Ammar May
/
EEPROM_24C
eeprom
Diff: main.cpp
- Revision:
- 1:5b28969c451b
- Parent:
- 0:770fea48cb00
--- a/main.cpp Fri Mar 03 11:36:09 2017 +0000 +++ b/main.cpp Thu Dec 26 08:36:27 2019 +0000 @@ -7,315 +7,58 @@ #define EEPROM_ADDR 0x0 // I2c EEPROM address is 0x00 -#define SDA p9 // I2C SDA pin -#define SCL p10 // I2C SCL pin +#define SDA I2C_SDA // I2C SDA pin +#define SCL I2C_SCL // I2C SCL pin #define MIN(X,Y) ((X) < (Y) ? (X) : (Y)) #define MAX(X,Y) ((X) > (Y) ? (X) : (Y)) -DigitalOut led2(LED2); + -typedef struct _MyData { - int16_t sdata; - int32_t idata; - float fdata; - } MyData; -static void myerror(std::string msg) -{ - printf("Error %s\n",msg.c_str()); - exit(1); -} -void eeprom_test(void) -{ - EEPROM ep(SDA,SCL,EEPROM_ADDR,EEPROM::T24C64); // 24C64 eeprom with sda = p9 and scl = p10 - uint8_t data[256],data_r[256]; - int8_t ival; - uint16_t s; - int16_t sdata,sdata_r; - int32_t ldata[1024]; - int32_t eeprom_size,max_size; - uint32_t addr; - int32_t idata,idata_r; - uint32_t i,j,k,l,t,id; - float fdata,fdata_r; - MyData md,md_r; - - eeprom_size = ep.getSize(); - max_size = MIN(eeprom_size,256); - - printf("Test EEPROM I2C model %s of %d bytes\n\n",ep.getName(),eeprom_size); - - // Test sequential read byte (max_size first bytes) - for(i = 0;i < max_size;i++) { - ep.read(i,ival); - data_r[i] = ival; - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - } - - printf("Test sequential read %d first bytes :\n",max_size); - for(i = 0;i < max_size/16;i++) { - for(j = 0;j < 16;j++) { - addr = i * 16 + j; - printf("%3d ",(uint8_t)data_r[addr]); - } - printf("\n"); - } - - // Test sequential read byte (max_size last bytes) - for(i = 0;i < max_size;i++) { - addr = eeprom_size - max_size + i; - ep.read(addr,ival); - data_r[i] = ival; - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - } - - printf("\nTest sequential read %d last bytes :\n",max_size); - for(i = 0;i < max_size/16;i++) { - for(j = 0;j < 16;j++) { - addr = i * 16 + j; - printf("%3d ",(uint8_t)data_r[addr]); - } - printf("\n"); - } - - // Test write byte (max_size first bytes) - for(i = 0;i < max_size;i++) - data[i] = i; - - for(i = 0;i < max_size;i++) { - ep.write(i,(int8_t)data[i]); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - } - - // Test read byte (max_size first bytes) - for(i = 0;i < max_size;i++) { - ep.read(i,(int8_t&)ival); - data_r[i] = (uint8_t)ival; - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - } - - printf("\nTest write and read %d first bytes :\n",max_size); - for(i = 0;i < max_size/16;i++) { - for(j = 0;j < 16;j++) { - addr = i * 16 + j; - printf("%3d ",(uint8_t)data_r[addr]); - } - printf("\n"); - } - - // Test current address read byte (max_size first bytes) - ep.read((uint32_t)0,(int8_t&)ival); // current address is 0 - data_r[0] = (uint8_t)ival; - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - for(i = 1;i < max_size;i++) { - ep.read((int8_t&)ival); - data_r[i] = (uint8_t)ival; - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - } - - printf("\nTest current address read %d first bytes :\n",max_size); - for(i = 0;i < max_size/16;i++) { - for(j = 0;j < 16;j++) { - addr = i * 16 + j; - printf("%3d ",(uint8_t)data_r[addr]); - } - printf("\n"); - } - - // Test sequential read byte (first max_size bytes) - ep.read((uint32_t)0,(int8_t *)data_r,(uint32_t) max_size); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - printf("\nTest sequential read %d first bytes :\n",max_size); - for(i = 0;i < max_size/16;i++) { - for(j = 0;j < 16;j++) { - addr = i * 16 + j; - printf("%3d ",(uint8_t)data_r[addr]); - } - printf("\n"); - } - - // Test write short, long, float - sdata = -15202; - addr = eeprom_size - 16; - ep.write(addr,(int16_t)sdata); // short write at address eeprom_size - 16 - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - idata = 45123; - addr = eeprom_size - 12; - ep.write(addr,(int32_t)idata); // long write at address eeprom_size - 12 - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - fdata = -12.26; - addr = eeprom_size - 8; - ep.write(addr,(float)fdata); // float write at address eeprom_size - 8 - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - // Test read short, long, float - printf("\nTest write and read short (%d), long (%d), float (%f) :\n", - sdata,idata,fdata); - - ep.read((uint32_t)(eeprom_size - 16),(int16_t&)sdata_r); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - printf("sdata %d\n",sdata_r); - - ep.read((uint32_t)(eeprom_size - 12),(int32_t&)idata_r); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - printf("idata %d\n",idata_r); - - ep.read((uint32_t)(eeprom_size - 8),fdata_r); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - printf("fdata %f\n",fdata_r); - - // Test read and write a structure - md.sdata = -15203; - md.idata = 45124; - md.fdata = -12.27; - - ep.write((uint32_t)(eeprom_size - 32),(void *)&md,sizeof(md)); // write a structure eeprom_size - 32 - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - printf("\nTest write and read a structure (%d %d %f) :\n",md.sdata,md.idata,md.fdata); - - ep.read((uint32_t)(eeprom_size - 32),(void *)&md_r,sizeof(md_r)); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - printf("md.sdata %d\n",md_r.sdata); - printf("md.idata %d\n",md_r.idata); - printf("md.fdata %f\n",md_r.fdata); - - // Test read and write of an array of the first max_size bytes - for(i = 0;i < max_size;i++) - data[i] = max_size - i - 1; - - ep.write((uint32_t)(0),data,(uint32_t)max_size); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - ep.read((uint32_t)(0),data_r,(uint32_t)max_size); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - printf("\nTest write and read an array of the first %d bytes :\n",max_size); - for(i = 0;i < max_size/16;i++) { - for(j = 0;j < 16;j++) { - addr = i * 16 + j; - printf("%3d ",(uint8_t)data_r[addr]); - } - printf("\n"); - } - printf("\n"); - - // Test write and read an array of int32 - s = eeprom_size / 4; // size of eeprom in int32 - int ldata_size = sizeof(ldata) / 4; // size of data array in int32 - l = s / ldata_size; // loop index - - // size of read / write in bytes - t = eeprom_size; - if(t > ldata_size * 4) - t = ldata_size * 4; - - printf("Test write and read an array of %d int32 (write entire memory) :\n",t/4); + - // Write entire eeprom - if(l) { - for(k = 0;k < l;k++) { - for(i = 0;i < ldata_size;i++) - ldata[i] = ldata_size * k + i; - - addr = k * ldata_size * 4; - ep.write(addr,(void *)ldata,t); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - } - - printf("Write OK\n"); - - // Read entire eeprom - id = 0; - for(k = 0;k < l;k++) { - addr = k * ldata_size * 4; - ep.read(addr,(void *)ldata,t); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - // format outputs with 8 words rows - for(i = 0;i < ldata_size / 8;i++) { - id++; - printf("%4d ",id); - for(j = 0;j < 8;j++) { - addr = i * 8 + j; - printf("%5d ",ldata[addr]); - } - printf("\n"); - } - } - } - else { - for(i = 0;i < s;i++) - ldata[i] = i; - - addr = 0; - ep.write(addr,(void *)ldata,t); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - printf("Write OK\n"); - - // Read entire eeprom - id = 0; - - addr = 0; - ep.read(addr,(void *)ldata,t); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - // format outputs with 8 words rows - for(i = 0;i < s / 8;i++) { - id++; - printf("%4d ",id); - for(j = 0;j < 8;j++) { - addr = i * 8 + j; - printf("%5d ",ldata[addr]); - } - printf("\n"); - } - } - - // clear eeprom - printf("\nClear eeprom\n"); - ep.clear(); - if(ep.getError() != 0) - myerror(ep.getErrorMessage()); - - printf("End\n"); - -} int main() { - - eeprom_test(); + printf("%dHz\r\n" ,SystemCoreClock); + + uint8_t data[12] = {'A','m','m','a','r',' ','M','a','y','0','0','0'}; + uint8_t data_read[2048]; + int8_t r; + + EEPROM ep(SDA, SCL, EEPROM_ADDR,EEPROM::T24C16); + + //ep.clear(); + + ep.write(0, data, 12); + //ep.write(3, 7); + + + + ep.read(0, data_read, 2048); - return(0); + for (int i=0; i<2048; i++) + { + printf("EEPROM READ %X \r\n", data_read[i]); + printf("\r\n"); + } + + ep.read(3, r); + + printf("EEPROM READ r %X \r\n", r); + + while(1) { + + + wait(4); + + printf("------------------------------------ \r\n"); + printf("hello world \r\n"); + } + + + }