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Subversion Repositories hf-risc

[/] [hf-risc/] [trunk/] [software/] [boot/] [monitor.c] - Blame information for rev 13

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#include <hf-risc.h>
 
/* memory mapped I/O access */
#define MemoryRead(A)                   (*(volatile unsigned int*)(A))
#define MemoryWrite(A,V)                *(volatile unsigned int*)(A)=(V)
 
/* SPI interface - EXTIO_OUT pins 0 (chip select), 1 (clock), 2 (master output) and 3 (chip select 2) */
#define SPI_CS          0x01
#define SPI_SCK         0x02
#define SPI_MOSI        0x04
#define SPI_CS2         0x08
 
/* SPI interface - EXIO_IN pin 3 (master input) */
#define SPI_MISO        0x08
 
/* EEPROM config / commands */
#define PAGE_SIZE       64
#define CMD_READ        0x03
#define CMD_WRITE       0x02
#define CMD_WREN        0x06
 
/*
monitor auxiliry routines
*/
 
uint32_t getnum(void){
        int32_t i;
        uint32_t ch, ch2, value=0;
 
        for(i = 0; i < 16; ){
                ch = ch2 = getchar();
                if(ch == '\n' || ch == '\r')
                        break;
                if('0' <= ch && ch <= '9')
                        ch -= '0';
                else if('A' <= ch && ch <= 'Z')
                        ch = ch - 'A' + 10;
                else if('a' <= ch && ch <= 'z')
                        ch = ch - 'a' + 10;
                else if(ch == 8){
                        if(i > 0){
                                --i;
                                putchar(ch);
                                putchar(' ');
                                putchar(ch);
                        }
                        value >>= 4;
                        continue;
                }
                putchar(ch2);
                value = (value << 4) + ch;
                ++i;
        }
        return value;
}
 
void printnum(uint32_t n){
        int8_t buf[30];
        uint16_t i;
 
        itoa(n, buf, 10);
        i = 0;
        while (buf[i]) putchar(buf[i++]);
}
 
void printhex(uint32_t n){
        int8_t buf[30];
        uint16_t i;
 
        if (n < 16) putchar('0');
        itoa(n, buf, 16);
        i = 0;
        while (buf[i]) putchar(buf[i++]);
}
 
int32_t printstr(const int8_t *str){
        while(*str)
                putchar(*str++);
 
        return 0;
}
 
/*
SPI low level interface driver, mode 0
*/
 
void spi_setup(void){
        EXTIO_OUT |= SPI_CS | SPI_CS2;
        EXTIO_OUT &= ~SPI_SCK;
}
 
void spi_start(void){
        EXTIO_OUT &= ~SPI_CS2;
}
 
void spi_stop(void){
        EXTIO_OUT |= SPI_CS2;
}
 
int8_t spi_sendrecv(int8_t data){
        int32_t i;
        int8_t newdata = 0;
 
        for (i = 0; i < 8; i++){
                if (data & 0x80){
                        EXTIO_OUT |= SPI_MOSI;
                }else{
                        EXTIO_OUT &= ~SPI_MOSI;
                }
                data <<= 1;
                EXTIO_OUT |= SPI_SCK;
                newdata <<= 1;
                newdata |= ((EXTIO_IN & SPI_MISO) ? 1 : 0);
                EXTIO_OUT &= ~SPI_SCK;
        }
        return newdata;
}
 
/*
SPI EEPROM driver
EEPROM should be a 25lc128 (16KB) or 25lc256 (32KB) compatible chip!
if you need a different ROM size / configuration, change PAGE_SIZE accordingly.
*/
 
uint8_t spi_eeprom_readbyte(uint16_t addr){
        uint8_t data;
 
        spi_start();
        spi_sendrecv(CMD_READ);
        spi_sendrecv(addr >> 8);
        spi_sendrecv(addr & 0xff);
        data = spi_sendrecv(0);
        spi_stop();
 
        return data;
}
 
void spi_eeprom_read(uint16_t addr, uint8_t *buf, uint16_t size){
        uint8_t data;
        uint16_t i;
 
