25eb09c3bb
replace *(.init_array .init_array.*) with KEEP(*(.init_array .init_array.*)). The KEEP statement within a linker script will instruct the linker to keep the specified section, even if no symbols inside it are referenced. This statement is used within the SECTIONS section of the linker script. This becomes relevant when garbage collection is performed at link time, enabled by passing the --gc-sections switch to the linker. The KEEP statement instructs the linker to use the specified section as a root node when creating a dependency graph, looking for unused sections. Essentially forcing the section to be marked as used. Signed-off-by: cuiziwei <cuiziwei@xiaomi.com> |
||
|---|---|---|
| .. | ||
| configs | ||
| include | ||
| scripts | ||
| src | ||
| CMakeLists.txt | ||
| Kconfig | ||
| README.txt | ||
README
======
The B-G431B-ESC Discovery kit board is based on the STM32G431CB microcontroller,
the L6387 driver and STL180N6F7 power MOSFETs.
UART/USART PINS
---------------
USART2 is accessible through J3 pads and ST LINK Virtual Console:
USART2_TX - PB3
USART2_RX - PB4
Configuration Sub-directories
-------------------------
nsh:
---
Configures the NuttShell (nsh) located at apps/examples/nsh. The
Configuration enables the serial interfaces on USART2.
foc_f32 and foc_b16:
---------------------
FOC examples based on hardware on board.
Pin configuration:
Board Function Chip Function Chip Pin Number
-------------- -------------- ---------------
Phase U high TIM1_CH1 PA8
Phase U low TIM1_CH1N PC13
Phase V high TIM1_CH2 PA9
Phase V low TIM1_CH2N PA12
Phase W high TIM1_CH3 PA10
Phase W low TIM1_CH3N PB15
Current U + OPAMP1_VINP PA1
Current U - OPAMP1_VINM PA3
Current V + OPAMP2_VINP PA7
Current V - OPAMP2_VINM PA5
Current W + OPAMP3_VINP PB0
Current W - OPAMP3_VINM PB2
Temperature PB14
VBUS ADC1_IN1 PA0
POT ADC1_IN11 PB12
LED GPIO_PC6 PC6
ENCO_A/HALL_H1 TIM4_CH1 PB6
ENCO_B/HALL_H2 TIM4_CH2 PB7
ENCO_Z/HALL_H3 TIM4_CH3 PB8
BUTTON GPIO_PC10 PC10
PWM PA15
CAN_RX FDCAN1_RX PA11
CAN_TX FDCAN1_TX PB9
CAN_TERM PC14
GPIO_BEMF PB5
BEMF1 ADC2_IN17 PA4
BEMF2 ADC2_IN5 PC4
BEMF3 ADC2_IN14 PB11
Current shunt resistance = 0.003
PGA gain = 16
Current sense gain = -9.14 (inverted current)
Vbus sense gain = 18k/(18k+169k) = 0.0962
Vbus min = ?
Vbus max = 25V
Iout max = 40A peak
BEMF sense gain = 2.2k/(10k+2.2k) = 0.18
IPHASE_RATIO = 1/(R_shunt*gain) = -36.47
VBUS_RATIO = 1/VBUS_gain = 10.4