/* offset deve essere allineato a 16 bit (BIT0 non significativo) */
int bpi_flash_read(int32_t dev, uint32_t offset, uint32_t* bpi_data) {
uint32_t app_data;
//Imposto indirizzo
app_data = offset << 1;
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_AD | 0x1000, app_data);
//Abbasso il CE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x6);
//Abbasso OE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x2);
//Rialzo OE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x6);
//Alzo CE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x7);
//Sono significativi, per la lettura, solo i 16 bit bassi
CAENVME_ReadRegister(dev, A3818_BPI_FLASH_DT | 0x1000, &app_data);
*bpi_data = app_data & 0x0000FFFF;
return 0;
}
/*-------------------------------------------------------------*/
int bpi_flash_write(int32_t dev, uint32_t offset, uint32_t bpi_data) {
uint32_t data;
//Imposto indirizzo
data = offset << 1;
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_AD | 0x1000, data);
//Imposto il dato
//Per la scrittura i 16 bit da scrivere vanno messi nella parte alta del registro.
data = bpi_data << 16;
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_DT | 0x1000, data);
//Abbasso il CE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x6);
//Abbasso WE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x4);
//Rialzo WE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x6);
//Alzo CE
CAENVME_WriteRegister(dev, A3818_BPI_FLASH_CMD | 0x1000, 0x7);
return 0;
}
CAENVME_API parse_and_call_CAENVME_WriteRegister( char* arguments ){
// parse string, call CAENVMElib function
CAENVME_API caen_api_return_value;
uint32_t address; // TODO CVRegisters !
unsigned short value;// uint16_t value; // TODO unsigned short
CVRegisters reg_address;
// parse register address and input value
char * pch;
pch = strtok(arguments, " "); // blank space is the only delimeter in out case
sscanf (pch, "%x", &address);
reg_address = static_cast<CVRegisters>( address ); // uint32_t to enum
sscanf (strtok(NULL, " "), "%x", &value);
printf("Writing %x to register @ %x of the bridge device, handle ID = %d\n", value, address, bridge_handler);
caen_api_return_value = CAENVME_WriteRegister(bridge_handler, reg_address, value);
printf("Done\n");
return caen_api_return_value;
}
// Disabilita l'accesso alla BPI flash.
// L'a3818 può accedere alla sola flash SPI.
void A3818_EnableSPIAccess(int32_t handle) {
uint32_t data;
CAENVME_ReadRegister(handle, A3818_DMISCCS | 0x1000, &data);
data = data & (~A3818_DMISCCS_SPI_BPI_FLASH_SEL);
CAENVME_WriteRegister(handle, A3818_DMISCCS | 0x1000, data);
}
