Merge pull request #31 from RT-Thread/master

pr

.github/workflows/action.yml

@@ -123,7 +123,6 @@ jobs:
          - {RTT_BSP: "swm320", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "swm320-lq100", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "beaglebone", RTT_TOOL_CHAIN: "sourcery-arm"}
-         - {RTT_BSP: "zynq7000", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "zynqmp-r5-axu4ev", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "frdm-k64f", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "fh8620", RTT_TOOL_CHAIN: "sourcery-arm"}

Jenkinsfile

@@ -107,7 +107,6 @@ pipeline {
                         ['stm32f20x', 'sourcery-arm'],
                         ['swm320-lq100', 'sourcery-arm'],
                         ['beaglebone', 'sourcery-arm'],
-                        ['zynq7000', 'sourcery-arm'],
                         ['frdm-k64f', 'sourcery-arm'],
                         ['fh8620', 'sourcery-arm'],
                         ['xplorer4330/M4', 'sourcery-arm'],

bsp/bluetrum/ab32vg1-ab-prougen/board/Kconfig

@@ -176,6 +176,10 @@ menu "On-chip Peripheral Drivers"
             config RTC_USING_INTERNAL_CLK
             bool "Using internal clock RTC"
             default y
+            config RTC_USING_1S_INT
+            bool "Using 1 second interrupt"
+            depends on RT_USING_ALARM
+            default n
         endif
 
     menuconfig BSP_USING_ADC

bsp/bluetrum/libraries/hal_drivers/drv_rtc.c

@@ -7,6 +7,7 @@
  * Date           Author            Notes
  * 2021-01-28     greedyhao         first version
  * 2021-03-19     iysheng           modify just set time first power up
+ * 2021-03-26     iysheng           add alarm and 1s interrupt support
  */
 
 #include "board.h"
@@ -134,15 +135,22 @@ void hal_rtc_init(void)
 
         irtc_time_write(RTCCNT_CMD, sec);
     }
+#ifdef RT_USING_ALARM
+    RTCCON |= RTC_CON_ALM_INTERRUPT;
+#ifdef RTC_USING_1S_INT
+    RTCCON |= RTC_CON_1S_INTERRUPT;
+#endif
+#endif
 }
 /************** HAL End *******************/
 
-static time_t get_rtc_timestamp(void)
+static time_t get_rtc_time_stamp(void)
 {
     time_t sec = 0;
 
     sec = irtc_time_read(RTCCNT_CMD);
     LOG_D("get rtc time.");
+
     return sec;
 }
 
@@ -153,6 +161,22 @@ static rt_err_t set_rtc_time_stamp(time_t time_stamp)
     return RT_EOK;
 }
 
+static rt_err_t set_rtc_alarm_stamp(time_t alarm_stamp)
+{
+    irtc_time_write(RTCALM_CMD, alarm_stamp);
+
+    return RT_EOK;
+}
+
+static time_t get_rtc_alarm_stamp(void)
+{
+    time_t sec = 0;
+
+    sec = irtc_time_read(RTCALM_CMD);
+
+    return sec;
+}
+
 static void rt_rtc_init(void)
 {
     hal_rtc_init();
@@ -165,8 +189,8 @@ static rt_err_t rt_rtc_control(rt_device_t dev, int cmd, void *args)
     switch (cmd)
     {
     case RT_DEVICE_CTRL_RTC_GET_TIME:
-        *(rt_uint32_t *)args = get_rtc_timestamp();
-        LOG_D("RTC: get rtc_time %x\n", *(rt_uint32_t *)args);
+        *(rt_uint32_t *)args = get_rtc_time_stamp();
+        LOG_D("RTC: get rtc_time %x", *(rt_uint32_t *)args);
         break;
 
