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-rw-r--r--stm/boards/NETDUINO_PLUS_2/mpconfigboard.h48
-rw-r--r--stm/boards/NETDUINO_PLUS_2/pins.csv28
-rw-r--r--stm/boards/PYBOARD3/mpconfigboard.h42
-rw-r--r--stm/boards/PYBOARD3/pins.csv37
-rw-r--r--stm/boards/PYBOARD4/mpconfigboard.h42
-rw-r--r--stm/boards/PYBOARD4/pins.csv45
-rw-r--r--stm/boards/STM32F4DISC/mpconfigboard.h43
-rw-r--r--stm/boards/STM32F4DISC/pins.csv85
-rwxr-xr-xstm/boards/make-pins.py241
-rw-r--r--stm/boards/stm32f4xx-af.csv142
-rw-r--r--stm/boards/stm32f4xx-prefix.c34
11 files changed, 787 insertions, 0 deletions
diff --git a/stm/boards/NETDUINO_PLUS_2/mpconfigboard.h b/stm/boards/NETDUINO_PLUS_2/mpconfigboard.h
new file mode 100644
index 0000000000..9c407d9cd4
--- /dev/null
+++ b/stm/boards/NETDUINO_PLUS_2/mpconfigboard.h
@@ -0,0 +1,48 @@
+#define NETDUINO_PLUS_2
+
+#define MICROPY_HW_BOARD_NAME "NetduinoPlus2"
+
+#define MICROPY_HW_HAS_SWITCH (1)
+
+// On the netuino, the sdcard appears to be wired up as a 1-bit
+// SPI, so the driver needs to be converted to support that before
+// we can turn this on.
+#define MICROPY_HW_HAS_SDCARD (0)
+#define MICROPY_HW_HAS_MMA7660 (0)
+#define MICROPY_HW_HAS_LIS3DSH (0)
+#define MICROPY_HW_HAS_LCD (0)
+#define MICROPY_HW_HAS_WLAN (0)
+#define MICROPY_HW_ENABLE_RNG (1)
+#define MICROPY_HW_ENABLE_RTC (0)
+#define MICROPY_HW_ENABLE_TIMER (1)
+#define MICROPY_HW_ENABLE_SERVO (1)
+#define MICROPY_HW_ENABLE_AUDIO (0)
+
+#define USRSW_PORT (GPIOB)
+#define USRSW_PIN (GPIO_Pin_11)
+#define USRSW_PUPD (GPIO_PuPd_NOPULL)
+#define USRSW_EXTI_PIN (EXTI_PinSource11)
+#define USRSW_EXTI_PORT (EXTI_PortSourceGPIOB)
+#define USRSW_EXTI_LINE (EXTI_Line11)
+#define USRSW_EXTI_IRQN (EXTI15_10_IRQn)
+#define USRSW_EXTI_EDGE (EXTI_Trigger_Rising)
+
+/* LED */
+#define PYB_LED1_PORT (GPIOA) // Blue LED
+#define PYB_LED1_PIN (GPIO_Pin_10)
+
+#define PYB_LED2_PORT (GPIOC) // White LED (aka Power)
+#define PYB_LED2_PIN (GPIO_Pin_13)
+
+#define PYB_LED3_PORT (GPIOA) // Same as Led(1)
+#define PYB_LED3_PIN (GPIO_Pin_10)
+
+#define PYB_LED4_PORT (GPIOC) // Same as Led(2)
+#define PYB_LED4_PIN (GPIO_Pin_13)
+
+#define PYB_OTYPE (GPIO_OType_PP)
+
+#define PYB_LED_ON(port, pin) (port->BSRRL = pin)
+#define PYB_LED_OFF(port, pin) (port->BSRRH = pin)
+
+#define HSE_VALUE (25000000)
diff --git a/stm/boards/NETDUINO_PLUS_2/pins.csv b/stm/boards/NETDUINO_PLUS_2/pins.csv
new file mode 100644
index 0000000000..f9b94a6c87
--- /dev/null
+++ b/stm/boards/NETDUINO_PLUS_2/pins.csv
@@ -0,0 +1,28 @@
+D0,PC7
+D1,PC6
+D2,PA3
+D3,PA2
+D4,PB12
+D5,PB8
+D6,PB9
+D7,PA1
+D8,PA0
+D9,PA6
+D10,PB10
+D11,PB15
+D12,PB14
+D13,PB13
+A0,PC0
+A1,PC1
+A2,PC2
+A3,PC3
+A4,PC4
+A5,PC5
+LED,PA10
+SW,PB11
+PWR_LED,PC13
+PWR_SD,PB1
+PWR_HDR,PB2
+PWR_ETH,PC15
+RST_ETH,PD2
+
diff --git a/stm/boards/PYBOARD3/mpconfigboard.h b/stm/boards/PYBOARD3/mpconfigboard.h
new file mode 100644
index 0000000000..1632445741
--- /dev/null
+++ b/stm/boards/PYBOARD3/mpconfigboard.h
@@ -0,0 +1,42 @@
+#define PYBOARD3
+
+#define MICROPY_HW_BOARD_NAME "PYBv3"
+
+#define MICROPY_HW_HAS_SWITCH (1)
+#define MICROPY_HW_HAS_SDCARD (1)
+#define MICROPY_HW_HAS_MMA7660 (1)
+#define MICROPY_HW_HAS_LIS3DSH (0)
+#define MICROPY_HW_HAS_LCD (0)
+#define MICROPY_HW_HAS_WLAN (0)
+#define MICROPY_HW_ENABLE_RNG (1)
