Gen2.4.1 (ex2.8) = MM32SPIN05PFOP :-(

[RoboDurden]

https://www.mindmotion.com.cn/en/products/mm32mcu/mm32spin/mm32spin_specific_mcu/mm32spin05/

• 32bit Arm® Cortex®M0 processor as the core
• Maximum operating frequency is up to 72M
• 32K bytes of Flash memory
• 4K bytes of SRAM
• Boot loader supports Chip Flash and ISP (InSystem Programming)
• Embedded factorytuned 48/72MHz high speed oscillator
• One 12bit ADC and 1μS of conversion time (up to 13 channel)
• Supported peripherals: Timer, UART, I2C, SPI and ADC
• One 16bit 4channel advancedcontrol timer with 4channel PWM output, dead-time
  generation and emergency stop
• Serial wire debug (SWD)
• Two UARTs
• One I2C
• Two SPIs

https://www.keil.com/dd2/mindmotion/mm32spin05nt/

https://github.com/topics/mm32

Would be nice if someone knows how to add this device to the Keil IDE.

[reed-dan]

Does the information here help add it to KEIL?

https://github.com/iclite/mm32_startup/tree/master

[RoboDurden]

Would be nice if @WizzardDr would explain how he added the GD32E230 target to the project:

If a new target would be added, then your MM mcu can be choosen:

Then this repo might already compile.
It might need some fixes like fore the E230 mcu in target.h

#ifdef GD32E230
	#include "gd32e23x.h"
	#define TARGET_nvic_irq_enable(a, b, c){nvic_irq_enable(a, b);}
	#define TARGET_nvic_priority_group_set(a)	// that function does not exist for this target = not needed ?
	#define TARGET_adc_vbat_disable()
#else
	#include "gd32f1x0.h"
	
	#define TARGET_nvic_irq_enable(a, b, c){nvic_irq_enable(a, b, c);}
	#define TARGET_nvic_priority_group_set(a){nvic_priority_group_set(a);}
	#define TARGET_adc_vbat_disable(){adc_vbat_disable();}
#endif

But as WizzardDr succeeded with adding a new target, i now am quite optimistic that he and me could add your MM mcu and i/we resolve all compiler errors.

But are you willing to invest some hours to trace the pins ??

[RoboDurden]

Okay, a target can be added in menu->Project->Manage->ProjectItems..

But now i am stuck at adding the Device files and i do not know the name of the propper #include file:

ideas welcome.

[reed-dan]

When I look at my board it is slightly different than this board, appears to have the same processor though.

Board Source: Jetson Plasma
Model: Plasma (JPLSM-BLK)
Construction: Plastic Base Plastic wheel
UPC: 811991031504
Battery: ELITOP-1001U-JD LI-ION 36V 90Wh 2500mAh
-Shenzhen Elite Electric Co. Ltd. MH63800 HY-JD-A20GNB3642
Input: 36VDC 0.85A Max capicity 2.5AH
Max Speed 10 Mph
Max Weight 220LB

Slave Board Identifiers
Taotao Technology
2025
pu20200616011
94v-0 y-d
e253642
816117r

[RoboDurden]

To me this looks identical to the photos of the first board.

But i have no idea from where to get the MM counterplay of the Standard Peripherals:

I have nearly zero experience with the Keil Ide :-/

[reed-dan]

Adding some documentation

https://www.mindmotion.com.cn/products/mm32mcu/mm32spin/mm32spin_specific_mcu/mm32spin05/

AN0012_MM32_Series_Keil_pack_install_SC _translated EN.pdf
UserManual_MM32SPIN05x_q_EN.pdf
DS_MM32SPIN05x_version_F_EN.pdf
FAQ_MM32SPIN05_EN.pdf
AN6301_Sensorless_Trapezoidal_Control_of_BLDCM__translatedSC (1).pdf
DS_MM32SPIN05x_version_E_EN.pdf

[RoboDurden]

Yes thanks, i have added the pdf documents to the manuals folder.
But i fear we still do not know how to install the Standard Peripherals like ADC, DMA, GPIO

[reed-dan]

Also found in

Board Source: JETSON ALPA
Model: Alpha (JALPHA-BLK)
Construction: Plastic Base
FCC: 2AV54ALPHA
https://fcc.report/FCC-ID/2AV54ALPHA

[BigVoo]

Looking for help on this board. I've burned through many of the RioRand motor controllers and decided to use one of the 4 different hoverboard motors that I have. Any help will be appreciated. I'm a newbie, but I love tinkering and learning new things.