     case RT_DEVICE_CTRL_RTC_SET_TIME:
@@ -174,7 +198,18 @@ static rt_err_t rt_rtc_control(rt_device_t dev, int cmd, void *args)
         {
             result = -RT_ERROR;
         }
-        LOG_D("RTC: set rtc_time %x\n", *(rt_uint32_t *)args);
+        LOG_D("RTC: set rtc_time %x", *(rt_uint32_t *)args);
+        break;
+    case RT_DEVICE_CTRL_RTC_SET_ALARM:
+        if (set_rtc_alarm_stamp(*(rt_uint32_t *)args))
+        {
+            result = -RT_ERROR;
+        }
+        LOG_D("RTC: set alarm_stamp %x", *(rt_uint32_t *)args);
+        break;
+    case RT_DEVICE_CTRL_RTC_GET_ALARM:
+        *(rt_uint32_t *)args = get_rtc_alarm_stamp();
+        LOG_D("RTC: get alarm_stamp %x", *(rt_uint32_t *)args);
         break;
     }
 
@@ -217,15 +252,41 @@ static rt_err_t rt_hw_rtc_register(rt_device_t device, const char *name, rt_uint
     return rt_device_register(device, name, flag);
 }
 
+#ifdef RT_USING_ALARM
+static void rtc_isr(int vector, void *param)
+{
+    rt_interrupt_enter();
+
+    if (RTCCON & RTC_CON_ALM_PEND)
+    {
+        RTCCPND |= RTC_CPND_ALM;
+    }
+
+#ifdef RTC_USING_1S_INT
+    if (RTCCON & RTC_CON_1S_PEND)
+    {
+        RTCCPND |= RTC_CPND_1S;
+    }
+#endif
+
+    rt_interrupt_leave();
+}
+#endif
+
 int rt_hw_rtc_init(void)
 {
     rt_err_t result;
+
     result = rt_hw_rtc_register(&rtc, "rtc", RT_DEVICE_FLAG_RDWR);
     if (result != RT_EOK)
     {
         LOG_E("rtc register err code: %d", result);
         return result;
     }
+
+#ifdef RT_USING_ALARM
+    rt_hw_interrupt_install(IRQ_RTC_VECTOR, rtc_isr, RT_NULL, "rtc_isr");
+#endif
     LOG_D("rtc init success");
     return RT_EOK;
 }

bsp/bluetrum/libraries/hal_libraries/ab32vg1_hal/include/ab32vg1_hal_rtc.h

@@ -32,6 +32,10 @@ enum
 #define RTC_CON_BAUD_SELECT                 (0x3u <<  1)    /*!< Increase clock selection           */
 #define RTC_CON_CHIP_SELECT                 (0x1u <<  0)    /*!< RTC chip select                    */
 
+// RTCCPND
+#define RTC_CPND_1S                         (0x1u <<  18)    /*!< Clear RTC 1S pending              */
+#define RTC_CPND_ALM                      (0x1u <<  17)    /*!< Clear RTC alarm pendind           */
+
 // RTCCON0
 #define RTC_CON0_PWRUP_FIRST                (0x01u << 7)    /*!< RTC first power up flag            */
 #define RTC_CON0_INTERNAL_32K               (0x01u << 6)    /*!< Internal 32K select                */

