void spi_free(spi_t *obj) {
// Reset SPI and disable clock
if (obj->spi == SPI_1) {
__SPI1_FORCE_RESET();
__SPI1_RELEASE_RESET();
__SPI1_CLK_DISABLE();
}
if (obj->spi == SPI_2) {
__SPI2_FORCE_RESET();
__SPI2_RELEASE_RESET();
__SPI2_CLK_DISABLE();
}
if (obj->spi == SPI_3) {
__SPI3_FORCE_RESET();
__SPI3_RELEASE_RESET();
__SPI3_CLK_DISABLE();
}
// Configure GPIOs
pin_function(obj->pin_miso, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
pin_function(obj->pin_mosi, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
pin_function(obj->pin_sclk, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
pin_function(obj->pin_ssel, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
}
void spi_free(spi_t *obj)
{
// Reset SPI and disable clock
switch(obj->spi.module) {
case 0:
__SPI1_FORCE_RESET();
__SPI1_RELEASE_RESET();
__SPI1_CLK_DISABLE();
break;
case 1:
__SPI2_FORCE_RESET();
__SPI2_RELEASE_RESET();
__SPI2_CLK_DISABLE();
break;
case 2:
__SPI3_FORCE_RESET();
__SPI3_RELEASE_RESET();
__SPI3_CLK_DISABLE();
break;
#if MODULES_SIZE_SPI > 3
case 3:
__SPI4_FORCE_RESET();
__SPI4_RELEASE_RESET();
__SPI4_CLK_DISABLE();
break;
#endif
#if MODULES_SIZE_SPI > 4
case 4:
__SPI5_FORCE_RESET();
__SPI5_RELEASE_RESET();
__SPI5_CLK_DISABLE();
break;
#endif
#if MODULES_SIZE_SPI > 5
case 5:
__SPI6_FORCE_RESET();
__SPI6_RELEASE_RESET();
__SPI6_CLK_DISABLE();
break;
#endif
default:
break;
}
// Configure GPIOs
pin_function(obj->spi.pin_miso, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
pin_function(obj->spi.pin_mosi, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
pin_function(obj->spi.pin_sclk, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
DEBUG_PRINTF("SPI%u: Free\n", obj->spi.module+1);
}
void processCommand(){
uint32_t lengthTxData = 0;
uint32_t addr = 0;
uint32_t i;
uint32_t temp;
//At minimun resent length of trame and command name (minimun header)
//Data_buffer_Transmit[0] = 0; //Low byte of length set in sendAndWaitIfNotReadyAndValidCommand before send
//Data_buffer_Transmit[1] = 0; // High byte of length set in sendAndWaitIfNotReadyAndValidCommand before send
Data_buffer_Transmit[2] = rx_raw_Frame[2]; //at minimum, answer is Low byte of command
Data_buffer_Transmit[3] = rx_raw_Frame[3]; //at minimum, answer is Hight byte of command
switch (lowHighByteToInt(rx_raw_Frame[2],rx_raw_Frame[3]) ){
case FPGA_COMMAND :
receiveRawDataFromFPGABySPI[2] = LOBYTE(FPGA_DATA);
receiveRawDataFromFPGABySPI[3] = HIBYTE(FPGA_DATA);
HAL_SPI_Receive_DMA(&hspi1, *(&receiveRawDataFromFPGABySPI) + 4, 8186 ); //Offset + 4 lenght & command type
lengthTxData = lowHighByteToInt(rx_raw_Frame[0],rx_raw_Frame[1]); //resend same length to receive the answer of SPI COMMAND
//Cs low to start spi
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_9,0);
HAL_SPI_Transmit_DMA(&hspi3,*(&rx_raw_Frame)+4, lengthTxData-4);
break;
case LOOPBACK :
//Copy frame in tx buffer to send the same thing just a loopback for testing purpose
memcpy (Data_buffer_Transmit,rx_raw_Frame,rx_raw_FrameLen);
mustValidCommandAfterSend = 1;
sendUSB(Data_buffer_Transmit,rx_raw_FrameLen);
//endProcessCommandAllowReceiveAgain();
//sendAndWaitIfNotReady(rx_raw_FrameLen);
break;
case LED1 :
Data_buffer_Transmit[4] = rx_raw_Frame[4]; //resend value of led
lengthTxData = 4+1; //increment length because send a value of led
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_9,rx_raw_Frame[4] & 1 ); //Change value of led
