📄 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
* IAR STM32-SK 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_PB_WAKEUP DEF_BIT_00
#define GPIOA_MIC_IN DEF_BIT_01
#define GPIOA_UART2_TX DEF_BIT_02
#define GPIOA_UART2_RX DEF_BIT_03
#define GPIOA_LED1 DEF_BIT_04
#define GPIOA_LED2 DEF_BIT_05
#define GPIOA_LED3 DEF_BIT_06
#define GPIOA_LED4 DEF_BIT_07
#define GPIOA_PWM_OUT DEF_BIT_08
#define GPIOA_LED5 DEF_BIT_09
#define GPIOA_LED6 DEF_BIT_10
#define GPIOA_LEDS (GPIOA_LED1 | GPIOA_LED2 | GPIOA_LED3 | GPIOA_LED4 | GPIOA_LED5 | GPIOA_LED6)
/* ---------------------- GPIOB Pins ---------------------- */
#define GPIOB_LCD_LIGHT DEF_BIT_00
#define GPIOB_PB2 DEF_BIT_05
#define GPIOB_LED7 DEF_BIT_06
#define GPIOB_LED8 DEF_BIT_07
#define GPIOB_CAN_RX DEF_BIT_08
#define GPIOB_CAN_TX DEF_BIT_09
#define GPIOB_LED9 DEF_BIT_10
#define GPIOB_LED10 DEF_BIT_11
#define GPIOB_LED11 DEF_BIT_12
#define GPIOB_LED12 DEF_BIT_13
#define GPIOB_LED13 DEF_BIT_14
#define GPIOB_LED14 DEF_BIT_15
#define GPIOB_LEDS (GPIOB_LED7 | GPIOB_LED8 | GPIOB_LED9 | GPIOB_LED10 | GPIOB_LED11 | GPIOB_LED12 | GPIOB_LED13 | GPIOB_LED14)
/* ---------------------- GPIOC Pins ---------------------- */
#define GPIOC_LCD_DB4 DEF_BIT_00
#define GPIOC_LCD_DB5 DEF_BIT_01
#define GPIOC_LCD_DB6 DEF_BIT_02
#define GPIOC_LCD_DB7 DEF_BIT_03
#define GPIOC_PB3 DEF_BIT_04
#define GPIOC_POT DEF_BIT_05
#define GPIOC_LED15 DEF_BIT_06
#define GPIOC_LED16 DEF_BIT_07
#define GPIOC_LCD_RS DEF_BIT_08
#define GPIOC_LCD_RW DEF_BIT_09
#define GPIOC_USART3_TX DEF_BIT_10
#define GPIOC_USART3_RX DEF_BIT_11
#define GPIOC_LCD_E DEF_BIT_12
#define GPIOC_PB1 DEF_BIT_13
#define GPIOC_LCD_DB (GPIOC_LCD_DB4 | GPIOC_LCD_DB5 | GPIOC_LCD_DB6 | GPIOC_LCD_DB7)
#define GPIOC_LEDS (GPIOC_LED15 | GPIOC_LED16)
/*
*********************************************************************************************************
* 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 LCD_LightInit (void);
static void ADCS_Init (void);
#ifdef DISP_MODULE_PRESENT
static void DispE_High (void);
static void DispE_Low (void);
static void DispRW_Low (void);
static void DispTmr_Init (void);
static void DispTmr_Dly (CPU_INT32U dly);
#endif
/*
*********************************************************************************************************
* 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 controls */
LCD_LightInit(); /* Initialize the I/Os for the LCD backlight */
ADCS_Init(); /* Initialize the ADC for the potentiometer */
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, LED, LCD Backlight, and ADC 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_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
gpio_init.GPIO_Pin = GPIOA_PB_WAKEUP;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &gpio_init);
gpio_init.GPIO_Pin = GPIOB_PB2;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &gpio_init);
gpio_init.GPIO_Pin = GPIOC_PB1 | GPIOC_PB3;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &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 PB1 push button
* 2 probe the PB2 push button
* 3 probe the PB3 push button
* 4 probe the wakeup 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(GPIOC, GPIOC_PB1);
if (pin > 0) {
status = DEF_TRUE;
}
break;
case 2:
pin = GPIO_ReadInputDataBit(GPIOB, GPIOB_PB2);
if (pin > 0) {
status = DEF_TRUE;
}
break;
case 3:
pin = GPIO_ReadInputDataBit(GPIOC, GPIOC_PB3);
if (pin > 0) {
status = DEF_TRUE;
}
break;
case 4:
pin = GPIO_ReadInputDataBit(GPIOA, GPIOA_PB_WAKEUP);
if (pin > 0) {
status = DEF_TRUE;
}
break;
default:
break;
}
return (status);
}
/*
*********************************************************************************************************
* LED INITIALIZATION
*
* Description : This function initializes the board's LEDs
*
* Arguments : none
*
* Returns : none
*********************************************************************************************************
*/
static void LED_Init (void)
{
GPIO_InitTypeDef gpio_init;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
gpio_init.GPIO_Pin = GPIOA_LEDS;
gpio_init.GPIO_Speed = GPIO_Speed_50MHz;
gpio_init.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOA, &gpio_init);
gpio_init.GPIO_Pin = GPIOB_LEDS;
gpio_init.GPIO_Speed = GPIO_Speed_50MHz;
gpio_init.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &gpio_init);
gpio_init.GPIO_Pin = GPIOC_LEDS;
gpio_init.GPIO_Speed = GPIO_Speed_50MHz;
gpio_init.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &gpio_init);
}
/*
*********************************************************************************************************
* LED ON
*
* Description : This function is used to control any or all the LEDs on the board.
*
* Arguments : led is the number of the LED to control
* 0 indicates that you want ALL the LEDs to be ON
* 1 turns ON user LED1 on the board
* 2 turns ON user LED2 on the board
* .
* .
* .
* 16 turns ON user LED16 on the board
*
* Returns : none
*********************************************************************************************************
*/
void LED_On (CPU_INT08U led)
{
switch (led) {
case 0:
GPIO_ResetBits(GPIOA, GPIOA_LEDS);
GPIO_ResetBits(GPIOB, GPIOB_LEDS);
GPIO_ResetBits(GPIOC, GPIOC_LEDS);
break;
case 1:
GPIO_ResetBits(GPIOA, GPIOA_LED1);
break;
case 2:
GPIO_ResetBits(GPIOA, GPIOA_LED2);
break;
case 3:
GPIO_ResetBits(GPIOA, GPIOA_LED3);
break;
case 4:
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