About shane mattner

shane mattner · 2025-01-22

Has anyone been able to implement the MCP in python or C code? I've been trying to figure it out in Python for a while now. It's really disappointing ST doesn't provide a .c/.h file for this protocol as I've wasted a ton of time trying to re-implem...

shane mattner · 2024-11-21

MCSDK v6.3.2 It looks like the STM32 is failing to PWM fet gates and that's resulting in high current and an Under Voltage fault.I made a board with the STM32G431RBT6 and DRV8323 driver chip. I've used the DRV chip in another board for a long time wi...

shane mattner · 2024-11-11

[VERSION]: MCSDK 6.3.1 & 6.3.2[TOOL]: MCWB, Motor PilotZip file contains MCWB project file and Board Designer file.I'm having an issue with gate drive timing using:- MCU: STM32G431RB- Gate Driver: DRV8323H (Hardware interface version)- Using STM32 MC...

shane mattner · 2024-11-08

[VERSION]: 6.3.1[TOOL]: Board Designer, Motor Pilot, MCSDK[DETAILS]: Created custom board based on IHM16M dev kit, using STM32G431RB + DRV8323. Motor Pilot cannot spin motor, but encoder signals look accurate, Vbus signal is accurate, and current sen...

shane mattner · 2024-11-07

I'm trying to make a custom board project with Board Designer and found the documentation lacking for entering the correct parameters. The Bus Voltage Divider needs to be equal to 1/(voltage divider ratio). Also, the resistors on the Board Designer a...

shane mattner · 2025-02-16

ST provides the firmware that for protocol that the processor uses. So you can figure out the entire protocol by analyzing the firmware and the documentation. But it's been a real pain so far. I'm not sure what ST is thinking. And honestly it's le...

shane mattner · 2025-01-23

Thank you @RikB. I will try to switch to the C++ library and see if that makes a difference. I managed to finally get a motor to spin yesterday by playing back a recorded byte session from Motor Pilot to the board, but still unsure how to stop the m...

shane mattner · 2025-01-22

Thanks for the reply @RikB . Re-implementing the MCP has been a real pain. I discovered the pause and read through the documentation but it's been difficult to write python code to actually spin the motor. I've gotten connect/disconnect and a few...

shane mattner · 2024-11-11

I found that 4 of the pwm signals were swapped around. After changing them to their correct connection I'm running into low voltage faults. But I'll post that on another thread.

shane mattner · 2024-11-08

Here are some plots from trying to spin the motor. The rotor stays stationary the whole time. Here are some logic analyzer shots of the 6 mosfet PWM pins:And here is the corresponding scope shot at 16kHz: I can rotate the motor to get other patterns...

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MCP code

No PWM of fet gates with STM32G431RBT6 motor controller

STM32G431 + DRV8323H - High-side FETs overlapping despite hardware dead time

Custom Board bringup issues

Board Designer - Bus Voltage Sensing documentation needed

Re: ASPEP MCP protocol implementation

Re: ASPEP MCP protocol implementation

Re: ASPEP MCP protocol implementation

Re: Custom Board bringup issues

Re: Custom Board bringup issues