b1229efbd1
all: Fix spelling mistakes based on codespell check.
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Signed-off-by: Damien George <damien@micropython.org>
2023-04-27 18:03:06 +10:00
fcd1788937
samd: Avoid under-/overflow in I2C and SPI baudrate calculations.
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Applies to both SPI and I2C. The underflow caused high baudrate settings
resulting in the lowest possible baudrate. The overflow resulted in
erratic baudrates, not just the lowest possible.
2022-12-14 12:41:42 +11:00
a1eebc507e
samd/machine_spi: Register SerCom objects as root pointers.
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Protect SerCom (UART, SPI, I2C) objects from getting freed by the GC when
they go out of scope without being deinitialized. Otherwise the ISR of a
Sercom may access an invalid data structure.
2022-10-25 23:48:37 +11:00
e275a58ac1
samd: Rename machine I2C type consistently across ports.
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This renames:
- machine_hw_i2c_type -> machine_i2c_type
2022-10-22 12:57:32 +11:00
d9338aabc5
samd: Change the symbol names for the peripheral clocks.
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From APB_FREQ to DFLL48M_FREQ, and from apb_freq to peripheral_freq.
2022-10-06 23:10:08 +11:00
3625388d8c
samd/samd_isr: Change the way a Sercom ISR is registered and called.
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Code size diff: +12 Bytes
BSS diff: -12 Bytes
RAM usage: +16 Bytes
Speed increase: a few clock cycles per call
Style improvement: ++
2022-10-06 22:52:10 +11:00
94d27ae28f
samd/machine_i2c: Add the machine.I2C class.
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Using the common API. Tested with SAMD21 and SAMD51 boards.
2022-10-06 22:49:06 +11:00
Damien George