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thorn_aitc |
//===============================
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// LCD Test Program
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//-------------------------------
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// for VirtexE Evaluation Board
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// May.1 2003 Ver.1
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//===============================
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//======================================================
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// Address Map
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//======================================================
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// address sz wt wd device
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// 00000000-00001FFF 8K 0 32 ROM (code)
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// 00002000-00003DFF 6K 0 32 RAM (data)
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// 00003E00-00003FFF 512 0 32 RAM (stack)
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//
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// 00000000-0000FFFF 64K 0 32 RAM (shadow every 16KB)
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// 00010000-0001FFFF 64K 3 32 RAM (shadow every 16KB)
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// 00020000-0002FFFF 64K 0 16 RAM (shadow every 16KB)
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// 00030000-0003FFFF 64K 3 16 RAM (shadow every 16KB)
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// 00040000-ABCCFFFF (shadow RAM)
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// ABCD0000-ABCD00FF 256 3 32 PIO (shadow every 4B)
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// ABCD0100-ABCD01FF 256 3 32 UART(shadow every 4B)
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// ABCD0200-ABCD02FF 256 3 32 SYS (shadow every 8B)
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// ABCD0300-FFFBFFFF (shadow RAM)
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// FFFC0000-FFFCFFFF 64K 0 32 RAM (shadow every 16KB)
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// FFFD0000-FFFDFFFF 64K 3 32 RAM (shadow every 16KB)
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// FFFE0000-FFFEFFFF 64K 0 16 RAM (shadow every 16KB)
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// FFFF0000-FFFFFFFF 64K 3 16 RAM (shadow every 16KB)
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//
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//======================================================
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// PORT OUTPUT
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//======================================================
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// ABCD0000 : reserved
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// 31 30 29 28 27 26 25 24
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | | | | | |
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// -----------------------------------------------;
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//
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// ABCD0001 : KEYYO (Key SCAN Y-axis out)
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// 23 22 21 20 19 18 17 16
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | KY4 | KY3 | KY2 | KY1 | KY0 |
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// -----------------------------------------------
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//
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// ABCD0002 : LCDCON (LCD Control Signal)
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// 15 14 13 12 11 10 9 8
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | | | E | R/W | RS |
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// -----------------------------------------------
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//
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// ABCD0003 : LCDOUT (Write Data to LCD)
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// 7 6 5 4 3 2 1 0
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | DW7 | DW6 | DW5 | DW4 | DW3 | DW2 | DW1 | DW0 |
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// -----------------------------------------------
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//
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//======================================================
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// PORT INPUT
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//======================================================
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// ABCD0000 : reserved
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// 31 30 29 28 27 26 25 24
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | | | | | |
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// -----------------------------------------------;
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//
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// ABCD0001 : KEYXI (Key SCAN X-axis in)
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// 23 22 21 20 19 18 17 16
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | KX4 | KX3 | KX2 | KX1 | KX0 |
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// -----------------------------------------------
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//
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// ABCD0002 : reserved
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// 15 14 13 12 11 10 9 8
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | | | | | |
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// -----------------------------------------------
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//
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// ABCD0003 : LCDIN (Read Data from LCD)
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// 7 6 5 4 3 2 1 0
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | DR7 | DR6 | DR5 | DR4 | DR3 | DR2 | DR1 | DR0 |
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// -----------------------------------------------
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//
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//======================================================
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// UART: SASC (www.opencores.com)
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// Simple Asynchronous Serial Communication Device
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//======================================================
