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preliminary support for PWM on AT91SAM7X256/AT91SAM7X512
This commit is contained in:
Bogdan Marinescu
parent
7537414c3f
commit
38be9bec88
90
src/platform/at91sam7x/assert.h
Normal file
90
src/platform/at91sam7x/assert.h
Normal file
@ -0,0 +1,90 @@
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/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
|
||||
*
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||||
* - Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the disclaimer below.
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||||
*
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* Atmel's name may not be used to endorse or promote products derived from
|
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* this software without specific prior written permission.
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||||
*
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||||
* 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,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/*
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Title: Assert
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About: Purpose
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Definition of the ASSERT() macro, which is used for runtime condition
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verifying.
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About: Usage
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1 - Use <ASSERT> in your code to check the value of function parameters,
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return values, etc. *Warning:* the ASSERT condition must not have
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any side-effect; otherwise, the program may not work properly
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anymore when assertions are disabled.
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2 - Use SANITY_CHECK to perform checks with a default error message
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(outputs the file and line number where the error occured). This
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reduces memory overhead caused by assertion error strings.
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3 - Initialize the <DBGU> to see failed assertions at run-time.
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4 - Disable assertions by defining the NOASSERT symbol at compilation
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time.
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*/
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#ifndef ASSERT_H
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#define ASSERT_H
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//------------------------------------------------------------------------------
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// Headers
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//------------------------------------------------------------------------------
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#include <stdio.h>
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//------------------------------------------------------------------------------
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// Definitions
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//------------------------------------------------------------------------------
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/*
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Macro: ASSERT
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Check that the given condition is true, otherwise displays an error
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message and stops the program execution.
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Parameters:
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condition - Condition to verify.
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string - Formatted string to output if the condition fails.
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... - Additional arguments depending on the formatted string.
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*/
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#if !defined(NOASSERT) && !defined(NOTRACE)
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//char sanityError[] = "Sanity check failed at %s:%d\n\r";
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#define ASSERT(condition, ...) { \
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if (!(condition)) { \
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printf(__VA_ARGS__); \
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while (1); \
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} \
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}
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#define SANITY_ERROR "Sanity check failed at %s:%d\n\r"
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#define SANITY_CHECK(condition) ASSERT(condition, SANITY_ERROR, __FILE__, __LINE__)
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#else
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#define ASSERT(...)
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#define SANITY_CHECK(...)
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#endif
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#endif //#ifndef ASSERT_H
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@ -2,7 +2,7 @@
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cpumode = ARGUMENTS.get( 'cpumode', 'thumb' ).lower()
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specific_files = "board_cstartup.s board_lowlevel.c board_memories.c usart.c pmc.c pio.c platform.c tc.c"
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specific_files = "board_cstartup.s board_lowlevel.c board_memories.c usart.c pmc.c pio.c platform.c tc.c pwmc.c"
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if cputype == 'at91sam7x256':
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ldscript = "flash256.lds"
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elif cputype == 'at91sam7x512':
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@ -20,6 +20,8 @@ else:
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print "Invalid CPU mode %s", cpumode
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sys.exit( -1 )
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cdefs = cdefs + ' -DNOASSERT -DNOTRACE'
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# Prepend with path
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specific_files = " ".join( [ "src/platform/%s/%s" % ( platform, f ) for f in specific_files.split() ] )
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ldscript = "src/platform/%s/%s" % ( platform, ldscript )
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@ -9,6 +9,8 @@
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#include "genstd.h"
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#include "tc.h"
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#include "stacks.h"
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#include "pwmc.h"
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#include "board.h"
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#include <reent.h>
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#include <errno.h>
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#include <string.h>
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@ -49,14 +51,15 @@ int platform_init()
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AT91C_US_PAR_NONE | AT91C_US_NBSTOP_1_BIT | AT91C_US_CHMODE_NORMAL;
