
80 #define GREETING_MESSAGE_INFO "[BlinkyApp] Red led blinks with 0.25 sec period\r\n"
81 #else
82 #error "[BlinkyApp] Please specify type of image: -DBOOT_IMG or -DUPGRADE_IMG\r\n"
83 #endif
84
check_result(int res)85 void check_result(int res)
86 {
87 if (res != CY_RSLT_SUCCESS) {
88 CY_ASSERT(0);
89 }
90 }
91
test_app_init_hardware(void)92 void test_app_init_hardware(void)
93 {
94 /* enable interrupts */
95 __enable_irq();
96
97 /* Disabling watchdog so it will not interrupt normal flow later */
98 Cy_GPIO_Pin_Init(LED_PORT, LED_PIN, &LED_config);
99 /* Initialize retarget-io to use the debug UART port */
100 check_result(cy_retarget_io_init(CY_DEBUG_UART_TX, CY_DEBUG_UART_RX,
101 CY_RETARGET_IO_BAUDRATE));
102
103 printf("\n===========================\r\n");
104 printf(GREETING_MESSAGE_VER);
105 printf("===========================\r\n");
106
107 printf("[BlinkyApp] GPIO initialized \r\n");
108 printf("[BlinkyApp] UART initialized \r\n");
109 printf("[BlinkyApp] Retarget I/O set to 115200 baudrate \r\n");
110
111 }
112
main(void)113 int main(void)
114 {
115 uint32_t blinky_period = BLINK_PERIOD;
116
117 test_app_init_hardware();
118
119 printf(GREETING_MESSAGE_INFO);
120
121 /* Update watchdog timer to mark successful start up of application */
122 printf(WATCHDOG_UPD_MESSAGE);
123 cy_wdg_kick();
124 printf(WATCHDOG_FREE_MESSAGE);
125 cy_wdg_free();
126
127 for (;;)
128 {
129 /* Toggle the user LED periodically */
130 Cy_SysLib_Delay(blinky_period/2);
131
132 /* Invert the USER LED state */
133 Cy_GPIO_Inv(LED_PORT, LED_PIN);
134 }
135 return 0;
136 }
137
