Hardware Design: SIE
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| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include "fcntl.h" |
| 4 | #include <sys/mman.h> |
| 5 | #include <xburst.h> |
| 6 | #include "jz47xx_gpio.h" |
| 7 | #include <jz47xx_mmap.h> |
| 8 | |
| 9 | #define CS2_PORT JZ_GPIO_PORT_B |
| 10 | #define CS2_PIN 26 |
| 11 | |
| 12 | int periph_map(off_t offset) |
| 13 | { |
| 14 | int basemem, baseperiph; |
| 15 | basemem = open("/dev/mem", (O_RDWR | O_SYNC)); //abrir dispositivo memoria para mapear dir del periferico |
| 16 | if(basemem == -1) |
| 17 | { |
| 18 | printf("Error to open /dev/mem \n"); |
| 19 | return -1; |
| 20 | } |
| 21 | baseperiph = (int )mmap(NULL, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, basemem, offset);// & ~MAP_MASK); |
| 22 | if (baseperiph == -1) |
| 23 | { |
| 24 | printf ("Cannot mmap.\n"); |
| 25 | return -1; |
| 26 | } |
| 27 | return baseperiph; |
| 28 | } |
| 29 | |
| 30 | |
| 31 | int main(){ |
| 32 | int i, j; |
| 33 | int basemem, base_periferico, *ConfigRegsBase_ptr; |
| 34 | void *peripheral1_ptr; |
| 35 | void *pio; |
| 36 | |
| 37 | printf("Xburst Test..."); |
| 38 | |
| 39 | basemem = open("/dev/mem", (O_RDWR | O_SYNC)); //abrir dispositivo memoria para mapear dir del periferico |
| 40 | if(basemem == -1) |
| 41 | { |
| 42 | printf("Error al abrir /dev/mem \n"); |
| 43 | return -1; |
| 44 | } |
| 45 | |
| 46 | pio = jz_gpio_map(CS2_PORT); |
| 47 | jz_gpio_as_func (pio, CS2_PIN, 0); |
| 48 | |
| 49 | ConfigRegsBase_ptr = (int *)periph_map(CONFIG_REGS_BASE);// + SACR2_OFFSET/sizeof(int);//SMCR2_OFFSET/sizeof(int); |
| 50 | printf("\n%0x ", *(ConfigRegsBase_ptr + SMCR2_OFFSET/sizeof(int))); |
| 51 | munmap(ConfigRegsBase_ptr, MAP_SIZE); |
| 52 | |
| 53 | peripheral1_ptr = (int *)periph_map(0x14000000); |
| 54 | |
| 55 | for(i = 0; i < 0xfff; i=i+4){ |
| 56 | j = rand(); |
| 57 | // *(int *)(peripheral1_ptr + i) = j; |
| 58 | // if(j != *(int *)(peripheral1_ptr + i)){ |
| 59 | // printf("\nError at %0x offset:%i\n", (int *)(peripheral1_ptr + i), i); exit(0); |
| 60 | // } |
| 61 | printf("\nReg %i: write:%0x read:%0x", i, j, *(int *)(peripheral1_ptr + i) ); |
| 62 | } |
| 63 | printf("\nPassed Test\n"); |
| 64 | munmap(peripheral1_ptr, MAP_SIZE); |
| 65 | |
| 66 | //munmap(base_periferico, MAP_SIZE); |
| 67 | close(basemem); |
| 68 | exit(0); |
| 69 | } |
| 70 | |
| 71 |
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