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// Enable the peripherals we use in the PMC
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PMC_EnablePeripheral(AT91C_ID_US0);
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PMC_EnablePeripheral(AT91C_ID_US1);
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PMC_EnablePeripheral(AT91C_ID_PIOA);
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PMC_EnablePeripheral(AT91C_ID_PIOB);
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PMC_EnablePeripheral(AT91C_ID_TC0);
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PMC_EnablePeripheral(AT91C_ID_TC1);
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PMC_EnablePeripheral(AT91C_ID_TC2);
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PMC_EnablePeripheral( AT91C_ID_US0 );
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PMC_EnablePeripheral( AT91C_ID_US1 );
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PMC_EnablePeripheral( AT91C_ID_PIOA );
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PMC_EnablePeripheral( AT91C_ID_PIOB );
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PMC_EnablePeripheral( AT91C_ID_TC0 );
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PMC_EnablePeripheral( AT91C_ID_TC1 );
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PMC_EnablePeripheral( AT91C_ID_TC2 );
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PMC_EnablePeripheral( AT91C_ID_PWMC );
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// Configure pins
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PIO_Configure(platform_uart_pins[ 0 ], PIO_LISTSIZE(platform_uart_pins[ 0 ]));
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@ -71,6 +74,13 @@ int platform_init()
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AT91C_BASE_TCB->TCB_BMR = 7;
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for( i = 0; i < 3; i ++ )
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TC_Configure( ( AT91S_TC* )timer_base[ i ], AT91C_TC_CLKS_TIMER_DIV5_CLOCK | AT91C_TC_WAVE );
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// PWM setup (only the clocks are set at this point)
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PWMC_ConfigureClocks( BOARD_MCK, BOARD_MCK, BOARD_MCK );
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PWMC_ConfigureChannel( 0, AT91C_PWMC_CPRE_MCKA, 0, 0 );
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PWMC_ConfigureChannel( 1, AT91C_PWMC_CPRE_MCKA, 0, 0 );
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PWMC_ConfigureChannel( 2, AT91C_PWMC_CPRE_MCKB, 0, 0 );
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PWMC_ConfigureChannel( 3, AT91C_PWMC_CPRE_MCKB, 0, 0 );
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// Set the send/recv functions
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std_set_send_func( uart_send );
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@ -257,6 +267,7 @@ int platform_uart_recv( unsigned id, unsigned timer_id, int timeout )
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// ****************************************************************************
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// Timer functions
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static const unsigned clkdivs[] = { 2, 8, 32, 128, 1024 };
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// Helper: get timer clock
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@ -355,6 +366,95 @@ u32 platform_timer_get_diff_us( unsigned id, timer_data_type end, timer_data_typ
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return ( ( u64 )( start - end ) * 1000000 ) / freq;
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}
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// ****************************************************************************
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// PWMs
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// PWM0, PWM1 -> they can modify CLKA and are statically assigned to CLKA
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// PWM2, PWM3 -> they can modify CLKB and are statically assigned to CLKB
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#define PLATFORM_NUM_PWMS 4
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// PWM pins
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static const Pin pwm_pins[] = { PIN_PWMC_PWM0, PIN_PWMC_PWM1, PIN_PWMC_PWM2, PIN_PWMC_PWM3 };
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// Helper function: return the PWM clock
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static u32 platform_pwm_get_clock( unsigned id )
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{
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u32 cfg = AT91C_BASE_PWMC->PWMC_CH[ id ].PWMC_CMR;
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u16 clkdata;
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clkdata = cfg & 0x0F;
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if( clkdata < 11 )
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return BOARD_MCK / ( 1 << clkdata );
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else
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{
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// clka / clkb
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cfg = AT91C_BASE_PWMC->PWMC_MR;
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if( clkdata == 12 ) // clkb
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cfg >>= 16;
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clkdata = cfg & 0x0FFF;
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return BOARD_MCK / ( ( clkdata & 0xFF ) * ( 1 << ( clkdata >> 8 ) ) );
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}
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}
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// Helper function: set the PWM clock
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static u32 platform_pwm_set_clock( unsigned id, u32 clock )
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{
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if( id < 2 )
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PWMC_ConfigureClocks( clock, 0, BOARD_MCK );
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else
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PWMC_ConfigureClocks( 0, clock, BOARD_MCK );
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return platform_pwm_get_clock( id );
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}
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int platform_pwm_exists( unsigned id )
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{
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return id < PLATFORM_NUM_PWMS;
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}
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u32 platform_pwm_setup( unsigned id, u32 frequency, unsigned duty )
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{
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u32 pwmclk = platform_pwm_get_clock( id );
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u32 period;
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// Compute period
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period = pwmclk / frequency;
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// Set the period
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PWMC_SetPeriod( id, period );
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// Set duty cycle
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PWMC_SetDutyCycle( id, ( period * duty ) / 100 );
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// Return actual frequency