+#define MICROPY_HW_ENABLE_RTC (1)
+#define MICROPY_HW_ENABLE_TIMER (1)
+#define MICROPY_HW_ENABLE_SERVO (1)
+#define MICROPY_HW_ENABLE_AUDIO (0)
+
+#define USRSW_PORT (GPIOA)
+#define USRSW_PIN (GPIO_Pin_13)
+#define USRSW_PUPD (GPIO_PuPd_UP)
+#define USRSW_EXTI_PIN (EXTI_PinSource13)
+#define USRSW_EXTI_PORT (EXTI_PortSourceGPIOA)
+#define USRSW_EXTI_LINE (EXTI_Line13)
+#define USRSW_EXTI_IRQN (EXTI15_10_IRQn)
+#define USRSW_EXTI_EDGE (EXTI_Trigger_Rising)
+
+/* LED */
+#define PYB_LED1_PORT (GPIOA)
+#define PYB_LED1_PIN (GPIO_Pin_8)
+
+#define PYB_LED2_PORT (GPIOA)
+#define PYB_LED2_PIN (GPIO_Pin_10)
+
+#define PYB_LED3_PORT (GPIOC)
+#define PYB_LED3_PIN (GPIO_Pin_4)
+
+#define PYB_LED4_PORT (GPIOC)
+#define PYB_LED4_PIN (GPIO_Pin_5)
+
+#define PYB_OTYPE (GPIO_OType_OD)
+
+#define PYB_LED_ON(port, pin) (port->BSRRH = pin)
+#define PYB_LED_OFF(port, pin) (port->BSRRL = pin)
diff --git a/stm/boards/PYBOARD3/pins.csv b/stm/boards/PYBOARD3/pins.csv
new file mode 100644
index 0000000000..cc07b15445
--- /dev/null
+++ b/stm/boards/PYBOARD3/pins.csv
@@ -0,0 +1,37 @@
+B13,PB13
+B14,PB14
+B15,PB15
+C6,PC6
+C7,PC7
+A13,PA13
+A14,PA14
+A15,PA15
+B3,PB3
+B4,PB4
+B6,PB6
+B7,PB7
+B8,PB8
+B9,PB9
+C0,PC0
+C1,PC1
+C2,PC2
+C3,PC3
+A0,PA0
+A1,PA1
+A2,PA2
+A3,PA3
+A4,PA4
+A5,PA5
+A6,PA6
+A7,PA7
+B0,PB0
+B1,PB1
+B10,PB10
+B11,PB11
+B12,PB12
+LED_R1,PA8
+LED_R2,PA10
+LED_G1,PC4
+LED_G2,PC5
+SW,PA13
+
diff --git a/stm/boards/PYBOARD4/mpconfigboard.h b/stm/boards/PYBOARD4/mpconfigboard.h
new file mode 100644
index 0000000000..3cb00b4027
--- /dev/null
+++ b/stm/boards/PYBOARD4/mpconfigboard.h
@@ -0,0 +1,42 @@
+#define PYBOARD4
+
+#define MICROPY_HW_BOARD_NAME "PYBv4"
+
+#define MICROPY_HW_HAS_SWITCH (1)
+#define MICROPY_HW_HAS_SDCARD (1)
+#define MICROPY_HW_HAS_MMA7660 (1)
+#define MICROPY_HW_HAS_LIS3DSH (0)
+#define MICROPY_HW_HAS_LCD (1)
+#define MICROPY_HW_HAS_WLAN (0)
+#define MICROPY_HW_ENABLE_RNG (1)
+#define MICROPY_HW_ENABLE_RTC (1)
+#define MICROPY_HW_ENABLE_TIMER (1)
+#define MICROPY_HW_ENABLE_SERVO (1)
+#define MICROPY_HW_ENABLE_AUDIO (0)
+
+#define USRSW_PORT (GPIOB)
+#define USRSW_PIN (GPIO_Pin_3)
+#define USRSW_PUPD (GPIO_PuPd_UP)
+#define USRSW_EXTI_PIN (EXTI_PinSource3)
+#define USRSW_EXTI_PORT (EXTI_PortSourceGPIOB)
+#define USRSW_EXTI_LINE (EXTI_Line3)
+#define USRSW_EXTI_IRQN (EXTI3_IRQn)
+#define USRSW_EXTI_EDGE (EXTI_Trigger_Rising)
+
+/* LED */
+#define PYB_LED1_PORT (GPIOA)
+#define PYB_LED1_PIN (GPIO_Pin_13)
+
+#define PYB_LED2_PORT (GPIOA)
+#define PYB_LED2_PIN (GPIO_Pin_14)
+
+#define PYB_LED3_PORT (GPIOA)
+#define PYB_LED3_PIN (GPIO_Pin_15)
+
+#define PYB_LED4_PORT (GPIOB)
+#define PYB_LED4_PIN (GPIO_Pin_4)
+
+#define PYB_OTYPE (GPIO_OType_PP)
+
+#define PYB_LED_ON(port, pin) (port->BSRRL = pin)
+#define PYB_LED_OFF(port, pin) (port->BSRRH = pin)
diff --git a/stm/boards/PYBOARD4/pins.csv b/stm/boards/PYBOARD4/pins.csv
new file mode 100644
index 0000000000..44166bf7a8
--- /dev/null
+++ b/stm/boards/PYBOARD4/pins.csv
@@ -0,0 +1,45 @@
+X1,PB6
+X2,PB7
+X3,PC4
+X4,PB5
+X5,Reset
+X6,GND
+X7,3.3V
+X8,VIN
+X9,PA0
+X10,PA1
+X11,PA2
+X12,PA3
+X13,PA4
+X14,PA5
+X15,PA6
+X16,PA7
+X17,PB3
+X18,PC13
+X19,PC0
+X20,PC1
+X21,PC2
+X22,PC3
+X23,A3.3V
+X24,AGND
+Y1,PB10
+Y2,PB11
+Y3,PB0
+Y4,PB1
+Y5,Reset
+Y6,GND
+Y7,3.3V
+Y8,VIN
+Y9,PC6
