📄 bsp.c
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/*
*********************************************************************************************************
* MICIRUM BOARD SUPPORT PACKAGE
*
* (c) Copyright 2007; Micrium, Inc.; Weston, FL
*
* All rights reserved. Protected by international copyright laws.
* Knowledge of the source code may NOT be used to develop a similar product.
* Please help us continue to provide the Embedded community with the finest
* software available. Your honesty is greatly appreciated.
*********************************************************************************************************
*/
/*
*********************************************************************************************************
*
* BOARD SUPPORT PACKAGE
*
* ST Microelectronics STM32
* with the
* STM3210B-EVAL Evaluation Board
*
* Filename : bsp.c
* Version : V1.00
* Programmer(s) : Brian Nagel
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* INCLUDE FILES
*********************************************************************************************************
*/
#define BSP_GLOBALS
#include <includes.h>
/*
*********************************************************************************************************
* LOCAL DEFINES
*********************************************************************************************************
*/
/* ---------------------- GPIOA Pins ---------------------- */
#define GPIOA_UART1_TX DEF_BIT_09
#define GPIOA_UART1_RX DEF_BIT_10
#define GPIOA_LCD_BL DEF_BIT_14
/* ---------------------- GPIOB Pins ---------------------- */
#define GPIOB_LCD_CS DEF_BIT_02
#define GPIOB_TEMP_INT DEF_BIT_05
#define GPIOB_TEMP_SCL DEF_BIT_06
#define GPIOB_TEMP_SDA DEF_BIT_07
#define GPIOB_AUDIO_PWM DEF_BIT_08
#define GPIOB_PB_KEY DEF_BIT_09
#define GPIOB_LCD_SCL DEF_BIT_13
#define GPIOB_LCD_SDO DEF_BIT_14
#define GPIOB_LCD_SDI DEF_BIT_15
/* ---------------------- GPIOC Pins ---------------------- */
#define GPIOC_POT DEF_BIT_04
#define GPIOC_LED1 DEF_BIT_06
#define GPIOC_LED2 DEF_BIT_07
#define GPIOC_LED3 DEF_BIT_08
#define GPIOC_LED4 DEF_BIT_09
/* ---------------------- GPIOD Pins ---------------------- */
#define GPIOD_CAN_RX DEF_BIT_00
#define GPIOD_CAN_TX DEF_BIT_01
#define GPIOD_UART2_CTS DEF_BIT_03
#define GPIOD_UART2_RTS DEF_BIT_04
#define GPIOD_UART2_TX DEF_BIT_05
#define GPIOD_UART2_RX DEF_BIT_06
#define GPIOD_LCD_RS DEF_BIT_07
#define GPIOD_JOY_UP DEF_BIT_08
#define GPIOD_JOY_SEL DEF_BIT_12
#define GPIOD_JOY_DOWN DEF_BIT_14
#define GPIOD_LCD_RD DEF_BIT_15
/* ---------------------- GPIOE Pins ---------------------- */
#define GPIOE_JOY_LEFT DEF_BIT_00
#define GPIOE_JOY_RIGHT DEF_BIT_01
/*
*********************************************************************************************************
* LOCAL CONSTANTS
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL DATA TYPES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL TABLES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL GLOBAL VARIABLES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL FUNCTION PROTOTYPES
*********************************************************************************************************
*/
static void Tmr_TickInit (void);
static void LED_Init (void);
static void PB_Init (void);
static void Joystick_Init (void);
/*
*********************************************************************************************************
* LOCAL CONFIGURATION ERRORS
*********************************************************************************************************
*/
/*
******************************************************************************************************************************
******************************************************************************************************************************
** Global Functions
******************************************************************************************************************************
******************************************************************************************************************************
*/
/*
*********************************************************************************************************
* BSP INITIALIZATION
*
* Description : This function should be called by your application code before you make use of any of the
* functions found in this module.
*
* Arguments : none
*********************************************************************************************************
*/
void BSP_Init (void)
{
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
RCC_WaitForHSEStartUp();
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_ADCCLKConfig(RCC_PCLK2_Div6);
FLASH_SetLatency(FLASH_Latency_2);
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
RCC_PLLCmd(ENABLE);
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {
;
}
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while (RCC_GetSYSCLKSource() != 0x08) {
;
}
LED_Init(); /* Initialize the I/Os for the LED controls */
PB_Init(); /* Initialize the I/Os for the PB control */
Joystick_Init(); /* Initialize the I/Os for the Joystick control */
LCD_Init();
LCD_Clear();
Tmr_TickInit(); /* Initialize the uC/OS-II tick interrupt */
}
/*
*********************************************************************************************************
* DISABLE ALL INTERRUPTS
*
* Description : This function disables all interrupts from the interrupt controller.
