alec cohen / Mbed 2 deprecated MX25Rxx35F_Serial_NOR_Flash_Testbench

Freescale FRDM-K64F development platform with external Macronix Serial NOR Flash used to perform SPI Read, Program, and Erase.

Dependencies:   SPI_MX25R mbed

main.cpp@1:550759f64702, 2015-07-20 (annotated)

Committer:
alec1
Date:
Mon Jul 20 20:56:50 2015 +0000
Revision:
1:550759f64702
Parent:
0:b2771f496313
Child:
2:32ff86163041
Initial Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
alec1 0:b2771f496313 1 #include <ctype.h>
alec1 0:b2771f496313 2 #include "mbed.h"
alec1 0:b2771f496313 3 #include "SPI_MX25R.h"
alec1 0:b2771f496313 4 DigitalOut myled3(LED3); //Red
alec1 0:b2771f496313 5 DigitalOut myled1(LED1); //Blue
alec1 0:b2771f496313 6 DigitalOut led_green(LED_GREEN);
alec1 1:550759f64702 7 DigitalOut led_red(LED_RED);
alec1 0:b2771f496313 8
alec1 0:b2771f496313 9 // SPI_MX25R(PinName mosi, PinName miso, PinName sclk, PinName cs) ;
alec1 0:b2771f496313 10 // FRDM-K64F
alec1 0:b2771f496313 11 // D13 SPI0_SCK (PTD1) J2<12>
alec1 0:b2771f496313 12 // D12 SPI0_MISO (PTD3) J2<10>
alec1 0:b2771f496313 13 // D11 SPI0_MOSI (PTD2) J2<8>
alec1 0:b2771f496313 14 // D10 SPI0_PCS0 (PTD0) J2<6>
alec1 0:b2771f496313 15 // Vdd =3.3V = J3<4>
alec1 0:b2771f496313 16 // Gnd =0.0V = J2<14>
alec1 1:550759f64702 17 SPI_MX25R spi_mem(PTD2, PTD3, PTD1,PTD0) ;
alec1 0:b2771f496313 18
alec1 0:b2771f496313 19
alec1 1:550759f64702 20 void rdRange(unsigned long rd_start_address, unsigned long rd_end_address)
alec1 0:b2771f496313 21 {
alec1 0:b2771f496313 22 unsigned int i, j ;
alec1 0:b2771f496313 23 unsigned char data[0x10] ;
alec1 1:550759f64702 24 unsigned long current_address = rd_start_address ;
alec1 1:550759f64702 25 printf("\n\r") ;
alec1 1:550759f64702 26 printf("rd_start_address = 0x%08X\n\r", rd_start_address) ;
alec1 1:550759f64702 27 printf("rd_end_address = 0x%08X\n\r", rd_end_address) ;
alec1 1:550759f64702 28 printf("\n\r") ;
alec1 1:550759f64702 29 printf(" ") ; // print header +0 to +F
alec1 0:b2771f496313 30 for (i = 0 ; i < 0x10 ; i++ ) {
alec1 0:b2771f496313 31 printf("+%X ",i) ;
alec1 0:b2771f496313 32 }
alec1 0:b2771f496313 33 printf("\n\r") ;
alec1 1:550759f64702 34 printf(" -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --") ;
alec1 1:550759f64702 35 printf("\n\r") ;
alec1 1:550759f64702 36 for (i = rd_start_address ; current_address < rd_end_address ; i++ ) {
alec1 1:550759f64702 37 printf("%06X : ", current_address ) ; // print start address :
alec1 1:550759f64702 38 for (j = 0 ; j <= 15 ; j++ ) {
alec1 1:550759f64702 39 data[j] = spi_mem.read8(current_address ) ;
alec1 1:550759f64702 40 printf("%02X ", data[j]) ;
alec1 1:550759f64702 41 current_address = current_address + 0x01 ;
alec1 1:550759f64702 42 }
alec1 1:550759f64702 43 printf(": ") ;