+Y10,PC7
+Y11,PB8
+Y12,PB9
+Y13,PB12
+Y14,PB13
+Y15,PB14
+Y16,PB15
+LED_BLUE,PB4
+LED_RED,PA13
+LED_GREEN,PA14
+LED_YELLOW,PA15
+SW,PB3
diff --git a/stm/boards/STM32F4DISC/mpconfigboard.h b/stm/boards/STM32F4DISC/mpconfigboard.h
new file mode 100644
index 0000000000..2708504cb0
--- /dev/null
+++ b/stm/boards/STM32F4DISC/mpconfigboard.h
@@ -0,0 +1,43 @@
+#define STM32F4DISC
+
+#define MICROPY_HW_BOARD_NAME "F4DISC"
+
+#define MICROPY_HW_HAS_SWITCH (1)
+#define MICROPY_HW_HAS_SDCARD (0)
+#define MICROPY_HW_HAS_MMA7660 (0)
+#define MICROPY_HW_HAS_LIS3DSH (1)
+#define MICROPY_HW_HAS_LCD (0)
+#define MICROPY_HW_HAS_WLAN (0)
+#define MICROPY_HW_ENABLE_RNG (1)
+#define MICROPY_HW_ENABLE_RTC (1)
+#define MICROPY_HW_ENABLE_TIMER (1)
+#define MICROPY_HW_ENABLE_SERVO (0)
+#define MICROPY_HW_ENABLE_AUDIO (0)
+
+#define USRSW_PORT (GPIOA)
+#define USRSW_PIN (GPIO_Pin_0)
+#define USRSW_PUPD (GPIO_PuPd_NOPULL)
+#define USRSW_EXTI_PIN (EXTI_PinSource0)
+#define USRSW_EXTI_PORT (EXTI_PortSourceGPIOA)
+#define USRSW_EXTI_LINE (EXTI_Line0)
+#define USRSW_EXTI_IRQN (EXTI0_IRQn)
+#define USRSW_EXTI_EDGE (EXTI_Trigger_Falling)
+
+/* LED */
+#define PYB_LED1_PORT (GPIOD)
+#define PYB_LED1_PIN (GPIO_Pin_14)
+
+#define PYB_LED2_PORT (GPIOD)
+#define PYB_LED2_PIN (GPIO_Pin_12)
+
+#define PYB_LED3_PORT (GPIOD)
+#define PYB_LED3_PIN (GPIO_Pin_15)
+
+#define PYB_LED4_PORT (GPIOD)
+#define PYB_LED4_PIN (GPIO_Pin_13)
+
+#define PYB_OTYPE (GPIO_OType_PP)
+
+#define PYB_LED_ON(port, pin) (port->BSRRL = pin)
+#define PYB_LED_OFF(port, pin) (port->BSRRH = pin)
+
diff --git a/stm/boards/STM32F4DISC/pins.csv b/stm/boards/STM32F4DISC/pins.csv
new file mode 100644
index 0000000000..4049fef7d9
--- /dev/null
+++ b/stm/boards/STM32F4DISC/pins.csv
@@ -0,0 +1,85 @@
+PC0,PC0
+PC1,PC1
+PC2,PC2
+PC3,PC3
+PA0,PA0
+PA1,PA1
+PA2,PA2
+PA3,PA3
+PA4,PA4
+PA5,PA5
+PA6,PA6
+PA7,PA7
+PC4,PC4
+PC5,PC5
+PB0,PB0
+PB1,PB1
+PB2,PB2
+PE7,PE7
+PE8,PE8
+PE9,PE9
+PE10,PE10
+PE11,PE11
+PE12,PE12
+PE13,PE13
+PE14,PE14
+PE15,PE15
+PB10,PB10
+PB11,PB11
+PB12,PB12
+PB13,PB13
+PB14,PB14
+PB15,PB15
+PD8,PD8
+PD9,PD9
+PD10,PD10
+PD11,PD11
+PD12,PD12
+PD13,PD13
+PD14,PD14
+PD15,PD15
+PC6,PC6
+PC7,PC7
+PC8,PC8
+PC9,PC9
+PA8,PA8
+PA9,PA9
+PA10,PA10
+PA13,PA13
+PA14,PA14
+PA15,PA15
+PC10,PC10
+PC11,PC11
+PC12,PC12
+PD0,PD0
+PD1,PD1
+PD2,PD2
+PD3,PD3
+PD4,PD4
+PD5,PD5
+PD6,PD6
+PD7,PD7
+PB4,PB4
+PB5,PB5
+PB6,PB6
+PB7,PB7
+PB8,PB8
+PB9,PB9
+PE0,PE0
+PE1,PE1
+PE2,PE2
+PE3,PE3
+PE4,PE4
+PE5,PE5
+PE6,PE6
+PC13,PC13
+PC14,PC14
+PC15,PC15
+PH0,PH0
+PH1,PH1
+LED_GREEN,PD12
+LED_ORANGE,PD13
+LED_RED,PD14
+LED_BLUE,PD15
+SW,PA0
+
diff --git a/stm/boards/make-pins.py b/stm/boards/make-pins.py
new file mode 100755
index 0000000000..0bc9118b08
--- /dev/null
+++ b/stm/boards/make-pins.py
@@ -0,0 +1,241 @@
+#!/usr/bin/env python
+"""Creates the pin file for the STM32F4xx."""
+
+from __future__ import print_function
+
+import argparse
+import sys
+import csv
+
+SUPPORTED_FN = {
+ 'TIM' : ['CH1', 'CH2', 'CH3', 'CH4',
+ 'CH1N', 'CH2N', 'CH3N', 'CH1_ETR', 'ETR', 'BKIN'],
+ 'I2C' : ['SDA', 'SCL'],
+ 'USART' : ['RX', 'TX', 'CTS', 'RTS', 'CK'],
+ 'UART' : ['RX', 'TX', 'CTS', 'RTS'],
+ 'SPI' : ['NSS', 'SCK', 'MISO', 'MOSI']
+}
+
+def parse_port_pin(name_str):
+ """Parses a string and returns a (port-num, pin-num) tuple."""
