📄 nf_drv.lst
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C51 COMPILER V7.09 NF_DRV 09/25/2008 11:56:14 PAGE 1
C51 COMPILER V7.09, COMPILATION OF MODULE NF_DRV
OBJECT MODULE PLACED IN .\output\bin\nf_drv.obj
COMPILER INVOKED BY: C:\Keil709\C51\BIN\C51.EXE flash\nf_drv.c LARGE BROWSE INCDIR(audio\;eeprom\;extendUART\;flash\;gps
-\;inter\;key\;mcu\;menu\;usb\;gprs\;main\;1wire\) DEBUG OBJECTEXTEND PRINT(.\output\nf_drv.lst) OBJECT(.\output\bin\nf_d
-rv.obj)
line level source
1 /*C**************************************************************************
2 * NAME: nf_drv.c
3 *----------------------------------------------------------------------------
4 * Copyright (c)
5 *----------------------------------------------------------------------------
6 * RELEASE:
7 * REVISION:
8 *----------------------------------------------------------------------------
9 * PURPOSE:
10 * This file contains the NF driver definitions
11 *****************************************************************************/
12 #include "typedef.h"
13 #include "16c554.h"
14 #include "nf_drv.h"
15 #include <intrins.h>
16
17 #define SIZEBYTE_PERLINE 20 /*bit size per bus line*/
18 #define SIZEPAGE_PERLINE 4096
19 #define SIZEBLOCK_PERLINE 6
20
21 extern Uchar volatile xdata D12_Y0;//原来的xCONTROLBYTE8K
22 extern idata Uchar D17CS;//D12_Y0的寄存器,原来的xConByte8KValue
23 extern Uchar volatile xdata D12_Y3;//原来的xFLASHCS
24 extern Uchar volatile xdata D12_Y2;//原来的xCONTROLBYTE82
25
26 unsigned long volatile xdata xCurErasedBlock;//Uint32 xdata xCurErasedBlock;
27 volatile Byte xEraseStatus;//Byte xdata xEraseStatus;
28 volatile bit halfpage;
29 #if (NF_CAPACITY_AUTO_DETECT == TRUE) /* If autodetect capacity nand flash is active */
30 Byte nf_zone_max; //xdata Byte nf_zone_max; /* nf_zone_max definition */
31 Byte nf_device_type;//xdata Byte nf_device_type; /* nf_device_type definition */
32 bdata bit nf_4_cycle_address; /* nf_4_cycle_address definition */
33 #endif
34
35 /*_____ M A C R O S ________________________________________________________*/
36
37 #ifndef NF_CAPACITY_AUTO_DETECT
#error NF_CAPACITY_AUTO_DETECT must be defined in board.h
#endif
40
41 void Test_nf_send_command(Byte command)
42 {
43 1 D17CS &= 0xdf;
44 1 D12_Y0 = D17CS;//ALE=0;
45 1 D17CS |= 0x10;
46 1 D12_Y0 = D17CS;//CLE=1;
47 1 D12_Y3 = command;
48 1 D17CS &= 0xcf;
49 1 D12_Y0 = D17CS;//ALE=0=CLE
50 1 }
51
52 void Test_nf_send_address(Byte address)
53 {
C51 COMPILER V7.09 NF_DRV 09/25/2008 11:56:14 PAGE 2
54 1 D17CS |= 0x20;
55 1 D12_Y0 = D17CS;//ALE=1
56 1 D12_Y3 = address;
57 1 D17CS &= 0xcf;
58 1 D12_Y0 = D17CS;//ALE=0=CLE
59 1 }
60
61 void Test_nf_write_open_B_area(Uint32 nRow, Byte nCol)
62 {
63 1 Test_nf_send_command(NF_READ_B_AREA_CMD);
64 1 Test_nf_send_command(NF_SEQUENTIAL_DATA_INPUT_CMD);
65 1 Test_nf_send_address(nCol);
66 1 Test_nf_send_address(((Byte*)&nRow)[3]);
67 1 Test_nf_send_address(((Byte*)&nRow)[2]);
68 1 }
69
70 void Test_nf_write_open_A_area(Uint32 nRow, Byte nCol)
71 {
72 1 Test_nf_send_command(NF_READ_A_AREA_CMD);
73 1 Test_nf_send_command(NF_SEQUENTIAL_DATA_INPUT_CMD);
