本文整理汇总了C++中CPU_SR_ALLOC函数的典型用法代码示例。如果您正苦于以下问题：C++ CPU_SR_ALLOC函数的具体用法？C++ CPU_SR_ALLOC怎么用？C++ CPU_SR_ALLOC使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了CPU_SR_ALLOC函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: led0_task
//led0任务函数
void led0_task(void *p_arg)
{
OS_ERR err;
u8 test[20];
u8 times = 0;
CPU_SR_ALLOC();
u8 temp;
p_arg = p_arg;
while(1)
{
OS_CRITICAL_ENTER();
temp = FloatTaskTCB.MsgQ.NbrEntriesSize - FloatTaskTCB.MsgQ.NbrEntries;
printf("que remain %d.\r\n",temp);
OS_CRITICAL_EXIT();
sprintf((char *)test,"led_send_que %d",times++);
printf("led0 task send que.\r\n");
OSTaskQPost((OS_TCB* )&FloatTaskTCB, //向任务Msgdis发送消息
(void* )test,
(OS_MSG_SIZE)20,
(OS_OPT )OS_OPT_POST_FIFO,
(OS_ERR* )&err);
OSTimeDlyHMSM(0,0,1,0,OS_OPT_TIME_HMSM_STRICT,&err); //延时1s
}
}
开发者ID:BearZPY，项目名称:STM32-uCOSIII，代码行数:27，代码来源:led_task.c
示例2: CPU_SR_ALLOC
void *SerialOS_SemCreate (CPU_INT16U cnt)
{
OS_EVENT *psem;
INT8U os_err;
CPU_SR_ALLOC();
CPU_CRITICAL_ENTER();
if (OSEventObjIx < 1u) {
CPU_CRITICAL_EXIT();
return ((void *)0);
}
if (OSEventObjIx > SERIAL_OS_MAX_NBR_SEM) {
CPU_CRITICAL_EXIT();
return ((void *)0);
}
/* -------------- GET OS EVENT FROM POOL -------------- */
OSEventObjIx--;
psem = OSEventObj[OSEventObjIx];
CPU_CRITICAL_EXIT();
OSSemSet(psem, cnt, &os_err);
return ((void *)psem);
}
开发者ID:ptracton，项目名称:experimental，代码行数:27，代码来源:serial_os.c
示例3: OS_TLS_LockDel
void OS_TLS_LockDel (void *p_lock)
{
OS_TLS_LOCK *p_tls_lock;
OS_ERR os_err;
CPU_SR_ALLOC();
if (p_lock == (void *)0) {
return;
}
p_tls_lock = (OS_TLS_LOCK *)p_lock;
(void)OSMutexDel((OS_MUTEX *)&p_tls_lock->Mutex,
(OS_OPT ) OS_OPT_DEL_ALWAYS,
(OS_ERR *)&os_err);
(void)&os_err;
CPU_CRITICAL_ENTER();
/* Return the OS_TLS_LOCK in front of the list */
if (OS_TLS_LockPoolListPtr == (OS_TLS_LOCK *)0) {
p_tls_lock->NextPtr = (OS_TLS_LOCK *)0;
} else {
p_tls_lock->NextPtr = OS_TLS_LockPoolListPtr;
}
OS_TLS_LockPoolListPtr = p_tls_lock;
CPU_CRITICAL_EXIT();
}
开发者ID:Akagi201，项目名称:uCOS-III，代码行数:29，代码来源:os_tls.c
示例4: SerialBuf_WrOctet
CPU_BOOLEAN SerialBuf_WrOctet (SERIAL_BUF *pbuf,
CPU_INT08U datum)
{
CPU_SIZE_T empty_cnt;
CPU_SIZE_T ix_wr;
CPU_SIZE_T len;
CPU_SR_ALLOC();
CPU_CRITICAL_ENTER();
empty_cnt = pbuf->EmptyCnt;
if (empty_cnt == 0) {
CPU_CRITICAL_EXIT();
return (DEF_NO);
}
ix_wr = pbuf->IxWr;
pbuf->DataPtr[ix_wr] = datum;
pbuf->EmptyCnt = empty_cnt - 1;
len = pbuf->Len;
if (ix_wr + 1 == len) {