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return pwmclk / period;
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}
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u32 platform_pwm_op( unsigned id, int op, u32 data )
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{
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u32 res = 0;
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switch( op )
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{
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case PLATFORM_PWM_OP_SET_CLOCK:
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res = platform_pwm_set_clock( id, data );
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break;
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case PLATFORM_PWM_OP_GET_CLOCK:
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res = platform_pwm_get_clock( id );
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break;
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case PLATFORM_PWM_OP_START:
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PIO_Configure( pwm_pins + id, 1 );
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PWMC_EnableChannel( id );
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break;
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case PLATFORM_PWM_OP_STOP:
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PWMC_DisableChannel( id );
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platform_pio_op( 1, 1 << ( 19 + id ), PLATFORM_IO_PIN_DIR_INPUT );
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break;
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}
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return res;
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}
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// ****************************************************************************
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// Platform data functions
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@ -10,6 +10,8 @@
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{ AUXLIB_TMR, luaopen_tmr },\
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{ AUXLIB_PD, luaopen_pd },\
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{ AUXLIB_UART, luaopen_uart },\
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{ AUXLIB_TERM, luaopen_term }
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{ AUXLIB_TERM, luaopen_term },\
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{ AUXLIB_PWM, luaopen_pwm },\
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{ AUXLIB_PACK, luaopen_pack }
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#endif
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239
src/platform/at91sam7x/pwmc.c
Normal file
239
src/platform/at91sam7x/pwmc.c
Normal file
@ -0,0 +1,239 @@
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/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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* 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.
|
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* ----------------------------------------------------------------------------
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*/
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//------------------------------------------------------------------------------
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// Headers
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//------------------------------------------------------------------------------
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#include "pwmc.h"
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#include "board.h"
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#include "assert.h"
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#include "trace.h"
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//------------------------------------------------------------------------------
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// Local functions
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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/// Finds a prescaler/divisor couple to generate the desired frequency from
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/// MCK.
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/// Returns the value to enter in PWMC_MR or 0 if the configuration cannot be
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/// met.
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/// \param frequency Desired frequency in Hz.
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/// \param mck Master clock frequency in Hz.
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//------------------------------------------------------------------------------
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static unsigned short FindClockConfiguration(
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unsigned int frequency,
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unsigned int mck)
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{
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unsigned int divisors[11] = {1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024};
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unsigned char divisor = 0;
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unsigned int prescaler;
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SANITY_CHECK(frequency < mck);
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// Find prescaler and divisor values
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prescaler = (mck / divisors[divisor]) / frequency;
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while ((prescaler > 255) && (divisor < 11)) {
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divisor++;
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prescaler = (mck / divisors[divisor]) / frequency;
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}
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// Return result
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if (divisor < 11) {
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trace_LOG(trace_DEBUG, "-D- Found divisor=%u and prescaler=%u for freq=%uHz\n\r",
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divisors[divisor], prescaler, frequency);
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return prescaler | (divisor << 8);
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}
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else {
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return 0;
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}
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}
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//------------------------------------------------------------------------------
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// Global functions
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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/// Configures PWM a channel with the given parameters.
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/// The PWM controller must have been clocked in the PMC prior to calling this
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/// function.
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/// \param channel Channel number.
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/// \param prescaler Channel prescaler.
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/// \param alignment Channel alignment.
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/// \param polarity Channel polarity.