74 1 Test_nf_send_address(nCol);
75 1 Test_nf_send_address(((Byte*)&nRow)[3]);
76 1 Test_nf_send_address(((Byte*)&nRow)[2]);
77 1 }
78
79 void Test_nf_write_open_C_area(Uint32 nRow, Byte nCol)
80 {
81 1 Test_nf_send_command(NF_READ_C_AREA_CMD);
82 1 Test_nf_send_command(NF_SEQUENTIAL_DATA_INPUT_CMD);
83 1 Test_nf_send_address(nCol);
84 1 Test_nf_send_address(((Byte*)&nRow)[3]);
85 1 Test_nf_send_address(((Byte*)&nRow)[2]);
86 1 }
87
88 void Test_nf_read_open_A_area(Uint32 nRow, Byte nCol)
89 {
90 1 Test_nf_send_command(NF_READ_A_AREA_CMD);
91 1 Test_nf_send_address(nCol);
92 1 Test_nf_send_address(((Byte*)&nRow)[3]);
93 1 Test_nf_send_address(((Byte*)&nRow)[2]);
94 1 Nf_wait_busy();
95 1 }
96
97 void Test_nf_read_open_B_area(Uint32 nRow, Byte nCol)
98 {
99 1 Test_nf_send_command(NF_READ_B_AREA_CMD);
100 1 Test_nf_send_address(nCol);
101 1 Test_nf_send_address(((Byte*)&nRow)[3]);
102 1 Test_nf_send_address(((Byte*)&nRow)[2]);
103 1 Nf_wait_busy();
104 1 }
105
106 void Test_nf_read_open_C_area(Uint32 nRow, Byte nCol)
107 {
108 1 Test_nf_send_command(NF_READ_C_AREA_CMD);
109 1 Test_nf_send_address(nCol);
110 1 Test_nf_send_address(((Byte*)&nRow)[3]);
111 1 Test_nf_send_address(((Byte*)&nRow)[2]);
112 1 Nf_wait_busy();
113 1 }
114
115 #define Test_nf_rd_byte(buf) ((buf) = D12_Y3)
C51 COMPILER V7.09 NF_DRV 09/25/2008 11:56:14 PAGE 3
116
117 #define Test_nf_wr_byte(buf) (D12_Y3 = (buf))
118
119
120 void nf_wp_on()
121 {
122 1 D17CS &= 0xbf;
123 1 D12_Y0 = D17CS;
124 1 }
125
126 void nf_wp_off()
127 {
128 1 D17CS |= 0x40;
129 1 D12_Y0 = D17CS;
130 1 }
131 /*******************************************
132 nlinenum: 值从0开始
133 *********************************************/
134 bit nf_check_linevalid(Uint8 nlinenum/*in*/)
135 {
136 1 Byte value1, value2;
137 1 Uint32 nAddr;
138 1 nAddr = nlinenum*SIZEPAGE_PERLINE;
139 1
140 1 Nf_wait_busy();
141 1 Test_nf_read_open_A_area(nAddr, 0x00);
142 1 Nf_wait_busy();
143 1 Test_nf_rd_byte(value1);
144 1 Test_nf_rd_byte(value2);
145 1 if ((0x55 == value1) && (0xaa == value2))
146 1 return OK;
147 1 else
148 1 return KO;
149 1 }
150
151 /*F**************************************************************************
152 * NAME: nf_check_status
153 *----------------------------------------------------------------------------
154 * PARAMS:
155 *
156 * return:
157 * NF status
158 *----------------------------------------------------------------------------
159 * PURPOSE:
160 * Check the status of the device after a program or an erase operation
161 *----------------------------------------------------------------------------
162 * EXAMPLE:
163 *----------------------------------------------------------------------------
164 * NOTE:
165 *----------------------------------------------------------------------------
166 * REQUIREMENTS:
167 * ram/xram:
168 * cycle:
169 * stack:
170 * code:
171
172 *****************************************************************************/
173 bit nf_check_status (void)
174 {
175 1 Uint8 status;
176 1 Nf_wait_busy();
177 1
