Add NEUTRONRCF435 support including AT32F435RGT7 1M FLASH

make/mcu/AT32F4.mk

@@ -39,7 +39,11 @@ INCLUDE_DIRS    := $(INCLUDE_DIRS) \
                    $(MIDDLEWARES_DIR)/usbd_class/msc \
                    $(VCP_INCLUDES)
 
+ifeq ($(TARGET_MCU),AT32F435ZMT7)
 LD_SCRIPT       = $(LINKER_DIR)/at32_flash_f43xM.ld
+else
+LD_SCRIPT       = $(LINKER_DIR)/at32_flash_f43xG.ld
+endif
 
 ARCH_FLAGS      = -std=c99  -mthumb -mcpu=cortex-m4 -march=armv7e-m -mfloat-abi=hard -mfpu=fpv4-sp-d16 -fsingle-precision-constant -Wdouble-promotion
 DEVICE_FLAGS   += -DUSE_ATBSP_DRIVER -DAT32F43x -DHSE_VALUE=$(HSE_VALUE) -DAT32 -DUSE_OTG_HOST_MODE

src/config/ATSTARTF435/config.h

@@ -19,7 +19,7 @@
  * If not, see <http://www.gnu.org/licenses/>.
  */
 
-#define FC_TARGET_MCU     AT32F435
+#define FC_TARGET_MCU     AT32F435_4M
 
 #define BOARD_NAME        ATSTARTF435
 #define MANUFACTURER_ID   AT

src/config/NEUTRONRCF435/config.h

@@ -0,0 +1,67 @@
+/*
+ * This file is part of Betaflight.
+ *
+ * Betaflight is free software. You can redistribute this software
+ * and/or modify this software under the terms of the GNU General
+ * Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * Betaflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this software.
+ *
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define FC_TARGET_MCU     AT32F435
+
+#define BOARD_NAME        NEUTRONRCF435
+#define MANUFACTURER_ID   NERC
+
+#define LED0_PIN             PC4
+
+#define USE_GYRO
+#define USE_ACC
+#define USE_ACCGYRO_BMI270
+#define GYRO_1_CS_PIN        PA15
+#define GYRO_1_SPI_INSTANCE  SPI1
+#define GYRO_1_ALIGN         CW270_DEG
+
+// MPU6000 interrupts
+#define USE_EXTI
+#define USE_GYRO_EXTI
+#define GYRO_1_EXTI_PIN      PB8
+
+#define SPI1_SCK_PIN         PA5
+#define SPI2_SCK_PIN         PB13
+#define SPI3_SCK_PIN         PB3
+#define SPI1_SDI_PIN         PA6
+#define SPI2_SDI_PIN         PB14
+#define SPI3_SDI_PIN         PB4
+#define SPI1_SDO_PIN         PA7
+#define SPI2_SDO_PIN         PB15
+#define SPI3_SDO_PIN         PB5
+
+#define USE_FLASH
+#define USE_FLASH_W25Q128FV
+#define FLASH_CS_PIN         PB9
+#define FLASH_SPI_INSTANCE   SPI3
+
+#define I2C2_SCL_PIN         PB10
+#define I2C2_SDA_PIN         PB11
+
+#define BARO_I2C_INSTANCE    I2CDEV_2
+#define USE_BARO
+#define USE_BARO_BMP280
+
+#define USE_OSD_SD
+#define USE_MAX7456
+#define MAX7456_SPI_INSTANCE SPI2
+#define MAX7456_SPI_CS_PIN   PB12
+

src/link/at32_flash_f43xG.ld

@@ -0,0 +1,41 @@
+/*
+*****************************************************************************
+**
+**  File        : at32_flash_f43xG.ld
+**
+**  Abstract    : Linker script for AT32F435/7xG Device with
+**                1024KByte FLASH, 384KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : Artery Tek AT32
+**
+**  Environment : Arm gcc toolchain
+**
+*****************************************************************************
+*/
+
+/*
+    FLASH : 0x0800 0000 -- 0x083E FFFF
+    MEM   : 0x2000 0000 -- 0x2007 FFFF
+*/
+
+MEMORY
+{
+    FLASH (rx)         : ORIGIN = 0x08000000, LENGTH = 16K
+    FLASH_CONFIG (r)   : ORIGIN = 0x08004000, LENGTH = 16K
+    FLASH1 (rx)        : ORIGIN = 0x08008000, LENGTH = 992K
+    SYSTEM_MEMORY (rx) : ORIGIN = 0x1FFF0000, LENGTH = 16K
+    RAM (xrw)          : ORIGIN = 0x20000000, LENGTH = 192K
+    MEMORY_B1 (rx)     : ORIGIN = 0x60000000, LENGTH = 0K /* external ram */
+}
+
+REGION_ALIAS("STACKRAM", RAM)
+REGION_ALIAS("VECTAB", RAM)
+
+REGION_ALIAS("MOVABLE_FLASH", FLASH1)
+
+INCLUDE "at32_flash_f4_split.ld"

src/link/at32_flash_f4_split.ld

@@ -3,7 +3,7 @@
 **
 **  File        : at32_flash_f4_split.ld
 **
-**  Abstract    : Common linker script for STM32 devices.
+**  Abstract    : Common linker script for AT32 devices.
 **
 *****************************************************************************
 */

src/main/config/config_streamer.c

@@ -513,7 +513,7 @@ int config_streamer_flush(config_streamer_t *c)
         c->err = write_word(c, &c->buffer.w);
         c->at = 0;
     }
-    return c-> err;
+    return c->err;
 }
 
 int config_streamer_finish(config_streamer_t *c)

src/main/drivers/at32/platform_mcu.h

@@ -20,7 +20,7 @@
 
 #pragma once
 
-#if defined(AT32F435ZMT7)
+#if defined(AT32F435)
 
 #include "at32f435_437.h"
 #include "at32f435_437_i2c.h"

src/main/target/AT32F435/target.h

@@ -93,4 +93,4 @@
 // #undef USE_SERIAL_4WAY_BLHELI_BOOTLOADER
 #undef USE_SERIAL_4WAY_SK_BOOTLOADER
 
-#define FLASH_PAGE_SIZE ((uint32_t)0x1000) // 4K sectors
+#define FLASH_PAGE_SIZE ((uint32_t)0x0800) // 2K sectors

src/main/target/AT32F435/target.mk

@@ -1,5 +1,4 @@
 TARGET_MCU        := AT32F435
-MCU_FLASH_SIZE    := 4032
-DEVICE_FLAGS       = -DAT32F435ZMT7
+MCU_FLASH_SIZE    := 1024
+DEVICE_FLAGS       = -DAT32F435RGT7
 TARGET_MCU_FAMILY := AT32F4
-