2 * FreeRTOS Kernel V10.3.1
3 * Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a copy of
6 * this software and associated documentation files (the "Software"), to deal in
7 * the Software without restriction, including without limitation the rights to
8 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
9 * the Software, and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in all
13 * copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
17 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
18 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * http://www.FreeRTOS.org
23 * http://aws.amazon.com/freertos
28 /*-----------------------------------------------------------
29 * Simple parallel port IO routines.
30 *-----------------------------------------------------------*/
32 /* FreeRTOS.org includes. */
37 #define partstMAX_OUTPUT_LED ( 2 )
38 #define partstFIRST_LED GPIO_Pin_8
40 static unsigned short usOutputValue = 0;
42 /*-----------------------------------------------------------*/
44 void vParTestInitialise( void )
46 GPIO_InitTypeDef GPIO_InitStructure;
48 /* Enable LED GPIO clock. */
49 RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE );
51 /* Configure LED pins as output push-pull. */
52 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 ;
53 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
54 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
56 GPIO_Init( GPIOB, &GPIO_InitStructure );
58 /*-----------------------------------------------------------*/
60 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
66 if( uxLED < partstMAX_OUTPUT_LED )
68 usBit = partstFIRST_LED << uxLED;
70 if( xValue == pdFALSE )
72 usBit ^= ( unsigned short ) 0xffff;
73 usOutputValue &= usBit;
77 usOutputValue |= usBit;
80 GPIO_Write( GPIOB, usOutputValue );
85 /*-----------------------------------------------------------*/
87 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
93 if( uxLED < partstMAX_OUTPUT_LED )
95 usBit = partstFIRST_LED << uxLED;
97 if( usOutputValue & usBit )
99 usOutputValue &= ~usBit;
103 usOutputValue |= usBit;
106 GPIO_Write( GPIOB, usOutputValue );
111 /*-----------------------------------------------------------*/