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RIOT supports two distinct families of the MSP430: The [MSP430 x1xx]
MCU family and the [MSP430 F2xx/G2xx] MCU family. For both incompatible
MCU families the code was located in the msp430fxyz folder, resulting
in case of the UART driver in particularly bizarre code looking roughly
like this:
#ifndef UART_USE_USCI
/* implementation of x1xx peripheral ... */
#else
/* implementation of F2xx/G2xx peripheral ... */
#endif
/* zero shared code between both variants */
This splits the peripheral drivers for USCI and USART serial IP blocks
into separate files and relocates everything in cpu/msp430, similar to
how cpu/stm32 is organized.
[MSP430 x1xx]: https://www.ti.com/lit/ug/slau049f/slau049f.pdf
[MSP430 F2xx/G2xx]: https://www.ti.com/lit/ug/slau144k/slau144k.pdf
24 lines
654 B
Makefile
24 lines
654 B
Makefile
MODULE = periph
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# All supported MSP430 families use special serial IP block that implements
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# various serial bus interfaces using the same hardware block. For the
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# MSP430 x1xx family, the block is called USART. For the MSP430 F2xx/G2xx
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# family it is the (incompatible) USCI.
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ifeq (msp430_x1xx,$(CPU_FAM))
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SERIAL_IP_BLOCK := usart
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endif
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ifeq (msp430_f2xx_g2xx,$(CPU_FAM))
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SERIAL_IP_BLOCK := usci
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endif
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# select family specific peripheral drivers.
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ifneq (,$(filter periph_uart,$(USEMODULE)))
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SRC += uart_$(SERIAL_IP_BLOCK).c
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endif
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ifneq (,$(filter periph_spi,$(USEMODULE)))
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SRC += spi_$(SERIAL_IP_BLOCK).c
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endif
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include $(RIOTMAKE)/periph.mk
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