        spi_start();
        spi_sendrecv(CMD_READ);
        spi_sendrecv(addr >> 8);
        spi_sendrecv(addr & 0xff);
        for(i = 0; i < size; i++)
                buf[i] = spi_sendrecv(0);
        spi_stop();
}
 
void spi_eeprom_writepage(uint16_t page, uint8_t *data){
        uint16_t i;
 
        spi_start();
        spi_sendrecv(CMD_WREN);
        spi_stop();
        spi_start();
        spi_sendrecv(CMD_WRITE);
        spi_sendrecv((page * PAGE_SIZE) >> 8);
        spi_sendrecv((page * PAGE_SIZE) & 0xff);
        for (i = 0; i < PAGE_SIZE; i++)
                spi_sendrecv(data[i]);
        spi_stop();
        delay_ms(10);
}
 
void boot_spi(void){
        uint32_t signature, size;
        uint8_t *ptr1;
        funcptr funcPtr;
/*
        -initialize SPI, mode 0;
        -try to read a 4 byte signature (0xb16b00b5). on fail (no eeprom, no valid data or no jumper) return to monitor;
        -read image size on next 4 bytes (e.g: 2350 bytes will be 0x0000092e;
        -copy ROM data to RAM, starting at 0x40000000
        -jump to 0x40000000
*/
        spi_setup();
        signature = (spi_eeprom_readbyte(0) << 24) | (spi_eeprom_readbyte(1) << 16) | (spi_eeprom_readbyte(2) << 8) | spi_eeprom_readbyte(3);
        if (signature != 0xb16b00b5) return;
        size = (spi_eeprom_readbyte(4) << 24) | (spi_eeprom_readbyte(5) << 16) | (spi_eeprom_readbyte(6) << 8) | spi_eeprom_readbyte(7);
        ptr1 = (uint8_t *)ADDR_RAM_BASE;
        // skip header and copy EEPROM data to RAM
        spi_eeprom_read(8, ptr1, size);
        funcPtr = (funcptr)ADDR_RAM_BASE;
        funcPtr((void *)0);
}
 
/*
monitor main program.
we are using the last portion of SRAM as the program stack!
*/
 
int32_t main(void){
        int32_t i, j, k, l, ch;
        uint32_t addr, addr2, value, size = 0;
        funcptr funcPtr;
        uint32_t *ptr;
        uint8_t *ptr1;
        uint8_t eeprom_page[PAGE_SIZE];
 
        uart_init(57600);
 
        boot_spi();
 
        printstr("\nHF-RISC bootloader - ");
        printstr(__DATE__);
        printstr("\n");
 
        for(;;){
                printstr("\n[u, U] upload binary");
                printstr("\n[b, B] boot ");
                printstr("\n[p   ] program EEPROM");
                printstr("\n[d   ] mem dump");
                printstr("\n[f   ] mem fill");
                printstr("\n[w   ] write data");
                printstr("\n");
                ch = getchar();
                getchar();
 
                switch(ch){
                        case 'u':
                                ptr1 = (uint8_t *)ADDR_RAM_BASE;
                                goto waiting;
                        case 'U':
                                printstr("\naddress (hex):");
                                addr = getnum();
                                ptr1 = (uint8_t *)addr;
                        waiting:
                                printstr("\nwaiting for binary...");
                                ch = getchar();
                                for(i = 0; ; i++){
                                        ptr1[i] = (uint8_t)ch;
                                        for(j = 0; j < (CPU_SPEED / 100); j++){
                                                if(kbhit()){
                                                        ch = getchar();
                                                        break;
                                                }
                                        }
                                        if (j >= (CPU_SPEED / 100)) break;
                                        if ((i % 1024) == 0) putchar('*');
                                }
                                i++;
                                printstr("--> ");
                                printnum(i);
                                printstr(" bytes");
                                size = i;
                                break;
                        case 'b':
                                funcPtr = (funcptr)ADDR_RAM_BASE;
                                goto booting;
                        case 'B':
                                printstr("\naddress (hex):");
                                addr = getnum();
                                funcPtr = (funcptr)addr;
                        booting:
                                printstr("\nboot\n");
                                funcPtr((void *)0);
                                break;
                        case 'p':
                                if (!size) break;
                                ptr1 = (uint8_t *)ADDR_RAM_BASE;
                                printstr("\nprogramming "); printnum(size); printstr(" bytes");
                                // signature
                                eeprom_page[0] = 0xb1; eeprom_page[1] = 0x6b; eeprom_page[2] = 0x00; eeprom_page[3] = 0xb5;
                                // image size
                                eeprom_page[4] = (size >> 24) & 0xff;
                                eeprom_page[5] = (size >> 16) & 0xff;
                                eeprom_page[6] = (size >> 8) & 0xff;
                                eeprom_page[7] = size & 0xff;
 
