diff --git a/configs/README.txt b/configs/README.txt index 2dba9d0f52..36c422f466 100644 --- a/configs/README.txt +++ b/configs/README.txt @@ -139,7 +139,6 @@ defconfig -- This is a configuration file similar to the Linux CONFIG_DRAM_START - The start address of DRAM (physical) CONFIG_DRAM_VSTART - The start address of DRAM (virtual) - General build options CONFIG_RRLOAD_BINARY - make the rrload binary format used with diff --git a/configs/eagle100/README.txt b/configs/eagle100/README.txt index cc6cf39444..4182582bd2 100644 --- a/configs/eagle100/README.txt +++ b/configs/eagle100/README.txt @@ -205,6 +205,10 @@ Eagle100-specific Configuration Options CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support. Poll-waiting is recommended if the interrupt rate would be to high in the interrupt driven case. + CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before + emptying the Rx FIFO. If the SPI frequency is high and this + value is large, then larger values of this setting may cause + Rx FIFO overrun errors. Default: half of the Tx FIFO size (4). CONFIG_LM3S_ETHERNET - This must be set (along with CONFIG_NET) to build the LM3S Ethernet driver diff --git a/configs/eagle100/httpd/defconfig b/configs/eagle100/httpd/defconfig index d6aa384a5e..8f410917db 100644 --- a/configs/eagle100/httpd/defconfig +++ b/configs/eagle100/httpd/defconfig @@ -126,10 +126,17 @@ CONFIG_UART1_2STOP=0 # CONFIG_SSIn_DISABLE - select to disable all support for # the SSI # CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support +# Poll-waiting is recommended if the interrupt rate would be to +# high in the interrupt driven case. +# CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before +# emptying the Rx FIFO. If the SPI frequency is high and this +# value is large, then larger values of this setting may cause +# Rx FIFO overrun errors. Default: half of the Tx FIFO size (4). # CONFIG_SSI0_DISABLE=n CONFIG_SSI1_DISABLE=y CONFIG_SSI_POLLWAIT=y +#CONFIG_SSI_TXLIMIT=4 # # LM3S6918 specific serial device driver settings diff --git a/configs/eagle100/nettest/defconfig b/configs/eagle100/nettest/defconfig index 1bd4c2320a..96d82f693d 100644 --- a/configs/eagle100/nettest/defconfig +++ b/configs/eagle100/nettest/defconfig @@ -126,10 +126,17 @@ CONFIG_UART1_2STOP=0 # CONFIG_SSIn_DISABLE - select to disable all support for # the SSI # CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support +# Poll-waiting is recommended if the interrupt rate would be to +# high in the interrupt driven case. +# CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before +# emptying the Rx FIFO. If the SPI frequency is high and this +# value is large, then larger values of this setting may cause +# Rx FIFO overrun errors. Default: half of the Tx FIFO size (4). # CONFIG_SSI0_DISABLE=n CONFIG_SSI1_DISABLE=y CONFIG_SSI_POLLWAIT=y +#CONFIG_SSI_TXLIMIT=4 # # LM3S6918 specific serial device driver settings diff --git a/configs/eagle100/nsh/defconfig b/configs/eagle100/nsh/defconfig index 1fab6e4a24..cbd62632f1 100644 --- a/configs/eagle100/nsh/defconfig +++ b/configs/eagle100/nsh/defconfig @@ -126,10 +126,17 @@ CONFIG_UART1_2STOP=0 # CONFIG_SSIn_DISABLE - select to disable all support for # the SSI # CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support +# Poll-waiting is recommended if the interrupt rate would be to +# high in the interrupt driven case. +# CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before +# emptying the Rx FIFO. If the SPI frequency is high and this +# value is large, then larger values of this setting may cause +# Rx FIFO overrun errors. Default: half of the Tx FIFO size (4). # CONFIG_SSI0_DISABLE=n CONFIG_SSI1_DISABLE=y CONFIG_SSI_POLLWAIT=y +#CONFIG_SSI_TXLIMIT=4 # # LM3S6918 specific serial device driver settings diff --git a/configs/eagle100/ostest/defconfig b/configs/eagle100/ostest/defconfig index c8f5ef36ac..0667030544 100644 --- a/configs/eagle100/ostest/defconfig +++ b/configs/eagle100/ostest/defconfig @@ -126,10 +126,17 @@ CONFIG_UART1_2STOP=0 # CONFIG_SSIn_DISABLE - select to disable all support for # the SSI # CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support +# Poll-waiting is recommended if the interrupt rate would be to +# high in the interrupt driven case. +# CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before +# emptying the Rx FIFO. If the SPI frequency is high and this +# value is large, then larger values of this setting may cause +# Rx FIFO overrun errors. Default: half of the Tx FIFO size (4). # CONFIG_SSI0_DISABLE=n CONFIG_SSI1_DISABLE=y CONFIG_SSI_POLLWAIT=y +#CONFIG_SSI_TXLIMIT=4 # # LM3S6918 specific serial device driver settings