pbuf->IxWr = 0;
} else {
pbuf->IxWr = ix_wr + 1;
}
CPU_CRITICAL_EXIT();
return (DEF_YES);
}
开发者ID:ptracton，项目名称:experimental，代码行数:31，代码来源:serial_buf.c
示例5: SerialBuf_RdOctet
CPU_BOOLEAN SerialBuf_RdOctet (SERIAL_BUF *pbuf,
CPU_INT08U *pdatum)
{
CPU_SIZE_T empty_cnt;
CPU_SIZE_T ix_rd;
CPU_SIZE_T len;
CPU_SR_ALLOC();
CPU_CRITICAL_ENTER();
len = pbuf->Len;
empty_cnt = pbuf->EmptyCnt;
if (empty_cnt == len) {
CPU_CRITICAL_EXIT();
return (DEF_NO);
}
ix_rd = pbuf->IxRd;
*pdatum = pbuf->DataPtr[ix_rd];
pbuf->EmptyCnt = empty_cnt + 1;
if (ix_rd + 1 == len) {
pbuf->IxRd = 0;
} else {
pbuf->IxRd = ix_rd + 1;
}
CPU_CRITICAL_EXIT();
return (DEF_YES);
}
开发者ID:ptracton，项目名称:experimental，代码行数:31，代码来源:serial_buf.c
示例6: CPU_SR_ALLOC
void *OSMemGet (OS_MEM *p_mem,
OS_ERR *p_err)
{
void *p_blk;
CPU_SR_ALLOC();
#ifdef OS_SAFETY_CRITICAL
if (p_err == (OS_ERR *)0) {
OS_SAFETY_CRITICAL_EXCEPTION();
return ((void *)0);
}
#endif
#if OS_CFG_ARG_CHK_EN > 0u
if (p_mem == (OS_MEM *)0) { /* Must point to a valid memory partition */
*p_err = OS_ERR_MEM_INVALID_P_MEM;
return ((void *)0);
}
#endif
CPU_CRITICAL_ENTER();
if (p_mem->NbrFree == (OS_MEM_QTY)0) { /* See if there are any free memory blocks */
CPU_CRITICAL_EXIT();
*p_err = OS_ERR_MEM_NO_FREE_BLKS; /* No, Notify caller of empty memory partition */
return ((void *)0); /* Return NULL pointer to caller */
}
p_blk = p_mem->FreeListPtr; /* Yes, point to next free memory block */
p_mem->FreeListPtr = *(void **)p_blk; /* Adjust pointer to new free list */
p_mem->NbrFree--; /* One less memory block in this partition */
CPU_CRITICAL_EXIT();
*p_err = OS_ERR_NONE; /* No error */
return (p_blk); /* Return memory block to caller */
}
开发者ID:FanNiu，项目名称:wildfire_stm32_iso_mini，代码行数:35，代码来源:os_mem.c
示例7: OS_TLS_SetDestruct
void OS_TLS_SetDestruct (OS_TLS_ID id,
OS_TLS_DESTRUCT_PTR p_destruct,
OS_ERR *p_err)
{
CPU_SR_ALLOC();
#ifdef OS_SAFETY_CRITICAL
if (p_err == (OS_ERR *)0) {
OS_SAFETY_CRITICAL_EXCEPTION();
return;
}
#endif
if (id >= OS_TLS_NextAvailID) { /* See if we exceeded the number of TLS IDs available */
*p_err = OS_ERR_TLS_ID_INVALID;
return;
}
if (OS_TLS_DestructPtrTbl[id] != (OS_TLS_DESTRUCT_PTR)0) { /* Can only assign a destructor once */
*p_err = OS_ERR_TLS_DESTRUCT_ASSIGNED;
return;
}
CPU_CRITICAL_ENTER();
OS_TLS_DestructPtrTbl[id] = p_destruct;
CPU_CRITICAL_EXIT();
*p_err = OS_ERR_NONE;
}
开发者ID:Akagi201，项目名称:uCOS-III，代码行数:29，代码来源:os_tls.c
