/****f* simple.c/do_transfer
*
* SUMMARY
* This function is used as a task example
* It triggers a dma transfers.
*
* SYNOPSIS
* void do_transfer (uint val, uint none)
*
* INPUTS
* uint val: argument
* uint none: padding argument - task must have 2
*
* SOURCE
*/
void do_transfer (uint val, uint none)
{
if (val == 3)
{
spin1_dma_transfer(DMA_WRITE, sysram_buffer, dtcm_buffer, DMA_WRITE,
BUFFER_SIZE*sizeof(uint));
}
else
{
if (val == 5)
{
spin1_dma_transfer(DMA_WRITE, sdram_buffer, dtcm_buffer, DMA_WRITE,
BUFFER_SIZE*sizeof(uint));
}
}
}
// Reads whole input vector from SDRAM
static inline void read_whole_vector()
{
// Schedule reading in the whole input vector from SDRAM
value_t *sdram_input_vector = ensemble.parameters.sdram_input_vector;
spin1_dma_transfer(
READ_WHOLE_VECTOR, // Tag
sdram_input_vector, // SDRAM address
ensemble.input, // DTCM address
DMA_READ, // Direction
sizeof(value_t) * ensemble.parameters.n_dims
);
}
// Writes the accumulated local section of the standard filter's output to SDRAM
static inline void write_filtered_vector()
{
// Compute the size of the transfer
uint size = sizeof(value_t) * ensemble.parameters.input_subspace.n_dims;
spin1_dma_transfer(
WRITE_FILTERED_VECTOR,
sdram_input_vector_local, // Section of the SDRAM vector we manage
ensemble.input_local, // Section of the DTCM vector we're updating
DMA_WRITE,
size
);
}
// Reads whole input vector from SDRAM
static inline void read_whole_learned_vector(uint32_t signal)
{
// Cache index
dma_learnt_vector = signal;
spin1_dma_transfer(
READ_WHOLE_LEARNED_VECTOR, // Tag
sdram_learnt_input_vector[signal], // SDRAM address
ensemble.learnt_input[signal], // DTCM address
DMA_READ, // Direction
sizeof(value_t) * ensemble.parameters.n_dims
);
}
// Writes the local section of the specified learnt input filter's output to SDRAM
static inline void write_filtered_learnt_vector(uint32_t signal)
{
// Cache index
dma_learnt_vector = signal;
// Compute the size of the transfer
uint size = sizeof(value_t) * ensemble.parameters.input_subspace.n_dims;
spin1_dma_transfer(
WRITE_FILTERED_LEARNT_VECTOR,
sdram_learnt_input_vector_local[signal], // Section of the SDRAM vector we manage
ensemble.learnt_input_local[signal], // Section of the DTCM vector we're updating
DMA_WRITE,
size
);
}
