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@ -12,19 +12,23 @@
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#include "lcd.h"
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#include "i2c.h"
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#include "modbus.h"
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#include "menu.h"
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volatile uint16_t holdingRegisters[4];
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volatile uint16_t holdingRegisters[10];
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void modbusGet(void) {
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if (modbusGetBusState() & (1<<ReceiveCompleted))
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{
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switch(rxbuffer[1]) {
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case fcReadHoldingRegisters:
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i2c_start(0x71);
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holdingRegisters[0] = i2c_readNak();
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i2c_stop();
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case fcPresetSingleRegister:
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case fcPresetMultipleRegisters:
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modbusExchangeRegisters(holdingRegisters,0,4);
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lcd_home();
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lcd_write("test %x", holdingRegisters[0]);
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lcd_set_position(holdingRegisters[1], holdingRegisters[2]);
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lcd_write("test");
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break;
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default:
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modbusSendException(ecIllegalFunction);
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@ -33,6 +37,26 @@ void modbusGet(void) {
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}
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}
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void do_buttons(){
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//i2c_start(0x71);
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//uint8_t buttons = i2c_readNak();
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//i2c_stop();
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////TODO error handling
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//if(buttons & (1 << 0))
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// set_item(1);
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//else if(buttons & (1 << 1))
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// set_item(2);
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//else if(buttons & (1 << 2))
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// set_item(2);
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//else if(buttons & (1 << 2))
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// set_item(3);
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//else if(buttons & (1 << 3))
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// set_item(4);
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//else if(buttons & (1 << 4))
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// set_item(5);
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}
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int main(void)
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{
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i2c_init();
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@ -47,8 +71,11 @@ int main(void)
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TCCR0B|=(1<<CS01); //prescaler 8
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TIMSK0|=(1<<TOIE0);
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draw_menu();
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while(1){
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modbusGet();
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do_buttons();
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}
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}
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