OLIMEXINO - Initial support for the OLIMEXINO board.

PWM and ADC configuration is the same as the naze32 for now.  Requires an accelerometer is connected via I2C2.

I2C signals SDA2 and SCL2 are on the UEXT header (Pins 6 and 5 respectively)
USART signals TX and RX are on the CON3/CON4 headers (TX = D7, RX = D8)

Onboard LEDs (LED1/LED2) working.
Buzzer support removed for now as it conflicted with PWM map and LEDs.
mma845x support disabled as it conflicted with an LED.
Relocated some NAZE specific comments.

Disabling PWM2 as an input as it conflicts with the yellow onboard LED2.

Makefile

@@ -14,7 +14,7 @@
 # Things that the user might override on the commandline
 #
 
-# The target to build, must be one of NAZE or FY90Q
+# The target to build, must be one of NAZE, FY90Q OR OLIMEXINO
 TARGET		?= NAZE
 
 # Compile-time options
@@ -24,7 +24,7 @@ OPTIONS		?=
 # Things that need to be maintained as the source changes
 #
 
-VALID_TARGETS	 = NAZE FY90Q
+VALID_TARGETS	 = NAZE FY90Q OLIMEXINO
 
 # Working directories
 ROOT		 = $(dir $(lastword $(MAKEFILE_LIST)))
@@ -76,6 +76,15 @@ FY90Q_SRC	 = drv_adc_fy90q.c \
 		   drv_pwm_fy90q.c \
 		   $(COMMON_SRC)
 
+# Source files for the OLIMEXINO target
+OLIMEXINO_SRC	 = drv_adc.c \
+		   drv_adxl345.c \
+		   drv_mpu3050.c \
+		   drv_mpu6050.c \
+		   drv_l3g4200d.c \
+		   drv_pwm.c \
+		   $(COMMON_SRC)
+
 # Search path for baseflight sources
 VPATH		:= $(SRC_DIR):$(SRC_DIR)/baseflight_startups
 

src/board.h

@@ -112,14 +112,34 @@ typedef struct baro_t
 #define GYRO
 #define ACC
 
-#else
+#define SENSORS_SET (SENSOR_ACC)
+
+#endif
+
+#ifdef OLIMEXINO
+// OLIMEXINO
+
+// LED2 is using one of the pwm pins (PWM2), so we must not use PWM2.  @See pwmInit()
+#define LED0_GPIO   GPIOA
+#define LED0_PIN    GPIO_Pin_1 // D3, PA1/USART2_RTS/ADC1/TIM2_CH3 - "LED2" on silkscreen, Yellow
+#define LED1_GPIO   GPIOA
+#define LED1_PIN    GPIO_Pin_5 // D13, PA5/SPI1_SCK/ADC5 - "LED1" on silkscreen, Green
+
+#define GYRO
+#define ACC
+
+#define SENSORS_SET (SENSOR_ACC)
+
+#endif
+
+#ifdef NAZE
  // Afroflight32
 #define LED0_GPIO   GPIOB
-#define LED0_PIN    GPIO_Pin_3
+#define LED0_PIN    GPIO_Pin_3 // PB3 (LED)
 #define LED1_GPIO   GPIOB
-#define LED1_PIN    GPIO_Pin_4
+#define LED1_PIN    GPIO_Pin_4 // PB4 (LED)
 #define BEEP_GPIO   GPIOA
-#define BEEP_PIN    GPIO_Pin_12
+#define BEEP_PIN    GPIO_Pin_12 // PA12 (Buzzer)
 #define BARO_GPIO   GPIOC
 #define BARO_PIN    GPIO_Pin_13
 
@@ -129,6 +149,9 @@ typedef struct baro_t
 #define BARO
 #define LEDRING
 #define SONAR
+#define BUZZER
+
+#define SENSORS_SET (SENSOR_ACC | SENSOR_BARO | SENSOR_MAG)
 
 #endif
 
@@ -160,8 +183,22 @@ typedef struct baro_t
 #include "drv_i2c.h"
 #include "drv_pwm.h"
 #include "drv_uart.h"
+#endif
 
-#else
+#ifdef OLIMEXINO
+// OLIMEXINO
+#include "drv_system.h"         // timers, delays, etc
+#include "drv_adc.h"
+#include "drv_i2c.h"
+#include "drv_adxl345.h"
+#include "drv_mpu3050.h"
+#include "drv_mpu6050.h"
+#include "drv_l3g4200d.h"
+#include "drv_pwm.h"
+#include "drv_uart.h"
+#endif
+
+#ifdef NAZE
  // AfroFlight32
 #include "drv_system.h"         // timers, delays, etc
 #include "drv_adc.h"

src/drv_mma845x.c

@@ -75,6 +75,7 @@ static void mma8452Init(void)
     GPIO_InitTypeDef GPIO_InitStructure;
 
     // PA5 - ACC_INT2 output on rev3/4 hardware
+    // OLIMEXINO - The PA5 pin is wired up to LED1, if you need to use an mma8452 on an Olimexino use a different pin and provide support in code.
     GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
     GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

src/drv_pwm.c

@@ -449,6 +449,12 @@ bool pwmInit(drv_pwm_config_t *init)
         if (setup[i] == 0xFF) // terminator
             break;
 
+#ifdef OLIMEXINO
+        // PWM2 is connected to LED2 on the board and cannot be connected.
+        if (port == PWM2)
+            continue;
+#endif
+
         // skip UART ports for GPS
         if (init->useUART && (port == PWM3 || port == PWM4))
             continue;

src/drv_system.c

@@ -48,10 +48,10 @@ void systemInit(void)
     uint32_t i;
 
     gpio_config_t gpio_cfg[] = {
-        { LED0_GPIO, LED0_PIN, GPIO_Mode_Out_PP }, // PB3 (LED)
+        { LED0_GPIO, LED0_PIN, GPIO_Mode_Out_PP },
-        { LED1_GPIO, LED1_PIN, GPIO_Mode_Out_PP }, // PB4 (LED)
+        { LED1_GPIO, LED1_PIN, GPIO_Mode_Out_PP },
-#ifndef FY90Q
+#ifdef BUZZER
-        { BEEP_GPIO, BEEP_PIN, GPIO_Mode_Out_OD }, // PA12 (Buzzer)
+        { BEEP_GPIO, BEEP_PIN, GPIO_Mode_Out_OD },
 #endif
     };
     uint8_t gpio_count = sizeof(gpio_cfg) / sizeof(gpio_cfg[0]);

src/main.c

@@ -58,13 +58,7 @@ int main(void)
     adcInit(&adc_params);
 
     // We have these sensors
-#ifndef FY90Q
+    sensorsSet(SENSORS_SET);
-    // AfroFlight32
-    sensorsSet(SENSOR_ACC | SENSOR_BARO | SENSOR_MAG);
-#else
-    // FY90Q
-    sensorsSet(SENSOR_ACC);
-#endif
 
     mixerInit(); // this will set useServo var depending on mixer type
     // when using airplane/wing mixer, servo/motor outputs are remapped

src/sensors.c

@@ -67,12 +67,14 @@ retry:
                     break;
             }
             ; // fallthrough
+#ifndef OLIMEXINO
         case 3: // MMA8452
             if (mma8452Detect(&acc)) {
                 accHardware = ACC_MMA8452;
                 if (mcfg.acc_hardware == ACC_MMA8452)
                     break;
             }
+#endif
     }
 
     // Found anything? Check if user fucked up or ACC is really missing.