alec1 0:b2771f496313 44 for (i = 0 ; i < 0x10 ; i++ ) {
alec1 1:550759f64702 45 if (isprint(data[i])) {
alec1 1:550759f64702 46 printf("%c", data[i]) ;
alec1 1:550759f64702 47 } else {
alec1 1:550759f64702 48 printf(".") ;
alec1 1:550759f64702 49 }
alec1 1:550759f64702 50 }
alec1 1:550759f64702 51 printf(" :\n\r") ;
alec1 1:550759f64702 52 }
alec1 1:550759f64702 53 printf("\n\r") ;
alec1 1:550759f64702 54 }
alec1 1:550759f64702 55
alec1 1:550759f64702 56 void rdSFDPRange(unsigned long rd_start_address, unsigned long rd_end_address)
alec1 1:550759f64702 57 {
alec1 1:550759f64702 58 unsigned int i, j ;
alec1 1:550759f64702 59 unsigned char data[0x10] ;
alec1 1:550759f64702 60 unsigned long current_address = rd_start_address ;
alec1 1:550759f64702 61 printf("\n\r") ;
alec1 1:550759f64702 62 printf("rd_start_address = 0x%08X\n\r", rd_start_address) ;
alec1 1:550759f64702 63 printf("rd_end_address = 0x%08X\n\r", rd_end_address) ;
alec1 1:550759f64702 64 printf("\n\r") ;
alec1 1:550759f64702 65 printf(" ") ; // print header +0 to +F
alec1 1:550759f64702 66 for (i = 0 ; i < 0x10 ; i++ ) {
alec1 1:550759f64702 67 printf("+%X ",i) ;
alec1 1:550759f64702 68 }
alec1 1:550759f64702 69 printf("\n\r") ;
alec1 1:550759f64702 70 printf(" -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --") ;
alec1 1:550759f64702 71 printf("\n\r") ;
alec1 1:550759f64702 72 for (i = rd_start_address ; current_address < rd_end_address ; i++ ) {
alec1 1:550759f64702 73 printf("%06X : ", current_address ) ; // print start address :
alec1 1:550759f64702 74 for (j = 0 ; j <= 15 ; j++ ) {
alec1 1:550759f64702 75 data[j] = spi_mem.readSFDP(current_address ) ;
alec1 1:550759f64702 76 printf("%02X ", data[j]) ;
alec1 1:550759f64702 77 current_address = current_address + 0x01 ;
alec1 0:b2771f496313 78 }
alec1 0:b2771f496313 79 printf(": ") ;
alec1 0:b2771f496313 80 for (i = 0 ; i < 0x10 ; i++ ) {
alec1 0:b2771f496313 81 if (isprint(data[i])) {
alec1 0:b2771f496313 82 printf("%c", data[i]) ;
alec1 0:b2771f496313 83 } else {
alec1 0:b2771f496313 84 printf(".") ;
alec1 0:b2771f496313 85 }
alec1 0:b2771f496313 86 }
alec1 0:b2771f496313 87 printf(" :\n\r") ;
alec1 0:b2771f496313 88 }
alec1 0:b2771f496313 89 printf("\n\r") ;
alec1 1:550759f64702 90 }
alec1 1:550759f64702 91
alec1 1:550759f64702 92 void rdFREADRange(unsigned long rd_start_address, unsigned long rd_end_address)
alec1 1:550759f64702 93 {
alec1 1:550759f64702 94 unsigned int i, j ;
alec1 1:550759f64702 95 unsigned char data[0x10] ;
alec1 1:550759f64702 96 unsigned long current_address = rd_start_address ;
alec1 1:550759f64702 97 printf("\n\r") ;
alec1 1:550759f64702 98 printf("rd_start_address = 0x%08X\n\r", rd_start_address) ;
alec1 1:550759f64702 99 printf("rd_end_address = 0x%08X\n\r", rd_end_address) ;
alec1 1:550759f64702 100 printf("\n\r") ;