示例8: SerialBuf_Cmp
CPU_BOOLEAN SerialBuf_Cmp (SERIAL_BUF *pbuf,
CPU_INT08U datum)
{
CPU_SIZE_T ix_rd;
CPU_BOOLEAN full;
CPU_SR_ALLOC();
CPU_CRITICAL_ENTER();
full = SerialBuf_IsFull(pbuf);
if (full == DEF_NO) {
CPU_CRITICAL_EXIT();
return (DEF_NO);
}
ix_rd = pbuf->IxRd;
if(pbuf->DataPtr[ix_rd] != datum) {
pbuf->IxRd = 0; /* Reset comparison. */
CPU_CRITICAL_EXIT();
return (DEF_NO);
}
ix_rd++;
if (ix_rd == pbuf->Len) {
pbuf->IxRd = 0;
CPU_CRITICAL_EXIT();
return (DEF_YES);
}
pbuf->IxRd = ix_rd;
CPU_CRITICAL_EXIT();
return (DEF_NO);
}
开发者ID:ptracton，项目名称:experimental，代码行数:34，代码来源:serial_buf.c
示例9: PngGetData
/*********************************************************************
*
* PngGetData
*
* Function description
* This routine is called by GUI_PNG_DrawEx(). The routine is responsible
* for setting the data pointer to a valid data location with at least
* one valid byte.
*
* Parameters:
* p - Pointer to application defined data.
* NumBytesReq - Number of bytes requested.
* ppData - Pointer to data pointer. This pointer should be set to
* a valid location.
* StartOfFile - If this flag is 1, the data pointer should be set to the
* beginning of the data stream.
*
* Return value:
* Number of data bytes available.
*/
static int PngGetData(void * p, const U8 ** ppData, unsigned NumBytesReq, U32 Off)
{
static int readaddress=0;
FIL * phFile;
U8 *pData;
UINT NumBytesRead;
#if SYSTEM_SUPPORT_OS
CPU_SR_ALLOC();
#endif
pData = (U8*)*ppData;
phFile = (FIL *)p;
//移动指针到应该读取的位置
if(Off == 1) readaddress = 0;
else readaddress=Off;
#if SYSTEM_SUPPORT_OS
OS_CRITICAL_ENTER(); //临界区
#endif
f_lseek(phFile,readaddress);
//读取数据到缓冲区中
f_read(phFile,pData,NumBytesReq,&NumBytesRead);
#if SYSTEM_SUPPORT_OS
OS_CRITICAL_EXIT();//退出临界区
#endif
return NumBytesRead;//返回读取到的字节数
}
开发者ID:fanwenl，项目名称:STM32F469，代码行数:51，代码来源:displaypng.c
示例10: CSP_TmrInit
void CSP_TmrInit (void)
{
CSP_DEV_NBR per_nbr;
CSP_DEV_NBR tmr_nbr;
CSP_TMR_REG *p_tmr_reg;
CPU_SR_ALLOC();
for (tmr_nbr = CSP_TMR_NBR_00; tmr_nbr <= CSP_TMR_NBR_03; tmr_nbr++) {
p_tmr_reg = (CSP_TMR_REG *)CSP_TmrAddrTbl[tmr_nbr];
per_nbr = (CSP_DEV_NBR )CSP_TmrPerTbl[tmr_nbr];
CPU_CRITICAL_ENTER();
CSP_PM_PerClkEn(per_nbr);
p_tmr_reg->MCR = DEF_BIT_NONE;
p_tmr_reg->MRx[0] = 0u;
p_tmr_reg->MRx[1] = 0u;
p_tmr_reg->MRx[2] = 0u;
p_tmr_reg->IR = DEF_BIT_FIELD(5u, 0u);
p_tmr_reg->TCR = DEF_BIT_NONE;
p_tmr_reg->MCR = DEF_BIT_NONE;
