RMCS-2303 Motor Driver Integration - speed control issue

[Ritika_10]

I am successfully receiving feedback from the motor side, including the encoder values, which are being read accurately.

I am writing to update you on the motor control project and to seek your guidance on an issue I'm currently facing.

Project Configuration:

• Microcontroller: STM32H723ZG
• Motor Drivers: Rhino RMCS-2303 (Quantity: 2)
• Motors: Rhino DC Motors (Quantity: 2)

Hardware Setup:

Motor 1 (Left Motor):

• UART Communication: USART2 (PA2-TX, PA3-RX)
• Control Pins: ENA (PC0), DIR (PC2), BRK (PC4)
• Feedback: ADC (PA0) - Optional
• Slave ID: 7

Motor 2 (Right Motor):

• UART Communication: USART1 (PA9-TX, PA10-RX)
• Control Pins: ENA (PC1), DIR (PC3), BRK (PC5)
• Feedback: ADC (PA1) - Optional
• Slave ID: 6

Current Status:

I have successfully implemented the basic motor control system with the following functionalities:

• :white_heavy_check_mark: Forward movement (F command)
• :white_heavy_check_mark: Backward movement (B command)
• :white_heavy_check_mark: Left turn (L command)
• :white_heavy_check_mark: Right turn (R command)
• :white_heavy_check_mark: Encoder feedback reading from both motors

Issue Faced:

However, I am facing difficulty in controlling the motor speed dynamically. The motors continue to run at the same speed regardless of the speed command I send. I am unable to increase or decrease the speed using commands.

Could you please guide me on:

1. The correct command format/protocol for speed control with RMCS-2303?
2. Any specific register settings or UART command structure I should follow?
3. Whether any additional configuration is required in the driver settings?

[GMA]

Hello @Ritika_10,

As mentioned here, "The goal of this e-Community is to provide a peer-to-peer and direct support for people using ST products".