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F1:F103/RGB_LED_Screen/hardware.h

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+/*
+ *                                                                                                  geany_encoding=koi8-r
+ * hardware.h
+ *
+ * Copyright 2018 Edward V. Emelianov <eddy@sao.ru, 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ */
+#pragma once
+#ifndef __HARDWARE_H__
+#define __HARDWARE_H__
+
+#include "stm32f1.h"
+#include "screen.h"
+
+// define this if screen colors are negative
+// #define SCREEN_IS_NEGATIVE
+// define if nOE is negative
+#define NOE_IS_NEGATIVE
+
+// LED0 - PC13 (bluepill), blinking each second
+#define LED0_port   GPIOC
+#define LED0_pin    (1<<13)
+
+// USB pullup (not present in bluepill) - PA15
+#define USBPU_port  GPIOA
+#define USBPU_pin   (1<<15)
+#define USBPU_ON()  pin_set(USBPU_port, USBPU_pin)
+#define USBPU_OFF() pin_clear(USBPU_port, USBPU_pin)
+
+#define LED_blink(x)    pin_toggle(x ## _port, x ## _pin)
+#define LED_on(x)       pin_clear(x ## _port, x ## _pin)
+#define LED_off(x)      pin_set(x ## _port, x ## _pin)
+
+// SPI DMA channel
+#define DMA_SPI_Channel DMA1_Channel3
+// SCREEN PINs: A,B,C,D - PB6-PB9; LAT - PB5; nOE - PB4
+// CLK - PA6 (TIM3_CH1)
+// colors: PA0..PA5
+#define COLR_port   GPIOA
+#define COLR_pin    (0x3f)
+#define ADDR_port   GPIOB
+#define ADDR_roll   (6)
+#define ADDR_pin    (0xf<<ADDR_roll)
+#define LAT_port    GPIOB
+#define LAT_pin     (1<<5)
+#define nOE_port    GPIOB
+#define nOE_pin     (1<<4)
+#define SET(x)      pin_set(x ## _port, x ## _pin)
+#define CLEAR(x)    pin_clear(x ## _port, x ## _pin)
+#define TOGGLE(x)   pin_toggle(x ## _port, x ## _pin)
+
+#ifdef NOE_IS_NEGATIVE
+#define SCRN_ENBL()     SET(nOE)
+#define SCRN_DISBL()    CLEAR(nOE)
+#else
+#define SCRN_ENBL()     CLEAR(nOE)
+#define SCRN_DISBL()    SET(nOE)
+#endif
+
+void iwdg_setup();
+void hw_setup();
+void TIM_DMA_transfer(uint8_t blknum);
+void stopTIMDMA();
+void ConvertScreenBuf(uint8_t *sbuf, uint8_t Nrow, uint8_t Ntick);
+
+extern uint8_t transfer_done;
+
+#endif // __HARDWARE_H__