48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/* ADC Peripheral.c
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Copyright (C) 2010 Carlos Camargo cicamargoba@unal.edu.co
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Andres Calderon andres.calderon@emqbit.com
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <stdio.h>
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#include <unistd.h>
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#include "jz_adc_peripheral.h"
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JZ_REG *
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jz_adc_init()
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{
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JZ_PIO *pio;
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JZ_REG *virt_addr;
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pio = jz_gpio_map (CS2_PORT);
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jz_gpio_as_func (pio, CS2_PIN, 0);
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virt_addr = (JZ_REG *) (jz_mmap(0x13010000) + 0x18);
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if (*virt_addr != 0x0FFF7700)
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{
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*virt_addr = 0x0FFF7700;
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printf ("ADC: Configuring CS2 8 bits and 0 WS: %08X\n", *virt_addr);
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}
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else
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printf ("ADC: CS2, already configured: %08X\n", *virt_addr);
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virt_addr = (JZ_REG *) jz_mmap (0x14000000);
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return virt_addr;
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}
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