随着时间的推移，第一批收到光立方套件的网友们已经完成了焊接工作，开始了程序的编写与硬件检测的阶段。版主为了缩短STM32芯片程序开发的过程，节省由于软件问题带来的硬件检测异常，编写光立方硬件测试代码。现将源代码分享给大家。
第一部分：底层spi驱动配置与数据显示
BSP文件头文件
#define LAYERn 8
#define LAYER0_PIN GPIO_Pin_11
#define LAYER0_GPIO_PORT GPIOB
#define LAYER0_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER1_PIN GPIO_Pin_10
#define LAYER1_GPIO_PORT GPIOB
#define LAYER1_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER2_PIN GPIO_Pin_1
#define LAYER2_GPIO_PORT GPIOB
#define LAYER2_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER3_PIN GPIO_Pin_0
#define LAYER3_GPIO_PORT GPIOB
#define LAYER3_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER4_PIN GPIO_Pin_6
#define LAYER4_GPIO_PORT GPIOB
#define LAYER4_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER5_PIN GPIO_Pin_7
#define LAYER5_GPIO_PORT GPIOB
#define LAYER5_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER6_PIN GPIO_Pin_8
#define LAYER6_GPIO_PORT GPIOB
#define LAYER6_GPIO_CLK RCC_APB2Periph_GPIOB
#define LAYER7_PIN GPIO_Pin_9
#define LAYER7_GPIO_PORT GPIOB
#define LAYER7_GPIO_CLK RCC_APB2Periph_GPIOB
BSP文件
/**
* @brief called from main.c
* @param
* @retval
* @date 2014-03-24
* @note
*/
void Bsp_Init(void)
{
SysClockInit();
Bsp_LayerInit();
Uart1Init(115200);
HC595_Init();
}
/**
* @brief initial the sysclock,
* @param
* @retval
* @date 2014-03-24
* @note
*/
static void SysClockInit(void)
{
/* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------------------------*/
/* RCC system reset(for debug purpose) */
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if (HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* PLLCLK = 12MHz * 6 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_6); /* 此处需要根据外部晶振的改变而改变 */
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
else
{ /* If HSE fails to start-up, the application will have wrong clock configuration.
User can add here some code to deal with this error */
/* Go to infinite loop */
while (1)
{
}
}
}
/**
* @brief 初始化板载8层LED灯
* @param none
* @retval none
* @date 2014-04-27
* @note
*/
void Bsp_LayerInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(LAYER0_GPIO_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin = LAYER0_PIN | LAYER1_PIN | LAYER2_PIN | LAYER3_PIN | LAYER4_PIN | LAYER5_PIN | LAYER6_PIN | LAYER7_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(LAYER0_GPIO_PORT, &GPIO_InitStructure);
}
/**
* @brief 给某一层LED灯通电
* @param uint8_t lay
* @retval
* @date 2014-06-30
* @note
*/
void Bsp_LayerOn(uint8_t lay)
{
switch(lay)
{
case 0:
{
GPIO_SetBits(LAYER0_GPIO_PORT, LAYER0_PIN);
break;
}
case 1:
{
GPIO_SetBits(LAYER1_GPIO_PORT, LAYER1_PIN);
break;
}
case 2:
{
GPIO_SetBits(LAYER2_GPIO_PORT, LAYER2_PIN);
break;
}
case 3:
{
GPIO_SetBits(LAYER3_GPIO_PORT, LAYER3_PIN);
break;
}
case 4:
{
GPIO_SetBits(LAYER4_GPIO_PORT, LAYER4_PIN);
break;
}
case 5:
{
GPIO_SetBits(LAYER5_GPIO_PORT, LAYER5_PIN);
break;
}
case 6:
{
GPIO_SetBits(LAYER6_GPIO_PORT, LAYER6_PIN);
break;
}
case 7:
{
GPIO_SetBits(LAYER7_GPIO_PORT, LAYER7_PIN);
break;
}
}
}
/**
* @brief 给某一层LED灯断电
* @param uint8_t lay
* @retval
* @date 2014-06-30
* @note
*/
void Bsp_LayerOff(uint8_t lay)
{
switch(lay)
{
case 0:
{
GPIO_ResetBits(LAYER0_GPIO_PORT, LAYER0_PIN);
break;
}
case 1:
{
GPIO_ResetBits(LAYER1_GPIO_PORT, LAYER1_PIN);
break;
}
case 2:
{
GPIO_ResetBits(LAYER2_GPIO_PORT, LAYER2_PIN);
break;
}
case 3:
{
