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/*
* This source code form is a part of the ChibiOS/GFX project and stands
* under the terms of the GFX License v1.0. If a copy of the license
* was not distributed with this file, You can obtain one at:
*
* http://chibios-gfx.com/license.html
*
*/
/**
* @file drivers/gadc/AT91SAM7/gadc_lld_config.h
* @brief GADC Driver config file.
*
* @addtogroup GADC
* @{
*/
#ifndef GADC_LLD_CONFIG_H
#define GADC_LLD_CONFIG_H
#if GFX_USE_GADC
/*===========================================================================*/
/* Driver hardware support. */
/*===========================================================================*/
/**
* @brief ChibiOS has a nasty bug in its _adc_isr_full_code() routine (defined in adc.h as a macro).
* Do we have the version of ChibiOS with this bug.
* @detail Set to TRUE if ChibiOS has this bug.
* @note Fixed in ChibiOS 2.4.4stable and 2.5.2unstable (and the repository from 18th Feb 2013)
* @note This bug prevents us re-calling adcStartConversionI() from with the ISR even though
* it is clearly designed to handle it. For some reason (on this micro) the high speed timer
* is not affected only the single sample low speed timer. In that situation we wait until
* we get back to thread land. This is terrible for the accuracy of the high speed timer
* but what can we do (other than fix the bug).
* @note For the AT91SAM7 ADC driver, it post-dates the finding of the bug so we safely
* say that the bug doesn't exist for this driver.
*/
#define ADC_ISR_FULL_CODE_BUG FALSE
/**
* @brief The maximum sample frequency supported by this CPU
*/
#define GADC_MAX_SAMPLE_FREQUENCY 132000
/**
* @brief The number of bits in a sample
*/
#define GADC_BITS_PER_SAMPLE AT91_ADC1_RESOLUTION
/**
* @brief The sample format
*/
#define GADC_SAMPLE_FORMAT ARRAY_DATA_10BITUNSIGNED
/* Pull in board specific defines */
#if defined(GADC_USE_CUSTOM_BOARD) && GADC_USE_CUSTOM_BOARD
/* Include the user supplied board definitions */
#include "gadc_lld_board.h"
#elif defined(BOARD_OLIMEX_SAM7_EX256)
#include "gadc_lld_board_olimexsam7ex256.h"
#else
/* Include the user supplied board definitions */
#include "gadc_lld_board.h"
#endif
#endif /* GFX_USE_GADC */
#endif /* GADC_LLD_CONFIG_H */
/** @} */
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