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 /* Library includes. */
38 #include "stm32f10x_lib.h"
40 #define partstMAX_OUTPUT_LED ( 4 )
41 #define partstFIRST_LED GPIO_Pin_6
43 static unsigned short usOutputValue = 0;
45 /*-----------------------------------------------------------*/
47 void vParTestInitialise( void )
49 GPIO_InitTypeDef GPIO_InitStructure;
51 /* Configure PC.06, PC.07, PC.08 and PC.09 as output push-pull */
52 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9;
53 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
54 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
55 GPIO_Init( GPIOC, &GPIO_InitStructure );
57 /*-----------------------------------------------------------*/
59 void vParTestSetLED( unsigned portBASE_TYPE uxLED, signed portBASE_TYPE xValue )
65 if( uxLED < partstMAX_OUTPUT_LED )
67 usBit = partstFIRST_LED << uxLED;
69 if( xValue == pdFALSE )
71 usBit ^= ( unsigned short ) 0xffff;
72 usOutputValue &= usBit;
76 usOutputValue |= usBit;
79 GPIO_Write( GPIOC, usOutputValue );
84 /*-----------------------------------------------------------*/
86 void vParTestToggleLED( unsigned portBASE_TYPE uxLED )
92 if( uxLED < partstMAX_OUTPUT_LED )
94 usBit = partstFIRST_LED << uxLED;
96 if( usOutputValue & usBit )
98 usOutputValue &= ~usBit;
102 usOutputValue |= usBit;
105 GPIO_Write( GPIOC, usOutputValue );
110 /*-----------------------------------------------------------*/