*
* Arguments : None.
*
* Returns : None.
*********************************************************************************************************
*/
void BSP_IntDisAll (void)
{
CPU_IntDis();
}
/*
*********************************************************************************************************
* GET THE CPU CLOCK FREQUENCY
*
* Description: This function reads CPU registers to determine the CPU clock frequency of the chip in KHz.
*
* Argument(s): None.
*
* Returns : The CPU clock frequency, in Hz.
*********************************************************************************************************
*/
CPU_INT32U BSP_CPU_ClkFreq (void)
{
static RCC_ClocksTypeDef rcc_clocks;
RCC_GetClocksFreq(&rcc_clocks);
return ((CPU_INT32U)rcc_clocks.HCLK_Frequency);
}
/*
******************************************************************************************************************************
******************************************************************************************************************************
** PB and LED Functions
******************************************************************************************************************************
******************************************************************************************************************************
*/
/*
*********************************************************************************************************
* PB INITIALIZATION
*
* Description : This function initializes the board's PB
*
* Arguments : none
*
* Returns ; none
*********************************************************************************************************
*/
static void PB_Init (void)
{
GPIO_InitTypeDef gpio_init;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
gpio_init.GPIO_Pin = GPIOB_PB_KEY;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &gpio_init);
}
/*
*********************************************************************************************************
* GET 'PUSH BUTTON' STATUS
*
* Description : This function is used to get the status of any push button on the board.
*
* Arguments : push_button is the number of the push button to probe
* 1 probe the user push button
*
* Returns : DEF_TRUE if the push button is pressed
* DEF_FALSE if the push button is not pressed
*********************************************************************************************************
*/
CPU_BOOLEAN PB_GetStatus (CPU_INT08U pb)
{
CPU_BOOLEAN status;
CPU_INT32U pin;
status = DEF_FALSE;
switch (pb) {
case 1:
pin = GPIO_ReadInputDataBit(GPIOB, GPIOB_PB_KEY);
if (pin == 0) {
status = DEF_TRUE;
}
break;
default:
break;
}
return (status);
}
/*
*********************************************************************************************************
* JOYSTICK INITIALIZATION
*
* Description : This function initializes the board's joystick.
*
* Arguments : none
*
* Returns : none
*********************************************************************************************************
*/
static void Joystick_Init (void)
{
GPIO_InitTypeDef gpio_init;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE, ENABLE);
/* Configure JOY_UP, JOY_SEL, JOY_DOWN */
gpio_init.GPIO_Pin = GPIOD_JOY_UP | GPIOD_JOY_SEL | GPIOD_JOY_DOWN;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOD, &gpio_init);
/* Configure JOY_LEFT & JOY_RIGHT */
gpio_init.GPIO_Pin = GPIOE_JOY_LEFT | GPIOE_JOY_RIGHT;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOE, &gpio_init);
}
/*
*********************************************************************************************************
* GET JOYSTICK STATUS
*
* Description : This function is used to get the status of the joystick on the board.
*
* Arguments : none
*
* Returns : JOYSTICK_CENTER if the joystick is being pressed.
* JOYSTICK_LEFT if the joystick is toggled left.
* JOYSTICK_RIGHT if the joystick is toggled right.
* JOYSTICK_UP if the joystick is toggled up.
* JOYSTICK_DOWN if the joystick is toggled down.
*
*********************************************************************************************************
*/
CPU_INT32U Joystick_GetStatus (void)
{
CPU_BOOLEAN pin;
CPU_BOOLEAN status;
status = 0;
pin = GPIO_ReadInputDataBit(GPIOE, GPIOE_JOY_RIGHT);
if (pin == 0) {
status |= JOYSTICK_LEFT;
}
pin = GPIO_ReadInputDataBit(GPIOE, GPIOE_JOY_LEFT);
if (pin == 0) {
status |= JOYSTICK_RIGHT;
}
pin = GPIO_ReadInputDataBit(GPIOD, GPIOD_JOY_UP);
if (pin == 0) {
status |= JOYSTICK_UP;
}
pin = GPIO_ReadInputDataBit(GPIOD, GPIOD_JOY_DOWN);
if (pin == 0) {
status |= JOYSTICK_DOWN;
}
pin = GPIO_ReadInputDataBit(GPIOD, GPIOD_JOY_SEL);
if (pin == 0) {
status |= JOYSTICK_CENTER;
}
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