p_tmr_reg->EMR = DEF_BIT_NONE;
CSP_PM_PerClkDis(per_nbr);
CPU_CRITICAL_EXIT();
}
}
开发者ID:strahlex，项目名称:LPC_Ethernet，代码行数:26，代码来源:csp_tmr.c
示例11: CSP_DMA_CH_FreeExt
CPU_BOOLEAN CSP_DMA_CH_FreeExt (CSP_DEV_NBR ch_nbr)
{
CSP_DMA_REG *p_dma_reg;
CSP_DMA_CH_REG *p_dma_ch_reg;
CSP_DMA_CH *p_ch_tbl;
CPU_SR_ALLOC();
#if (CSP_CFG_ARG_CHK_EN == DEF_ENABLED)
if (ch_nbr > CSP_DMA_CH_MAX_NBR - 1u) {
return (DEF_FAIL);
}
#endif
p_dma_reg = (CSP_DMA_REG *)CSP_ADDR_DMA_REG;
p_dma_ch_reg = &(p_dma_reg->CHx[ch_nbr]);
p_ch_tbl = &CSP_DMA_ChTbl[ch_nbr];
CPU_CRITICAL_ENTER();
p_dma_reg->IntTCClr = DEF_BIT(ch_nbr); /* Clear all pending interrupts. */
p_dma_reg->IntErrClr = DEF_BIT(ch_nbr);
p_ch_tbl->State = CSP_DMA_CH_STATE_FREE; /* Free the channel. */
p_dma_ch_reg->SrcAddr = DEF_BIT_NONE; /* Unitialize DMA channel cfg & ctrl registers. */
p_dma_ch_reg->DestAddr = DEF_BIT_NONE;
p_dma_ch_reg->Cfg = DEF_BIT_NONE;
p_dma_ch_reg->Ctrl = DEF_BIT_NONE;
CPU_CRITICAL_EXIT();
return (DEF_OK);
}
开发者ID:strahlex，项目名称:LPC_Ethernet，代码行数:31，代码来源:csp_dma.c
示例12: OSTimeDly
void OSTimeDly (OS_TICK dly,
OS_OPT opt,
OS_ERR *p_err)
{
CPU_SR_ALLOC();
#ifdef OS_SAFETY_CRITICAL
if (p_err == (OS_ERR *)0) {
OS_SAFETY_CRITICAL_EXCEPTION();
return;
}
#endif
#if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u
if (OSIntNestingCtr > (OS_NESTING_CTR)0u) { /* Not allowed to call from an ISR */
*p_err = OS_ERR_TIME_DLY_ISR;
return;
}
#endif
if (OSSchedLockNestingCtr > (OS_NESTING_CTR)0u) { /* Can't delay when the scheduler is locked */
*p_err = OS_ERR_SCHED_LOCKED;
return;
}
switch (opt) {
case OS_OPT_TIME_DLY:
case OS_OPT_TIME_TIMEOUT:
case OS_OPT_TIME_PERIODIC:
if (dly == (OS_TICK)0u) { /* 0 means no delay! */
*p_err = OS_ERR_TIME_ZERO_DLY;
return;
}
break;
case OS_OPT_TIME_MATCH:
break;
default:
*p_err = OS_ERR_OPT_INVALID;
return;
}
OS_CRITICAL_ENTER();
OSTCBCurPtr->TaskState = OS_TASK_STATE_DLY;
OS_TickListInsert(OSTCBCurPtr,
dly,
opt,
p_err);
if (*p_err != OS_ERR_NONE) {
OS_CRITICAL_EXIT_NO_SCHED();
return;
}
OS_RdyListRemove(OSTCBCurPtr); /* Remove current task from ready list */
OS_CRITICAL_EXIT_NO_SCHED();
OSSched(); /* Find next task to run! */
*p_err = OS_ERR_NONE;
}
开发者ID:AtomicForceMiscrocopy，项目名称:ucos3-stm32f4-discovery-AFM，代码行数:60，代码来源:os_time.c
示例13: OS_TLS_LockCreate
void OS_TLS_LockCreate (void **p_lock)
{
OS_TLS_LOCK *p_tls_lock;
OS_ERR os_err;
CPU_SR_ALLOC();