                                // first page
                                i = 0; k = 0;
                                for (j = 8; j < PAGE_SIZE; j++){
                                        if (i < size){
                                                eeprom_page[j] = ptr1[i++];
                                        }else{
                                                eeprom_page[j] = 0x00;
                                        }
                                }
                                spi_eeprom_writepage(k, eeprom_page);
                                // next pages
                                while(i < size){
                                        k++;
                                        for (j = 0; j < PAGE_SIZE; j++){
                                                if (i < size){
                                                        eeprom_page[j] = ptr1[i++];
                                                }else{
                                                        eeprom_page[j] = 0x00;
                                                }
                                        }
                                        spi_eeprom_writepage(k, eeprom_page);
                                }
                                break;
                        case 'd':
                                printstr("\naddress (hex):");
                                addr = getnum();
                                ptr1 = (uint8_t *)addr;
                                printstr("\nlength (hex):");
                                i = getnum();
                                for(k = 0; k < i; k += 16){
                                        printstr("\n");
                                        printhex(addr + k);
                                        printstr("  ");
                                        for(l = 0; l < 16; l++){
                                                printhex(ptr1[k+l]);
                                                printstr(" ");
                                                if (l == 7) printstr(" ");
                                        }
                                        printstr(" |");
                                        for(l = 0; l < 16; l++){
                                                ch = ptr1[k+l];
                                                if ((ch >= 32) && (ch <= 126))
                                                        putchar((uint8_t)ch);
                                                else
                                                        printstr(".");
                                        }
                                        printstr("|");
                                }
                                break;
                        case 'f':
                                printstr("\naddress (hex):");
                                addr = getnum();
                                ptr1 = (uint8_t *)addr;
                                printstr("\nlength (hex):");
                                i = getnum();
                                printstr("\nbyte (hex):");
                                ch = (uint8_t)getnum();
                                for (l = 0; l < i; l++)
                                        ptr1[l] = ch;
                                break;
                        case 'w':
                                printstr("\naddress (hex):");
                                addr = getnum();
                                printstr("\ndata (hex):");
                                value = getnum();
                                MemoryWrite(addr, value);
                                break;
                        default:
                                break;
                }
        }
 
        return 0;
}
 

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Subversion Repositories hf-risc

[/] [hf-risc/] [trunk/] [software/] [boot/] [monitor.c] - Blame information for rev 13

