diff options
Diffstat (limited to 'src/atsamd/i2c.c')
| -rw-r--r-- | src/atsamd/i2c.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/src/atsamd/i2c.c b/src/atsamd/i2c.c index 57374443..03a75f11 100644 --- a/src/atsamd/i2c.c +++ b/src/atsamd/i2c.c @@ -1,13 +1,12 @@ -// i2c support on samd21 +// i2c support on samd // -// Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net> +// Copyright (C) 2018-2019 Kevin O'Connor <kevin@koconnor.net> // // This file may be distributed under the terms of the GNU GPLv3 license. #include "internal.h" // enable_pclock #include "command.h" // shutdown #include "gpio.h" // i2c_setup -#include "samd21.h" // SERCOM3 #include "sched.h" // sched_shutdown #define TIME_RISE 125ULL // 125 nanoseconds @@ -35,7 +34,7 @@ i2c_init(void) | SERCOM_I2CM_CTRLA_INACTOUT(3) | SERCOM_I2CM_STATUS_SEXTTOUT | SERCOM_I2CM_STATUS_MEXTTOUT - | SERCOM_I2CM_CTRLA_MODE_I2C_MASTER); + | SERCOM_I2CM_CTRLA_MODE(5)); si->CTRLA.reg = areg; uint32_t freq = get_pclock_frequency(SERCOM3_GCLK_ID_CORE); uint32_t baud = (freq/I2C_FREQ - 10 - freq*TIME_RISE/1000000000) / 2; |