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authorVegard Storheil Eriksen <zyp@jvnv.net>2015-01-12 08:59:32 +0100
committerVegard Storheil Eriksen <zyp@jvnv.net>2015-01-12 08:59:42 +0100
commit7b4ba03bc45dfed09759b9d0f99f6ddfde51ac43 (patch)
tree65b30289dc3d51594f3ee68ef6ed2c2c1b7bb3b0 /usart
parentebddcef73dbe544718ea5d607072fad36e1809d4 (diff)
Added F3 USART support.
Diffstat (limited to 'usart')
-rw-r--r--usart/usart.cpp7
-rw-r--r--usart/usart.h44
2 files changed, 16 insertions, 35 deletions
diff --git a/usart/usart.cpp b/usart/usart.cpp
deleted file mode 100644
index 61fe393..0000000
--- a/usart/usart.cpp
+++ /dev/null
@@ -1,7 +0,0 @@
-#include "usart.h"
-
-template<>
-void interrupt<Interrupt::USART1>() {
- USART1.recv();
- //GPIOB.ODR ^= 1 << 1;
-}
diff --git a/usart/usart.h b/usart/usart.h
index 567ccd1..c075b9b 100644
--- a/usart/usart.h
+++ b/usart/usart.h
@@ -5,6 +5,7 @@
#include <interrupt/interrupt.h>
#include <os/thread.h>
+#if defined(STM32F1) || defined(STM32F4)
struct USART_reg_t {
volatile uint32_t SR;
volatile uint32_t DR;
@@ -14,6 +15,21 @@ struct USART_reg_t {
volatile uint32_t CR3;
volatile uint32_t GTPR;
};
+#elif defined(STM32F3)
+struct USART_reg_t {
+ volatile uint32_t CR1;
+ volatile uint32_t CR2;
+ volatile uint32_t CR3;
+ volatile uint32_t BRR;
+ volatile uint32_t GTPR;
+ volatile uint32_t RTOR;
+ volatile uint32_t RQR;
+ volatile uint32_t ISR;
+ volatile uint32_t ICR;
+ volatile uint32_t RDR;
+ volatile uint32_t TDR;
+};
+#endif
class USART_t {
public:
@@ -25,22 +41,6 @@ class USART_t {
inline void set_baudrate(uint32_t baudrate) {
reg.BRR = clk / baudrate;
}
-
- inline void enable() {
- reg.CR1 = 0x202c;
- }
-
- inline void send(uint8_t data) {
- while(!(reg.SR & 0x80)) {
- Thread::yield();
- } // Wait for TXE.
-
- reg.DR = data;
- }
-
- inline uint8_t recv() {
- return reg.DR;
- }
};
#if defined(STM32F1) || defined(STM32F3)
@@ -53,16 +53,4 @@ static USART_t USART2(0x40004400, 42000000);
static USART_t USART3(0x40004800, 42000000);
#endif
-inline void usart_enable() {
- RCC.enable(RCC.USART1);
- USART1.set_baudrate(115200);
- USART1.enable();
-
- //Interrupt::enable(Interrupt::USART1);
-}
-
-inline void usart_send(uint8_t data) {
- USART1.send(data);
-}
-
#endif