if (p_lock == (void **)0) {
return;
}
if (OS_TLS_LockPoolListPtr == (OS_TLS_LOCK *)0) { /* If 'OS_TLS_LOCK' object pool is empty? */
*p_lock = (void *)0; /* return a 'NULL' pointer. */
return;
}
p_tls_lock = OS_TLS_LockPoolListPtr; /* Get the first object in the list. */
OSMutexCreate((OS_MUTEX *)&p_tls_lock->Mutex, /* Create the mutex in the kernel. */
(CPU_CHAR *) 0,
(OS_ERR *)&os_err);
if (os_err != OS_ERR_NONE) { /* If the mutex create funtion fail? */
*p_lock = (void *)0; /* ... return a 'NULL' pointer. */
return;
}
CPU_CRITICAL_ENTER();
OS_TLS_LockPoolListPtr = p_tls_lock->NextPtr; /* Move HEAD pointer to the next object in the list.*/
CPU_CRITICAL_EXIT();
*p_lock = (void *)p_tls_lock; /* Return the new 'OS_TLS_LOCK' object pointer. */
}
开发者ID:Akagi201，项目名称:uCOS-III，代码行数:33，代码来源:os_tls.c
示例14: OS_TLS_Init
void OS_TLS_Init (OS_ERR *p_err)
{
CPU_INT16U ix;
OS_TLS_LOCK *p_lock;
CPU_SR_ALLOC();
OS_TLS_NextAvailID = 0u;
OS_TLS_LibID = OS_TLS_GetID(p_err);
CPU_CRITICAL_ENTER();
/* Create the link list of OS_TLS_LOCK objects. */
for (ix = 0u; ix < (OS_TLS_LOCK_MAX - 1u); ix++) {
p_lock = &OS_TLS_LockPoolTbl[ix];
p_lock->NextPtr = &OS_TLS_LockPoolTbl[ix + 1u];
}
p_lock = &OS_TLS_LockPoolTbl[OS_TLS_LOCK_MAX - 1u];
p_lock->NextPtr = (OS_TLS_LOCK *)0; /* Last node points to 'NULL' */
OS_TLS_LockPoolListPtr = &OS_TLS_LockPoolTbl[0]; /* Initialize the list head pointer. */
CPU_CRITICAL_EXIT();
}
开发者ID:Akagi201，项目名称:uCOS-III，代码行数:25，代码来源:os_tls.c
示例15: OS_TickTask
void OS_TickTask (void *p_arg)
{
OS_ERR err;
CPU_TS ts_delta;
CPU_TS ts_delta_dly;
CPU_TS ts_delta_timeout;
CPU_SR_ALLOC();
(void)&p_arg; /* Prevent compiler warning */
while (DEF_ON) {
(void)OSTaskSemPend((OS_TICK )0,
(OS_OPT )OS_OPT_PEND_BLOCKING,
(CPU_TS *)0,
(OS_ERR *)&err); /* Wait for signal from tick interrupt */
if (err == OS_ERR_NONE) {
OS_CRITICAL_ENTER();
OSTickCtr++; /* Keep track of the number of ticks */
#if (defined(TRACE_CFG_EN) && (TRACE_CFG_EN > 0u))
TRACE_OS_TICK_INCREMENT(OSTickCtr); /* Record the event. */
#endif
OS_CRITICAL_EXIT();
ts_delta_dly = OS_TickListUpdateDly();
ts_delta_timeout = OS_TickListUpdateTimeout();
ts_delta = ts_delta_dly + ts_delta_timeout; /* Compute total execution time of list updates */
if (OSTickTaskTimeMax < ts_delta) {
OSTickTaskTimeMax = ts_delta;
}
}
}
}
开发者ID:PlainSailing，项目名称:K60_uCOSIII，代码行数:32，代码来源:os_tick.c
示例16: OS_TLS_GetID
OS_TLS_ID OS_TLS_GetID (OS_ERR *p_err)
