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USB: reduce buffer size to save RAM

This commit is contained in:
King Kévin 2018-03-23 14:24:34 +01:00
parent 25b0466aee
commit 1065a37cdb
1 changed files with 1 additions and 1 deletions
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2
lib/usb_cdcacm.c
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@ -47,7 +47,7 @@ static volatile bool usb_tx_ongoing = false; /**< if USB transmission is already
static volatile bool first_connection = false; /**< used to detect when the first connection occurred */
/* output ring buffer, index, and available memory */
static uint8_t tx_buffer[512] = {0}; /**< ring buffer for data to transmit */
static uint8_t tx_buffer[256] = {0}; /**< ring buffer for data to transmit */
static volatile uint16_t tx_i = 0; /**< current position if transmitted data */
static volatile uint16_t tx_used = 0; /**< how much data needs to be transmitted */
static volatile bool tx_lock = false; /**< if the transmit buffer is currently being written */