GPIO_ResetBits(LAYER3_GPIO_PORT, LAYER3_PIN);
break;
}
case 4:
{
GPIO_ResetBits(LAYER4_GPIO_PORT, LAYER4_PIN);
break;
}
case 5:
{
GPIO_ResetBits(LAYER5_GPIO_PORT, LAYER5_PIN);
break;
}
case 6:
{
GPIO_ResetBits(LAYER6_GPIO_PORT, LAYER6_PIN);
break;
}
case 7:
{
GPIO_ResetBits(LAYER7_GPIO_PORT, LAYER7_PIN);
break;
}
}
}
/**
* @brief 初始化74HC595的驱动方式，使用spi2接口
* @param none
* @retval none
* @date 2014-06-15
* @note 使用SPI2的单向，仅发送，低速APB1，最大36MHz
*/
void HC595_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
/*!< PB13 => SPI2_SCK(LED_SCK); PB15 => SPI2_MOSI(LED_TX) Periph clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
/*!< SPI2 Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
/*!< Configure SPI pins: SCK */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/*!< Configure sFLASH_SPI pins: MOSI */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_15;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/*!< SPI configuration */
SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Tx;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI2, &SPI_InitStructure);
/*!< Enable the sFLASH_SPI */
SPI_Cmd(SPI2, ENABLE);
/*!< Configure PB14 => ROW */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
/**
* @brief 发送一层的数据
* @param uint8_t *BufPtr:发送缓冲区，共8字节数据
* @retval
* @date 2014-06-17
* @note
*/
void H595SendData(const uint8_t *BufPtr)
{
/*!< Send byte through the SPI2 peripheral */
SPI_I2S_SendData(SPI2, *BufPtr);
/*!< Loop while DR register in not emplty */
while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_TXE) == RESET);
}
/**
* @brief 显示一次内容
* @param
* @retval
* @date 2014-07-10
* @note
*/
void DispLayer(const uint8_t *BufPtr)
{
uint8_t i;
for(i = 0; i < 8; i++)
{
H595SendData(BufPtr + i);
}
while (SPI_I2S_GetFlagStatus(SPI2, SPI_I2S_FLAG_BSY) == SET);
}
#include #include #include #include "content.h"
main文件
#include "main.h"
#include "bsp.h"
/** @addtogroup STM32_EEPW
* @{
*/
/** @defgroup LEDCUBE
* @brief
* @{
*/
/** @defgroup LEDCUBE_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup LEDCUBE_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup LEDCUBE_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup LEDCUBE_Private_Variables
* @{
*/
uint16_t gSecond= 0;
uint8_t gDisp = 0;
uint16_t gCount = 0;
/**
* @}
*/
/** @defgroup LEDCUBE_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @defgroup LEDCUBE_Private_Functions
* @{
*/
/**
* @brief main function
* @param
* @retval
* @date 2014-03-24
* @note
*/
void main(void)
{
Bsp_Init(); /*!< 底层外设模块初始化 */
if (SysTick_Config(72000)) /*!< 1000Hz(1ms)中断间隔 */
{
while (1);
}
while(true)
{
if(gCount == 2)
{
gCount = 0;
Bsp_LayerOff(gDisp); //关闭当前层的显示
gDisp++;
if(gDisp > 7)
{
gDisp = 0;
}
GPIO_ResetBits(GPIOB, GPIO_Pin_14);
DispLayer(content + gDisp * 8);
GPIO_SetBits(GPIOB, GPIO_Pin_14); //发送显示开启上升沿
GPIO_ResetBits(GPIOB, GPIO_Pin_14);
Bsp_LayerOn(gDisp); //打开当前层的显示
}
}
}
void SysTick_Handler(void)
{
if(gCount < 2)
{
gCount++;
}
else
{
gCount = 2;
}
if(gSecond < 1000)
{
gCount++;
}
else
{
gCount = 1000;
}
}
显示内容头文件
/**
* @brief 光立方显示内容，全亮
*
*/
const uint8_t content[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
本测试程序工程使用IAR for ARM 6.7版本编译。工程文件下载地址如下：
http://share.eepw.com.cn/share/download/id/166522
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STM32
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