+ if len(name_str) < 3:
+ raise ValueError("Expecting pin name to be at least 3 charcters.")
+ if name_str[0] != 'P':
+ raise ValueError("Expecting pin name to start with P")
+ if name_str[1] < 'A' or name_str[1] > 'J':
+ raise ValueError("Expecting pin port to be between A and J")
+ port = ord(name_str[1]) - ord('A')
+ pin_str = name_str[2:]
+ if not pin_str.isdigit():
+ raise ValueError("Expecting numeric pin number.")
+ return (port, int(pin_str))
+
+def split_name_num(name_num):
+ num = None
+ for num_idx in range(len(name_num) - 1, -1, -1):
+ if not name_num[num_idx].isdigit():
+ name = name_num[0:num_idx + 1]
+ num_str = name_num[num_idx + 1:]
+ if len(num_str) > 0:
+ num = int(num_str)
+ break
+ return name, num
+
+
+class AlternateFunction(object):
+ """Holds the information associated with a pins alternate function."""
+
+ def __init__(self, idx, af_str):
+ self.idx = idx
+ self.af_str = af_str
+
+ self.func = ''
+ self.fn_num = None
+ self.pin_type = ''
+ self.supported = False
+
+ af_words = af_str.split('_', 1)
+ self.func, self.fn_num = split_name_num(af_words[0])
+ if len(af_words) > 1:
+ self.pin_type = af_words[1]
+ if self.func in SUPPORTED_FN:
+ pin_types = SUPPORTED_FN[self.func]
+ if self.pin_type in pin_types:
+ self.supported = True
+
+ def is_supported(self):
+ return self.supported
+
+ def ptr(self):
+ """Returns the numbered function (i.e. USART6) for this AF."""
+ if self.fn_num is None:
+ return self.func
+ return '{:s}{:d}'.format(self.func, self.fn_num)
+
+ def print(self):
+ """Prints the C representation of this AF."""
+ if self.supported:
+ print(' AF', end='')
+ else:
+ print(' //', end='')
+ fn_num = self.fn_num
+ if fn_num is None:
+ fn_num = 0
+ print('({:2d}, {:8s}, {:2d}, {:10s}, {:8s}), // {:s}'.format(self.idx,
+ self.func, fn_num, self.pin_type, self.ptr(), self.af_str))
+
+
+class Pin(object):
+ """Holds the information associated with a pin."""
+
+ def __init__(self, port, pin):
+ self.port = port
+ self.pin = pin
+ self.alt_fn = []
+ self.board_name = None
+ self.alt_fn_count = 0
+
+ def port_letter(self):
+ return chr(self.port + ord('A'))
+
+ def pin_name(self):
+ return '{:s}{:d}'.format(self.port_letter(), self.pin)
+
+ def parse_af(self, af_idx, af_strs_in):
+ if len(af_strs_in) == 0:
+ return
+ # If there is a slash, then the slash separates 2 aliases for the
+ # same alternate function.
+ af_strs = af_strs_in.split('/')
+ for af_str in af_strs:
+ alt_fn = AlternateFunction(af_idx, af_str)
+ self.alt_fn.append(alt_fn)
+ if alt_fn.is_supported():
+ self.alt_fn_count += 1
+
+ def alt_fn_name(self):
+ if self.alt_fn_count > 0:
+ return 'pin_{:s}_af'.format(self.pin_name())
+ return 'NULL'
+
+ def print(self):
+ if self.alt_fn_count == 0:
+ print("// ", end='')
+ print('const pin_af_obj_t {:s}[] = {{'.format(self.alt_fn_name()))
+ for alt_fn in self.alt_fn:
+ alt_fn.print()
+ if self.alt_fn_count == 0:
+ print("// ", end='')
+ print('};')
+ print('')
+ print('const pin_obj_t pin_{:s} = PIN({:s}, {:d}, {:d}, {:s});'.format(
+ self.pin_name(), self.port_letter(), self.pin,
+ self.alt_fn_count, self.alt_fn_name()))
+ print('')
+
+
+class Pins(object):