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//------------------------------------------------------------------------------
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void PWMC_ConfigureChannel(
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unsigned char channel,
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unsigned int prescaler,
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unsigned int alignment,
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unsigned int polarity)
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{
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SANITY_CHECK(prescaler < AT91C_PWMC_CPRE_MCKB);
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SANITY_CHECK((alignment & ~AT91C_PWMC_CALG) == 0);
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SANITY_CHECK((polarity & ~AT91C_PWMC_CPOL) == 0);
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// Disable channel
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AT91C_BASE_PWMC->PWMC_DIS = 1 << channel;
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// Configure channel
|
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AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CMR = prescaler | alignment | polarity;
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}
|
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|
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//------------------------------------------------------------------------------
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/// Configures PWM clocks A & B to run at the given frequencies. This function
|
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/// finds the best MCK divisor and prescaler values automatically.
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/// \param clka Desired clock A frequency (0 if not used).
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/// \param clkb Desired clock B frequency (0 if not used).
|
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/// \param mck Master clock frequency.
|
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//------------------------------------------------------------------------------
|
||||
void PWMC_ConfigureClocks(unsigned int clka, unsigned int clkb, unsigned int mck)
|
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{
|
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unsigned int mode;
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unsigned int result;
|
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|
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// Clock A
|
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mode = AT91C_BASE_PWMC->PWMC_MR;
|
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if (clka != 0) {
|
||||
|
||||
result = FindClockConfiguration(clka, mck);
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ASSERT(result != 0, "-F- Could not generate the desired PWM frequency (%uHz)\n\r", clka);
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mode = ( mode & ~0xFFFF ) | result;
|
||||
}
|
||||
|
||||
// Clock B
|
||||
if (clkb != 0) {
|
||||
|
||||
result = FindClockConfiguration(clkb, mck);
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||||
ASSERT(result != 0, "-F- Could not generate the desired PWM frequency (%uHz)\n\r", clkb);
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||||
mode = ( mode & ~0xFFFF0000 ) | ( result << 16 );
|
||||
}
|
||||
|
||||
// Configure clocks
|
||||
trace_LOG(trace_DEBUG, "-D- Setting PWMC_MR = 0x%08X\n\r", mode);
|
||||
AT91C_BASE_PWMC->PWMC_MR = mode;
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}
|
||||
|
||||
//------------------------------------------------------------------------------
|
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/// Sets the period value used by a PWM channel. This function writes directly
|
||||
/// to the CPRD register if the channel is disabled; otherwise, it uses the
|
||||
/// update register CUPD.
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||||
/// \param channel Channel number.
|
||||
/// \param period Period value.
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||||
//------------------------------------------------------------------------------
|
||||
void PWMC_SetPeriod(unsigned char channel, unsigned short period)
|
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{
|
||||
// If channel is disabled, write to CPRD
|
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if ((AT91C_BASE_PWMC->PWMC_SR & (1 << channel)) == 0) {
|
||||
|
||||
AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CPRDR = period;
|
||||
}
|
||||
// Otherwise use update register
|
||||
else {
|
||||
|
||||
AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CMR |= AT91C_PWMC_CPD;
|
||||
AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CUPDR = period;
|
||||
}
|
||||
}
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
/// Sets the duty cycle used by a PWM channel. This function writes directly to
|
||||
/// the CDTY register if the channel is disabled; otherwise it uses the
|
||||
/// update register CUPD.
|
||||
/// Note that the duty cycle must always be inferior or equal to the channel
|
||||
/// period.
|
||||
/// \param channel Channel number.
|
||||
/// \param duty Duty cycle value.