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// ABCD0100 : UARTBG0 Baud Rate Generator Div0 (R/W)
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// 31 30 29 28 27 26 25 24
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | B07 | B06 | B05 | B04 | B03 | B02 | B01 | B00 |
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// -----------------------------------------------
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//
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// ABCD0101 : UARTBG1 Baud Rate Generator Div1 (R/W)
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// 23 22 21 20 19 18 17 16
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | B17 | B16 | B15 | B14 | B13 | B12 | B11 | B10 |
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// -----------------------------------------------
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//
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// ABCD0102 : UARTCON (TXF=full_o, RXE=empty_o) (R only)
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// 15 14 13 12 11 10 9 8
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | | | | | | | TXF | RXE |
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// -----------------------------------------------
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//
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// ABCD0103 : UARTTXD(W only)/UARTRXD(R only)
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// 7 6 5 4 3 2 1 0
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// | TR7 | TR6 | TR5 | TR4 | TR3 | TR2 | TR1 | TR0 |
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// -----------------------------------------------
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//
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//======================================================
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// System Controller
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// Interrupt and Exception Controller
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//======================================================
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// ABCD0200 : INTCTL Interrupt Control (32bit R/W only)
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// 31 30 29 28 27 26 25 24
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// -----------------------------------------------
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// |E_NMI|E_IRQ|E_CER|E_DER|E_MRS| |TMRON|BRKON|
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// -----------------------------------------------
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// 23 22 21 20 19 18 17 16
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// -----------------------------------------------
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// |ILVL3|ILVL2|ILVL1|ILVL0|IVEC7|IVEC6|IVEC5|IVEC4|
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// -----------------------------------------------
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// 15 14 13 12 11 10 9 8
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// -----------------------------------------------
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// |IVEC3|IVEC2|IVEC1|IVEC0|TMR11|TMR10|TMR09|TMR08|
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// -----------------------------------------------
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// |TMR07|TMR06|TMR05|TMR04|TMR03|TMR02|TMR01|TMR00|
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// -----------------------------------------------
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// bit31: E_NMI Emulate NMI Interrupt (W only)
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// bit30: E_IRQ Emulate IRQ Interrupt (W only)
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// bit29: E_CER Emulate CPU Address Error (W only)
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// bit28: E_DER Emulate DMA Address Error (W only)
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// bit27: E_MRS Emulate Manual Reset (W only)
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// bit26: reserved
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// bit25: TMRON INTTMR OFF/ON (0:OFF, 1:ON)
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// bit24: BRKON Address Break(NMI) OFF/ON (0:OFF, 1:ON)
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// bit23: ILVL3 IRQ ILevel 3
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// bit22: ILVL2 IRQ ILevel 2
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// bit21: ILVL1 IRQ ILevel 1
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// bit20: ILVL0 IRQ ILevel 0
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// bit19: IVEC7 IRQ Vector 7
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// bit18: IVEC6 IRQ Vector 6
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// bit17: IVEC5 IRQ Vector 5
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// bit16: IVEC4 IRQ Vector 4
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// bit15: IVEC3 IRQ Vector 3
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// bit14: IVEC2 IRQ Vector 2
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// bit13: IVEC1 IRQ Vector 1
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// bit12: IVEC0 IRQ Vector 0
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// bit11: TMR11 (12 bit interval timer to generate IRQ)
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// ...
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// bit 0: TMR00 (12 bit interval timer to generate IRQ)
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//
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// ABCD0204 : BRKADR Break Address (16bit R/W only)
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// 15 14 13 12 11 10 9 8
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| 171 |
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// -----------------------------------------------
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// |ADR15|ADR14|ADR13|ADR12|ADR11|ADR10|ADR09|ADR08|
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// -----------------------------------------------
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// 7 6 5 4 3 2 1 0
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// -----------------------------------------------
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// |ADR07|ADR06|ADR05|ADR04|ADR03|ADR02|ADR01|ADR00|
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// -----------------------------------------------
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// bit15: ADR15 Break Address15
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// ...