+
+ def __init__(self):
+ self.pins = []
+ self.board_pins = []
+
+ def find_pin(self, port_num, pin_num):
+ for pin in self.pins:
+ if pin.port == port_num and pin.pin == pin_num:
+ return pin
+
+ def parse_af_file(self, filename, pinname_col, af_col):
+ with open(filename, 'r') as csvfile:
+ rows = csv.reader(csvfile)
+ for row in rows:
+ try:
+ (port_num, pin_num) = parse_port_pin(row[pinname_col])
+ except:
+ continue
+ pin = Pin(port_num, pin_num)
+ for af_idx in range(af_col, len(row)):
+ pin.parse_af(af_idx - af_col, row[af_idx])
+ self.pins.append(pin)
+
+ def parse_board_file(self, filename):
+ with open(filename, 'r') as csvfile:
+ rows = csv.reader(csvfile)
+ for row in rows:
+ try:
+ (port_num, pin_num) = parse_port_pin(row[1])
+ except:
+ continue
+ pin = self.find_pin(port_num, pin_num)
+ if pin:
+ pin.board_name = row[0]
+ self.board_pins.append(pin)
+
+ def print_named(self, label, pins):
+ print('const pin_named_pin_t pin_{:s}_pins[] = {{'.format(label))
+ for pin in pins:
+ if pin.board_name:
+ if label == 'board':
+ pin_name = pin.board_name
+ else:
+ pin_name = pin.pin_name()
+ print(' {{ "{:s}", &pin_{:s} }},'.format(pin_name, pin.pin_name()))
+ print(' { NULL, NULL }')
+ print('};')
+
+ def print(self):
+ for pin in self.pins:
+ if pin.board_name:
+ pin.print()
+ self.print_named('cpu', self.pins)
+ print('')
+ self.print_named('board', self.board_pins)
+
+
+def main():
+ parser = argparse.ArgumentParser(
+ prog="make-pins.py",
+ usage="%(prog)s [options] [command]",
+ description="Generate board specific pin file"
+ )
+ parser.add_argument(
+ "-a", "--af",
+ dest="af_filename",
+ help="Specifies the alternate function file for the chip",
+ default="stm32f4xx-af.csv"
+ )
+ parser.add_argument(
+ "-b", "--board",
+ dest="board_filename",
+ help="Specifies the board file",
+ )
+ parser.add_argument(
+ "-p", "--prefix",
+ dest="prefix_filename",
+ help="Specifies beginning portion of generated pins file",
+ default="stm32f4xx-prefix.c"
+ )
+ args = parser.parse_args(sys.argv[1:])
+
+ pins = Pins()
+
+ print('// This file was automatically generated by make-pins.py')
+ print('//')
+ if args.af_filename:
+ print('// --af {:s}'.format(args.af_filename))
+ pins.parse_af_file(args.af_filename, 1, 2)
+
+ if args.board_filename:
+ print('// --board {:s}'.format(args.board_filename))
+ pins.parse_board_file(args.board_filename)
+
+ if args.prefix_filename:
+ print('// --prefix {:s}'.format(args.prefix_filename))
+ print('')
+ with open(args.prefix_filename, 'r') as prefix_file:
+ print(prefix_file.read())
+ pins.print()
+
+
+if __name__ == "__main__":
+ main()
diff --git a/stm/boards/stm32f4xx-af.csv b/stm/boards/stm32f4xx-af.csv
new file mode 100644
index 0000000000..fde7fcfc11
--- /dev/null
+++ b/stm/boards/stm32f4xx-af.csv
@@ -0,0 +1,142 @@
+Port,,AF0,AF1,AF2,AF3,AF4,AF5,AF6,AF7,AF8,AF9,AF10,AF11,AF12,AF13,AF14,AF15
+,,SYS,TIM1/2,TIM3/4/5,TIM8/9/10/11,I2C1/2/3,SPI1/SPI2/I2S2/I2S2ext,SPI3/I2Sext/I2S3,USART1/2/3/I2S3ext,UART4/5/USART6,CAN1/CAN2/TIM12/13/14,OTG_FS/OTG_HS,ETH,FSMC/SDIO/OTG_FS,DCMI,,
+PortA,PA0,,TIM2_CH1_ETR,TIM5_CH1,TIM8_ETR,,,,USART2_CTS,UART4_TX,,,ETH_MII_CRS,,,,EVENTOUT
