From dff9e162855eaafe4aa6e2d6d9f4ad48a0ac85a5 Mon Sep 17 00:00:00 2001 From: Giovanni Di Sirio Date: Fri, 5 Jan 2018 10:08:52 +0000 Subject: SPI driver works, probably optimizations are possible. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11226 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32/multi/SPI/main.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'testhal/STM32/multi/SPI/main.c') diff --git a/testhal/STM32/multi/SPI/main.c b/testhal/STM32/multi/SPI/main.c index fd1d74250..f41e17fc0 100755 --- a/testhal/STM32/multi/SPI/main.c +++ b/testhal/STM32/multi/SPI/main.c @@ -41,6 +41,8 @@ static THD_FUNCTION(spi_thread_1, p) { spiExchange(&PORTAB_SPI1, 512, txbuf, rxbuf); /* Atomic transfer operations. */ spiUnselect(&PORTAB_SPI1); /* Slave Select de-assertion. */ + dmaBufferInvalidate(&txbuf[0], /* Cache invalidation over the */ + sizeof txbuf); /* buffer. */ spiReleaseBus(&PORTAB_SPI1); /* Ownership release. */ } } @@ -61,6 +63,8 @@ static THD_FUNCTION(spi_thread_2, p) { spiExchange(&PORTAB_SPI1, 512, txbuf, rxbuf); /* Atomic transfer operations. */ spiUnselect(&PORTAB_SPI1); /* Slave Select de-assertion. */ + dmaBufferInvalidate(&txbuf[0], /* Cache invalidation over the */ + sizeof txbuf); /* buffer. */ spiReleaseBus(&PORTAB_SPI1); /* Ownership release. */ } } @@ -107,6 +111,7 @@ int main(void) { */ for (i = 0; i < sizeof(txbuf); i++) txbuf[i] = (uint8_t)i; + dmaBufferFlush(&txbuf[0], sizeof txbuf); /* * Starting the transmitter and receiver threads. -- cgit v1.2.3