TMCStepper
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teemuatlut
Use different hardware spi
On the board that I designed and uses stm32F4 there are 3 spi hardware. The TMC2130 that I use are connected to a dedicated spi hardware. The TMCStepper library relies on the software spi or the Arduino SPI. What I ask is if it is possible to implement a method to pass the pointer to a SPIClass other than the standard Arduino one.
I currently use a SPIClass * TMC_HW_SPI pointer declared extern and initialized in MarlinCore.cpp.
The problem is that I have to patch the TMCStepper library every time a new version is released.
If I want to use the Arduino SPI:
TMC_HW_SPI = & SPI;
if not :
TMC_HW_SPI = new SPIClass (SPI1, TMC_SW_MOSI, TMC_SW_MISO, TMC_SW_SCK);
If there was a method to pass the pointer it would be more portable without changing the library code.
See the upcoming Release_v1 branch. It's still very much alpha stage at this point though.
From: mr-miky [email protected] Sent: Saturday, August 1, 2020 4:09:00 PM To: teemuatlut/TMCStepper [email protected] Cc: Subscribed [email protected] Subject: [teemuatlut/TMCStepper] Use different hardware spi (#142)
On the board that I designed and uses stm32F4 there are 3 spi hardware. The TMC2130 that I use are connected to a dedicated spi hardware. The TMCStepper library relies on the software spi or the Arduino SPI. What I ask is if it is possible to implement a method to pass the pointer to a SPIClass other than the standard Arduino one.
I currently use a SPIClass * TMC_HW_SPI pointer declared extern and initialized in MarlinCore.cpp. The problem is that I have to patch the TMCStepper library every time a new version is released.
If I want to use the Arduino SPI:
TMC_HW_SPI = & SPI;
if not :
TMC_HW_SPI = new SPIClass (SPI1, TMC_SW_MOSI, TMC_SW_MISO, TMC_SW_SCK);
If there was a method to pass the pointer it would be more portable without changing the library code.
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Hello, has this been implemented? I am using a teensy 4.1 and would like to utilise SPI1 instead of SPI with a TMC5160. Just wondering if this is possible...