+PortA,PA1,,TIM2_CH2,TIM5_CH2,,,,,USART2_RTS,UART4_RX,,,ETH_MII_RX_CLK/ETH_RMII__REF_CLK,,,,EVENTOUT
+PortA,PA2,,TIM2_CH3,TIM5_CH3,TIM9_CH1,,,,USART2_TX,,,,ETH_MDIO,,,,EVENTOUT
+PortA,PA3,,TIM2_CH4,TIM5_CH4,TIM9_CH2,,,,USART2_RX,,,OTG_HS_ULPI_D0,ETH_MII_COL,,,,EVENTOUT
+PortA,PA4,,,,,,SPI1_NSS,SPI3_NSS/I2S3_WS,USART2_CK,,,,,OTG_HS_SOF,DCMI_HSYNC,,EVENTOUT
+PortA,PA5,,TIM2_CH1_ETR,,TIM8_CH1N,,SPI1_SCK,,,,,OTG_HS_ULPI_CK,,,,,EVENTOUT
+PortA,PA6,,TIM1_BKIN,TIM3_CH1,TIM8_BKIN,,SPI1_MISO,,,,TIM13_CH1,,,,DCMI_PIXCK,,EVENTOUT
+PortA,PA7,,TIM1_CH1N,TIM3_CH2,TIM8_CH1N,,SPI1_MOSI,,,,TIM14_CH1,,ETH_MII_RX_DV/ETH_RMII_CRS_DV,,,,EVENTOUT
+PortA,PA8,MCO1,TIM1_CH1,,,I2C3_SCL,,,USART1_CK,,,OTG_FS_SOF,,,,,EVENTOUT
+PortA,PA9,,TIM1_CH2,,,I2C3_SMBA,,,USART1_TX,,,,,,DCMI_D0,,EVENTOUT
+PortA,PA10,,TIM1_CH3,,,,,,USART1_RX,,,OTG_FS_ID,,,DCMI_D1,,EVENTOUT
+PortA,PA11,,TIM1_CH4,,,,,,USART1_CTS,,CAN1_RX,OTG_FS_DM,,,,,EVENTOUT
+PortA,PA12,,TIM1_ETR,,,,,,USART1_RTS,,CAN1_TX,OTG_FS_DP,,,,,EVENTOUT
+PortA,PA13,JTMS-SWDIO,,,,,,,,,,,,,,,EVENTOUT
+PortA,PA14,JTCK-SWCLK,,,,,,,,,,,,,,,EVENTOUT
+PortA,PA15,JTDI,TIM2_CH1/TIM2_ETR,,,,SPI1_NSS,SPI3_NSS/I2S3_WS,,,,,,,,,EVENTOUT
+PortB,PB0,,TIM1_CH2N,TIM3_CH3,TIM8_CH2N,,,,,,,OTG_HS_ULPI_D1,ETH_MII_RXD2,,,,EVENTOUT
+PortB,PB1,,TIM1_CH3N,TIM3_CH4,TIM8_CH3N,,,,,,,OTG_HS_ULPI_D2,ETH_MII_RXD3,,,,EVENTOUT
+PortB,PB2,,,,,,,,,,,,,,,,EVENTOUT
+PortB,PB3,JTDO/TRACESWO,TIM2_CH2,,,,SPI1_SCK,SPI3_SCKI2S3_CK,,,,,,,,,EVENTOUT
+PortB,PB4,NJTRST,,TIM3_CH1,,,SPI1_MISO,SPI3_MISO,I2S3ext_SD,,,,,,,,EVENTOUT
+PortB,PB5,,,TIM3_CH2,,I2C1_SMBA,SPI1_MOSI,SPI3_MOSI/I2S3_SD,,,CAN2_RX,OTG_HS_ULPI_D7,ETH_PPS_OUT,,DCMI_D10,,EVENTOUT
+PortB,PB6,,,TIM4_CH1,,I2C1_SCL,,,USART1_TX,,CAN2_TX,,,,DCMI_D5,,EVENTOUT
+PortB,PB7,,,TIM4_CH2,,I2C1_SDA,,,USART1_RX,,,,,FSMC_NL,DCMI_VSYNC,,EVENTOUT
+PortB,PB8,,,TIM4_CH3,TIM10_CH1,I2C1_SCL,,,,,CAN1_RX,,ETH_MII_TXD3,SDIO_D4,DCMI_D6,,EVENTOUT
+PortB,PB9,,,TIM4_CH4,TIM11_CH1,I2C1_SDA,SPI2_NSS/I2S2_WS,,,,CAN1_TX,,,SDIO_D5,DCMI_D7,,EVENTOUT
+PortB,PB10,,TIM2_CH3,,,I2C2_SCL,SPI2_SCKI2S2_CK,,USART3_TX,,,OTG_HS_ULPI_D3,ETH_MII_RX_ER,,,,EVENTOUT
+PortB,PB11,,TIM2_CH4,,,I2C2_SDA,,,USART3_RX,,,OTG_HS_ULPI_D4,ETH_MII_TX_EN/ETH_RMII_TX_EN,,,,EVENTOUT
+PortB,PB12,,TIM1_BKIN,,,I2C2_SMBA,SPI2_NSS/I2S2_WS,,USART3_CK,,CAN2_RX,OTG_HS_ULPI_D5,ETH_MII_TXD0/ETH_RMII_TXD0,OTG_HS_ID,,,EVENTOUT
+PortB,PB13,,TIM1_CH1N,,,,SPI2_SCKI2S2_CK,,USART3_CTS,,CAN2_TX,OTG_HS_ULPI_D6,ETH_MII_TXD1/ETH_RMII_TXD1,,,,EVENTOUT
+PortB,PB14,,TIM1_CH2N,,TIM8_CH2N,,SPI2_MISO,I2S2ext_SD,USART3_RTS,,TIM12_CH1,,,OTG_HS_DM,,,EVENTOUT
+PortB,PB15,RTC_REFIN,TIM1_CH3N,,TIM8_CH3N,,SPI2_MOSI/I2S2_SD,,,,TIM12_CH2,,,OTG_HS_DP,,,EVENTOUT
+PortC,PC0,,,,,,,,,,,OTG_HS_ULPI_STP,,,,,EVENTOUT
+PortC,PC1,,,,,,,,,,,,ETH_MDC,,,,EVENTOUT
+PortC,PC2,,,,,,SPI2_MISO,I2S2ext_SD,,,,OTG_HS_ULPI_DIR,ETH_MII_TXD2,,,,EVENTOUT
+PortC,PC3,,,,,,SPI2_MOSI/I2S2_SD,,,,,OTG_HS_ULPI_NXT,ETH_MII_TX_CLK,,,,EVENTOUT
+PortC,PC4,,,,,,,,,,,,ETH_MII_RXD0/ETH_RMII_RXD0,,,,EVENTOUT
+PortC,PC5,,,,,,,,,,,,ETH_MII_RXD1/ETH_RMII_RXD1,,,,EVENTOUT
+PortC,PC6,,,TIM3_CH1,TIM8_CH1,,I2S2_MCK,,,USART6_TX,,,,SDIO_D6,DCMI_D0,,EVENTOUT
+PortC,PC7,,,TIM3_CH2,TIM8_CH2,,,I2S3_MCK,,USART6_RX,,,,SDIO_D7,DCMI_D1,,EVENTOUT
