boards: add WeActStudio USB2CANFDV1

Author: romainreignier

CMakeLists.txt

@@ -448,6 +448,7 @@ set(TGTF407_LIST
 set(TGTG0B1_LIST
 	"2C2L_USB"
 	"ConvertDevice_xCANFD"
+	"WeActStudio_USB2CANFDV1"
 	"budgetcan"
 	"candleLightFD"
 	"nucleo_g0b1re"

README.md

@@ -17,6 +17,7 @@ This is firmware for certain STM32F042x/STM32F072xB-based USB-CAN adapters, nota
 - DSD TECH SH-C30A: <https://www.deshide.com/product-details.html?pid=384242&_t=1671089557> (STM32F072xB)
 - FYSETC UCAN: <https://www.fysetc.com/products/fysetc-ucan-board-based-on-stm32f072-usb-to-can-adapter-support-with-canable-candlelight-klipper-firmware> (STM32F072xB)
 - FalCAN Probe: <https://github.com/AndersBNielsen/FalCAN> (STM32F042C6)
+- WeActStudio USB2CANFDV1: https://github.com/WeActStudio/WeActStudio.USB2CANFDV1 (STM32G0B1CBT6)
 
 Of important note is that the common STM32F103 will NOT work with this firmware because its hardware cannot use both USB and CAN simultaneously.
 Beware also the smaller packages in the F042 series which map a USB and CAN_TX signal on the same pin and are therefore unusable !

include/config.h

@@ -424,6 +424,18 @@
 	#define NUM_CAN_CHANNEL			 1
 	#define CONFIG_CANFD			 1
 
+#elif defined(BOARD_WeActStudio_USB2CANFDV1)
+	#define USBD_PRODUCT_STRING_FS	 "USB2CANFDV1 gs_usb"
+	#define USBD_MANUFACTURER_STRING "WeActStudio"
+	#define DFU_INTERFACE_STRING_FS	 "USB2CANFDV1 firmware upgrade interface"
+
+	#define CONFIG_HSE_OSC_SPEED	 16000000
+	#define TIM2_CLOCK_SPEED		 64000000
+
+	#define CAN_CLOCK_SPEED			 40000000
+	#define NUM_CAN_CHANNEL			 1
+	#define CONFIG_CANFD			 1
+
 #elif defined(BOARD_budgetcan)
 	#define USBD_PRODUCT_STRING_FS	 "budgetcan gs_usb"
 	#define USBD_MANUFACTURER_STRING "budgetcan"

src/boards/g0b1-WeActStudio_USB2CANFDV1.c

@@ -0,0 +1,125 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2024,
+ *               Romain Reignier <romain@reignier.sh>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+
+#include "board.h"
+#include "config.h"
+#include "device.h"
+#include "gpio.h"
+#include "usbd_gs_can.h"
+
+/*
+ * LED_RX	 PA0
+ * LED_TX	 PA1
+ * LED_READY PA2
+ * USB_P	 PA12
+ * USB_N	 PA11
+ * CAN1_RX	 PB8
+ * CAN1_TX	 PB9
+ */
+
+#define LEDRX_GPIO_Port		 GPIOA
+#define LEDRX_Pin			 GPIO_PIN_0
+#define LEDRX_Mode			 GPIO_MODE_OUTPUT_PP
+#define LEDRX_Active_High	 1
+
+#define LEDTX_GPIO_Port		 GPIOA
+#define LEDTX_Pin			 GPIO_PIN_1
+#define LEDTX_Mode			 GPIO_MODE_OUTPUT_PP
+#define LEDTX_Active_High	 1
+
+#define LEDREADY_GPIO_Port	 GPIOA
+#define LEDREADY_Pin		 GPIO_PIN_2
+#define LEDREADY_Mode		 GPIO_MODE_OUTPUT_PP
+#define LEDREADY_Active_High 1
+
+static void candlelightfd_setup(USBD_GS_CAN_HandleTypeDef *hcan)
+{
+	GPIO_InitTypeDef GPIO_InitStruct = { };
+
+	UNUSED(hcan);
+
+	__HAL_RCC_GPIOA_CLK_ENABLE();
+	__HAL_RCC_GPIOB_CLK_ENABLE();
+
+	/* LEDs */
+	HAL_GPIO_WritePin(LEDRX_GPIO_Port, LEDRX_Pin, GPIO_INIT_STATE(LEDRX_Active_High));
+	GPIO_InitStruct.Pin = LEDRX_Pin;
+	GPIO_InitStruct.Mode = LEDRX_Mode;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+	HAL_GPIO_Init(LEDRX_GPIO_Port, &GPIO_InitStruct);
+
+	HAL_GPIO_WritePin(LEDTX_GPIO_Port, LEDTX_Pin, GPIO_INIT_STATE(LEDTX_Active_High));
+	GPIO_InitStruct.Pin = LEDTX_Pin;
+	GPIO_InitStruct.Mode = LEDTX_Mode;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+	HAL_GPIO_Init(LEDTX_GPIO_Port, &GPIO_InitStruct);
+
+	/* Switch ON the LED READY on start, not driven by the firmware */
+	HAL_GPIO_WritePin(LEDREADY_GPIO_Port, LEDREADY_Pin, GPIO_INIT_STATE(LEDREADY_Active_High));
+	GPIO_InitStruct.Pin = LEDREADY_Pin;
+	GPIO_InitStruct.Mode = LEDREADY_Mode;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+	HAL_GPIO_Init(LEDREADY_GPIO_Port, &GPIO_InitStruct);
+
+	/* FDCAN */
+	RCC_PeriphCLKInitTypeDef PeriphClkInit = {
+		.PeriphClockSelection = RCC_PERIPHCLK_FDCAN,
+		.FdcanClockSelection = RCC_FDCANCLKSOURCE_PLL,
+	};
+
+	HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
+	__HAL_RCC_FDCAN_CLK_ENABLE();
+
+	/* FDCAN1_RX, FDCAN1_TX */
+	GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
+	GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+	GPIO_InitStruct.Pull = GPIO_NOPULL;
+	GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+	GPIO_InitStruct.Alternate = GPIO_AF3_FDCAN1;
+	HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+}
+
+const struct board_config config = {
+	.setup = candlelightfd_setup,
+	.channel[0] = {
+		.interface = FDCAN1,
+		.leds = {
+			[LED_RX] = {
+				.port = LEDRX_GPIO_Port,
+				.pin = LEDRX_Pin,
+				.active_high = LEDRX_Active_High,
+			},
+			[LED_TX] = {
+				.port = LEDTX_GPIO_Port,
+				.pin = LEDTX_Pin,
+				.active_high = LEDTX_Active_High,
+			},
+		},
+	},
+};