27 lines
1.2 KiB
Markdown
27 lines
1.2 KiB
Markdown
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As of Jan 2019 we still like Cortex-M a lot stm32, here are the reasons: Performance, Availability,
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Toolchain, Hardware API.
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1. **Performance** - stm32 gives us 160MHz and close to 200Kb of RAM with floating point unit.
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2. **Availability** stm32 is cheap and readily available in low quantity both just chips and convenient dev boards
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3. **Toolchain** Free GNU Arm Embedded Toolchain allows us to compile and debug software
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4. **Hardware API** ChibiOS Hardware Abstraction Layer allows us to not spend too much time debugging low level peripheral registers
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One of the things we do not like about smt32 Cortex-M is the fact that this family is not automotive and not based on 5 volts.
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In an ideal chip we would like to see 5v ADC and maybe more hardware timers.
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We've looked into a few other chips but so far have not found a better overall platform.
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Relevant forum threads:
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S32K148 https://rusefi.com/forum/viewtopic.php?f=13&t=816
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SPC563Mx, MPC563x - this one has some ChibiOS support - https://rusefi.com/forum/viewtopic.php?f=13&t=429
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TMS570 - https://rusefi.com/forum/viewtopic.php?f=13&t=407 & https://github.com/rusefi/rusefi/issues/89
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(in Russian) https://rusefi.com/forum/viewtopic.php?f=8&t=269
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