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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ColdFire_MCF52259_CodeWarrior/] [cpu/] [mcf5225x.c] - Rev 594
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/* * File: mcf52xx.c * Purpose: Source to select CF derivative * * Notes: * * License: All software covered by license agreement in - * docs/Freescale_Software_License.pdf */ /********************************************************************/ #include "common.h" /********************************************************************/ /* * Pause for the specified number of micro-seconds. * Uses DTIM3 as a timer */ void cpu_pause(int usecs) { /* Enable the DMA Timer 3 */ MCF_DTIM3_DTRR = (vuint32)(usecs - 1); MCF_DTIM3_DTER = MCF_DTIM_DTER_REF; MCF_DTIM3_DTMR = 0 | MCF_DTIM_DTMR_PS(SYSTEM_CLOCK) | MCF_DTIM_DTMR_FRR | MCF_DTIM_DTMR_CLK_DIV1 | MCF_DTIM_DTMR_RST; while ((MCF_DTIM3_DTER & MCF_DTIM_DTER_REF) == 0) {}; /* Disable the timer */ MCF_DTIM3_DTMR = 0; } /********************************************************************/ void board_handle_interrupt (int vector) { switch (vector) { case 65: /* Eport Interrupt 1 */ printf("SW2\n"); MCF_EPORT_EPFR = MCF_EPORT_EPFR_EPF1; break; case 69: /* Eport Interrupt 5 */ printf("SW1\n"); MCF_EPORT_EPFR = MCF_EPORT_EPFR_EPF5; break; case 71: /* Eport Interrupt 7 */ printf("ABORT\n"); MCF_EPORT_EPFR = MCF_EPORT_EPFR_EPF7; break; case 66: /* Eport Interrupt 2 */ case 67: /* Eport Interrupt 3 */ case 68: /* Eport Interrupt 4 */ case 70: /* Eport Interrupt 6 */ default: MCF_EPORT_EPFR = (uint8)(0x01 << (vector - 64)); printf("Edge Port Interrupt #%d\n",vector - 64); break; } } /********************************************************************/ /********************************************************************/ void cpu_handle_interrupt (int vector) { if (vector < 64 || vector > 192) return; if (vector >= 64 && vector <= 71) board_handle_interrupt(vector); else printf("User Defined Vector #%d\n",vector); } /********************************************************************/
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