|
||||
//------------------------------------------------------------------------------
|
||||
void PWMC_SetDutyCycle(unsigned char channel, unsigned short duty)
|
||||
{
|
||||
SANITY_CHECK(duty <= AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CPRDR);
|
||||
|
||||
// SAM7S errata
|
||||
#if defined(at91sam7s16) || defined(at91sam7s161) || defined(at91sam7s32) \
|
||||
|| defined(at91sam7s321) || defined(at91sam7s64) || defined(at91sam7s128) \
|
||||
|| defined(at91sam7s256) || defined(at91sam7s512)
|
||||
ASSERT(duty > 0, "-F- Duty cycle value 0 is not permitted on SAM7S chips.\n\r");
|
||||
ASSERT((duty > 1) || (AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CMR & AT91C_PWMC_CALG),
|
||||
"-F- Duty cycle value 1 is not permitted in left-aligned mode on SAM7S chips.\n\r");
|
||||
#endif
|
||||
|
||||
// If channel is disabled, write to CDTY
|
||||
if ((AT91C_BASE_PWMC->PWMC_SR & (1 << channel)) == 0) {
|
||||
|
||||
AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CDTYR = duty;
|
||||
}
|
||||
// Otherwise use update register
|
||||
else {
|
||||
|
||||
AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CMR &= ~AT91C_PWMC_CPD;
|
||||
AT91C_BASE_PWMC->PWMC_CH[channel].PWMC_CUPDR = duty;
|
||||
}
|
||||
}
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
/// Enables the given PWM channel. This does NOT enable the corresponding pin;
|
||||
/// this must be done in the user code.
|
||||
/// \param channel Channel number.
|
||||
//------------------------------------------------------------------------------
|
||||
void PWMC_EnableChannel(unsigned char channel)
|
||||
{
|
||||
AT91C_BASE_PWMC->PWMC_ENA = 1 << channel;
|
||||
}
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
/// Disables the given PWM channel.
|
||||
/// \param channel Channel number.
|
||||
//------------------------------------------------------------------------------
|
||||
void PWMC_DisableChannel(unsigned char channel)
|
||||
{
|
||||
AT91C_BASE_PWMC->PWMC_DIS = 1 << channel;
|
||||
}
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
/// Enables the period interrupt for the given PWM channel.
|
||||
/// \param channel Channel number.
|
||||
//------------------------------------------------------------------------------
|
||||
void PWMC_EnableChannelIt(unsigned char channel)
|
||||
{
|
||||
AT91C_BASE_PWMC->PWMC_IER = 1 << channel;
|
||||
}
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
/// Disables the period interrupt for the given PWM channel.
|
||||
/// \param channel Channel number.
|
||||
//------------------------------------------------------------------------------
|
||||
void PWMC_DisableChannelIt(unsigned char channel)
|
||||
{
|
||||
AT91C_BASE_PWMC->PWMC_IDR = 1 << channel;
|
||||
}
|
||||
|
||||
61
src/platform/at91sam7x/pwmc.h
Normal file
61
src/platform/at91sam7x/pwmc.h
Normal file
@ -0,0 +1,61 @@
|
||||
/* ----------------------------------------------------------------------------
|
||||
* 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.
|
||||
* ----------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef PWMC_H
|
||||
#define PWMC_H
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
// Global functions
|
||||
//------------------------------------------------------------------------------
|
||||
|
||||
extern void PWMC_ConfigureChannel(
|
||||
unsigned char channel,
|
||||
unsigned int prescaler,
|
||||
unsigned int alignment,
|
||||
unsigned int polarity);
|
||||
|
||||
extern void PWMC_ConfigureClocks
|
||||
(unsigned int clka,
|
||||
unsigned int clkb,
|
||||
unsigned int mck);
|
||||
|
||||
extern void PWMC_SetPeriod(unsigned char channel, unsigned short period);
|
||||
|
||||
extern void PWMC_SetDutyCycle(unsigned char channel, unsigned short duty);
|
||||
|
||||
extern void PWMC_EnableChannel(unsigned char channel);
|
||||
|
||||
extern void PWMC_DisableChannel(unsigned char channel);
|
||||
|
||||
extern void PWMC_EnableChannelIt(unsigned char channel);
|
||||
|
||||
extern void PWMC_DisableChannelIt(unsigned char channel);
|
||||
|
||||
#endif //#ifndef PWMC_H
|
||||
|
||||
134
src/platform/at91sam7x/trace.h
Normal file
134
src/platform/at91sam7x/trace.h
Normal file
@ -0,0 +1,134 @@
|
||||
/* ----------------------------------------------------------------------------
|
||||
* 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.