C51 COMPILER V7.09 NF_DRV 09/25/2008 11:56:14 PAGE 4
178 1 Test_nf_send_command(NF_READ_STATUS_CMD);
179 1
180 1 Test_nf_rd_byte(status);
181 1
182 1
183 1 if (0x00 == (status & 0x01))
184 1 {
185 2 return OK;
186 2 }
187 1 else
188 1 {
189 2 return KO;
190 2 }
191 1 }
192
193 /*F**************************************************************************
194 * NAME: nf_block_erase
195 *----------------------------------------------------------------------------
196 * PARAMS:
197 *
198 * return:
199 * OK : erase done
200 * KO : erase not done
201 *----------------------------------------------------------------------------
202 * PURPOSE: Erase a block on Nand Flash Media
203 *----------------------------------------------------------------------------
204 * EXAMPLE:
205 *----------------------------------------------------------------------------
206 * NOTE:
207 * This function use the global variable Uint32 address
208 *----------------------------------------------------------------------------
209 * REQUIREMENTS:
210 * ram/xram:
211 * cycle:
212 * stack:
213 * code:
214 *****************************************************************************/
215 bit nf_block_erase (Uint32 pos)
216 {
217 1 Nf_wait_busy();
218 1 Test_nf_send_command(NF_READ_A_AREA_CMD);
219 1
220 1 Test_nf_send_command(NF_BLOCK_ERASE_CMD);
221 1
222 1
223 1
224 1 Test_nf_send_address(((Byte*)&pos)[2]);//[3]);
225 1 Test_nf_send_address(((Byte*)&pos)[1]);//[2]);
226 1
227 1 Test_nf_send_command(NF_BLOCK_ERASE_CONFIRM_CMD);
228 1
229 1 nf_check_status();
230 1 return OK;
231 1 }
232
233
234 /*F**************************************************************************
235 * NAME: nf_write_onepage
236 *----------------------------------------------------------------------------
237 * PARAMS:
238 * pos: the page number ,the start num is 0;//the start row address
239 * pbuf: the content to write, whose size is 512 bytes
C51 COMPILER V7.09 NF_DRV 09/25/2008 11:56:14 PAGE 5
240 * return:
241 * OK : write done
242 * KO : write not done
243 *----------------------------------------------------------------------------
244 * PURPOSE: write one on Nand Flash Media. It is only permitted to write 512 Bytes
245 * when writting on flash(our assume).
246 *----------------------------------------------------------------------------
247 * EXAMPLE:
248 *----------------------------------------------------------------------------
249 * NOTE:
250 * This function use the global variable Uint32 address
251 *----------------------------------------------------------------------------
252 * REQUIREMENTS:
253 * ram/xram:
254 * cycle:
255 * stack:
256 * code:
257 *****************************************************************************/
258 /*bit nf_write_onepage(Uint32 pos, Byte* pBuf)
259 {
260 Uint8 status = 0;
261 data Uint16 nTmp;
262
263 nTmp = pos >> 5;
264 if ((FALSE == xEraseStatus) || (xCurErasedBlock != nTmp))
265 {
266 nf_block_erase(pos<<8);
267
268 nf_check_status();
269
270 xEraseStatus = TRUE;
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