{
OS_TLS_ID id;
CPU_SR_ALLOC();
#ifdef OS_SAFETY_CRITICAL
if (p_err == (OS_ERR *)0) {
OS_SAFETY_CRITICAL_EXCEPTION();
return ((OS_TLS_ID)OS_CFG_TLS_TBL_SIZE);
}
#endif
CPU_CRITICAL_ENTER();
if (OS_TLS_NextAvailID >= OS_CFG_TLS_TBL_SIZE) { /* See if we exceeded the number of IDs available */
*p_err = OS_ERR_TLS_NO_MORE_AVAIL; /* Yes, cannot allocate more TLS */
CPU_CRITICAL_EXIT();
return ((OS_TLS_ID)OS_CFG_TLS_TBL_SIZE);
}
id = OS_TLS_NextAvailID; /* Assign the next available ID */
OS_TLS_NextAvailID++; /* Increment available ID for next request */
CPU_CRITICAL_EXIT();
*p_err = OS_ERR_NONE;
return (id);
}
开发者ID:Akagi201，项目名称:uCOS-III，代码行数:27，代码来源:os_tls.c
示例17: float_task
//浮点测试任务
void float_task(void *p_arg)
{
OS_ERR err;
CPU_SR_ALLOC();
static float float_num = 0.01;
//uint32_t temp = &float_num;
while(1)
{
float_num+=0.01f;
OS_CRITICAL_ENTER(); //进入临界区
//printf("float_num的值为: %.4f\r\n",float_num);
OS_CRITICAL_EXIT(); //退出临界区
if(float_num > 0.901f && float_num < 0.919f)
{
OSTaskSuspend((OS_TCB*)&Led0TaskTCB,&err);
printf("挂起LED任务\n\r");
}
if(float_num > 1.991f && float_num < 2.001f)
{
OSTaskResume((OS_TCB*)&Led0TaskTCB,&err);
printf("恢复LED任务\n\r");
float_num = 0.0f;
}
OSTimeDlyHMSM(0,0,0,300,OS_OPT_TIME_HMSM_STRICT,&err); //延时300ms
}
}
开发者ID:HEKR-Cloud，项目名称:HEKR-MCU-SDK，代码行数:27，代码来源:float_task.c
示例18: SerialOS_SemDel
void SerialOS_SemDel (void *psem)
{
INT8U os_err;
#if (SERIAL_CFG_ARG_CHK_EXT_EN == DEF_ENABLED)
CPU_SIZE_T i;
#endif
CPU_SR_ALLOC();
OSSemPendAbort((OS_EVENT *) psem,
(INT8U ) OS_PEND_OPT_BROADCAST,
(INT8U *)&os_err);
CPU_CRITICAL_ENTER();
if (OSEventObjIx >= SERIAL_OS_MAX_NBR_SEM) {
CPU_CRITICAL_EXIT();
return;
}
#if (SERIAL_CFG_ARG_CHK_EXT_EN == DEF_ENABLED) /* ----------------- VALIDATE OS EVENT ---------------- */
for (i = 0u; i < OSEventObjIx; i++) {
if (OSEventObj[i] == (OS_EVENT *)psem) {
CPU_CRITICAL_EXIT();
return;
}
}
#endif
/* --------------- FREE OS EVENT TO POOL -------------- */
OSEventObj[OSEventObjIx] = (OS_EVENT *)psem;
OSEventObjIx++;
CPU_CRITICAL_EXIT();
}
开发者ID:ptracton，项目名称:experimental，代码行数:33，代码来源:serial_os.c
示例19: main
//主函数
int main(void)
{
OS_ERR err;
CPU_SR_ALLOC();
delay_init(168); //时钟初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//中断分组配置
uart_init(115200); //串口初始化
LED_Init(); //LED初始化
LCD_Init(); //LCD初始化
KEY_Init(); //按键初始化
BEEP_Init(); //初始化蜂鸣器
FSMC_SRAM_Init(); //初始化SRAM
my_mem_init(SRAMIN);//初始化内部RAM