Line No.	Rev	Author	Line
1	13	serginhofr	`#include <hf-risc.h>`
2
3			`/* memory mapped I/O access */`
4			`#define MemoryRead(A) ((volatile unsigned int)(A))`
5			`#define MemoryWrite(A,V) (volatile unsigned int)(A)=(V)`
6
7			`/* SPI interface - EXTIO_OUT pins 0 (chip select), 1 (clock), 2 (master output) and 3 (chip select 2) */`
8			`#define SPI_CS 0x01`
9			`#define SPI_SCK 0x02`
10			`#define SPI_MOSI 0x04`
11			`#define SPI_CS2 0x08`
12
13			`/* SPI interface - EXIO_IN pin 3 (master input) */`
14			`#define SPI_MISO 0x08`
15
16			`/* EEPROM config / commands */`
17			`#define PAGE_SIZE 64`
18			`#define CMD_READ 0x03`
19			`#define CMD_WRITE 0x02`
20			`#define CMD_WREN 0x06`
21
22			`/*`
23			`monitor auxiliry routines`
24			`*/`
25
26			`uint32_t getnum(void){`
27			`int32_t i;`
28			`uint32_t ch, ch2, value=0;`
29
30			`for(i = 0; i < 16; ){`
31			`ch = ch2 = getchar();`
32			`if(ch == '\n' \|\| ch == '\r')`
33			`break;`
34			`if('0' <= ch && ch <= '9')`
35			`ch -= '0';`
36			`else if('A' <= ch && ch <= 'Z')`
37			`ch = ch - 'A' + 10;`
38			`else if('a' <= ch && ch <= 'z')`
39			`ch = ch - 'a' + 10;`
40			`else if(ch == 8){`
41			`if(i > 0){`
42			`--i;`
43			`putchar(ch);`
44			`putchar(' ');`
45			`putchar(ch);`
46			`}`
47			`value >>= 4;`
48			`continue;`
49			`}`
50			`putchar(ch2);`
51			`value = (value << 4) + ch;`
52			`++i;`
53			`}`
54			`return value;`
55			`}`
56
57			`void printnum(uint32_t n){`
58			`int8_t buf[30];`
59			`uint16_t i;`
60
61			`itoa(n, buf, 10);`
62			`i = 0;`
63			`while (buf[i]) putchar(buf[i++]);`
64			`}`
65
66			`void printhex(uint32_t n){`
67			`int8_t buf[30];`
68			`uint16_t i;`
69
70			`if (n < 16) putchar('0');`
71			`itoa(n, buf, 16);`
72			`i = 0;`
73			`while (buf[i]) putchar(buf[i++]);`
74			`}`
75
76			`int32_t printstr(const int8_t *str){`
77			`while(*str)`
78			`putchar(*str++);`
79
80			`return 0;`
81			`}`
82
83			`/*`
84			`SPI low level interface driver, mode 0`
85			`*/`
86
87			`void spi_setup(void){`
88			`EXTIO_OUT \|= SPI_CS \| SPI_CS2;`
89			`EXTIO_OUT &= ~SPI_SCK;`
90			`}`
91
92			`void spi_start(void){`
93			`EXTIO_OUT &= ~SPI_CS2;`
94			`}`
95
96			`void spi_stop(void){`
97			`EXTIO_OUT \|= SPI_CS2;`
98			`}`
99
100			`int8_t spi_sendrecv(int8_t data){`
101			`int32_t i;`
102			`int8_t newdata = 0;`
103
104			`for (i = 0; i < 8; i++){`
105			`if (data & 0x80){`
106			`EXTIO_OUT \|= SPI_MOSI;`
107			`}else{`
108			`EXTIO_OUT &= ~SPI_MOSI;`
109			`}`
110			`data <<= 1;`
111			`EXTIO_OUT \|= SPI_SCK;`
112			`newdata <<= 1;`
113			`newdata \|= ((EXTIO_IN & SPI_MISO) ? 1 : 0);`
114			`EXTIO_OUT &= ~SPI_SCK;`
115			`}`
116			`return newdata;`
117			`}`
118
119			`/*`
120			`SPI EEPROM driver`
121			`EEPROM should be a 25lc128 (16KB) or 25lc256 (32KB) compatible chip!`
122			`if you need a different ROM size / configuration, change PAGE_SIZE accordingly.`
123			`*/`
124
125			`uint8_t spi_eeprom_readbyte(uint16_t addr){`
126			`uint8_t data;`
127
128			`spi_start();`
129			`spi_sendrecv(CMD_READ);`