+PortC,PC8,,,TIM3_CH3,TIM8_CH3,,,,,USART6_CK,,,,SDIO_D0,DCMI_D2,,EVENTOUT
+PortC,PC9,MCO2,,TIM3_CH4,TIM8_CH4,I2C3_SDA,I2S_CKIN,,,,,,,SDIO_D1,DCMI_D3,,EVENTOUT
+PortC,PC10,,,,,,,SPI3_SCK/I2S3_CK,USART3_TX,UART4_TX,,,,SDIO_D2,DCMI_D8,,EVENTOUT
+PortC,PC11,,,,,,I2S3ext_SD,SPI3_MISO,USART3_RX,UART4_RX,,,,SDIO_D3,DCMI_D4,,EVENTOUT
+PortC,PC12,,,,,,,SPI3_MOSI/I2S3_SD,USART3_CK,UART5_TX,,,,SDIO_CK,DCMI_D9,,EVENTOUT
+PortC,PC13,,,,,,,,,,,,,,,,EVENTOUT
+PortC,PC14,,,,,,,,,,,,,,,,EVENTOUT
+PortC,PC15,,,,,,,,,,,,,,,,EVENTOUT
+PortD,PD0,,,,,,,,,,CAN1_RX,,,FSMC_D2,,,EVENTOUT
+PortD,PD1,,,,,,,,,,CAN1_TX,,,FSMC_D3,,,EVENTOUT
+PortD,PD2,,,TIM3_ETR,,,,,,UART5_RX,,,,SDIO_CMD,DCMI_D11,,EVENTOUT
+PortD,PD3,,,,,,,,USART2_CTS,,,,,FSMC_CLK,,,EVENTOUT
+PortD,PD4,,,,,,,,USART2_RTS,,,,,FSMC_NOE,,,EVENTOUT
+PortD,PD5,,,,,,,,USART2_TX,,,,,FSMC_NWE,,,EVENTOUT
+PortD,PD6,,,,,,,,USART2_RX,,,,,FSMC_NWAIT,,,EVENTOUT
+PortD,PD7,,,,,,,,USART2_CK,,,,,FSMC_NE1/FSMC_NCE2,,,EVENTOUT
+PortD,PD8,,,,,,,,USART3_TX,,,,,FSMC_D13,,,EVENTOUT
+PortD,PD9,,,,,,,,USART3_RX,,,,,FSMC_D14,,,EVENTOUT
+PortD,PD10,,,,,,,,USART3_CK,,,,,FSMC_D15,,,EVENTOUT
+PortD,PD11,,,,,,,,USART3_CTS,,,,,FSMC_A16,,,EVENTOUT
+PortD,PD12,,,TIM4_CH1,,,,,USART3_RTS,,,,,FSMC_A17,,,EVENTOUT
+PortD,PD13,,,TIM4_CH2,,,,,,,,,,FSMC_A18,,,EVENTOUT
+PortD,PD14,,,TIM4_CH3,,,,,,,,,,FSMC_D0,,,EVENTOUT
+PortD,PD15,,,TIM4_CH4,,,,,,,,,,FSMC_D1,,,EVENTOUT
+PortE,PE0,,,TIM4_ETR,,,,,,,,,,FSMC_NBL0,DCMI_D2,,EVENTOUT
+PortE,PE1,,,,,,,,,,,,,FSMC_NBL1,DCMI_D3,,EVENTOUT
+PortE,PE2,TRACECLK,,,,,,,,,,,ETH_MII_TXD3,FSMC_A23,,,EVENTOUT
+PortE,PE3,TRACED0,,,,,,,,,,,,FSMC_A19,,,EVENTOUT
+PortE,PE4,TRACED1,,,,,,,,,,,,FSMC_A20,DCMI_D4,,EVENTOUT
+PortE,PE5,TRACED2,,,TIM9_CH1,,,,,,,,,FSMC_A21,DCMI_D6,,EVENTOUT
+PortE,PE6,TRACED3,,,TIM9_CH2,,,,,,,,,FSMC_A22,DCMI_D7,,EVENTOUT
+PortE,PE7,,TIM1_ETR,,,,,,,,,,,FSMC_D4,,,EVENTOUT
+PortE,PE8,,TIM1_CH1N,,,,,,,,,,,FSMC_D5,,,EVENTOUT
+PortE,PE9,,TIM1_CH1,,,,,,,,,,,FSMC_D6,,,EVENTOUT
+PortE,PE10,,TIM1_CH2N,,,,,,,,,,,FSMC_D7,,,EVENTOUT
+PortE,PE11,,TIM1_CH2,,,,,,,,,,,FSMC_D8,,,EVENTOUT
+PortE,PE12,,TIM1_CH3N,,,,,,,,,,,FSMC_D9,,,EVENTOUT
+PortE,PE13,,TIM1_CH3,,,,,,,,,,,FSMC_D10,,,EVENTOUT
+PortE,PE14,,TIM1_CH4,,,,,,,,,,,FSMC_D11,,,EVENTOUT
+PortE,PE15,,TIM1_BKIN,,,,,,,,,,,FSMC_D12,,,EVENTOUT
+PortF,PF0,,,,,I2C2_SDA,,,,,,,,FSMC_A0,,,EVENTOUT
+PortF,PF1,,,,,I2C2_SCL,,,,,,,,FSMC_A1,,,EVENTOUT
+PortF,PF2,,,,,I2C2_SMBA,,,,,,,,FSMC_A2,,,EVENTOUT
+PortF,PF3,,,,,,,,,,,,,FSMC_A3,,,EVENTOUT
+PortF,PF4,,,,,,,,,,,,,FSMC_A4,,,EVENTOUT
+PortF,PF5,,,,,,,,,,,,,FSMC_A5,,,EVENTOUT
+PortF,PF6,,,,TIM10_CH1,,,,,,,,,FSMC_NIORD,,,EVENTOUT
+PortF,PF7,,,,TIM11_CH1,,,,,,,,,FSMC_NREG,,,EVENTOUT
+PortF,PF8,,,,,,,,,,TIM13_CH1,,,FSMC_NIOWR,,,EVENTOUT
+PortF,PF9,,,,,,,,,,TIM14_CH1,,,FSMC_CD,,,EVENTOUT
+PortF,PF10,,,,,,,,,,,,,FSMC_INTR,,,EVENTOUT
+PortF,PF11,,,,,,,,,,,,,,DCMI_D12,,EVENTOUT
+PortF,PF12,,,,,,,,,,,,,FSMC_A6,,,EVENTOUT
+PortF,PF13,,,,,,,,,,,,,FSMC_A7,,,EVENTOUT
+PortF,PF14,,,,,,,,,,,,,FSMC_A8,,,EVENTOUT
+PortF,PF15,,,,,,,,,,,,,FSMC_A9,,,EVENTOUT
+PortG,PG0,,,,,,,,,,,,,FSMC_A10,,,EVENTOUT
+PortG,PG1,,,,,,,,,,,,,FSMC_A11,,,EVENTOUT