bsp/efm32/Libraries/CMSIS/DSP_Lib/Source/ARM/arm_cortexMx_math_Build.bat

-
-SET TMP=C:\Temp
-SET TEMP=C:\Temp
-
-SET UVEXE=C:\Keil\UV4\UV4.EXE
-
-@echo   Building DSP Library for Cortex-M0 Little Endian
-%UVEXE% -rb arm_cortexM0x_math.uvproj -t"DSP_Lib CM0 LE" -o"DSP_Lib CM0 LE.txt" -j0
-
-@echo   Building DSP Library for Cortex-M0 Big Endian
-%UVEXE% -rb arm_cortexM0x_math.uvproj -t"DSP_Lib CM0 BE" -o"DSP_Lib CM0 BE.txt" -j0
-
-@echo   Building DSP Library for Cortex-M3 Little Endian
-%UVEXE% -rb arm_cortexM3x_math.uvproj -t"DSP_Lib CM3 LE" -o"DSP_Lib CM3 LE.txt" -j0
-
-@echo   Building DSP Library for Cortex-M3 Big Endian
-%UVEXE% -rb arm_cortexM3x_math.uvproj -t"DSP_Lib CM3 BE" -o"DSP_Lib CM3 BE.txt" -j0
-
-@echo   Building DSP Library for Cortex-M4 Little Endian
-%UVEXE% -rb arm_cortexM4x_math.uvproj -t"DSP_Lib CM4 LE" -o"DSP_Lib CM4 LE.txt" -j0
-
-@echo   Building DSP Library for Cortex-M4 Big Endian
-%UVEXE% -rb arm_cortexM4x_math.uvproj -t"DSP_Lib CM4 BE" -o"DSP_Lib CM4 BE.txt" -j0
-
-@echo   Building DSP Library for Cortex-M4 with FPU Little Endian
-%UVEXE% -rb arm_cortexM4x_math.uvproj -t"DSP_Lib CM4 LE FPU" -o"DSP_Lib CM4 LE FPU.txt" -j0
-
-@echo   Building DSP Library for Cortex-M4 with FPU Big Endian
-%UVEXE% -rb arm_cortexM4x_math.uvproj -t"DSP_Lib CM4 BE FPU" -o"DSP_Lib CM4 BE FPU.txt" -j0
\ No newline at end of file

bsp/efm32/Libraries/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_abs_f32.c

-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:		arm_abs_f32.c    
-*    
-* Description:	Vector absolute value.    
-*    
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated.    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
-* ---------------------------------------------------------------------------- */
-
-#include "arm_math.h"
-#include <math.h>
-
-/**        
- * @ingroup groupMath        
- */
-
-/**        
- * @defgroup BasicAbs Vector Absolute Value        
- *        
- * Computes the absolute value of a vector on an element-by-element basis.        
- *        
- * <pre>        
- *     pDst[n] = abs(pSrcA[n]),   0 <= n < blockSize.        
- * </pre>        
- *        
- * The operation can be done in-place by setting the input and output pointers to the same buffer.        
- * There are separate functions for floating-point, Q7, Q15, and Q31 data types.        
- */
-
-/**        
- * @addtogroup BasicAbs        
- * @{        
- */
-
-/**        
- * @brief Floating-point vector absolute value.        
- * @param[in]       *pSrc points to the input buffer        
- * @param[out]      *pDst points to the output buffer        
- * @param[in]       blockSize number of samples in each vector        
- * @return none.        
- */
-
-void arm_abs_f32(
-  float32_t * pSrc,
-  float32_t * pDst,
-  uint32_t blockSize)
-{
-  uint32_t blkCnt;                               /* loop counter */
-
-#ifndef ARM_MATH_CM0
-
-  /* Run the below code for Cortex-M4 and Cortex-M3 */
-  float32_t in1, in2, in3, in4;                  /* temporary variables */
-
-  /*loop Unrolling */
-  blkCnt = blockSize >> 2u;
-
-  /* First part of the processing with loop unrolling.  Compute 4 outputs at a time.    
-   ** a second loop below computes the remaining 1 to 3 samples. */
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Calculate absolute and then store the results in the destination buffer. */
-    /* read sample from source */
-    in1 = *pSrc;
-    in2 = *(pSrc + 1);
-    in3 = *(pSrc + 2);
-
-    /* find absolute value */
-    in1 = fabsf(in1);
-
-    /* read sample from source */
-    in4 = *(pSrc + 3);
-
-    /* find absolute value */
-    in2 = fabsf(in2);
-
-    /* read sample from source */
-    *pDst = in1;
-
-    /* find absolute value */
-    in3 = fabsf(in3);
-
-    /* find absolute value */
-    in4 = fabsf(in4);
-
-    /* store result to destination */
-    *(pDst + 1) = in2;
-
-    /* store result to destination */
-    *(pDst + 2) = in3;
-
-    /* store result to destination */
-    *(pDst + 3) = in4;
-
-
-    /* Update source pointer to process next sampels */
-    pSrc += 4u;
-
-    /* Update destination pointer to process next sampels */
-    pDst += 4u;
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-  /* If the blockSize is not a multiple of 4, compute any remaining output samples here.    
-   ** No loop unrolling is used. */
-  blkCnt = blockSize % 0x4u;
-
-#else
-
-  /* Run the below code for Cortex-M0 */
-
-  /* Initialize blkCnt with number of samples */
-  blkCnt = blockSize;
-
-#endif /*   #ifndef ARM_MATH_CM0   */
-
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Calculate absolute and then store the results in the destination buffer. */
-    *pDst++ = fabsf(*pSrc++);
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-}
-
-/**        
- * @} end of BasicAbs group        
- */

