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Merge pull request #6670 from dhalbert/fix-samd-i2c-freq-check

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Fix SAMD I2C frequency check
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Dan Halbert 2022-08-01 14:08:54 -04:00 committed by GitHub
commit 664cadc3ac
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1 changed files with 2 additions and 2 deletions
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4
ports/atmel-samd/common-hal/busio/I2C.c
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@ -123,8 +123,8 @@ void common_hal_busio_i2c_construct(busio_i2c_obj_t *self,
// The maximum frequency divisor gives a clock rate of around 48MHz/2/255
// but set_baudrate does not diagnose this problem. (This is not the
// exact cutoff, but no frequency well under 100kHz is available)
if (frequency < 95000 &&
i2c_m_sync_set_baudrate(&self->i2c_desc, 0, frequency / 1000) != ERR_NONE) {
if ((frequency < 95000) ||
(i2c_m_sync_set_baudrate(&self->i2c_desc, 0, frequency / 1000) != ERR_NONE)) {
reset_pin_number(sda->number);
reset_pin_number(scl->number);
common_hal_busio_i2c_deinit(self);