+PortG,PG2,,,,,,,,,,,,,FSMC_A12,,,EVENTOUT
+PortG,PG3,,,,,,,,,,,,,FSMC_A13,,,EVENTOUT
+PortG,PG4,,,,,,,,,,,,,FSMC_A14,,,EVENTOUT
+PortG,PG5,,,,,,,,,,,,,FSMC_A15,,,EVENTOUT
+PortG,PG6,,,,,,,,,,,,,FSMC_INT2,,,EVENTOUT
+PortG,PG7,,,,,,,,,USART6_CK,,,,FSMC_INT3,,,EVENTOUT
+PortG,PG8,,,,,,,,,USART6_RTS,,,ETH_PPS_OUT,,,,EVENTOUT
+PortG,PG9,,,,,,,,,USART6_RX,,,,FSMC_NE2/FSMC_NCE3,,,EVENTOUT
+PortG,PG10,,,,,,,,,,,,,FSMC_NCE4_1/FSMC_NE3,,,EVENTOUT
+PortG,PG11,,,,,,,,,,,,ETH_MII_TX_EN/ETH_RMII_TX_EN,FSMC_NCE4_2,,,EVENTOUT
+PortG,PG12,,,,,,,,,USART6_RTS,,,,FSMC_NE4,,,EVENTOUT
+PortG,PG13,,,,,,,,,USART6_CTS,,,ETH_MII_TXD0/ETH_RMII_TXD0,FSMC_A24,,,EVENTOUT
+PortG,PG14,,,,,,,,,USART6_TX,,,ETH_MII_TXD1/ETH_RMII_TXD1,FSMC_A25,,,EVENTOUT
+PortG,PG15,,,,,,,,,USART6_CTS,,,,,DCMI_D13,,EVENTOUT
+PortH,PH0,,,,,,,,,,,,,,,,EVENTOUT
+PortH,PH1,,,,,,,,,,,,,,,,EVENTOUT
+PortH,PH2,,,,,,,,,,,,ETH_MII_CRS,,,,EVENTOUT
+PortH,PH3,,,,,,,,,,,,ETH_MII_COL,,,,EVENTOUT
+PortH,PH4,,,,,I2C2_SCL,,,,,,OTG_HS_ULPI_NXT,,,,,EVENTOUT
+PortH,PH5,,,,,I2C2_SDA,,,,,,,,,,,EVENTOUT
+PortH,PH6,,,,,I2C2_SMBA,,,,,TIM12_CH1,,ETH_MII_RXD2,,,,EVENTOUT
+PortH,PH7,,,,,I2C3_SCL,,,,,,,ETH_MII_RXD3,,,,EVENTOUT
+PortH,PH8,,,,,I2C3_SDA,,,,,,,,,DCMI_HSYNC,,EVENTOUT
+PortH,PH9,,,,,I2C3_SMBA,,,,,TIM12_CH2,,,,DCMI_D0,,EVENTOUT
+PortH,PH10,,,TIM5_CH1,,,,,,,,,,,DCMI_D1,,EVENTOUT
+PortH,PH11,,,TIM5_CH2,,,,,,,,,,,DCMI_D2,,EVENTOUT
+PortH,PH12,,,TIM5_CH3,,,,,,,,,,,DCMI_D3,,EVENTOUT
+PortH,PH13,,,,TIM8_CH1N,,,,,,CAN1_TX,,,,,,EVENTOUT
+PortH,PH14,,,,TIM8_CH2N,,,,,,,,,,DCMI_D4,,EVENTOUT
+PortH,PH15,,,,TIM8_CH3N,,,,,,,,,,DCMI_D11,,EVENTOUT
+PortI,PI0,,,TIM5_CH4,,,SPI2_NSS/I2S2_WS,,,,,,,,DCMI_D13,,EVENTOUT
+PortI,PI1,,,,,,SPI2_SCKI2S2_CK,,,,,,,,DCMI_D8,,EVENTOUT
+PortI,PI2,,,,TIM8_CH4,,SPI2_MISO,I2S2ext_SD,,,,,,,DCMI_D9,,EVENTOUT
+PortI,PI3,,,,TIM8_ETR,,SPI2_MOSI/I2S2_SD,,,,,,,,DCMI_D10,,EVENTOUT
+PortI,PI4,,,,TIM8_BKIN,,,,,,,,,,DCMI_D5,,EVENTOUT
+PortI,PI5,,,,TIM8_CH1,,,,,,,,,,DCMI_VSYNC,,EVENTOUT
+PortI,PI6,,,,TIM8_CH2,,,,,,,,,,DCMI_D6,,EVENTOUT
+PortI,PI7,,,,TIM8_CH3,,,,,,,,,,DCMI_D7,,EVENTOUT
+PortI,PI8,,,,,,,,,,,,,,,,EVENTOUT
+PortI,PI9,,,,,,,,,,CAN1_RX,,,,,,EVENTOUT
+PortI,PI10,,,,,,,,,,,,ETH_MII_RX_ER,,,,EVENTOUT
+PortI,PI11,,,,,,,,,,,OTG_HS_ULPI_DIR,,,,,EVENTOUT
diff --git a/stm/boards/stm32f4xx-prefix.c b/stm/boards/stm32f4xx-prefix.c
new file mode 100644
index 0000000000..e68de4cf4e
--- /dev/null
+++ b/stm/boards/stm32f4xx-prefix.c
@@ -0,0 +1,34 @@
+// stm32fxx-prefix.c becomes the initial portion of the generated pins file.
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stm32f4xx.h>
+
+#include "misc.h"
+#include "mpconfig.h"
+#include "qstr.h"
+#include "obj.h"
+
+#include "pin.h"
+
+#define AF(af_idx, af_fn, af_unit, af_type, af_ptr) \
+{ \
+ { &pin_af_obj_type }, \
+ .idx = (af_idx), \
+ .fn = AF_FN_ ## af_fn, \
+ .unit = (af_unit), \
+ .type = AF_PIN_TYPE_ ## af_fn ## _ ## af_type, \
+ .af_fn = (af_ptr) \
+}
+
+#define PIN(p_port, p_pin, p_num_af, p_af) \
+{ \
+ { &pin_obj_type }, \
+ .name = #p_port #p_pin, \
+ .port = PORT_ ## p_port, \
+ .pin = (p_pin), \
+ .num_af = (p_num_af), \
+ .pin_mask = (1 << ((p_pin) & 0x0f)), \
+ .gpio = GPIO ## p_port, \
+ .af = p_af, \
+}