add Canon managing device KiCAD schematic & PCB

F1:F103/Canon_managing_device/hardware.c

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+/*
+ * This file is part of the canonmanage project.
+ * Copyright 2022 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it 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.
+ *
+ * This program 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 program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hardware.h"
+
+static inline void gpio_setup(){
+    // Set APB2 clock to 72/4=18MHz
+    RCC->CFGR = (RCC->CFGR & ~RCC_CFGR_PPRE2) | RCC_CFGR_PPRE2_DIV4;
+    // Enable clocks to the GPIO subsystems, turn on AFIO clocking to disable SWD/JTAG
+    RCC->APB2ENR = RCC_APB2ENR_IOPAEN | RCC_APB2ENR_IOPCEN | RCC_APB2ENR_AFIOEN;
+    AFIO->MAPR = AFIO_MAPR_SWJ_CFG_JTAGDISABLE; // for PA15 - USB pullup
+    // Set led as opendrain output
+    GPIOC->CRH = CRH(13, CNF_ODOUTPUT | MODE_SLOW);
+    // setup SPI GPIO - alternate function PP (PA5 - SCK, PA6 - MISO, PA7 - MOSI)
+    GPIOA->CRL = CRL(5, CNF_AFPP|MODE_FAST) | CRL(6, CNF_FLINPUT) | CRL(7, CNF_AFPP|MODE_FAST);
+    // USB pullup (PA15) - pushpull output
+    USBPU_OFF();
+    GPIOA->CRH = CRH(15, CNF_PPOUTPUT | MODE_SLOW);
+}
+
+void hw_setup(){
+    gpio_setup();
+}
+