diff options
| author | hathach <[email protected]> | 2026-04-26 10:14:31 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2026-04-26 10:14:31 +0700 |
| commit | 5ba472d5c9777e83523d7db718743e3cd5c8761a (patch) | |
| tree | 21024eddf067bd615b14dea1fa26b25d3201eb5a /examples/device/cdc_msc_throughput/src | |
| parent | ef2f24cddbce107c80f43e1e8f8a3cd1bf763d84 (diff) | |
shrink cdc_msc_throughput MSC buffer for FS targets
CFG_TUD_MSC_EP_BUFSIZE: 4096 → (HS ? 4096 : 1024). Keep the big buffer for
HS where it actually amortises CBW overhead at iperf-class throughput; FS
peaks around ~830 kBps so 1 KB is plenty and the example now fits on
small-RAM MCUs (lpc11/13, samd11, kinetis_kl, stm32f0/l0, stm32f1, etc.).
Also dedupe CDC_TX_BUFSIZE = CDC_RX_BUFSIZE.
Drops the previously-needed skip.txt — verified builds locally on
lpcxpresso1347, cynthion_d11, lpcxpresso11u37/u68, stm32f072disco/eval,
frdm_kl25z, stm32l052dap52.
Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>
Diffstat (limited to 'examples/device/cdc_msc_throughput/src')
| -rw-r--r-- | examples/device/cdc_msc_throughput/src/tusb_config.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/examples/device/cdc_msc_throughput/src/tusb_config.h b/examples/device/cdc_msc_throughput/src/tusb_config.h index 0a0d6dca9..6c8655719 100644 --- a/examples/device/cdc_msc_throughput/src/tusb_config.h +++ b/examples/device/cdc_msc_throughput/src/tusb_config.h @@ -85,7 +85,7 @@ extern "C" { // Large MSC bulk buffer: host transfers big CBW payloads (e.g. dd bs=1M does 64KiB // chunks). A 4K per-bulk-IO buffer lets the class driver amortise the per-CBW // overhead across many USB packets, approximating the maximum USB bulk throughput. -#define CFG_TUD_MSC_EP_BUFSIZE 4096 +#define CFG_TUD_MSC_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 4096 : 1024) // #define CFG_TUD_CDC_TX_PERSISTENT 1 @@ -94,7 +94,7 @@ extern "C" { #define CFG_TUD_CDC_TX_EPSIZE CFG_TUD_CDC_RX_EPSIZE #define CFG_TUD_CDC_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 2*512 : 2*64) -#define CFG_TUD_CDC_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 2*512 : 2*64) +#define CFG_TUD_CDC_TX_BUFSIZE CFG_TUD_CDC_RX_BUFSIZE #ifdef __cplusplus } |