The below code include downloading GV7704 firmware & configuring the loop output.
The enclosed is the version 3.1.0.20 firmware code of gv7704.
Download step code:
uint8_t semGv_CodeGV7704(uint8_t vpCs)
{
uint8_t rc=0;
uint32_t vRegValue;
#ifdef DEF_SEM_DEBUG_SPICS
semGv_SpiCsNew(vpCs,ENUM_GV77XX_SPI_CS_ENABLE);
#endif
/*get chip rev & software rev*/
rc=semGv_GetBitsOfReg(vpCs,ENUM_BASE_ADDR_REG_MAIN,0x00,0,8,&vRegValue);
if(rc!=DEF_SEM_TRUE)
{
return DEF_SEM_FALSE;
}
//return 0;
//rc=semGv_GetFwVersionFromGV7700(vpCs);
//semGv_P2_5LED(DEF_SEM_LED_OFF);
#if 0
/*1-2-0Start the GV7704 chip:LOCAL_HOST_RESET=0x30*/
rc=semGv_SetBitsOfReg(vpCs,ENUM_BASE_ADDR_REG_MAIN,0x30,1,1,0x1);
if(rc!=DEF_SEM_TRUE)
{
return DEF_SEM_FALSE;
}
#endif
/*1-2-0Start the GV7704 chip:RESET_8051=0x26*/
rc=semGv_SetBitsOfReg(vpCs,ENUM_BASE_ADDR_REG_MAIN,0x26,0,1,0x1);
if(rc!=DEF_SEM_TRUE)
{
return DEF_SEM_FALSE;
}
/*1-1-enable Or disable the decryption engine:DECRYPTION_ENABLE=0x26*/
//0x004027
#ifdef DEF_GV7704_ENABLE_DECRYPTION
rc=semGv_SetBitsOfReg(vpCs,ENUM_BASE_ADDR_REG_MAIN,0x26,1,1,0x1);
if(rc!=DEF_SEM_TRUE)
{
return DEF_SEM_FALSE;
}
#else
rc=semGv_SetBitsOfReg(vpCs,ENUM_BASE_ADDR_REG_MAIN,0x26,1,1,0x0);
if(rc!=DEF_SEM_TRUE)
{
return DEF_SEM_FALSE;
}
#endif
/*1-2-1enable the DMA:START_DMA=0x30*/
rc=semGv_SetBitsOfReg(vpCs,ENUM_BASE_ADDR_REG_MAIN,0x2f,0,1,0x1);
if(rc!=DEF_SEM_TRUE)