alec1 1:550759f64702 101 printf(" ") ; // print header +0 to +F
alec1 1:550759f64702 102 for (i = 0 ; i < 0x10 ; i++ ) {
alec1 1:550759f64702 103 printf("+%X ",i) ;
alec1 1:550759f64702 104 }
alec1 1:550759f64702 105 printf("\n\r") ;
alec1 1:550759f64702 106 printf(" -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --") ;
alec1 1:550759f64702 107 printf("\n\r") ;
alec1 1:550759f64702 108 for (i = rd_start_address ; current_address < rd_end_address ; i++ ) {
alec1 1:550759f64702 109 printf("%06X : ", current_address ) ; // print start address :
alec1 1:550759f64702 110 for (j = 0 ; j <= 15 ; j++ ) {
alec1 1:550759f64702 111 data[j] = spi_mem.readFREAD(current_address ) ;
alec1 1:550759f64702 112 printf("%02X ", data[j]) ;
alec1 1:550759f64702 113 current_address = current_address + 0x01 ;
alec1 1:550759f64702 114 }
alec1 1:550759f64702 115 printf(": ") ;
alec1 1:550759f64702 116 for (i = 0 ; i < 0x10 ; i++ ) {
alec1 1:550759f64702 117 if (isprint(data[i])) {
alec1 1:550759f64702 118 printf("%c", data[i]) ;
alec1 1:550759f64702 119 } else {
alec1 1:550759f64702 120 printf(".") ;
alec1 1:550759f64702 121 }
alec1 1:550759f64702 122 }
alec1 1:550759f64702 123 printf(" :\n\r") ;
alec1 1:550759f64702 124 }
alec1 1:550759f64702 125 printf("\n\r") ;
alec1 1:550759f64702 126 }
alec1 1:550759f64702 127
alec1 1:550759f64702 128 void commandMenu(void) // TeraTerm Display (Enable Terminal Local Echo On).
alec1 1:550759f64702 129 {
alec1 1:550759f64702 130 printf("== Commands =========== (Comments) ===============================================\n\r") ;
alec1 1:550759f64702 131 printf("\n\r") ;
alec1 1:550759f64702 132 printf(" wren (Write Enable, set WEL=1, 06h)\n\r") ;
alec1 1:550759f64702 133 printf(" wrdi (Write Disable, set WEL=0, 04h)\n\r") ;
alec1 1:550759f64702 134 printf(" rdid (Read Manu and Dev ID, 9Fh)\n\r") ;
alec1 1:550759f64702 135 printf(" rdsr (Read Status Register, 05h)\n\r") ;
alec1 1:550759f64702 136 printf(" rdcr (Read Config Register, 15h)\n\r") ;
alec1 1:550759f64702 137 printf(" reset (ResetEnable + SoftwareReset = 66h + 99h)\n\r") ;
alec1 1:550759f64702 138 printf(" hp (Enter HP mode = WREN=06h + WRSR= 01h 000002h)\n\r") ;
alec1 1:550759f64702 139 printf(" lp (Enter LP mode = WREN=06h + WRSR= 01h 000000h)\n\r") ;
alec1 1:550759f64702 140 printf(" enso (Enter Secure OTP Area, B1h)\n\r") ;
alec1 1:550759f64702 141 printf(" exso (Exit Secure OTP Area, C1h)\n\r") ;
alec1 1:550759f64702 142 printf(" wrsr data_3B (Write SR 01h +3B data,ex: wrsr 000002h, set wren 1st)\n\r") ;
alec1 1:550759f64702 143 printf(" se address (4KB Sector Erase, ex: be 0x00 <- note: sets WEL)\n\r") ;
alec1 1:550759f64702 144 printf(" be address (64KB Block Erase, ex: be 0x00 <- note: sets WEL)\n\r") ;
alec1 1:550759f64702 145 printf(" 32Kbe address (32KB Block Erase, ex: 32kbe 0x00 <- note: sets WEL)\n\r") ;
