remote set and get register by address

control/examples/register/Makefile

@@ -0,0 +1,30 @@
+# Name: Makefile
+# Project: B15F (board15 Famulus Edition)
+# Author: Tristan Krause
+# Creation Date: 2019-05-15
+
+# Environment
+COMPILER_PATH = g++
+
+# Options
+CFLAGS   = -std=c++17 -O3 -Wall -Wextra
+LDFLAGS  = -lb15fdrv
+OBJECTS  = main.o
+OUT      = main.elf
+
+COMPILE = $(COMPILER_PATH) $(CFLAGS)
+
+main: $(OBJECTS)
+	$(COMPILE) $(OBJECTS) -o $(OUT) $(LDFLAGS)
+
+help:
+	@echo "This Makefile has the following targets:"
+	@echo "make main .... to compile"
+	@echo "make clean ... to delete objects and executables"
+	
+clean:
+	@echo "Cleaning..."
+	rm -f $(OBJECTS) $(OUT) *.bin gnuplotscript.gp
+
+.cpp.o:
+	$(COMPILE) -c $< -o $@

control/examples/register/main.cpp

@@ -0,0 +1,35 @@
+#include <iostream>
+#include <cmath>
+#include <b15f/b15f.h>
+#include <b15f/plottyfile.h>
+
+const char PLOT_FILE[] = "plot.bin";
+
+constexpr uint8_t SFR_OFFSET = 0x20;
+constexpr uint8_t SFR_DDRB = 0x04;
+constexpr uint8_t SFR_WDTCSR = 0x60;
+constexpr uint8_t SFR_PORTB = 0x05;
+
+/*
+ * Dieses Beispiel erzeugt einen 300ms langen Impuls an PB0.
+ * 
+ */
+int main()
+{
+	uint8_t DDRB, PORTB;
+	B15F& drv = B15F::getInstance();
+    
+    DDRB = drv.getRegister(SFR_DDRB + SFR_OFFSET);    
+    DDRB |= (1<<0);
+    drv.setRegister(SFR_DDRB + SFR_OFFSET, DDRB);
+    
+    PORTB = drv.getRegister(SFR_PORTB + SFR_OFFSET);
+    PORTB |= (1<<0);
+    drv.setRegister(SFR_PORTB + SFR_OFFSET, PORTB);
+    
+    drv.delay_ms(300);
+    
+    PORTB = drv.getRegister(SFR_PORTB + SFR_OFFSET);
+    PORTB &= ~(1<<0);
+    drv.setRegister(SFR_PORTB + SFR_OFFSET, PORTB);
+}

control/src/drv/b15f.cpp

@@ -330,6 +330,46 @@ bool B15F::pwmSetValue(uint8_t value)
     return aw == MSG_OK;
 }
 
+bool B15F::setRegister(uint8_t adr, uint8_t val)
+{
+    usart.clearInputBuffer();
+
+    uint8_t rq[] =
+    {
+        RQ_SET_REG,
+        adr,
+        val
+    };
+
+    int n_sent = usart.write_timeout(&rq[0], 0, sizeof(rq), 1000);
+    if(n_sent != sizeof(rq))
+        abort("Sent failed");
+
+    uint8_t byte = usart.readByte();
+    delay_us(10);
+    return byte == val;
+}
+
+uint8_t B15F::getRegister(uint8_t adr)
+{
+    usart.clearInputBuffer();
+
+    uint8_t rq[] =
+    {
+        RQ_GET_REG,
+        adr
+    };
+
+    int n_sent = usart.write_timeout(&rq[0], 0, sizeof(rq), 1000);
+    if(n_sent != sizeof(rq))
+        abort("Sent failed");
+
+    uint8_t aw = usart.readByte();
+    delay_us(10);
+    return aw;
+}
+
+
 void B15F::delay_ms(uint16_t ms)
 {
     std::this_thread::sleep_for(std::chrono::milliseconds(ms));

control/src/drv/b15f.h

@@ -210,6 +210,22 @@ public:
      */
     bool pwmSetValue(uint8_t value);
 
+    /**
+     * Setzt direkt den Wert eines MCU Registers.
+     * *Wichtig:* bei einer falschen Adresse kann das Board 15 ernsthaften Schaden nehmen!
+     * \param adr Speicheradresse des Registers
+     * \param val Neuer Wert für das Register
+     * \throws DriverException
+     */
+    bool setRegister(uint8_t adr, uint8_t val);
+
+    /**
+     * Liefert den Wert eines MCU Registers.
+     * \param adr Speicheradresse des Registers
+     * \throws DriverException
+     */
+    uint8_t getRegister(uint8_t adr);
+
     /*************************/
 
 
@@ -248,9 +264,11 @@ private:
     constexpr static uint8_t RQ_AA0  = 10;
     constexpr static uint8_t RQ_AA1  = 11;
     constexpr static uint8_t RQ_ADC  = 12;
-    constexpr static uint8_t RQ_ADC_DAC_STROKE  = 13;
-    constexpr static uint8_t RQ_PWM_SET_FREQ    = 14;
-    constexpr static uint8_t RQ_PWM_SET_VALUE   = 15;
+    constexpr static uint8_t RQ_ADC_DAC_STROKE = 13;
+    constexpr static uint8_t RQ_PWM_SET_FREQ   = 14;
+    constexpr static uint8_t RQ_PWM_SET_VALUE  = 15;
+    constexpr static uint8_t RQ_SET_REG        = 16;
+    constexpr static uint8_t RQ_GET_REG        = 17;
 };
 
 #endif // B15F_H