add Two sensors measurement for PCB with screen

2026-03-22 01:31:05 +03:00 · 2019-07-30 16:56:43 +03:00
parent b0dccf956b
commit 4bd57d704a
50 changed files with 54479 additions and 0 deletions
--- a/STM32/Tcalc_screen_ver2/hardware.c
+++ b/STM32/Tcalc_screen_ver2/hardware.c
@@ -0,0 +1,106 @@
+/*
+ *                                                                                                  geany_encoding=koi8-r
+ * hardware.c - hardware-dependent macros & functions
+ *
+ * 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.
+ *
+ */
+
+#include "hardware.h"
+
+static I2C_SPEED curI2Cspeed = LOW_SPEED;
+
+void gpio_setup(void){
+    RCC->AHBENR |= RCC_AHBENR_GPIOCEN | RCC_AHBENR_GPIOBEN | RCC_AHBENR_GPIOAEN;
+    // Set LEDS (PA14/15)
+    GPIOA->MODER = GPIO_MODER_MODER14_O | GPIO_MODER_MODER15_O;
+    // PC13 - digital output - poweron
+    GPIOC->OTYPER = 1 << 13; // opendrain
+    GPIOC->MODER = GPIO_MODER_MODER13_O;
+    // D/C & Reset pins: D/C - PB1, Reset - PB0, CS - PB2
+    GPIOB->MODER |= GPIO_MODER_MODER0_O | GPIO_MODER_MODER1_O | GPIO_MODER_MODER2_O;
+}
+
+void spi_setup(){
+    /* Enable the peripheral clock of GPIOA */
+    RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
+    /* (1) Select AF mode (10) on PA5, PA7, push-pull @PA4. MISO disabled (simplex mode)*/
+    /* (2) AF0 for SPI1 signals */
+    GPIOA->MODER = (GPIOA->MODER
+                    & ~(GPIO_MODER_MODER5  | GPIO_MODER_MODER7)) \
+                    | (GPIO_MODER_MODER5_AF | GPIO_MODER_MODER7_AF); /* (1) */
+    GPIOA->AFR[0] = (GPIOA->AFR[0] & \
+                    ~(GPIO_AFRL_AFRL5 | GPIO_AFRL_AFRL7)); /* (2) */
+
+    /* Enable the peripheral clock SPI1 */
+    RCC->APB2ENR |= RCC_APB2ENR_SPI1EN;
+
+    /* Configure SPI1 in master */
+    /* (1) Master selection, BR: Fpclk/256, software SS management
+        CPOL and CPHA at zero (rising first edge) */
+    /* (2) Slave select output disabled, 8-bit Rx fifo */
+    /* (3) Enable SPI1 */
+    SPI1->CR1 = SPI_CR1_MSTR | SPI_CR1_BR | SPI_CR1_SSM | SPI_CR1_SSI; /* (1) */
+    SPI1->CR2 = SPI_CR2_FRXTH | SPI_CR2_DS_2 | SPI_CR2_DS_1 | SPI_CR2_DS_0; /* (2) */
+    SPI1->CR1 |= SPI_CR1_SPE; /* (3) */
+    CS_HI(); RST_HI();
+}
+
+void i2c_setup(I2C_SPEED speed){
+    if(speed == CURRENT_SPEED){
+        speed = curI2Cspeed;
+    }else{
+        curI2Cspeed = speed;
+    }
+    I2C1->CR1 = 0;
+#if I2CPINS == 910
+/*
+ * GPIO Resources: I2C1_SCL - PA9, I2C1_SDA - PA10
+ * GPIOA->AFR[1]
+ */
+    GPIOA->AFR[1] &= ~0xff0; // alternate function F4 for PA9/PA10
+    GPIOA->AFR[1] |= 0x440;
+    GPIOA->MODER &= ~(GPIO_MODER_MODER9 | GPIO_MODER_MODER10);
+    GPIOA->MODER |= GPIO_MODER_MODER9_AF | GPIO_MODER_MODER10_AF; // alternate function
+    GPIOA->OTYPER |= GPIO_OTYPER_OT_9 | GPIO_OTYPER_OT_10; // opendrain
+    //GPIOA->OTYPER |= GPIO_OTYPER_OT_10; // opendrain
+#elif I2CPINS == 67
+/*
+ * GPIO Resources: I2C1_SCL - PB6, I2C1_SDA - PB7 (AF1)
+ * GPIOB->AFR[0] ->   1<<6*4 | 1<<7*4 = 0x11000000
+ */
+    GPIOB->AFR[0] = (GPIOB->AFR[0] & ~0xff000000) | 0x11000000;
+    GPIOB->MODER = (GPIOB->MODER & ~(GPIO_MODER_MODER6 | GPIO_MODER_MODER7)) |
+                    GPIO_MODER_MODER6_AF | GPIO_MODER_MODER7_AF;
+    GPIOB->OTYPER |= GPIO_OTYPER_OT_6 | GPIO_OTYPER_OT_7;
+#else // undefined
+#error "Not implemented"
+#endif
+    // I2C
+    RCC->APB1ENR |= RCC_APB1ENR_I2C1EN; // timing
+    RCC->CFGR3 |= RCC_CFGR3_I2C1SW; // use sysclock for timing
+    if(speed == LOW_SPEED){ // 10kHz
+        // PRESC=B, SCLDEL=4, SDADEL=2, SCLH=0xC3, SCLL=0xB0
+        I2C1->TIMINGR = (0xB<<28) | (4<<20) | (2<<16) | (0xC3<<8) | (0xB0);
+    }else if(speed == HIGH_SPEED){ // 100kHz
+        I2C1->TIMINGR = (0xB<<28) | (4<<20) | (2<<16) | (0x12<<8) | (0x11);
+    }else{ // VERYLOW_SPEED - the lowest speed by STM register: 5.8kHz (presc = 16-1 = 15; )
+        I2C1->TIMINGR = (0xf<<28) | (4<<20) | (2<<16) | (0xff<<8) | (0xff);
+    }
+    I2C1->CR1 = I2C_CR1_PE;// | I2C_CR1_RXIE; // Enable I2C & (interrupt on receive - not supported yet)
+}