alec1 1:550759f64702 146 printf(" ce (Chip Erase = C7h, ex: ce <- note: sets WEL)\n\r") ;
alec1 1:550759f64702 147 printf(" pp address (256B Page Program, ex: pp 0x00 <- note: sets WEL)\n\r") ;
alec1 1:550759f64702 148 printf(" read address (read 1 byte of data, ex: read 0x0000)\n\r") ;
alec1 1:550759f64702 149 printf(" rd1 startadr endadr (read range of data, ex: rd1 0x00 0x10)\n\r") ;
alec1 1:550759f64702 150 printf(" fread startadr endadr (read range of data, ex: sfdp 0x00 0x10)\n\r") ;
alec1 1:550759f64702 151 printf(" sfdp startadr endadr (read range of SFDP, ex: sfdp 0x00 0x10)\n\r") ;
alec1 1:550759f64702 152 printf("==================================================================================\n\r") ;
alec1 1:550759f64702 153 printf("\n\r") ;
alec1 1:550759f64702 154 }
alec1 0:b2771f496313 155
alec1 0:b2771f496313 156 int main() {
alec1 0:b2771f496313 157 char cmd[32] ;
alec1 0:b2771f496313 158 int i ;
alec1 0:b2771f496313 159 int numData = 256 ;
alec1 0:b2771f496313 160 unsigned long address = 0 ;
alec1 1:550759f64702 161 unsigned long rd_start_address = 0 ;
alec1 1:550759f64702 162 unsigned long rd_end_address = 0 ;
alec1 0:b2771f496313 163 unsigned char data[256] ;
alec1 0:b2771f496313 164
alec1 0:b2771f496313 165 extern serial_t stdio_uart ;
alec1 0:b2771f496313 166 serial_baud(&stdio_uart, 9600) ;
alec1 0:b2771f496313 167
alec1 0:b2771f496313 168 printf("\n\r") ;
alec1 0:b2771f496313 169 printf("\n\r") ;
alec1 0:b2771f496313 170 printf("\n\r") ;
alec1 0:b2771f496313 171 printf("\n\r") ;
alec1 1:550759f64702 172 printf("\n\r ####################################################\n\r") ;
alec1 1:550759f64702 173 printf(" # #\n\r") ;
alec1 1:550759f64702 174 printf(" # Macronix MX25Rxx35F Serial NOR Flash Testbench #\n\r") ;
alec1 1:550759f64702 175 printf(" # #\n\r") ;
alec1 1:550759f64702 176 printf(" ####################################################\n\r") ;
alec1 0:b2771f496313 177 printf("\n\r") ;
alec1 1:550759f64702 178 printf("\n\r") ;
alec1 1:550759f64702 179 commandMenu() ;
alec1 0:b2771f496313 180
alec1 0:b2771f496313 181 myled3 = 1;
alec1 0:b2771f496313 182 myled1 = 1;
alec1 0:b2771f496313 183 led_green = 0;
alec1 1:550759f64702 184 led_red = 1;
alec1 0:b2771f496313 185
alec1 0:b2771f496313 186 while(1){
alec1 1:550759f64702 187 printf("Enter command from list, or type menu.\n\r") ;
alec1 0:b2771f496313 188 printf("> ") ;
alec1 0:b2771f496313 189 scanf("%s", cmd) ;
alec1 1:550759f64702 190
alec1 1:550759f64702 191 if (strcmp(cmd, "read") == 0) { // Read Byte
alec1 0:b2771f496313 192 scanf("%X", &address) ;
alec1 0:b2771f496313 193 data[0] = spi_mem.read8(address) ;
alec1 0:b2771f496313 194 printf("%01X : 0x%02X\n\r", address, data[0]) ;
alec1 1:550759f64702 195