130			`spi_sendrecv(addr >> 8);`
131			`spi_sendrecv(addr & 0xff);`
132			`data = spi_sendrecv(0);`
133			`spi_stop();`
134
135			`return data;`
136			`}`
137
138			`void spi_eeprom_read(uint16_t addr, uint8_t *buf, uint16_t size){`
139			`uint8_t data;`
140			`uint16_t i;`
141
142			`spi_start();`
143			`spi_sendrecv(CMD_READ);`
144			`spi_sendrecv(addr >> 8);`
145			`spi_sendrecv(addr & 0xff);`
146			`for(i = 0; i < size; i++)`
147			`buf[i] = spi_sendrecv(0);`
148			`spi_stop();`
149			`}`
150
151			`void spi_eeprom_writepage(uint16_t page, uint8_t *data){`
152			`uint16_t i;`
153
154			`spi_start();`
155			`spi_sendrecv(CMD_WREN);`
156			`spi_stop();`
157			`spi_start();`
158			`spi_sendrecv(CMD_WRITE);`
159			`spi_sendrecv((page * PAGE_SIZE) >> 8);`
160			`spi_sendrecv((page * PAGE_SIZE) & 0xff);`
161			`for (i = 0; i < PAGE_SIZE; i++)`
162			`spi_sendrecv(data[i]);`
163			`spi_stop();`
164			`delay_ms(10);`
165			`}`
166
167			`void boot_spi(void){`
168			`uint32_t signature, size;`
169			`uint8_t *ptr1;`
170			`funcptr funcPtr;`
171			`/*`
172			`-initialize SPI, mode 0;`
173			`-try to read a 4 byte signature (0xb16b00b5). on fail (no eeprom, no valid data or no jumper) return to monitor;`
174			`-read image size on next 4 bytes (e.g: 2350 bytes will be 0x0000092e;`
175			`-copy ROM data to RAM, starting at 0x40000000`
176			`-jump to 0x40000000`
177			`*/`
178			`spi_setup();`
179			`signature = (spi_eeprom_readbyte(0) << 24) \| (spi_eeprom_readbyte(1) << 16) \| (spi_eeprom_readbyte(2) << 8) \| spi_eeprom_readbyte(3);`
180			`if (signature != 0xb16b00b5) return;`
181			`size = (spi_eeprom_readbyte(4) << 24) \| (spi_eeprom_readbyte(5) << 16) \| (spi_eeprom_readbyte(6) << 8) \| spi_eeprom_readbyte(7);`
182			`ptr1 = (uint8_t *)ADDR_RAM_BASE;`
183			`// skip header and copy EEPROM data to RAM`
184			`spi_eeprom_read(8, ptr1, size);`
185			`funcPtr = (funcptr)ADDR_RAM_BASE;`
186			`funcPtr((void *)0);`
187			`}`
188
189			`/*`
190			`monitor main program.`
191			`we are using the last portion of SRAM as the program stack!`
192			`*/`
193
194			`int32_t main(void){`
195			`int32_t i, j, k, l, ch;`
196			`uint32_t addr, addr2, value, size = 0;`
197			`funcptr funcPtr;`
198			`uint32_t *ptr;`
199			`uint8_t *ptr1;`
200			`uint8_t eeprom_page[PAGE_SIZE];`
201
202			`uart_init(57600);`
203
204			`boot_spi();`
205
206			`printstr("\nHF-RISC bootloader - ");`
207			`printstr(__DATE__);`
208			`printstr("\n");`
209
210			`for(;;){`
211			`printstr("\n[u, U] upload binary");`
212			`printstr("\n[b, B] boot ");`
213			`printstr("\n[p ] program EEPROM");`
214			`printstr("\n[d ] mem dump");`
215			`printstr("\n[f ] mem fill");`
216			`printstr("\n[w ] write data");`
217			`printstr("\n");`
218			`ch = getchar();`
219			`getchar();`
220
221			`switch(ch){`
222			`case 'u':`
223			`ptr1 = (uint8_t *)ADDR_RAM_BASE;`
224			`goto waiting;`
225			`case 'U':`
226			`printstr("\naddress (hex):");`
227			`addr = getnum();`
228			`ptr1 = (uint8_t *)addr;`
229			`waiting:`