ucos_load_main_ui();//加载主UI
OSInit(&err); //初始化UCOSIII
OS_CRITICAL_ENTER(); //进入临界区
//创建开始任务
OSTaskCreate((OS_TCB * )&StartTaskTCB, //任务控制块
(CPU_CHAR * )"start task", //任务名字
(OS_TASK_PTR )start_task, //任务函数
(void * )0, //传递给任务函数的参数
(OS_PRIO )START_TASK_PRIO, //任务优先级
(CPU_STK * )&START_TASK_STK[0], //任务堆栈基地址
(CPU_STK_SIZE)START_STK_SIZE/10, //任务堆栈深度限位
(CPU_STK_SIZE)START_STK_SIZE, //任务堆栈大小
(OS_MSG_QTY )0, //任务内部消息队列能够接收的最大消息数目,为0时禁止接收消息
(OS_TICK )0, //当使能时间片轮转时的时间片长度，为0时为默认长度，
(void * )0, //用户补充的存储区
(OS_OPT )OS_OPT_TASK_STK_CHK|OS_OPT_TASK_STK_CLR, //任务选项
(OS_ERR * )&err); //存放该函数错误时的返回值
OS_CRITICAL_EXIT(); //退出临界区
OSStart(&err); //开启UCOSIII
}
开发者ID:wms124，项目名称:STM32_UCOSIII，代码行数:36，代码来源:main.c
示例20: CSP_DMA_XferStartExt
CPU_BOOLEAN CSP_DMA_XferStartExt (CSP_DEV_NBR ch_nbr,
void *p_dest,
void *p_src,
CPU_SIZE_T xfer_size,
CSP_OPT_FLAGS opt)
{
CSP_DMA_REG *p_dma_reg;
CSP_DMA_CH_REG *p_dma_ch_reg;
CPU_INT32U reg_ctrl;
CPU_SR_ALLOC();
/* ------------------ ARGUMENTS CHECKING -------------- */
#if (CSP_CFG_ARG_CHK_EN == DEF_ENABLED)
if (ch_nbr > CSP_DMA_CH_MAX_NBR - 1u) { /* Invalid channel number? */
return (DEF_FAIL);
}
/* Channel not available? */
if (CSP_DMA_ChTbl[ch_nbr].State != CSP_DMA_CH_STATE_ALLOC) {
return (DEF_FAIL);
}
if ((p_dest == (void *)0) || /* Null pointers? */
(p_src == (void *)0)) {
return (DEF_FAIL);
}
#endif
p_dma_reg = (CSP_DMA_REG *)CSP_ADDR_DMA_REG;
p_dma_ch_reg = &(p_dma_reg->CHx[ch_nbr]);
reg_ctrl = p_dma_ch_reg->Ctrl;
DEF_BIT_CLR(reg_ctrl, CSP_DMA_MSK_CH_CTRL_XFER_SIZE |
CSP_DMA_BIT_CH_CTRL_SI |
CSP_DMA_BIT_CH_CTRL_DI |
CSP_DMA_BIT_CH_CTRL_I);
DEF_BIT_SET(reg_ctrl, (xfer_size & CSP_DMA_MSK_CH_CTRL_XFER_SIZE));
if (DEF_BIT_IS_SET(opt, CSP_DMA_OPT_FLAG_XFER_SRC_INC)) {
DEF_BIT_SET(reg_ctrl, CSP_DMA_BIT_CH_CTRL_SI);
}
if (DEF_BIT_IS_SET(opt, CSP_DMA_OPT_FLAG_XFER_DEST_INC)) {
DEF_BIT_SET(reg_ctrl, CSP_DMA_BIT_CH_CTRL_DI);
}
CPU_CRITICAL_ENTER();
p_dma_ch_reg->SrcAddr = (CPU_INT32U )p_src;
p_dma_ch_reg->DestAddr = (CPU_INT32U )p_dest;
p_dma_ch_reg->Ctrl = reg_ctrl;
DEF_BIT_CLR(p_dma_ch_reg->Cfg, CSP_DMA_BIT_CH_CFG_ITC |
CSP_DMA_BIT_CH_CFG_IE);
DEF_BIT_SET(p_dma_ch_reg->Cfg, CSP_DMA_BIT_CH_CFG_CH_EN);
CPU_CRITICAL_EXIT();
return (DEF_OK);
}
开发者ID:strahlex，项目名称:LPC_Ethernet，代码行数:59，代码来源:csp_dma.c
注：本文中的CPU_SR_ALLOC函数示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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