alec1 1:550759f64702 196 } else if (strcmp(cmd, "rd1") == 0) { // Read Range
alec1 1:550759f64702 197 scanf("%X", &rd_start_address) ;
alec1 1:550759f64702 198 scanf("%X", &rd_end_address) ;
alec1 1:550759f64702 199 rdRange(rd_start_address, rd_end_address) ;
alec1 0:b2771f496313 200
alec1 1:550759f64702 201 } else if (strcmp(cmd, "rdsr") == 0) { // Read Status Register
alec1 0:b2771f496313 202 data[0] = spi_mem.readStatus() ;
alec1 0:b2771f496313 203 printf(" status register = 0x%02X\n\r", data[0]) ;
alec1 0:b2771f496313 204 printf("RDSR = 05h done\n\r") ;
alec1 0:b2771f496313 205
alec1 0:b2771f496313 206 } else if (strcmp(cmd, "reset") == 0) { // ResetEnable + Software Reset
alec1 0:b2771f496313 207 spi_mem.resetEnable() ;
alec1 0:b2771f496313 208 spi_mem.reset() ;
alec1 0:b2771f496313 209 printf("Software ResestEnable 66h + Reset 99h completed\n\r") ;
alec1 0:b2771f496313 210
alec1 0:b2771f496313 211 } else if (strcmp(cmd, "rdcr") == 0) { // Read Configuration Register
alec1 0:b2771f496313 212 printf(" configuration register = 0x%04X\n\r", spi_mem.readConfig()) ;
alec1 0:b2771f496313 213 printf("RDCR = 15h done\n\r") ;
alec1 0:b2771f496313 214
alec1 0:b2771f496313 215 } else if (strcmp(cmd, "rdid") == 0) { // Read ID
alec1 0:b2771f496313 216 printf(" ID = 0x%06X\n\r", spi_mem.readID()) ;
alec1 0:b2771f496313 217 printf("RDID = 9Fh done\n\r") ;
alec1 0:b2771f496313 218
alec1 0:b2771f496313 219 } else if (strcmp(cmd, "wren") == 0) { // Write Enable
alec1 0:b2771f496313 220 spi_mem.writeEnable() ;
alec1 0:b2771f496313 221 printf(" WREN = 06h set\n\r") ;
alec1 0:b2771f496313 222
alec1 0:b2771f496313 223 } else if (strcmp(cmd, "wrdi") == 0) { // Write Disable
alec1 0:b2771f496313 224 spi_mem.writeDisable() ;
alec1 0:b2771f496313 225 printf(" done\n\r") ;
alec1 0:b2771f496313 226
alec1 1:550759f64702 227 } else if (strcmp(cmd, "enso") == 0) { // Enter Secure OTP Area
alec1 1:550759f64702 228 spi_mem.enterSecureOTP() ;
alec1 1:550759f64702 229 printf(" Entered Secure OTP Area\n\r") ;
alec1 1:550759f64702 230
alec1 1:550759f64702 231 } else if (strcmp(cmd, "exso") == 0) { // Exit Secure OTP Area
alec1 1:550759f64702 232 spi_mem.exitSecureOTP() ;
alec1 1:550759f64702 233 printf(" Entered Secure OTP Area\n\r") ;
alec1 1:550759f64702 234
alec1 0:b2771f496313 235 } else if (strcmp(cmd, "pp") == 0) { // Page Program
alec1 0:b2771f496313 236 scanf("%X", &address) ;
alec1 0:b2771f496313 237 printf("writing %d bytes to 0x%X\n\r",numData, address) ;
alec1 0:b2771f496313 238 spi_mem.writeEnable() ; // send WREN 1st
alec1 0:b2771f496313 239 for (i = 0 ; i < numData ; i++ ) {
alec1 0:b2771f496313 240 data[i] = i & 0xFF ;
alec1 0:b2771f496313 241 }
alec1 0:b2771f496313 242 spi_mem.programPage(address, data, numData) ;
alec1 0:b2771f496313 243 data[0] = 0 ;
alec1 0:b2771f496313 244 while((data[0] & 0x01) != 0x01 ) {