|
||||
* ----------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
/*
|
||||
Title: Trace
|
||||
|
||||
About: Purpose
|
||||
Standard output methods for reporting debug information, warnings and
|
||||
errors, which can be turned on/off.
|
||||
|
||||
About: Usage
|
||||
1 - Initialize the DBGU using <trace_CONFIGURE>.
|
||||
2 - Uses the <trace_LOG> macro to output traces throughout the program.
|
||||
3 - Turn off all traces by defining the NOTRACE symbol during
|
||||
compilation.
|
||||
4 - Disable a group of trace by changing the value of <trace_LEVEL>
|
||||
during compilation; traces with a level below <trace_LEVEL> are not
|
||||
generated.
|
||||
*/
|
||||
|
||||
#ifndef TRACE_H
|
||||
#define TRACE_H
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
// Headers
|
||||
//------------------------------------------------------------------------------
|
||||
|
||||
#if !defined(NOTRACE)
|
||||
#include <board.h>
|
||||
#include <dbgu/dbgu.h>
|
||||
#include <pio/pio.h>
|
||||
#include <stdio.h>
|
||||
#endif
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
// Definitions
|
||||
//------------------------------------------------------------------------------
|
||||
/*
|
||||
Constants: Trace levels
|
||||
trace_FATAL - Indicates a major error which prevents the program from
|
||||
going any further.
|
||||
trace_ERROR - Indicates an error which may not stop the program
|
||||
execution, but which indicates there is a problem with the code.
|
||||
trace_WARNING - Indicates that a minor error has happened. In most case
|
||||
it can be discarded safely; it may even be expected.
|
||||
trace_INFO - Informational trace about the program execution. Should
|
||||
enable the user to see the execution flow.
|
||||
trace_DEBUG - Traces whose only purpose is for debugging the program,
|
||||
and which do not produce meaningful information otherwise.
|
||||
*/
|
||||
#define trace_DEBUG 0
|
||||
#define trace_INFO 1
|
||||
#define trace_WARNING 2
|
||||
#define trace_ERROR 3
|
||||
#define trace_FATAL 4
|
||||
|
||||
/*
|
||||
Constant: trace_LEVEL
|
||||
Minimum level of traces that are output. By default, all traces are
|
||||
output; change the value of this symbol during compilation for a more
|
||||
restrictive behavior.
|
||||
*/
|
||||
#if !defined(trace_LEVEL)
|
||||
#define trace_LEVEL 0
|
||||
#endif
|
||||
|
||||
/*
|
||||
Macro: trace_CONFIGURE
|
||||
Initializes the DBGU unless the NOTRACE symbol has been defined.
|
||||
|
||||
Parameters:
|
||||
mode - DBGU mode.
|
||||
baudrate - DBGU baudrate.
|
||||
mck - Master clock frequency.
|
||||
*/
|
||||
#if !defined(NOTRACE)
|
||||
#define trace_CONFIGURE(mode, baudrate, mck) { \
|
||||
const Pin pinsDbgu[] = {PINS_DBGU}; \
|
||||
PIO_Configure(pinsDbgu, PIO_LISTSIZE(pinsDbgu)); \
|
||||
DBGU_Configure(mode, baudrate, mck); \
|
||||
}
|
||||
#else
|
||||
#define trace_CONFIGURE(...)
|
||||
#endif
|
||||
|
||||
/*
|
||||
Macro: trace_LOG
|
||||
Outputs a formatted string using <printf> if the log level is high
|
||||
enough. Can be disabled by defining the NOTRACE symbol during
|
||||
compilation.
|
||||
|
||||
Parameters:
|
||||
level - Trace level (see <Trace levels>).
|
||||
format - Formatted string to output.
|
||||
... - Additional parameters, depending on the formatted string.
|
||||
*/
|
||||
#if !defined(NOTRACE)
|
||||
#define trace_LOG(level, ...) { \
|
||||
if (level >= trace_LEVEL) { \
|
||||
printf(__VA_ARGS__); \
|
||||
} \
|
||||
}
|
||||
#else
|
||||
#define trace_LOG(...)
|
||||
#endif
|
||||
|
||||
#endif //#ifndef TRACE_H
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user