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| author | michael-west <michael.west@ettus.com> | 2017-01-19 14:49:02 -0800 |
|---|---|---|
| committer | michael-west <michael.west@ettus.com> | 2017-12-20 15:32:32 -0800 |
| commit | d95613152da3e7c7f41c71acca65101ed0896893 (patch) | |
| tree | 69ab0b378dd790283e274600fe276c6d3905422a | |
| parent | 49790677648cd7a5b002437637c2e6c85f277862 (diff) | |
| download | uhd-d95613152da3e7c7f41c71acca65101ed0896893.tar.gz uhd-d95613152da3e7c7f41c71acca65101ed0896893.tar.bz2 uhd-d95613152da3e7c7f41c71acca65101ed0896893.zip | |
B200: FX3 performance optimizations based on Cypress AN86947
| -rw-r--r-- | firmware/fx3/b200/b200_main.c | 10 | ||||
| -rw-r--r-- | firmware/fx3/b200/b200_main.h | 2 |
2 files changed, 6 insertions, 6 deletions
diff --git a/firmware/fx3/b200/b200_main.c b/firmware/fx3/b200/b200_main.c index e552d3177..e5c55d6a7 100644 --- a/firmware/fx3/b200/b200_main.c +++ b/firmware/fx3/b200/b200_main.c @@ -228,7 +228,7 @@ typedef struct Config { int enable_as_superspeed; // 1 int pport_drive_strength; // CY_U3P_DS_THREE_QUARTER_STRENGTH int dma_buffer_size; // [USB3] (max) - int dma_buffer_count; // [USB3] 1 + int dma_buffer_count; // [USB3] 2 int manual_dma; // 0 int sb_baud_div; // 434*2 } CONFIG, *PCONFIG; @@ -244,8 +244,8 @@ static CONFIG g_config = { 0, // disable_usb2 1, // enable_as_superspeed CY_U3P_DS_THREE_QUARTER_STRENGTH, // pport_drive_strength - 64512, // dma_buffer_size 2**16-1, then aligned to next page boundary - 1, // dma_buffer_count + 16*1024, // dma_buffer_size - optimized value from Cypress AN86947 + 2, // dma_buffer_count - optimized value from Cypress AN86947 0, // manual_dma 434*2 // sb_baud_div }; @@ -1175,7 +1175,7 @@ void b200_fw_start(void) { data_buffer_size_from_host = data_buffer_size; g_vendor_req_buff_size = USB3_VREQ_BUF_SIZE; // Max 512 - num_packets_per_burst = USB3_PACKETS_PER_BURST*1+4*0; // 16 + num_packets_per_burst = USB3_PACKETS_PER_BURST; // 8 break; case CY_U3P_NOT_CONNECTED: @@ -1529,7 +1529,7 @@ void event_usb_callback (CyU3PUsbEventType_t event_type, uint16_t event_data) { * of this function is to register that the event happened at all, so that the * application thread knows it can proceed. * - * This function is also responsible for receiving vendor requests, and trigging + * This function is also responsible for receiving vendor requests, and triggering * the appropriate RTOS event to wake up the vendor request handler thread. */ CyBool_t usb_setup_callback(uint32_t data0, uint32_t data1) { diff --git a/firmware/fx3/b200/b200_main.h b/firmware/fx3/b200/b200_main.h index 9fe8b9511..453e7034a 100644 --- a/firmware/fx3/b200/b200_main.h +++ b/firmware/fx3/b200/b200_main.h @@ -41,7 +41,7 @@ #define MASK_GPIO_FPGA_SB_SCL (uint32_t)(1 << (GPIO_FPGA_SB_SCL - 0)) #define MASK_GPIO_FPGA_SB_SDA (uint32_t)(1 << (GPIO_FPGA_SB_SDA - 0)) -#define USB3_PACKETS_PER_BURST (16) +#define USB3_PACKETS_PER_BURST (8) // Optimized value from Cypress AN86947 #define USB2_PACKETS_PER_BURST (1) #define DMA_SIZE_INFINITE (0) |