3.22EjemploDRM007 Co..

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Software Design Considerations 5.9.19 DataLCD(Byte data) ASCII symbol to be displayed on the LCD, at the current cursor position. Parameters: data — 8-bit value representing the ASCII code of the symbol to be displayed in the LCD at current position. 5.9.20 StringLCD(Byte *msgLCD) This function displays a string in the LCD at current cursor position. If a '&' character is present in the string, a new line feed is commanded to the LCD. The function sends all the bytes in the string until a presence of an End Of String, EOS or 0x00 byte. Parameters: *msgLCD — Pointer to the string to be displayed on the LCD. 5.9.21 WaitMs(Byte milis) Delay routine that waits for a number of milliseconds to send in the parameter milis. The delay is calculated for an 8 MHz f BUS operation. Parameters: milis — An 8-bit value representing the number of milliseconds the delay will take. 5.9.22 Wait40µs(void) Fixed delay of 40 microseconds. DRM007 BLDC Motor Control Board for Industrial and Appliance Applications 94 Software Design Considerations MOTOROLA
Software Design Considerations MCU Usage 5.10 MCU Usage Table 5-3 shows how much memory is needed to run the 3-phase BLDC motor drive in a speed closed loop using Hall sensors, washing machine functions, and user’s interface. A part of the MCU memory is still available for other tasks. Memory (In 8-Bit Words) Table 5-3. RAM and FLASH Memory Usage Available (MC68HC908MR8) Used (Application + Stack) Program FLASH 7680 2820 Data RAM 256 36 + 96 BLDC Motor Control Board for Industrial and Appliance Applications DRM007 MOTOROLA Software Design Considerations 95
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BLDC Motor Control Board for Indust
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Revision History To provide the mos
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List of Sections DRM007 BLDC Motor
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Table of Contents Section 2. Operat
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Table of Contents 5.9.9 Signed Word
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List of Figures Figure Title Page 5
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List of Tables DRM007 BLDC Motor Co
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Introduction and Setup 1.2 Introduc
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Introduction and Setup M68HC08 CPU
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Introduction and Setup • Low-powe
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Introduction and Setup OR PRESCALER
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Introduction and Setup 1.4.3 PWM Co
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Introduction and Setup Brushless dc
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Introduction and Setup V BUS PWM1 P
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Introduction and Setup 1.6.6 Target
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Introduction and Setup The Hall sen
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Introduction and Setup To program t
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Introduction and Setup HALL EFFECT
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Operational Description 2.3 Electri
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Operational Description By pressing
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Operational Description 2.5.5 J5
Page 44 and 45: 44 Schematics and Bill of Materials
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Page 56 and 57: Hardware Design Considerations 4.2
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Page 80 and 81: Software Design Considerations 5.5
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Page 98 and 99: Practical Results Figure 6-2 shows
Page 100 and 101: Practical Results Taking the rectif
Page 102 and 103: Practical Results DRM007 BLDC Motor
Page 104 and 105: Source Code 7.2 Include Files 7.2.1
Page 106 and 107: Source Code #define SCS1 (*(volatil
Page 108 and 109: Source Code 7.2.2 START08.H ; /****
Page 110 and 111: Source Code #pragma DATA_SEG DEFAUL
Page 112 and 113: Source Code // Function Headers voi
Page 114 and 115: Source Code void CtrlLCD(UBYTE cont
Page 116 and 117: Source Code 7.3 Source Code Files 7
Page 118 and 119: Source Code ZeroOut: ; LDA _startup
Page 120 and 121: Source Code Loop1: finished: } } DB
Page 122 and 123: Source Code 7.3.2 MAIN.C ; /*******
Page 124 and 125: Source Code EnableInterrupts(); do
Page 126 and 127: Source Code } else { if((PORTB & OP
Page 128 and 129: Source Code #include "MR8IO.h" #inc
Page 130 and 131: Source Code #endif /* Initialize ti
Page 132 and 133: Source Code LDX #0x12 DIV LDHX #0x0
Page 134 and 135: Source Code */ SINT16 PIController
Page 136 and 137: Source Code /**********************
Page 138 and 139: Source Code { #ifdef MOS_3_COM PVAL
Page 140 and 141: Source Code #ifdef MOS_2_COM PVAL1
Page 142 and 143: Source Code PVAL3 = _newPWM; PVAL4
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Source Code TurnOffAllPWMOutputs();
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Source Code /**********************
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Source Code void MovCursorLCD(UBYTE
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Source Code /**********************
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