[RoboDurden]

If you have different boards you better start with a GD32F130 MCU and not this not yet supported MM32SPIN05.

[BigVoo]

I do have a GD32F130 C8T6 MCU board, but it's a newer board and does not match any of the examples. I wasn't sure if I could flash or not since it didn't exactly match. If I can, then that will be perfect since that's the board and motor that I want to use.

[RoboDurden]

No you need to start a new issue here, upload high res photos of front and backside and start tracing the pins. See the 2.6.1 issue currently being active.
This 2.8 is not yet traced either.

I always like to add new layouts, so feel free to go ahead :-)

[AILIFE4798]

@RoboDurden heres a toturial of using keil with mm32spin maybe itll help i cannot tell
mm32spinexample(changeZIPto7Z).zip
MM32_KEIL_Pack_2.18.zip

[AILIFE4798]

Okay, a target can be added in menu->Project->Manage->ProjectItems..

But now i am stuck at adding the Device files and i do not know the name of the propper #include file:

ideas welcome.

i am not sure if this is your problem but i think you can copy it from example

[AILIFE4798]

@RoboDurden can you please look into it now i have included the new build target
it still have 83 error but those are related to constant not defined can you fix them

#50

[RoboDurden]

Thanks for you work ! I have accepted the pull request :-)
But i did not like that you changed

#ifndef ADC_BATTERY_VOLT
	#define ADC_BATTERY_VOLT      0.024169921875 

to

#ifndef ADC_BATTERY_VOLT
	#define ADC_BATTERY_VOLT      0.02488682634 	// V_Batt to V_BattMeasure = factor 30: ( (ADC-Data/4095) *3,3V *30 )

This would apply to all other layouts and not only the 2.6.
Instead i will add

#define ADC_BATTERY_VOLT 0.02488682634 // V_Batt to V_BattMeasure = factor 30: ( (ADC-Data/4095) *3,3V *30 )
to the defines_2-6.h

[RoboDurden]

i have uploaded my first changes, so please @AILIFE4798 sync your code.

#ifdef GD32E230
	#define LAYOUT 7
#elif MM32SPIN05
	#define LAYOUT 8
#else
	#define LAYOUT 6
#endif

//#define MASTER		// uncomment for MASTER firmware. Choose USART0_MASTERSLAVE or USART1_MASTERSLAVE in your defines_2-?.h file
//#define SLAVE			// uncomment for SLAVE firmware. Choose USART0_MASTERSLAVE or USART1_MASTERSLAVE in your defines_2-?.h file
#define SINGLE			// uncomment if firmware is for single board and no master-slave dual board setup

Looks like many files in the Inc project folder should not be there. Maybe you can fix this:

[RoboDurden]

I am down to 75 errors and 0 warning.
Many errors are to my PB8 -> PORT_B + PIN_8 marcors that i introduced lately to make the defines_2-x.h easier.
But these macros are GD32 specific so i now first have to investigate how MM is coding PORT and PIN.
This might take some hours.

I am still struggeling to get water and electricity running in my autarcic train station:

It is -7°C outside (10:44 o' clock)

[AILIFE4798]

yes,the adc calibration should be done on every board because the resistors and mcus are not exactly identical

you can delete those files in inc its not needed
i am just experimenting with it and those file is included in device already

[RoboDurden]

done and repo updated :-)

[AILIFE4798]

do you have real hardware layout2.8 to test on or should i buy more of them to test
because the real problem will start from how to flash it

[RoboDurden]

MM is also using port defines like GPIOB but not pin defines like GPIO_PIN_9 :-/ So i must learn the defines to acces a port/pin for MM.
With GD32 the GPIO_PIN_9 is defined in gd32f1x0_gpio.h:

/* GPIO pin definitions */
#define GPIO_PIN_0                 BIT(0)                /*!< GPIO pin 0 */
#define GPIO_PIN_1                 BIT(1)                /*!< GPIO pin 1 */
#define GPIO_PIN_2                 BIT(2)                /*!< GPIO pin 2 */
#define GPIO_PIN_3                 BIT(3)                /*!< GPIO pin 3 */
#define GPIO_PIN_4                 BIT(4)                /*!< GPIO pin 4 */
#define GPIO_PIN_5                 BIT(5)                /*!< GPIO pin 5 */
#define GPIO_PIN_6                 BIT(6)                /*!< GPIO pin 6 */
#define GPIO_PIN_7                 BIT(7)                /*!< GPIO pin 7 */
#define GPIO_PIN_8                 BIT(8)                /*!< GPIO pin 8 */
#define GPIO_PIN_9                 BIT(9)                /*!< GPIO pin 9 */
#define GPIO_PIN_10                BIT(10)               /*!< GPIO pin 10 */
#define GPIO_PIN_11                BIT(11)               /*!< GPIO pin 11 */
#define GPIO_PIN_12                BIT(12)               /*!< GPIO pin 12 */
#define GPIO_PIN_13                BIT(13)               /*!< GPIO pin 13 */
#define GPIO_PIN_14                BIT(14)               /*!< GPIO pin 14 */
#define GPIO_PIN_15                BIT(15)               /*!< GPIO pin 15 */
#define GPIO_PIN_ALL               BITS(0,15)            /*!< GPIO pin all */

The PORT definitions for MM are in reg_gpio.h :

#define GPIOA                           ((GPIO_TypeDef*) GPIOA_BASE)
#define GPIOB                           ((GPIO_TypeDef*) GPIOB_BASE)
#define GPIOC                           ((GPIO_TypeDef*) GPIOC_BASE)
#define GPIOD                           ((GPIO_TypeDef*) GPIOD_BASE)

But i can no identify the PIN definitions yet. Maye a MM32 code example would help

I think i have 2.8 but not here in the train station i think. And honestly i do not have the time=happiness at the moment to build yet another test setup. So it would be great if you had 2.8 hardware. Was $2 a typo or can you really buy fully assembled 2.8 boards for USD 2 ???

[RoboDurden]

Maybe these are the definitions we need: https://github.com/koendv/MM32SPIN27-Arduino/blob/525f27bd91b756aeabad3b7a706f60cb9fb75275/mm32/cores/arduino/HAL_Lib/hal_gpio.h#L89

But i would like to find these defines in the target files you added.

[AILIFE4798]

here is a example of mm32 blynk

$2 is for a pair of master and slave layout2.8.1 board by razor no led or motor
i think its hard to beat
heres a link not sure if you can open it outside of china if not you have to use VPN
https://m.intl.taobao.com/detail/detail.html?id=722577319258
a set of gen1 board with mainboard+2 side board+led board is $12 still cheap(seller say its full GD32 so compatiable with eferu)
keep in mind its china everything is dirt cheap

[RoboDurden]

Where can i download this blynk example ?

We have problems to port the EFeru gen1 firmware to the newer AT32 Gen1 boards ! So if there is no GD32 mcu on theser $12 boards i would be caucious.

[I-hate-2FA]

i see its 1, its the most terrible of all, you should really try other ones

[I-hate-2FA]

is your board foc capable, the $2 one isnt

[trondin]

I hope so, it is $4 :)
https://www.aliexpress.com/item/1005005959910034.html
Trying to modify EFeru software for this board now.

[I-hate-2FA]

oh this one is just the one i use its $2 in china, its not foc capable, what do you expect for the price lmao

[I-hate-2FA]

eferu firmware is terrible, mine is way superior, you just didnt rtfm

[trondin]

so far EFeru software are used by many peoples, and they are happy. For sure his simulink generated code - it is something... If you are not simulink user.
I don't like idea to do automatic pin adjustment, not so easy to modify code if you need.
Let's hope your code will be more user friendly, so far control is not elementary. BTW, are you sure ESP32 will survive with 5V mm32spin?

