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authorFergus Noble2011-09-12 18:25:11 -0700
committerStephen Caudle2011-10-12 22:13:01 -0400
commit424b094ce83e6c9ae577cef22e86054cc2d945a5 (patch)
treee5f3059c6a8a8872618ca7512b013ea18682385a /lib/stm32/usart.c
parentcf8171e469ff726701bfdc5d14a169c87d1e5b54 (diff)
Renaming lib code for stm32 f1 series.
Diffstat (limited to 'lib/stm32/usart.c')
-rw-r--r--lib/stm32/usart.c131
1 files changed, 0 insertions, 131 deletions
diff --git a/lib/stm32/usart.c b/lib/stm32/usart.c
deleted file mode 100644
index ead0ef7..0000000
--- a/lib/stm32/usart.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * This file is part of the libopencm3 project.
- *
- * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <libopencm3/stm32/rcc.h>
-
-#include <libopencm3/stm32/usart.h>
-
-void usart_set_baudrate(u32 usart, u32 baud)
-{
- u32 clock = rcc_ppre1_frequency;
-
- if (usart == USART1) {
- clock = rcc_ppre2_frequency;
- }
-
- /* yes it is as simple as that. The reference manual is
- * talking about factional calculation but it seems to be only
- * marketting bable to sound awesome. It is nothing else but a
- * simple divider to generate the correct baudrate. >_< If I
- * am wrong feel free to correct me on that. :) (esden)
- */
- USART_BRR(usart) = clock/baud;
-}
-
-void usart_set_databits(u32 usart, u32 bits)
-{
- if (bits == 8)
- USART_CR1(usart) &= ~USART_CR1_M; /* 8 data bits */
- else
- USART_CR1(usart) |= USART_CR1_M; /* 9 data bits */
-}
-
-void usart_set_stopbits(u32 usart, u32 stopbits)
-{
- u32 reg32;
-
- reg32 = USART_CR2(usart);
- reg32 = (reg32 & ~USART_CR2_STOPBITS_MASK) | stopbits;
- USART_CR2(usart) = reg32;
-}
-
-void usart_set_parity(u32 usart, u32 parity)
-{
- u32 reg32;
-
- reg32 = USART_CR1(usart);
- reg32 = (reg32 & ~USART_PARITY_MASK) | parity;
- USART_CR1(usart) = reg32;
-}
-
-void usart_set_mode(u32 usart, u32 mode)
-{
- u32 reg32;
-
- reg32 = USART_CR1(usart);
- reg32 = (reg32 & ~USART_MODE_MASK) | mode;
- USART_CR1(usart) = reg32;
-}
-
-void usart_set_flow_control(u32 usart, u32 flowcontrol)
-{
- u32 reg32;
-
- reg32 = USART_CR3(usart);
- reg32 = (reg32 & ~USART_FLOWCONTROL_MASK) | flowcontrol;
- USART_CR3(usart) = reg32;
-}
-
-void usart_enable(u32 usart)
-{
- USART_CR1(usart) |= USART_CR1_UE;
-}
-
-void usart_disable(u32 usart)
-{
- USART_CR1(usart) &= ~USART_CR1_UE;
-}
-
-void usart_send(u32 usart, u16 data)
-{
- /* Send data. */
- USART_DR(usart) = (data & USART_DR_MASK);
-}
-
-u16 usart_recv(u32 usart)
-{
- /* Receive data. */
- return USART_DR(usart) & USART_DR_MASK;
-}
-
-void usart_wait_send_ready(u32 usart)
-{
- /* Wait until the data has been transferred into the shift register. */
- while ((USART_SR(usart) & USART_SR_TXE) == 0);
-}
-
-void usart_wait_recv_ready(u32 usart)
-{
- /* Wait until the data is ready to be received. */
- while ((USART_SR(usart) & USART_SR_RXNE) == 0);
-}
-
-void usart_send_blocking(u32 usart, u16 data)
-{
- usart_send(usart, data);
-
- usart_wait_send_ready(usart);
-}
-
-u16 usart_recv_blocking(u32 usart)
-{
- usart_wait_recv_ready(usart);
-
- return usart_recv(usart);
-}