alec1 0:b2771f496313 245 printf(".") ;
alec1 0:b2771f496313 246 data[0] = spi_mem.readStatus() ;
alec1 0:b2771f496313 247 wait(0.01) ;
alec1 0:b2771f496313 248 }
alec1 0:b2771f496313 249 printf("\n\r") ;
alec1 0:b2771f496313 250 printf(" PP = 02h done\n\r") ;
alec1 0:b2771f496313 251
alec1 1:550759f64702 252 } else if (strcmp(cmd, "ce") == 0) { // Chip Erase
alec1 0:b2771f496313 253 spi_mem.writeEnable() ; // send WREN 1st
alec1 0:b2771f496313 254 spi_mem.chipErase() ;
alec1 0:b2771f496313 255 data[0] = 0x01 ; // poll if WIP bit SR<0>=1
alec1 0:b2771f496313 256 while((data[0] & 0x01) != 0 ) {
alec1 0:b2771f496313 257 printf("wait, chip erase in progress") ;
alec1 0:b2771f496313 258 data[0] = spi_mem.readStatus() ;
alec1 0:b2771f496313 259 printf(" --> status register = 0x%02X\n\r", data[0]) ;
alec1 0:b2771f496313 260 wait(5) ;
alec1 0:b2771f496313 261 } // end poll
alec1 0:b2771f496313 262 printf("CE = C7h done\n\r") ;
alec1 0:b2771f496313 263
alec1 1:550759f64702 264 } else if (strcmp(cmd, "se") == 0) { // Sector Erase
alec1 0:b2771f496313 265 scanf("%X", &address) ;
alec1 0:b2771f496313 266 printf("Eraseing address 0x%X\n\r", address) ;
alec1 0:b2771f496313 267 spi_mem.writeEnable() ; // send WREN 1st
alec1 0:b2771f496313 268 spi_mem.sectorErase(address) ;
alec1 0:b2771f496313 269 data[0] = 0x01 ; // poll if WIP bit SR<0>=1
alec1 0:b2771f496313 270 while((data[0] & 0x01) != 0 ) {
alec1 0:b2771f496313 271 printf(".") ;
alec1 0:b2771f496313 272 data[0] = spi_mem.readStatus() ;
alec1 0:b2771f496313 273 wait(0.1) ;
alec1 0:b2771f496313 274 } // end poll
alec1 0:b2771f496313 275 printf("SE = 20h done\n\r") ;
alec1 0:b2771f496313 276
alec1 0:b2771f496313 277 } else if (strcmp(cmd, "be") == 0) { // 64KB Block Erase
alec1 0:b2771f496313 278 scanf("%X", &address) ;
alec1 0:b2771f496313 279 printf("Eraseing address 0x%X\n\r", address) ;
alec1 0:b2771f496313 280 spi_mem.writeEnable() ; // send WREN 1st
alec1 0:b2771f496313 281 spi_mem.blockErase(address) ;
alec1 1:550759f64702 282 data[0] = 0x01 ; // poll if WIP bit SR<0>=1
alec1 0:b2771f496313 283 while((data[0] & 0x01) != 0 ) {
alec1 0:b2771f496313 284 printf(".") ;
alec1 0:b2771f496313 285 data[0] = spi_mem.readStatus() ;
alec1 0:b2771f496313 286 wait(0.1) ;
alec1 0:b2771f496313 287 } // end poll
alec1 0:b2771f496313 288 printf("BE = D8h done\n\r") ;
alec1 0:b2771f496313 289
alec1 1:550759f64702 290 } else if (strcmp(cmd, "32kbe") == 0) { // 32KB Block Erase
alec1 0:b2771f496313 291 scanf("%X", &address) ;
alec1 0:b2771f496313 292 printf("Eraseing address 0x%X\n\r", address) ;
alec1 0:b2771f496313 293 spi_mem.writeEnable() ; // send WREN 1st
alec1 0:b2771f496313 294 spi_mem.blockErase(address) ;
alec1 0:b2771f496313 295 data[0] = 0x01 ; // poll if WIP bit SR<0>=1
