Skip to content

Commit 3f30641

Browse files
fpistmfpistm
authored
Merge pull request #208 from fpistm/arduino_compatibility_pin_140
[Arduino compatibility] Ax pin definition
2 parents 113f9e6 + c4c9f48 commit 3f30641

File tree

26 files changed

+337
-435
lines changed

26 files changed

+337
-435
lines changed

‎cores/arduino/Arduino.h‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -45,6 +45,6 @@ void yield(void);
4545
#endif // __cplusplus
4646

4747
// Include pins variant
48-
#include "pins_arduino_var.h"
48+
#include "pins_arduino.h"
4949

5050
#endif // Arduino_h

‎cores/arduino/pins_arduino.c‎

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -17,7 +17,6 @@
1717
*/
1818

1919
#include "pins_arduino.h"
20-
#include "pins_arduino_var.h"
2120

2221
#ifdef __cplusplus
2322
extern "C" {

‎cores/arduino/pins_arduino.h‎

Lines changed: 230 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -17,10 +17,13 @@
1717
*/
1818
#ifndef _PINS_ARDUINO_H_
1919
#define _PINS_ARDUINO_H_
20+
// Include board variant
21+
#include "variant.h"
2022

21-
#include "PeripheralPins.h"
23+
// Avoid pins number misalignment
24+
_Static_assert(NUM_DIGITAL_PINS==PEND, "NUM_DIGITAL_PINS and PEND differ!");
2225

23-
// Arduino digital pin alias
26+
// Arduino digital pins alias
2427
// GPIO port (A to K) * 16 pins: 176
2528
enum {
2629
D0, D1, D2, D3, D4, D5, D6, D7, D8, D9,
@@ -44,4 +47,229 @@ enum {
4447
DMAX
4548
};
4649