bsp/efm32/Libraries/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_abs_q15.c

-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:		arm_abs_q15.c    
-*    
-* Description:	Q15 vector absolute value.    
-*    
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated.    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**    
- * @ingroup groupMath    
- */
-
-/**    
- * @addtogroup BasicAbs    
- * @{    
- */
-
-/**    
- * @brief Q15 vector absolute value.    
- * @param[in]       *pSrc points to the input buffer    
- * @param[out]      *pDst points to the output buffer    
- * @param[in]       blockSize number of samples in each vector    
- * @return none.    
- *    
- * <b>Scaling and Overflow Behavior:</b>    
- * \par    
- * The function uses saturating arithmetic.    
- * The Q15 value -1 (0x8000) will be saturated to the maximum allowable positive value 0x7FFF.    
- */
-
-void arm_abs_q15(
-  q15_t * pSrc,
-  q15_t * pDst,
-  uint32_t blockSize)
-{
-  uint32_t blkCnt;                               /* loop counter */
-
-#ifndef ARM_MATH_CM0
-
-/* Run the below code for Cortex-M4 and Cortex-M3 */
-
-  q15_t in1;                                     /* Input value1 */
-  q15_t in2;                                     /* Input value2 */
-
-
-  /*loop Unrolling */
-  blkCnt = blockSize >> 2u;
-
-  /* First part of the processing with loop unrolling.  Compute 4 outputs at a time.    
-   ** a second loop below computes the remaining 1 to 3 samples. */
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Read two inputs */
-    in1 = *pSrc++;
-    in2 = *pSrc++;
-
-
-    /* Store the Absolute result in the destination buffer by packing the two values, in a single cycle */
-
-#ifndef  ARM_MATH_BIG_ENDIAN
-
-    *__SIMD32(pDst)++ =
-      __PKHBT(((in1 > 0) ? in1 : __QSUB16(0, in1)),
-              ((in2 > 0) ? in2 : __QSUB16(0, in2)), 16);
-
-#else
-
-
-    *__SIMD32(pDst)++ =
-      __PKHBT(((in2 > 0) ? in2 : __QSUB16(0, in2)),
-              ((in1 > 0) ? in1 : __QSUB16(0, in1)), 16);
-
-#endif /* #ifndef  ARM_MATH_BIG_ENDIAN    */
-
-    in1 = *pSrc++;
-    in2 = *pSrc++;
-
-
-#ifndef  ARM_MATH_BIG_ENDIAN
-
-    *__SIMD32(pDst)++ =
-      __PKHBT(((in1 > 0) ? in1 : __QSUB16(0, in1)),
-              ((in2 > 0) ? in2 : __QSUB16(0, in2)), 16);
-
-#else
-
-
-    *__SIMD32(pDst)++ =
-      __PKHBT(((in2 > 0) ? in2 : __QSUB16(0, in2)),
-              ((in1 > 0) ? in1 : __QSUB16(0, in1)), 16);
-
-#endif /* #ifndef  ARM_MATH_BIG_ENDIAN    */
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-  /* If the blockSize is not a multiple of 4, compute any remaining output samples here.    
-   ** No loop unrolling is used. */
-  blkCnt = blockSize % 0x4u;
-
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Read the input */
-    in1 = *pSrc++;
-
-    /* Calculate absolute value of input and then store the result in the destination buffer. */
-    *pDst++ = (in1 > 0) ? in1 : __QSUB16(0, in1);
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-#else
-
-  /* Run the below code for Cortex-M0 */
-
-  q15_t in;                                      /* Temporary input variable */
-
-  /* Initialize blkCnt with number of samples */
-  blkCnt = blockSize;
-
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Read the input */
-    in = *pSrc++;
-
-    /* Calculate absolute value of input and then store the result in the destination buffer. */
-    *pDst++ = (in > 0) ? in : ((in == (q15_t) 0x8000) ? 0x7fff : -in);
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
-}
-
-/**    
- * @} end of BasicAbs group    
- */