//sendAndWaitIfNotReadyAndValidCommand(lengthTxData);
//If you don't want answer just
endProcessCommandAllowReceiveAgain();
break;
case LED2 :
Data_buffer_Transmit[4] = rx_raw_Frame[4] ; //resend value of led
lengthTxData = 4 + 1; //increment length because send a value of led
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_10,rx_raw_Frame[4] & 1 );//Change value of led
//sendAndWaitIfNotReadyAndValidCommand(lengthTxData);
//If you don't want answer just
endProcessCommandAllowReceiveAgain();
break;
case START_FPGA :
HAL_SPI_DeInit(&hspi2);
//Nce FPGA enable
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,0);
//short pulse nconfig on release reconfigure fpga
//HAL_GPIO_WritePin(GPIOC,GPIO_PIN_0,0);
Delay(1000);
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_0,1);
Delay(5000);
//Restart SPI1 to receive data from FPGA
__SPI1_RELEASE_RESET();
MX_SPI1_Init();
endProcessCommandAllowReceiveAgain();
break;
case STOP_FPGA :
//Stop SPI1 ( receive data from FPGA)
//To avoid some problem, when reset fpga (upload) 100ns pulse generate fake edge and shift (1bit) the reveived data
__SPI1_FORCE_RESET();
//HAL_SPI_MspDeInit(&hspi1);
//Nce FPGA disable
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,1);
//nconfig on release reconfigure fpga
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_0,0);
Delay(5000); //wait to be sure that the fpga was stopped
MX_SPI2_Init();
sFLASH_READID(); //Must read ID to wake up the memory
Delay(5000);
//HAL_SPI_MspInit(&hspi1);
endProcessCommandAllowReceiveAgain();
break;
case ERASE_FIRMWARE :
Data_buffer_Transmit[4] = 1;
lengthTxData = 4 + 1; //increment length because send a value (1=ok)
//sFLASH_ERASE_BULK(); //slow replaced by just erasing 2 sectors
sFLASH_ERASE();
mustValidCommandAfterSend = 1;
sendUSB(Data_buffer_Transmit,lengthTxData);
break;
case READ_PAGE_FIRMWARE :
if (rx_raw_Frame[6] <= 31) {//Just check number of page if not less than 31 do nothing
lengthTxData = (uint32_t)rx_raw_Frame[6] * 256;
Data_buffer_Transmit[4] = rx_raw_Frame[4]; //low byte Number of the first page
Data_buffer_Transmit[5] = rx_raw_Frame[5]; //high byte Number of the first page
Data_buffer_Transmit[6] = rx_raw_Frame[6]; //Nb of page
addr=lowHighByteToInt(rx_raw_Frame[4],rx_raw_Frame[5])*256;
sFLASH_Read(*(&Data_buffer_Transmit)+7,addr,lengthTxData);
mustValidCommandAfterSend = 1;
sendUSB(Data_buffer_Transmit,lengthTxData+7);
}else{
Data_buffer_Transmit[2] = LOBYTE(COMMAND_NOT_FOUND);
Data_buffer_Transmit[3] = HIBYTE(COMMAND_NOT_FOUND);
mustValidCommandAfterSend = 1;
sendUSB(Data_buffer_Transmit,4);
}
break;
case WRITE_PAGE_FIRMWARE :
//Data_buffer_Transmit[4] = rx_raw_Frame[4]; //low byte Number of the first page
//Data_buffer_Transmit[5] = rx_raw_Frame[5]; //high byte Number of the first page
//Data_buffer_Transmit[6] = rx_raw_Frame[6]; //Nb of page (31 max)
addr=lowHighByteToInt(rx_raw_Frame[4],rx_raw_Frame[5])*256;
for (int i=0;i< rx_raw_Frame[6];i++){
sFLASH_WritePage(*(&rx_raw_Frame)+7+i*256,addr+i*256,256);
}
endProcessCommandAllowReceiveAgain();
break;
case GET_VERSION_NUMBER :
lengthTxData = 18;
memcpy(&Data_buffer_Transmit[4],&versionNumber,lengthTxData);
mustValidCommandAfterSend = 1;
sendUSB(Data_buffer_Transmit,lengthTxData+4);
break;
default:
//mustValidCommandAfterSend = 1;
//sendAndWaitIfNotReady(lengthTxData);
//If you don't want answer just
endProcessCommandAllowReceiveAgain();
}
}