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Initial move of USART code to common, still needs some work.

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This commit is contained in:
Fergus Noble 2011-09-22 13:52:43 -07:00
parent 551d069ed3
commit 508e18b26b
2 changed files with 6 additions and 8 deletions
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2
include/libopencm3/stm32/usart.h
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@ -294,7 +294,7 @@
/* --- Function prototypes ------------------------------------------------- */
void usart_set_baudrate(u32 usart, u32 baud);
void usart_set_baudrate(u32 usart, u32 baud, u32 clock);
void usart_set_databits(u32 usart, u32 bits);
void usart_set_stopbits(u32 usart, u32 stopbits);
void usart_set_parity(u32 usart, u32 parity);

12
lib/stm32f1/usart.c → lib/stm32_common/usart.c
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@ -17,17 +17,15 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/f1/rcc.h>
#include <libopencm3/stm32/usart.h>
void usart_set_baudrate(u32 usart, u32 baud)
void usart_set_baudrate(u32 usart, u32 baud, u32 clock)
{
u32 clock = rcc_ppre1_frequency;
//u32 clock = rcc_ppre1_frequency;
if (usart == USART1) {
clock = rcc_ppre2_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