bsp/efm32/Libraries/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_abs_q31.c

-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:		arm_abs_q31.c    
-*    
-* Description:	Q31 vector absolute value.    
-*    
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated.    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**    
- * @ingroup groupMath    
- */
-
-/**    
- * @addtogroup BasicAbs    
- * @{    
- */
-
-
-/**    
- * @brief Q31 vector absolute value.    
- * @param[in]       *pSrc points to the input buffer    
- * @param[out]      *pDst points to the output buffer    
- * @param[in]       blockSize number of samples in each vector    
- * @return none.    
- *    
- * <b>Scaling and Overflow Behavior:</b>    
- * \par    
- * The function uses saturating arithmetic.    
- * The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF.    
- */
-
-void arm_abs_q31(
-  q31_t * pSrc,
-  q31_t * pDst,
-  uint32_t blockSize)
-{
-  uint32_t blkCnt;                               /* loop counter */
-  q31_t in;                                      /* Input value */
-
-#ifndef ARM_MATH_CM0
-
-  /* Run the below code for Cortex-M4 and Cortex-M3 */
-  q31_t in1, in2, in3, in4;
-
-  /*loop Unrolling */
-  blkCnt = blockSize >> 2u;
-
-  /* First part of the processing with loop unrolling.  Compute 4 outputs at a time.    
-   ** a second loop below computes the remaining 1 to 3 samples. */
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and then store the results in the destination buffer. */
-    in1 = *pSrc++;
-    in2 = *pSrc++;
-    in3 = *pSrc++;
-    in4 = *pSrc++;
-
-    *pDst++ = (in1 > 0) ? in1 : __QSUB(0, in1);
-    *pDst++ = (in2 > 0) ? in2 : __QSUB(0, in2);
-    *pDst++ = (in3 > 0) ? in3 : __QSUB(0, in3);
-    *pDst++ = (in4 > 0) ? in4 : __QSUB(0, in4);
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-  /* If the blockSize is not a multiple of 4, compute any remaining output samples here.    
-   ** No loop unrolling is used. */
-  blkCnt = blockSize % 0x4u;
-
-#else
-
-  /* Run the below code for Cortex-M0 */
-
-  /* Initialize blkCnt with number of samples */
-  blkCnt = blockSize;
-
-#endif /*   #ifndef ARM_MATH_CM0   */
-
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Calculate absolute value of the input (if -1 then saturated to 0x7fffffff) and then store the results in the destination buffer. */
-    in = *pSrc++;
-    *pDst++ = (in > 0) ? in : ((in == 0x80000000) ? 0x7fffffff : -in);
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-}
-
-/**    
- * @} end of BasicAbs group    
- */

