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| author | Kevin O'Connor <kevin@koconnor.net> | 2019-01-18 18:52:44 -0500 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2019-01-28 20:02:16 -0500 |
| commit | c5fc264a075b5458cb68ffff5bced2a9d5ba8385 (patch) | |
| tree | d6a94c88d47f7eeecc3211f13771b27af31d9f87 /src/atsamd/serial.c | |
| parent | 8f763d80b7c46d467050a5c7696749a23beaf0b0 (diff) | |
| download | kutter-c5fc264a075b5458cb68ffff5bced2a9d5ba8385.tar.gz kutter-c5fc264a075b5458cb68ffff5bced2a9d5ba8385.tar.xz kutter-c5fc264a075b5458cb68ffff5bced2a9d5ba8385.zip | |
atsamd: Add a get_pclock_frequency() helper function
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/atsamd/serial.c')
| -rw-r--r-- | src/atsamd/serial.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/atsamd/serial.c b/src/atsamd/serial.c index e8536b50..81eda46f 100644 --- a/src/atsamd/serial.c +++ b/src/atsamd/serial.c @@ -4,7 +4,6 @@ // // This file may be distributed under the terms of the GNU GPLv3 license. -#include "autoconf.h" // CONFIG_SERIAL_BAUD #include "board/serial_irq.h" // serial_rx_data #include "internal.h" // enable_pclock #include "samd21.h" // SERCOM0 @@ -28,7 +27,8 @@ serial_init(void) | SERCOM_USART_CTRLA_RXPO(3)); su->CTRLA.reg = areg; su->CTRLB.reg = SERCOM_USART_CTRLB_TXEN | SERCOM_USART_CTRLB_RXEN; - uint32_t baud8 = CONFIG_CLOCK_FREQ / (2 * CONFIG_SERIAL_BAUD); + uint32_t freq = get_pclock_frequency(SERCOM0_GCLK_ID_CORE); + uint32_t baud8 = freq / (2 * CONFIG_SERIAL_BAUD); su->BAUD.reg = (SERCOM_USART_BAUD_FRAC_BAUD(baud8 / 8) | SERCOM_USART_BAUD_FRAC_FP(baud8 % 8)); NVIC_SetPriority(SERCOM0_IRQn, 0); |