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// bit00: ADR00 Break Address00
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//
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#include "common.h"
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//=================
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// Define Functions
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//=================
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void lcd_message(unsigned char pos, unsigned char *pstr);
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void lcd_disp(unsigned char chr);
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| 190 |
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void lcd_pos(unsigned char pos);
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void lcd_ready(void);
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unsigned char lcd_rd(int);
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void lcd_wr(int, unsigned char);
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| 194 |
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void lcd_init(void);
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| 196 |
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//=============
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// Main Routine
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//=============
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void main_sh(void)
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{
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| 201 |
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unsigned char mes_welcome[] = "<SuperH in FPGA>";
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| 202 |
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char data;
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| 203 |
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int i;
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| 204 |
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//-----------
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| 206 |
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// Initialize
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| 207 |
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//-----------
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| 208 |
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lcd_init();
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| 209 |
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lcd_message(0, mes_welcome);
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| 210 |
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data = 0;
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//----------
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| 213 |
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// Main Loop
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//----------
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while(1)
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{
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| 217 |
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if ((data % 16) == 0) lcd_pos(16);
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| 218 |
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lcd_disp(data);
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data++;
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| 220 |
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| 221 |
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for (i = 0 ; i < 100000 ; i++);
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| 222 |
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}
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| 223 |
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}
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| 225 |
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//****************************************************
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| 226 |
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//* *
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| 227 |
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//* LCD Utilities *
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| 228 |
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//* *
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| 229 |
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//****************************************************
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| 230 |
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| 231 |
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//========================================
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| 232 |
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// Print a Message from Current Position
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| 233 |
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//----------------------------------------
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| 234 |
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// Input : pstr = message top address
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| 235 |
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// Outpur : none
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| 236 |
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//========================================
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| 237 |
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void lcd_message(unsigned char pos, unsigned char *pstr)
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| 238 |
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{
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| 239 |
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unsigned char *pmessage;
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| 240 |
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| 241 |
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lcd_pos(pos);
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| 242 |
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pmessage = pstr;
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| 243 |
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while (*pmessage) lcd_disp(*pmessage++);
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| 244 |
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}
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| 245 |
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| 246 |
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//==========================================
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| 247 |
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// Display One Character on Current Position
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| 248 |
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//------------------------------------------
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| 249 |
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// Input : chr = display charcter
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| 250 |
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// Output : none
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| 251 |
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//==========================================
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| 252 |
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void lcd_disp(unsigned char chr)
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| 253 |
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{
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| 254 |
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lcd_ready();
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| 255 |
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lcd_wr(DATA, chr);
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| 256 |
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}
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| 257 |
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| 258 |
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//================================
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| 259 |
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// Set LCD Display Position
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| 260 |
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//--------------------------------
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| 261 |
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// Input : pos = position
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| 262 |
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// 1st line = 00-15
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| 263 |
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// 2nd line = 16-31
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| 264 |
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// Ouput : none
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| 265 |
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//================================
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| 266 |
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void lcd_pos(unsigned char pos)
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| 267 |
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{
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| 268 |
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unsigned char phypos;
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| 269 |
