at91sam9g20-ek-sram.ini
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- // ----------------------------------------------------------------------------
- // ATMEL Microcontroller Software Support
- // ----------------------------------------------------------------------------
- // Copyright (c) 2008, Atmel Corporation
- //
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are met:
- //
- // - Redistributions of source code must retain the above copyright notice,
- // this list of conditions and the disclaimer below.
- //
- // Atmel's name may not be used to endorse or promote products derived from
- // this software without specific prior written permission.
- //
- // DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
- // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
- // DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
- // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- // OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- // EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- // ----------------------------------------------------------------------------
- //----------------------------------------------------------------------------
- // File Name : at91sam9260-ek-sdram.ini
- // Object : Generic Macro File for KEIL
- //----------------------------------------------------------------------------
- //----------------------------------------------------------------------------
- // MapRamAt0()
- // Function description: Maps RAM at 0.
- //----------------------------------------------------------------------------
- FUNC void MapRamAt0(){
-
- printf ("Changing mapping: RAM mapped to 0 n");
- _WDWORD(0xFFFFEF00,0x03);
- }
- //----------------------------------------------------------------------------
- // InitRSTC()
- // Function description
- // Initializes the RSTC (Reset controller).
- // This makes sense since the default is to not allow user resets, which makes it impossible to
- // apply a second RESET via J-Link
- //----------------------------------------------------------------------------
- FUNC void InitRSTC() {
- _WDWORD(0xA5000001,0xFFFFFD08); // Allow user reset
- }
- //------------------------------------------------------------------------------
- // Configures the master clock at the best possible frequency.
- //------------------------------------------------------------------------------
- FUNC void ConfigureMck()
- {
- __message "------------------------------- PLL @133MHz ----------------------------------";
- // If clock is already configured, reset settings
- if ((__readMemory32(0xFFFFFC30") & 0x3) != 0) {
- // Disable interrupts and clocks
- _WDWORD(0xFFFFFC64,0xFFFFFFFF); // PMC_IDR
- _WDWORD(0xFFFFFC14,0xFFFFFFFF); // PMC_PCDR
- _WDWORD(0xFFFFFC04,0xFFFFFFFE); // PMC_SCDR
- // Switch to main oscillator
- _WDWORD(0xFFFFFC30,0x00000001); // PMC_MCKR
- _sleep_(10);
- // Set default PLL settings
- _WDWORD(0xFFFFFC28, 0x00003F00); // PMC_PLLAR
- _WDWORD(0xFFFFFC2C,0x00003F00); // PMC_PLLBR
- _sleep_(10);
- }
- // Enable mainosc
- _WDWORD(0xFFFFFC20,0x00004001);
- _sleep_(10);
- // Switch to mainosc
- _WDWORD(0xFFFFFC30,0x00000001);
- _sleep_(10);
- // Configure PLLA
- _WDWORD(0xFFFFFC28,0x202A0101);
- _sleep_(10);
- // Switch to PLLA
- _WDWORD(0xFFFFFC30,0x00001302);
- _sleep_(10);
- }
- // Remap
- MapRamAt0();
- // Configure clock
- ConfigureMck();
- // Enable user reset
- InitRSTC();
- LOAD at91sam9g20-sram\at91sam9g20-sram.axf INCREMENTAL
- PC = 0x200000;
- g,main