Diff: main.cpp

Revision:

0:08c20170ad75

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Dec 25 04:44:02 2014 +0000
@@ -0,0 +1,133 @@
+#include <ctype.h>
+#include "mbed.h"
+#include "serial_api.h"
+#include "SPI_M25PE20.h"
+
+// SPI_M25PE20(PinName mosi, PinName miso, PinName sclk, PinName cs) ;
+// FRDM_KL25Z
+// D13 SPI0_SCK  (PTD1)
+// D12 SPI0_MISO (PTD3) 
+// D11 SPI0_MOSI (PTD2)
+// D10 SPI0_PCS0 (PTD0)
+SPI_M25PE20 spi_mem(PTD2, PTD3, PTD1, PTD0) ;
+
+void usage(void)
+{
+    printf("=== commands ===\n\r") ;
+    printf("read  address       (ex: read 0x0000)\n\r") ;
+    printf("dump  address       (ex: dump 0x2000)\n\r") ;
+    printf("rdsr                (read status register)\n\r") ;
+    printf("wren                (write enable)\n\r") ;
+    printf("wrdi                (write disable)\n\r") ;
+    printf("write address value (program a 8bit data to the address)\n\r") ;
+    printf("pp    address       (program page: ex pp 0x00)\n\r") ;
+    printf("pe                  (page erase)\n\r") ;
+    printf("se                  (sector erase)\n\r") ;
+    printf("\n\r") ;
+}
+
+void dump(unsigned long address)
+{
+    unsigned int i, j ;
+    unsigned char data[0x10] ;
+    
+    printf("       : ") ;
+    for (i = 0 ; i < 0x10 ; i++ ) {
+        printf("+%X ",i) ;
+    }
+    printf("\n\r") ;
+    for (j = 0 ; j < 0x10 ; j++ ) {
+        printf("%06X : ", address + (0x10 * j)) ; 
+        for (i = 0 ; i < 0x10 ; i++ ) {
+            data[i] = spi_mem.read8(address + 0x10 * j + i) ;
+            printf("%02X ", data[i]) ;
+        }
+        printf(": ") ;
+        for (i = 0 ; i < 0x10 ; i++ ) {
+            if (isprint(data[i])) {
+                printf("%c", data[i]) ;
+            } else {
+                printf(".") ;
+            }
+        }
+        printf(" :\n\r") ;
+    }
+    printf("\n\r") ;
+}    
+
+int main() {
+    char cmd[32] ;
+    int tmp = 0 ;
+    int i ;
+    int numData = 256 ;
+    unsigned long address = 0 ;
+    unsigned char data[256] ;
+    
+   extern serial_t stdio_uart ;
+   serial_baud(&stdio_uart, 115200) ;
+    
+    printf("\n\r============================\n\r") ;
+    printf("M25PE20 test program\n\r") ;
+    printf("please enable local echo\n\r") ;
+    printf("============================\n\r") ;
+    printf("\n\r") ;
+    usage() ;
+    
+    while(1) {
+        printf("> ") ;
+        scanf("%s", cmd) ;
+        if (strcmp(cmd, "read") == 0) {
+            scanf("%X", &address) ;
+            data[0] = spi_mem.read8(address) ;
+            printf("%08X : 0x%02X\n\r", address, data[0]) ;
+        } else if (strcmp(cmd, "rdsr") == 0) { // read status
+            data[0] = spi_mem.readStatus() ;
+            printf("status register = 0x%02X\n\r", data[0]) ;
+        } else if (strcmp(cmd, "wren") == 0) { // write enable
+            spi_mem.writeEnable() ;
+            printf("done\n\r") ;
+        } else if (strcmp(cmd, "wrdi") == 0) { // write disable
+            spi_mem.writeDisable() ;
+            printf("done\n\r") ;
+        } else if (strcmp(cmd, "write") == 0) { // write a byte 
+            scanf("%X", &address) ;
+            scanf("%X", &tmp) ;
+            data[0] = tmp & 0xFF ;
+            printf("mem[0x%06X] <= 0x%02X\n\r",address, data[0]) ;
+            spi_mem.writeEnable() ;
+            spi_mem.programPage(address, data, 1) ;
+            printf("done\n\r") ;
+        } else if (strcmp(cmd, "pp") == 0) { // program page
+            scanf("%X", &address) ;
+            printf("writing %d bytes to 0x%X\n\r",numData, address) ;
+            spi_mem.writeEnable() ;
+            for (i = 0 ; i < numData ; i++ ) {
+                data[i] = i & 0xFF ;
+            }
+            spi_mem.programPage(address, data, numData) ;
+            data[0] = 0 ;
+            while((data[0] & 0x01) != 0x01 ) {
+                printf(".") ;
+                data[0] = spi_mem.readStatus() ;
+                wait(0.01) ;
+            }
+            printf("\n\r") ;
+        } else if (strcmp(cmd, "pe") == 0) {
+            spi_mem.writeEnable() ;
+            scanf("%X", &address) ;
+            spi_mem.pageErase(address) ;
+        } else if (strcmp(cmd, "se") == 0) {
+            spi_mem.writeEnable() ;
+            scanf("%X", &address) ;
+            spi_mem.sectorErase(address) ;
+        } else if (strcmp(cmd, "dump") == 0) {
+            scanf("%X", &address) ;
+            dump(address) ;
+        } else if (strcmp(cmd, "help") == 0) {
+            usage() ;
+        } else {
+            printf("Unknown command [ %s ]\n\r", cmd) ;
+            usage() ;
+        }
+    }
+}