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| 270 |
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phypos = pos % 32;
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| 271 |
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if (phypos >= 16)
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| 272 |
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phypos = (phypos - 16) + 64;
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| 273 |
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phypos = phypos | 0x80;
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| 274 |
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| 275 |
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lcd_ready();
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| 276 |
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lcd_wr(INST, phypos);
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| 277 |
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}
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| 278 |
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| 279 |
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//=====================
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| 280 |
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// Wait until LCD ready
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| 281 |
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//---------------------
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| 282 |
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// Input : none
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| 283 |
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// Output : none
|
| 284 |
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//=====================
|
| 285 |
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void lcd_ready(void)
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| 286 |
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{
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| 287 |
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while ((lcd_rd(INST) & 0x80) == 0x80);
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| 288 |
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}
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| 289 |
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| 290 |
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//=================================
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| 291 |
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// LCD Read
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| 292 |
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//---------------------------------
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| 293 |
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// Input : rs (0=Instr,1=Data)
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| 294 |
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// Output : lcd_rd (Read Data)
|
| 295 |
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//=================================
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| 296 |
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unsigned char lcd_rd(int rs)
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| 297 |
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{
|
| 298 |
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int i;
|
| 299 |
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unsigned char dummy;
|
| 300 |
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unsigned char data;
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| 301 |
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| 302 |
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PORTO.LCDCON.BYTE = 0x02 | (rs & 0x01);
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| 303 |
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| 304 |
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// wait 60ns = 2cyc@20MHz
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| 305 |
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dummy = PORTI.RESERVED_0;
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| 306 |
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dummy = PORTI.RESERVED_0;
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| 307 |
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| 308 |
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| 309 |
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PORTO.LCDCON.BYTE = 0x06 | (rs & 0x01);
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| 310 |
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| 311 |
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// wait 500ns = 10cyc@20MHz
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| 312 |
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for (i = 0 ; i <= 10 ; i++) dummy = PORTI.RESERVED_0;
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| 313 |
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| 314 |
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data = PORTI.LCDIN;
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| 315 |
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| 316 |
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PORTO.LCDCON.BYTE = 0x02 | (rs & 0x01);
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| 317 |
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| 318 |
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// wait 500ns = 10cyc@20MHz
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| 319 |
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for (i = 0 ; i <= 10 ; i++) dummy = PORTI.RESERVED_0;
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| 320 |
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| 321 |
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return(data);
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| 322 |
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}
|
| 323 |
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| 324 |
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//=================================
|
| 325 |
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// LCD Write
|
| 326 |
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//---------------------------------
|
| 327 |
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// Input : rs (0=Instr,1=Data)
|
| 328 |
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// wd (Write Data)
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| 329 |
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// Output : none
|
| 330 |
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//=================================
|
| 331 |
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void lcd_wr(int rs, unsigned char wd)
|
| 332 |
|
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{
|
| 333 |
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int i;
|
| 334 |
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unsigned char dummy;
|
| 335 |
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|
| 336 |
|
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PORTO.LCDOUT = wd;
|
| 337 |
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|
| 338 |
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PORTO.LCDCON.BYTE = 0x00 | (rs & 0x01);
|
| 339 |
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| 340 |
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// wait 60ns = 2cyc@20MHz
|
| 341 |
|
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dummy = PORTI.RESERVED_0;
|
| 342 |
|
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dummy = PORTI.RESERVED_0;
|
| 343 |
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| 344 |
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PORTO.LCDCON.BYTE = 0x04 | (rs & 0x01);
|
| 345 |
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| 346 |
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// wait 500ns = 10cyc@20MHz
|
| 347 |
|
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for (i = 0 ; i <= 10 ; i++) dummy = PORTI.RESERVED_0;
|
| 348 |
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|
|
| 349 |
|
|
PORTO.LCDCON.BYTE = 0x00 | (rs & 0x01);
|
| 350 |
|
|
|
| 351 |
|
|
// wait 500ns = 10cyc@20MHz
|
| 352 |
|
|
for (i = 0 ; i <= 10 ; i++) dummy = PORTI.RESERVED_0;
|
| 353 |
|
|
}
|
| 354 |
|
|
|
| 355 |
|
|
//==================
|
| 356 |
|
|
// LCD Initialize
|
| 357 |
|
|
//------------------
|
| 358 |
|
|
// Input : none
|
| 359 |
|
|
// Output : none
|
| 360 |
|
|
//==================
|
| 361 |
|
|
void lcd_init(void)
|
| 362 |
|
|
{
|
| 363 |
|
|
int i;
|
| 364 |
|
|
unsigned char dummy;
|
| 365 |
|
|
|
| 366 |
|
|
lcd_wr(INST, 0x30);
|
| 367 |
|
|
|
| 368 |
|
|
// wait 4100us=82000cyc@20MHz
|
| 369 |
|
|
for (i = 0 ; i < 82000 ; i++) dummy = PORTI.RESERVED_0;
|
| 370 |
|
|
|
| 371 |
|
|
lcd_wr(INST, 0x30);
|
| 372 |
|
|
|
| 373 |
|
|
// wait 100us=2000cyc@20MHz
|
| 374 |
|
|
for (i = 0 ; i < 2000 ; i++) dummy = PORTI.RESERVED_0;
|
| 375 |
|
|
|
| 376 |
|
|
lcd_wr(INST, 0x30);
|
| 377 |
|
|
|
| 378 |
|
|
// set function (8bit, 2lines)
|
| 379 |
|
|
lcd_ready();
|
| 380 |
|
|
lcd_wr(INST, 0x38);
|
| 381 |
|
|
|
| 382 |
|
|
// display (disp on, cursor off, blink off)
|
| 383 |
|
|
lcd_ready();
|
| 384 |
|
|
lcd_wr(INST, 0x0c);
|
| 385 |
|
|
|
| 386 |
|
|
// clear
|
| 387 |
|
|
lcd_ready();
|
| 388 |
|
|
lcd_wr(INST, 0x01);
|
| 389 |
|
|
|
| 390 |
|
|
// entry mode (increment, no-shift)
|
| 391 |
|
|
lcd_ready();
|
| 392 |
|
|
lcd_wr(INST, 0x06);
|
| 393 |
|
|
}
|
| 394 |
|
|
|
| 395 |
|
|
//===============
|
| 396 |
|
|
// End of Program
|
| 397 |
|
|
//===============
|