50+
// Arduino analog pins
51+
// Analog pins must be contiguous to be able to loop on each value
52+
#define MAX_ANALOG_INPUTS 20
53+
_Static_assert(NUM_ANALOG_INPUTS <= MAX_ANALOG_INPUTS, "Core NUM_ANALOG_INPUTS limited to MAX_ANALOG_INPUTS" );
54+
55+
// Defined for backward compatibility with Firmata which unfortunately use it
56+
#define AEND (NUM_ANALOG_FIRST+NUM_ANALOG_INPUTS)
57+
58+
#if NUM_ANALOG_INPUTS > 0
59+
#define PIN_A0 NUM_ANALOG_FIRST
60+
static const uint8_t A0 = PIN_A0;
61+
#endif
62+
#if NUM_ANALOG_INPUTS > 1
63+
#define PIN_A1 (PIN_A0 + 1)
64+
static const uint8_t A1 = PIN_A1;
65+
#endif
66+
#if NUM_ANALOG_INPUTS > 2
67+
#define PIN_A2 (PIN_A1 + 1)
68+
static const uint8_t A2 = PIN_A2;
69+
#endif
70+
#if NUM_ANALOG_INPUTS > 3
71+
#define PIN_A3 (PIN_A2 + 1)
72+
static const uint8_t A3 = PIN_A3;
73+
#endif
74+
#if NUM_ANALOG_INPUTS > 4
75+
#define PIN_A4 (PIN_A3 + 1)
76+
static const uint8_t A4 = PIN_A4;
77+
#endif
78+
#if NUM_ANALOG_INPUTS > 5
79+
#define PIN_A5 (PIN_A4 + 1)
80+
static const uint8_t A5 = PIN_A5;
81+
#endif
82+
#if NUM_ANALOG_INPUTS > 6
83+
#define PIN_A6 (PIN_A5 + 1)
84+
static const uint8_t A6 = PIN_A6;
85+
#endif
86+
#if NUM_ANALOG_INPUTS > 7
87+
#define PIN_A7 (PIN_A6 + 1)
88+
static const uint8_t A7 = PIN_A7;
89+
#endif
90+
#if NUM_ANALOG_INPUTS > 8
91+
#define PIN_A8 (PIN_A7 + 1)
92+
static const uint8_t A8 = PIN_A8;
93+
#endif
94+
#if NUM_ANALOG_INPUTS > 9
95+
#define PIN_A9 (PIN_A8 + 1)
96+
static const uint8_t A9 = PIN_A9;
97+
#endif
98+
#if NUM_ANALOG_INPUTS > 10
99+
#define PIN_A10 (PIN_A9 + 1)
100+
static const uint8_t A10 = PIN_A10;
101+
#endif
102+
#if NUM_ANALOG_INPUTS > 11
103+
#define PIN_A11 (PIN_A10 + 1)
104+
static const uint8_t A11 = PIN_A11;
105+
#endif
106+
#if NUM_ANALOG_INPUTS > 12
107+
#define PIN_A12 (PIN_A11 + 1)
108+
static const uint8_t A12 = PIN_A12;
109+
#endif
110+
#if NUM_ANALOG_INPUTS > 13
111+
#define PIN_A13 (PIN_A12 + 1)
112+
static const uint8_t A13 = PIN_A13;
113+
#endif
114+
#if NUM_ANALOG_INPUTS > 14
115+
#define PIN_A14 (PIN_A13 + 1)
116+
static const uint8_t A14 = PIN_A14;
117+
#endif
118+
#if NUM_ANALOG_INPUTS > 15
119+
#define PIN_A15 (PIN_A14 + 1)
120+
static const uint8_t A15 = PIN_A15;
121+
#endif
122+
#if NUM_ANALOG_INPUTS > 16
123+
#define PIN_A16 (PIN_A15 + 1)
124+
static const uint8_t A16 = PIN_A16;
125+
#endif
126+
#if NUM_ANALOG_INPUTS > 17
127+
#define PIN_A17 (PIN_A16 + 1)
128+
static const uint8_t A17 = PIN_A17;
129+
#endif
130+
#if NUM_ANALOG_INPUTS > 18
131+
#define PIN_A18 (PIN_A17 + 1)
132+
static const uint8_t A18 = PIN_A18;
133+
#endif
134+
#if NUM_ANALOG_INPUTS > 19
135+
#define PIN_A19 (PIN_A18 + 1)
136+
static const uint8_t A19 = PIN_A19;
137+
#endif
138+
139+
// Default for Arduino connector compatibility
140+
// SPI Definitions
141+
#ifndef PIN_SPI_SS
142+
#define PIN_SPI_SS 10
143+
#endif
144+
#ifndef PIN_SPI_SS1
145+
#define PIN_SPI_SS1 4
146+
#endif
147+
#ifndef PIN_SPI_SS2
148+
#define PIN_SPI_SS2 7
149+
#endif
150+
#ifndef PIN_SPI_SS3
151+
#define PIN_SPI_SS3 8
152+
#endif
153+
#ifndef PIN_SPI_MOSI
154+
#define PIN_SPI_MOSI 11
155+
#endif
156+
#ifndef PIN_SPI_MISO
157+
#define PIN_SPI_MISO 12
158+
#endif
159+
#ifndef PIN_SPI_SCK
160+
#define PIN_SPI_SCK 13
161+
#endif
162+
163+
static const uint8_t SS = PIN_SPI_SS;
164+
static const uint8_t SS1 = PIN_SPI_SS1;
165+
static const uint8_t SS2 = PIN_SPI_SS2;
166+
static const uint8_t SS3 = PIN_SPI_SS3;
167+
static const uint8_t MOSI = PIN_SPI_MOSI;
168+
static const uint8_t MISO = PIN_SPI_MISO;
169+
static const uint8_t SCK = PIN_SPI_SCK;
170+
171+
// I2C Definitions
172+
#ifndef PIN_WIRE_SDA
173+
#define PIN_WIRE_SDA 14
174+
#endif
175+
#ifndef PIN_WIRE_SCL
176+
#define PIN_WIRE_SCL 15
177+
#endif
178+
179+