bsp/efm32/Libraries/CMSIS/DSP_Lib/Source/BasicMathFunctions/arm_abs_q7.c

-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:		arm_abs_q7.c    
-*    
-* Description:	Q7 vector absolute value.    
-*    
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*  
-* Version 1.1.0 2012/02/15 
-*    Updated with more optimizations, bug fixes and minor API changes.  
-*   
-* Version 1.0.10 2011/7/15  
-*    Big Endian support added and Merged M0 and M3/M4 Source code.   
-*    
-* Version 1.0.3 2010/11/29   
-*    Re-organized the CMSIS folders and updated documentation.    
-*     
-* Version 1.0.2 2010/11/11    
-*    Documentation updated.     
-*    
-* Version 1.0.1 2010/10/05     
-*    Production release and review comments incorporated.    
-*    
-* Version 1.0.0 2010/09/20     
-*    Production release and review comments incorporated.    
-*    
-* Version 0.0.7  2010/06/10     
-*    Misra-C changes done    
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**        
- * @ingroup groupMath        
- */
-
-/**        
- * @addtogroup BasicAbs        
- * @{        
- */
-
-/**        
- * @brief Q7 vector absolute value.        
- * @param[in]       *pSrc points to the input buffer        
- * @param[out]      *pDst points to the output buffer        
- * @param[in]       blockSize number of samples in each vector        
- * @return none.        
- *    
- * \par Conditions for optimum performance    
- *  Input and output buffers should be aligned by 32-bit    
- *    
- *        
- * <b>Scaling and Overflow Behavior:</b>        
- * \par        
- * The function uses saturating arithmetic.        
- * The Q7 value -1 (0x80) will be saturated to the maximum allowable positive value 0x7F.        
- */
-
-void arm_abs_q7(
-  q7_t * pSrc,
-  q7_t * pDst,
-  uint32_t blockSize)
-{
-  uint32_t blkCnt;                               /* loop counter */
-  q7_t in;                                       /* Input value1 */
-
-#ifndef ARM_MATH_CM0
-
-  /* Run the below code for Cortex-M4 and Cortex-M3 */
-  q31_t in1, in2, in3, in4;                      /* temporary input variables */
-  q31_t out1, out2, out3, out4;                  /* temporary output variables */
-
-  /*loop Unrolling */
-  blkCnt = blockSize >> 2u;
-
-  /* First part of the processing with loop unrolling.  Compute 4 outputs at a time.    
-   ** a second loop below computes the remaining 1 to 3 samples. */
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Read inputs */
-    in1 = (q31_t) * pSrc;
-    in2 = (q31_t) * (pSrc + 1);
-    in3 = (q31_t) * (pSrc + 2);
-
-    /* find absolute value */
-    out1 = (in1 > 0) ? in1 : __QSUB8(0, in1);
-
-    /* read input */
-    in4 = (q31_t) * (pSrc + 3);
-
-    /* find absolute value */
-    out2 = (in2 > 0) ? in2 : __QSUB8(0, in2);
-
-    /* store result to destination */
-    *pDst = (q7_t) out1;
-
-    /* find absolute value */
-    out3 = (in3 > 0) ? in3 : __QSUB8(0, in3);
-
-    /* find absolute value */
-    out4 = (in4 > 0) ? in4 : __QSUB8(0, in4);
-
-    /* store result to destination */
-    *(pDst + 1) = (q7_t) out2;
-
-    /* store result to destination */
-    *(pDst + 2) = (q7_t) out3;
-
-    /* store result to destination */
-    *(pDst + 3) = (q7_t) out4;
-
-    /* update pointers to process next samples */
-    pSrc += 4u;
-    pDst += 4u;
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-
-  /* If the blockSize is not a multiple of 4, compute any remaining output samples here.    
-   ** No loop unrolling is used. */
-  blkCnt = blockSize % 0x4u;
-#else
-
-  /* Run the below code for Cortex-M0 */
-  blkCnt = blockSize;
-
-#endif //      #define ARM_MATH_CM0
-
-  while(blkCnt > 0u)
-  {
-    /* C = |A| */
-    /* Read the input */
-    in = *pSrc++;
-
-    /* Store the Absolute result in the destination buffer */
-    *pDst++ = (in > 0) ? in : ((in == (q7_t) 0x80) ? 0x7f : -in);
-
-    /* Decrement the loop counter */
-    blkCnt--;
-  }
-}
-
-/**        
- * @} end of BasicAbs group        
- */