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C Examples 4

C Examples 4. Download Links. MPLAB IDE dsPIC30F4011/4012 Data Sheet dsPIC30F Family Reference Manual MikroC MikroC Manual MikroC Quick Reference. http://www.robotroom.com/HBridge.html.

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C Examples 4

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  1. C Examples 4

  2. Download Links • MPLAB IDE • dsPIC30F4011/4012 Data Sheet • dsPIC30F Family Reference Manual • MikroC • MikroC Manual • MikroC Quick Reference

  3. http://www.robotroom.com/HBridge.html This is just an example, we prefer to use the TC4422 in the T0-220 package which has higher Current capability but is single channel. You can order free samples from microchip

  4. Components: TC4421/TC4422 • Features • High Peak Output Current: 9A • Wide Input Supply Voltage Operating Range: 4.5V to 18V • High Continuous Output Current: 2A Max • Fast Rise and Fall Times: • 30 ns with 4,700 pF Load • 180 ns with 47,000 pF Load • Short Propagation Delays: 30 ns (typ) • Low Supply Current: • With Logic ‘1’ Input: 200 µA (typ) • With Logic ‘0’ Input: 55 µA (typ) • Low Output Impedance: 1.4 (typ) • Latch-Up Protected: Will Withstand 1.5A Output Reverse Current • Input Will Withstand Negative Inputs Up To 5V • Pin-Compatible with the TC4420/TC4429 6A MOSFET Driver • Space-saving 8-Pin 6x5 DFN Package • http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en010665

  5. Components: TC4421/TC4422

  6. Components: TC4421/TC4422

  7. H Bridge ST L298 http://www.st.com/stonline/products/literature/ds/1773.pdf

  8. m=Pwm_Mc_Init(40000,1,0xFF,0x00); m=Pwm_Mc_Init(5000,1, 0b00010001,0x00);

  9. UART1 • U1MODE = 0x8400;

  10. PWM1 • unsigned int i; • unsigned int duty_50; • void main(){ • ADPCFG = 0xFFFF; // initialize AN pins as digital • PORTB = 0xAAAA; • TRISB = 0; // initialize portb as output • Delay_ms(1000); • duty_50 = Pwm_Mc_Init(5000, 0, 0x01, 0); // Pwm_Mc_Init returns 50% of the duty • Pwm_Mc_Set_Duty(i = duty_50, 1); • Pwm_Mc_Start(); • do • { • i--; • Pwm_Mc_Set_Duty(i, 1); • Delay_ms(10); • if (i == 0) • i = duty_50 * 2 - 1; // Let us not allow the overflow • PORTB = i; • } • while(1); • }//~

  11. PWM2-1 • // Pressing RE5 will change directions but speed will be different • unsigned int i, start; • char dir = 1; • unsigned int duty_50; • void main(){ • ADPCFG = 0xFFFF; // initialize AN pins as digital • PORTB = 0xAAAA; • TRISB = 0; • TRISE = 0b100000; • PORTE = 0X00; // initialize port B as output • Delay_ms(1000); • duty_50 = Pwm_Mc_Init(5000, 0, 0x01, 0); // Pwm_Mc_Init returns 50% of the duty // Pwm_Mc_Init returns 50% of the duty • Pwm_Mc_Set_Duty(i = duty_50, 1); • Pwm_Mc_Start(); • do • { • i--; • Pwm_Mc_Set_Duty(i, dir); • Delay_ms(10); • if (i == 0) • i = duty_50 * 2 - 1; // Let us not allow the overflow • PORTB = i; • if (Button(&PORTE, 5, 1, 1)) // Switch at PORTE Bit 5 • start = 1; • if (start&&Button(&PORTE, 5, 1, 0)) // Switch at PORTE Bit 5 • { • start=0; • PORTE.F1 = PORTE.F1^1; • } • } • while(1); • }

  12. PWM-2 • OVDCON = 0b0000000100000000; • PWM1L is PWM signal PWM1H is set to 0 • OVDCON = OVDCON^0b0000001100000000; • PWM1L is set to 0 PWM1H is PWM signal

  13. PWM2-2 • // Pressing RE5 will change direction at same speed • unsigned int i, start; • char dir = 1; • unsigned int duty_50; • void main(){ • ADPCFG = 0xFFFF; // initialize AN pins as digital • PORTB = 0xAAAA; • TRISB = 0; • TRISE = 0b100000; • PORTE = 0X00; // initialize portb as output • Delay_ms(1000); • OVDCON = 0b0000000100000000; • duty_50 = Pwm_Mc_Init(5000, 1, 0b00010001, 0); // Pwm_Mc_Init returns 50% of the duty • Pwm_Mc_Set_Duty(i = duty_50, 1); • Pwm_Mc_Start(); • do • { • i--; • Pwm_Mc_Set_Duty(i, dir); • Delay_ms(10); • if (i == 0) • i = duty_50 * 2 - 1; // Let us not allow the overflow • PORTB = i; • if (Button(&PORTE, 5, 1, 1)) // Switch at PORTE Bit 5 • start = 1; • if (start&&Button(&PORTE, 5, 1, 0)) // Switch at PORTE Bit 5 • { • start=0; • OVDCON = OVDCON^0b0000001100000000; • PORTE.F4 = PORTE.F4^1; • } // Toggles PORTE Bit 1 • } • while(1); • }

  14. PWM-3 • // Computer keyboard 1, 2, 2, 4 sets speed. 7, 8, 9 sets direction • int m; • int p; • signed char n; • void main () • { • IEC0=0x0200; // Enable Interrupt for UART 1 Rx • Uart1_Init(19200); • Delay_ms(100); • TRISE=0; • PORTE=0; • TRISB=0b11111101; • PORTB.F1=0; • m=Pwm_Mc_Init(40000,1,0x01,0x00); • Pwm_MC_Set_Duty(m,1); • Pwm_Mc_Start(); • while(1) • { • Delay_ms(1000); • PORTB.F1=0; • } • } • void interrupt_UART1() org 0x000026 • { • PORTB.F1=1; • n = Uart1_Read_Char()&0x0F; • Uart1_Write_Char(n); • switch (n) { • case 1: p=-2; • goto FLAG; • case 2: p=-1; • goto FLAG; • case 3: p=1; • goto FLAG; • case 4: p=2; • goto FLAG; • case 7: PORTE.F2=1; PORTE.F3=0; • goto END; • case 8: PORTE.F2=0; PORTE.F3=0; • goto END; • case 9: PORTE.F2=0; PORTE.F3=1; • default : goto END; • FLAG: p= m + ((m-1)*p)/2; • Pwm_MC_Set_Duty(p,1); • END: IFS0=0x0000; • } • }

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