static const uint8_t SDA = PIN_WIRE_SDA;
180+
static const uint8_t SCL = PIN_WIRE_SCL;
181+
182+
#ifdef __cplusplus
183+
extern "C" {
184+
#endif
185+
186+
#define NOT_AN_INTERRUPT NC // -1
187+
188+
// Convert a digital pin number Dxx to a PinName PX_n
189+
// Note: Analog pin is also a digital pin.
190+
#define digitalPinToPinName(p) (((uint32_t)p < NUM_DIGITAL_PINS) ? digitalPin[p] : NC)
191+
// Convert a PinName PX_n to a digital pin number
192+
uint32_t pinNametoDigitalPin(PinName p);
193+
194+
// Convert an analog pin number to a digital pin number
195+
// Used by analogRead api to have A0 == 0
196+
#define analogInputToDigitalPin(p) (((uint32_t)p < NUM_ANALOG_INPUTS) ? (p+A0) : p)
197+
// Convert an analog pin number Axx to a PinName PX_n
198+
#define analogInputToPinName(p) (digitalPinToPinName(analogInputToDigitalPin(p)))
199+
// All pins could manage EXTI
200+
#define digitalPinToInterrupt(p) (digitalPinIsValid(p) ? p : NOT_AN_INTERRUPT)
201+
202+
#define digitalPinHasI2C(p) (pin_in_pinmap(digitalPinToPinName(p), PinMap_I2C_SDA) ||\
203+
pin_in_pinmap(digitalPinToPinName(p), PinMap_I2C_SCL))
204+
#define digitalPinHasPWM(p) (pin_in_pinmap(digitalPinToPinName(p), PinMap_PWM))
205+
#define digitalPinHasSerial(p) (pin_in_pinmap(digitalPinToPinName(p), PinMap_UART_RX) ||\
206+
pin_in_pinmap(digitalPinToPinName(p), PinMap_UART_TX))
207+
#define digitalPinHasSPI(p) (pin_in_pinmap(digitalPinToPinName(p), PinMap_SPI_MOSI) ||\
208+
pin_in_pinmap(digitalPinToPinName(p), PinMap_SPI_MISO) ||\
209+
pin_in_pinmap(digitalPinToPinName(p), PinMap_SPI_SCLK) ||\
210+
pin_in_pinmap(digitalPinToPinName(p), PinMap_SPI_SSEL))
211+
212+
213+
#define digitalPinToPort(p) (get_GPIO_Port(STM_PORT(digitalPinToPinName(p))))
214+
#define digitalPinToBitMask(p) (STM_GPIO_PIN(digitalPinToPinName(p)))
215+
216+
#define analogInPinToBit(p) (STM_PIN(digitalPinToPinName(p)))
217+
#define portOutputRegister(P) (&(P->ODR))
218+
#define portInputRegister(P) (&(P->IDR))
219+
220+
#define portSetRegister(P) (&(P->BSRR))
221+
#if defined(STM32F2xx) || defined(STM32F4xx) || defined(STM32F7xx)
222+
// For those series reset are in the high part so << 16U needed
223+
#define portClearRegister(P) (&(P->BSRR))
224+
#else
225+
#define portClearRegister(P) (&(P->BRR))
226+
#endif
227+
228+
229+
#if defined(STM32F1xx)
230+
// Config registers split in 2 registers:
231+
// CRL: pin 0..7
232+
// CRH: pin 8..15
233+
// Return only CRL
234+
#define portModeRegister(P) (&(P->CRL))
235+
#else
236+
#define portModeRegister(P) (&(P->MODER))
237+
#endif
238+
#define portConfigRegister(P) (portModeRegister(P))
239+
240+
241+
#define digitalPinIsValid(p) (digitalPinToPinName(p) != NC)
242+
243+
// As some pin could be duplicated in digitalPin[]
244+
// return first occurence of linked PinName (PYx)
245+
#define digitalPinFirstOccurence(p) (pinNametoDigitalPin(digitalPinToPinName(p)))
246+
247+
// Specific for Firmata. As some pins could be duplicated,
248+
// ensure 'p' is not one of the serial pins
249+
#if defined(PIN_SERIAL_RX) && defined(PIN_SERIAL_TX)
250+
#define pinIsSerial(p) ((digitalPinFirstOccurence(p) == PIN_SERIAL_RX) ||\
251+
(digitalPinFirstOccurence(p) == PIN_SERIAL_TX))
252+
#endif
253+
254+
#ifdef __cplusplus
255+
}
256+
#endif
257+
258+
// Default Definitions, could be redefined in variant.h
259+
#ifndef ADC_RESOLUTION
260+
#define ADC_RESOLUTION 12
261+
#endif
262+
#ifndef DACC_RESOLUTION
263+
#define DACC_RESOLUTION 12
264+
#endif
265+
#ifndef PWM_RESOLUTION
266+
#define PWM_RESOLUTION 8
267+
#endif
268+
#ifndef PWM_FREQUENCY
269+
#define PWM_FREQUENCY 1000
270+
#endif
271+
#ifndef PWM_MAX_DUTY_CYCLE
272+
#define PWM_MAX_DUTY_CYCLE 255
273+
#endif
274+
47275
#endif /*_PINS_ARDUINO_H_*/

0 commit comments

Comments
 (0)