[I-hate-2FA]

yes esp32 is 5v tolerant
the auto pin adjustment is better to modify the code, so you can test same code on different hardware without changing config every time, and eferu code its just IMPOSSIBLE to modify for board with other layout
the low speed problem is clearly with drivemode, if you used drivemode 2 or 3 itll be very good
im not simulink user

[trondin]

STM32's most pins are 5v tolerant, but for last 2 days I manage to kill 2 UARTs. Fortunately it has 3 :)

[trondin]

just IMPOSSIBLE to modify for board with other layout
BTW, I just got my motor moving with eferu code and mm32spin05 a few minutes ago.
The biggest problem - something is not very smooth with torque foc mode.
For sure his code was modified for bare metal, no any HAL or another libraries.
Problem - cortex m0 is too slow for his code and 16kHz, I have used 12kHz. And something wrong with ADC - one phase level is too small (about 1.5 times difference between phase voltage), probably problem with timing between PWM and ADC measurement.
I hate mm32spin05 UART - it looks simple, but it is something...

[RoboDurden]

Yes i tested EFeru torque mode only once. With no load, the motor was not spinning smootly. So i continued with simple pwm/voltage mode.
So you succeeded with an EFeruFOC port for the mm32spin05 !?
I thought this board was not capabale of two phase currents - which everyone tells me to be mandatory for FOC.
Are you working with platformIO ?

[I-hate-2FA]

this board hardware not capable of foc what are you talking about

[I-hate-2FA]

if you want none blocking uart with dma its not very easy

[I-hate-2FA]

i did try, simply modify eferu for another gd32f103 is already near impossible, it actually hapenned (#77)

[trondin]

It has even too much connection - 3 channel for phase, I have used 2 of them. Usually hoverboard control board has amplifiers for current with low amplification (3x). But mm32spin05 ADC has 1.2V ref voltage, it helps a lot.
I have used EFeru software in my mobility scooter few years ago ( I am disabled) https://www.youtube.com/watch?v=8kPj900S7OM

[RoboDurden]

please upload a full image of your schematics. I do not see the phase currents input pins.

[trondin]

[RoboDurden]

Thanks for the upload.
2.4.1 has three gate driver chips. Your board has analog gate drivers. So this must be a new MM32SPIN05 board.
Better start a new issue so i can assign a new id.

And this is the circuit for the phase currents B and C ?

I do not really understand how this should work. But the MM32 has internal comperators that can works as OpAmps ?

If got a EFeru port running, please create your own repo here so we can have a look at your code.
PlatformIO ?

[RoboDurden]

2.2.22 Comparator (COMP)
The product has one builtin comparator which can be used independently (suitable
for I/Os on all terminals) or in combination with the timer. It can also be used for a
variety of functions, including:
• Trigger wake up events in the lowpower mode by analog signals
• Adjust the analog signal

Maybe this one comperator can be toggle between two analog inputs..

[trondin]

timer

	// -------------
	TIM1->SMCR = 0;
  TIM1->CR1 = TIM_CR1_CMS_CENTERALIGNED1;  // Center-aligned mode 1
  TIM1->PSC = 0;
  TIM1->ARR = PWM_RES;  // 2250	
  TIM1->RCR = 1; 
  // master/slave
  TIM1->CR2 = TIM_CR2_MMS_UPDATE;   // TRGO	
	//TIM1->CR2 = TIM_CR2_MMS_OC4REF;  //CCR4
	
  // ConfigChannel 
  TIM1->CCMR1 = TIM_CCMR1_OC1M_PWM1 | TIM_CCMR1_OC2M_PWM1;   
  TIM1->CCMR2 = TIM_CCMR2_OC3M_PWM1;  
//	TIM1->CCMR2 |= TIM_CCMR2_OC4M_INACTIVE; 

  // break
  TIM1->BDTR = TIM_BDTR_OSSR | TIM_BDTR_OSSI | DEAD_TIME;
  // enables
  TIM1->CCER = TIM_CCER_CC1E | TIM_CCER_CC1NE 
	           | TIM_CCER_CC2E | TIM_CCER_CC2NE 
						 | TIM_CCER_CC3E | TIM_CCER_CC3NE;
  TIM1->BDTR |= TIM_BDTR_MOE;
	TIM1->CR2 |= TIM_CR2_OIS1N | TIM_CR2_OIS2N | TIM_CR2_OIS3N;

  //TIM1->CCR4 = TIM1->ARR -500; 