alec1 0:b2771f496313 296 while((data[0] & 0x01) != 0 ) {
alec1 0:b2771f496313 297 printf(".") ;
alec1 0:b2771f496313 298 data[0] = spi_mem.readStatus() ;
alec1 0:b2771f496313 299 wait(0.1) ;
alec1 0:b2771f496313 300 } // end poll
alec1 0:b2771f496313 301 printf("32KBE = 52h done\n\r") ;
alec1 1:550759f64702 302
alec1 1:550759f64702 303 } else if (strcmp(cmd, "wrsr") == 0) { // Write to Status and Configuration Reg 1 and 2
alec1 1:550759f64702 304 scanf("%X", &address) ;
alec1 1:550759f64702 305 spi_mem.writeStatusreg(address) ; // Write SR cmd 01h +SRdata 00h +CR1data 00h +CR2data 02h, (CR2<1> = 1 to Enter HP Mode)
alec1 1:550759f64702 306 wait(0.5) ;
alec1 1:550759f64702 307 printf(" You wrote 0x%X to Staus and Config Register 1 and 2 \n\r", address) ;
alec1 0:b2771f496313 308
alec1 0:b2771f496313 309 } else if (strcmp(cmd, "hp") == 0) { // Enter High Performance Mode
alec1 0:b2771f496313 310 spi_mem.writeEnable() ; // send WREN 1st
alec1 1:550759f64702 311 spi_mem.writeStatusreg(0x000002) ; // Write SR cmd 01h +SRdata 00h +CR1data 00h +CR2data 02h, (CR2<1> = 1 to Ernter HP Mode)
alec1 1:550759f64702 312 printf(" You are now in High Performance mode (Red LED on)\n\r") ;
alec1 1:550759f64702 313 led_red = 0;
alec1 1:550759f64702 314 led_green = 1;
alec1 0:b2771f496313 315
alec1 0:b2771f496313 316 } else if (strcmp(cmd, "lp") == 0) { // Enter Low Power Mode
alec1 0:b2771f496313 317 spi_mem.writeEnable() ; // send WREN 1st
alec1 1:550759f64702 318 spi_mem.writeStatusreg(0x000000) ; // Write SR cmd 01h +SRdata 00h +CR1data 00h +CR2data 00h, (CR2<1> = 0 to Ernter LP Mode)
alec1 1:550759f64702 319 printf(" You are now in Low Power mode (Green LED on)\n\r") ;
alec1 1:550759f64702 320 led_green = 0;
alec1 1:550759f64702 321 led_red = 1;
alec1 1:550759f64702 322
alec1 1:550759f64702 323 } else if (strcmp(cmd, "fread") == 0) { // Read SFDP Range
alec1 1:550759f64702 324 scanf("%X", &rd_start_address) ;
alec1 1:550759f64702 325 scanf("%X", &rd_end_address) ;
alec1 1:550759f64702 326 rdFREADRange(rd_start_address, rd_end_address) ;
alec1 1:550759f64702 327
alec1 1:550759f64702 328 } else if (strcmp(cmd, "sfdp") == 0) { // Read SFDP Range
alec1 1:550759f64702 329 scanf("%X", &rd_start_address) ;
alec1 1:550759f64702 330 scanf("%X", &rd_end_address) ;
alec1 1:550759f64702 331 rdSFDPRange(rd_start_address, rd_end_address) ;
alec1 1:550759f64702 332
alec1 0:b2771f496313 333 } else if (strcmp(cmd, "help") == 0) {
alec1 1:550759f64702 334 commandMenu() ;
alec1 1:550759f64702 335 } else if (strcmp(cmd, "menu") == 0) {
alec1 1:550759f64702 336 commandMenu() ;
alec1 0:b2771f496313 337 } else {
alec1 0:b2771f496313 338 printf("Command NOT Recognized [ %s ]\n\r", cmd) ;
alec1 1:550759f64702 339 commandMenu() ;
alec1 0:b2771f496313 340 }
alec1 0:b2771f496313 341 }
alec1 0:b2771f496313 342 }