230			`printstr("\nwaiting for binary...");`
231			`ch = getchar();`
232			`for(i = 0; ; i++){`
233			`ptr1[i] = (uint8_t)ch;`
234			`for(j = 0; j < (CPU_SPEED / 100); j++){`
235			`if(kbhit()){`
236			`ch = getchar();`
237			`break;`
238			`}`
239			`}`
240			`if (j >= (CPU_SPEED / 100)) break;`
241			`if ((i % 1024) == 0) putchar('*');`
242			`}`
243			`i++;`
244			`printstr("--> ");`
245			`printnum(i);`
246			`printstr(" bytes");`
247			`size = i;`
248			`break;`
249			`case 'b':`
250			`funcPtr = (funcptr)ADDR_RAM_BASE;`
251			`goto booting;`
252			`case 'B':`
253			`printstr("\naddress (hex):");`
254			`addr = getnum();`
255			`funcPtr = (funcptr)addr;`
256			`booting:`
257			`printstr("\nboot\n");`
258			`funcPtr((void *)0);`
259			`break;`
260			`case 'p':`
261			`if (!size) break;`
262			`ptr1 = (uint8_t *)ADDR_RAM_BASE;`
263			`printstr("\nprogramming "); printnum(size); printstr(" bytes");`
264			`// signature`
265			`eeprom_page[0] = 0xb1; eeprom_page[1] = 0x6b; eeprom_page[2] = 0x00; eeprom_page[3] = 0xb5;`
266			`// image size`
267			`eeprom_page[4] = (size >> 24) & 0xff;`
268			`eeprom_page[5] = (size >> 16) & 0xff;`
269			`eeprom_page[6] = (size >> 8) & 0xff;`
270			`eeprom_page[7] = size & 0xff;`
271
272			`// first page`
273			`i = 0; k = 0;`
274			`for (j = 8; j < PAGE_SIZE; j++){`
275			`if (i < size){`
276			`eeprom_page[j] = ptr1[i++];`
277			`}else{`
278			`eeprom_page[j] = 0x00;`
279			`}`
280			`}`
281			`spi_eeprom_writepage(k, eeprom_page);`
282			`// next pages`
283			`while(i < size){`
284			`k++;`
285			`for (j = 0; j < PAGE_SIZE; j++){`
286			`if (i < size){`
287			`eeprom_page[j] = ptr1[i++];`
288			`}else{`
289			`eeprom_page[j] = 0x00;`
290			`}`
291			`}`
292			`spi_eeprom_writepage(k, eeprom_page);`
293			`}`
294			`break;`
295			`case 'd':`
296			`printstr("\naddress (hex):");`
297			`addr = getnum();`
298			`ptr1 = (uint8_t *)addr;`
299			`printstr("\nlength (hex):");`
300			`i = getnum();`
301			`for(k = 0; k < i; k += 16){`
302			`printstr("\n");`
303			`printhex(addr + k);`
304			`printstr(" ");`
305			`for(l = 0; l < 16; l++){`
306			`printhex(ptr1[k+l]);`
307			`printstr(" ");`
308			`if (l == 7) printstr(" ");`
309			`}`
310			`printstr(" \|");`
311			`for(l = 0; l < 16; l++){`
312			`ch = ptr1[k+l];`
313			`if ((ch >= 32) && (ch <= 126))`
314			`putchar((uint8_t)ch);`
315			`else`
316			`printstr(".");`
317			`}`
318			`printstr("\|");`
319			`}`
320			`break;`
321			`case 'f':`
322			`printstr("\naddress (hex):");`
323			`addr = getnum();`
324			`ptr1 = (uint8_t *)addr;`
325			`printstr("\nlength (hex):");`
326			`i = getnum();`
327			`printstr("\nbyte (hex):");`
328			`ch = (uint8_t)getnum();`
329			`for (l = 0; l < i; l++)`
330			`ptr1[l] = ch;`
331			`break;`
332			`case 'w':`
333			`printstr("\naddress (hex):");`
334			`addr = getnum();`
335			`printstr("\ndata (hex):");`
336			`value = getnum();`
337			`MemoryWrite(addr, value);`
338			`break;`
339			`default:`
340			`break;`
341			`}`
342			`}`
343
344			`return 0;`
345			`}`
346