  // start  
  TIM1->CR1 |= TIM_CR1_CEN; 
}

ADC (comparator is not in the game)

void ADC1_Init(void)
{
  RCC->APB2ENR |=  RCC_APB2ENR_ADC1EN;	

 	RCC->AHBENR |= RCC_AHBENR_GPIOA | RCC_AHBENR_GPIOB; 
  GPIOA->CRL  = 0;
  GPIOB->CRL &= 0xFFFFFF00;
	
  ADC1->CFGR = ADC_CFGR_ADEN |  ADC_CFGR_TEN | ADC_CFGR_VEN | ADC_CFGR_PRE_5;   //14.4MHz, temper & ref enable
  ADC1->CR = ADC_CR_SCAN | ADC_CR_T1_TRIG  | ADC_CR_DMAEN;		

  ADC1->CHSR = ADC_CHSR_CH0 | ADC_CHSR_CH1   // phase b
             | ADC_CHSR_CH4 | ADC_CHSR_CH5   //phase c
             | ADC_CHSR_CH7                  // I common
	           | ADC_CHSR_CH9                  // voltage             
             | ADC_CHSR_CHT;                 // temperature


  RCC->AHBENR |=  RCC_AHBENR_DMA1EN;

  DMA1_Channel1->CCR   = 0;
  DMA1_Channel1->CNDTR = 7;
  DMA1_Channel1->CPAR  = (uint32_t)&(ADC1->DR);
  DMA1_Channel1->CMAR  = (uint32_t)&adc_buffer_raw;
  DMA1_Channel1->CCR   = DMA_CCR_MSIZE_0 | DMA_CCR_PSIZE_0 | DMA_CCR_MINC | DMA_CCR_CIRC | DMA_CCR_TCIE; 
  DMA1_Channel1->CCR  |= DMA_CCR_EN;

  NVIC_SetPriority(DMA1_Channel1_IRQn, 0);
  NVIC_EnableIRQ(DMA1_Channel1_IRQn);
	

	// ADC1->CR |= ADC_CR_TRGEN;
}

interruption

void DMA1_Channel1_IRQHandler(void) 
{
  DMA1->IFCR = DMA_IFCR_CTCIF1;
	
		adc_buffer.rrB = (adc_buffer_raw[0]- adc_buffer_raw[1]) & 0xFFF;
		adc_buffer.rrC = (adc_buffer_raw[2] - adc_buffer_raw[3]) & 0xFFF;
		adc_buffer.dcr = adc_buffer_raw[4] & 0xFFF;    
	  adc_buffer.batt1 = adc_buffer_raw[5] & 0xFFF;       
	  adc_buffer.temp = adc_buffer_raw[6] & 0xFFF;   
	

board

[trondin]

Platformio for editing and keil uVision under wine for compilation. I didn't adapt platformio for mm32, compilation works but binary is wrong. It is possible to get working with platformio, but it takes time. I just use the simplest way.

[I-hate-2FA]

i already know there are 3 wire connected to phase, but the connection is NOT to the comparator, so its not useable

[I-hate-2FA]

this wiring is for mcu with a built in opamp like the lks32, the 3 pin wiring is exactly what you will fing connecting to the opamp
but the mm32spin does not have one

[I-hate-2FA]

this board is 2.4.1, the exact same one i have, long ago i have reverse engineered it(but i didnt draw full schematic)

[trondin]

this wiring is for mcu with a built in opamp like the lks32, the 3 pin wiring is exactly what you will fing connecting to the op
Brilliant! It explains a role of stupid resistor! Just to find LKS32MC05x and replace - and you board will be perfect! But where to find?

[RoboDurden]

[RoboDurden]

I think the one comperator of the MM32 could do the same as an opamp.. if the PA0,PA1,PA2 pins where connected to the MM32 stlightly different ?

And as there are multiple io pins available for this one comperator, i guess the software could toggle between two sets to fetch two phase currents..

[I-hate-2FA]

it is not possible, you have the diagram and pinout, clearly one all connect to in+ other all connect to in-, i already checked

[RoboDurden]

maybe @trondin got the pin connections wrong in his nice schematics :-)

[I-hate-2FA]

its possible that i or him made mistake, but its not possible that we both do.
you have the board, you can check it your self