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Merge pull request #16257 from fjmolinas/pr_arduino_due_config_freq

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boards/arduino-due: allow changing frequency
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Marian Buschsieweke 2021-03-30 16:17:43 +02:00 committed by GitHub
commit 8919b2c847
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2 changed files with 8 additions and 1 deletions
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2
boards/common/arduino-due/include/periph_conf.h
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@ -76,7 +76,9 @@ static const timer_conf_t timer_config[] = {
* @name RTT configuration
* @{
*/
#ifndef RTT_FREQUENCY
#define RTT_FREQUENCY (1U) /* 1Hz */
#endif
/** @} */
/**

7
cpu/sam3/include/periph_cpu.h
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@ -76,9 +76,14 @@ typedef uint32_t gpio_t;
#define TIMER_CHANNEL_NUMOF (1)
/**
* @brief The RTT width is fixed to 32-bit
* @name RTT configuration
* @{
*/
#define RTT_MAX_VALUE (0xffffffff)
#define RTT_CLOCK_FREQUENCY (CHIP_FREQ_XTAL_32K) /* in Hz */
#define RTT_MIN_FREQUENCY (1) /* in Hz */
#define RTT_MAX_FREQUENCY (RTT_CLOCK_FREQUENCY) /* in Hz */
/** @} */
/**
* @brief Generate GPIO mode bitfields