ATMEL SAM4E Series Device Support and CMSIS 5, fix for AFEC and exception table

library.patch

--- a/ic.sam4e/gcc/gcc/startup_sam4e.c
+++ b/ic.sam4e/gcc/gcc/startup_sam4e.c
@@ -135,6 +136,7 @@ const DeviceVectors exception_table = {
         (void*) PMC_Handler,    /* 5  Power Management Controller */
         (void*) EFC_Handler,    /* 6  Enhanced Embedded Flash Controller */
         (void*) UART0_Handler,  /* 7  UART 0 */
+        (void*) Dummy_Handler,  /* 8  Dummy */
         (void*) PIOA_Handler,   /* 9  Parallel I/O Controller A */
         (void*) PIOB_Handler,   /* 10 Parallel I/O Controller B */
         (void*) PIOC_Handler,   /* 11 Parallel I/O Controller C */
@@ -166,6 +168,10 @@ const DeviceVectors exception_table = {
         (void*) CAN0_Handler,   /* 37 CAN0 */
         (void*) CAN1_Handler,   /* 38 CAN1 */
         (void*) AES_Handler,    /* 39 AES */
+        (void*) Dummy_Handler,  /* 40 Dummy */
+        (void*) Dummy_Handler,  /* 41 Dummy */
+        (void*) Dummy_Handler,  /* 42 Dummy */
+        (void*) Dummy_Handler,  /* 43 Dummy */
         (void*) GMAC_Handler,   /* 44 EMAC */
         (void*) UART1_Handler   /* 45 UART */
 };

--- a/ic.sam4e/include/component/afec.h
+++ b/ic.sam4e/include/component/afec.h
@@ -59,9 +59,9 @@ typedef struct {
   RoReg Reserved2[1];
   RwReg AFE_CDOR;      /**< \brief (Afec Offset: 0x5C) Channel DC Offset Register */
   RwReg AFE_DIFFR;     /**< \brief (Afec Offset: 0x60) Channel Differential Register */
-  RoReg AFE_CSELR;     /**< \brief (Afec Offset: 0x64) Channel Register Selection */
+  RwReg AFE_CSELR;     /**< \brief (Afec Offset: 0x64) Channel Register Selection */
   RoReg AFE_CDR;       /**< \brief (Afec Offset: 0x68) Channel Data Register */
-  RoReg AFE_COCR;      /**< \brief (Afec Offset: 0x6C) Channel Offset Compensation Register */
+  RwReg AFE_COCR;      /**< \brief (Afec Offset: 0x6C) Channel Offset Compensation Register */
   RwReg AFE_TEMPMR;    /**< \brief (Afec Offset: 0x70) Temperature Sensor Mode Register */
   RwReg AFE_TEMPCWR;   /**< \brief (Afec Offset: 0x74) Temperature Compare Window Register */
   RoReg Reserved3[7];

Without the Dummy_Handler entries in the exception table my SAM4E board would not boot (possibly because the table is out of alignment and the jumps to anything after the UART0_Handler will end up with the wrong handler.

AFE_CSELR and AFE_COCR are described as Read/Write in the SAM4e8e datasheet, but marked as Read-Only in the latest version of the device support package. This makes it impossible to write AFE_CSELR to select a channel to read data from and impossible to write AFE_COCR to set a channel offset.

Hope this helps someone struggling with the same issues.

Thanks!