Projekte angelegt

simulation/lpdsp32_init.s

@@ -0,0 +1,46 @@
+/* ----------------------------------------------------------------------------
+ * Copyright (c) 2017 Semiconductor Components Industries, LLC (d/b/a
+ * ON Semiconductor), All Rights Reserved
+ *
+ * This code is the property of ON Semiconductor and may not be redistributed
+ * in any form without prior written permission from ON Semiconductor.
+ * The terms of use and warranty for this code are covered by contractual
+ * agreements between ON Semiconductor and the licensee.
+ *
+ * This is Reusable Code.
+ *
+ * -----------------------------------------------------------------------------
+ */
+
+// initialisation before entering the main function.
+.text global 0 _main_init
+      r = 1          // enable rounding
+      s = 1          // enable saturation
+      sp = _sp_start_value_DMA // init SP (adjusted to stack in lpdsp.bcf)	
+      ie = 1  ; nop  // enable interrupts
+
+// area to load main() arguments 
+.bss global 0 _main_argv_area DMA 256
+
+.undef global text isr0
+
+// the interrupt vector table with 15 interrupts
+.text global 0 _ivt
+	jp _main_init    // 0  - reset
+	reti ; nop       // 2  - interrupt 1 - dma 0 iterrupt
+	reti ; nop       // 4  - interrupt 2
+	reti ; nop       // 6  - interrupt 3
+	reti ; nop       // 8  - interrupt 4
+	jp isr0          // 10 - interrupt 5 - dma 4 iterrupt -pcm rx
+	reti ; nop       // 12 - interrupt 6 - dma 5 iterrupt -pcm tx
+	reti ; nop       // 14 - interrupt 7
+	reti ; nop       // 16 - interrupt 8
+	reti ; nop       // 18 - interrupt 9 cm3 interrupt 0
+	reti ; nop       // 20 - interupt 10 cm3 interrupt 1
+	reti ; nop       // 22 - interrupt 11
+	reti ; nop       // 24 - interrupt 12
+	reti ; nop       // 26 - interrupt 13
+	reti ; nop       // 28 - interrupt 14
+	reti ; nop       // 30 - interrupt 15
+
+