diff options
| author | Christian Cunningham <cc@localhost> | 2021-12-04 17:09:22 -0700 |
|---|---|---|
| committer | Christian Cunningham <cc@localhost> | 2021-12-04 17:09:22 -0700 |
| commit | 1c6cd8e1ea53275cc44b2a0ee5a8448cbc4a3f0d (patch) | |
| tree | 8ba9eed6acebbd0940898e5c46b35caed7e03792 /src/drivers | |
| parent | 0ee2aaaa26441e37ed27e6c83cf9b65202596a4e (diff) | |
Restructured project
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/uart.a.h | 8 | ||||
| -rw-r--r-- | src/drivers/uart.c | 22 | ||||
| -rw-r--r-- | src/drivers/uart.h | 7 |
3 files changed, 37 insertions, 0 deletions
diff --git a/src/drivers/uart.a.h b/src/drivers/uart.a.h new file mode 100644 index 0000000..d4bf199 --- /dev/null +++ b/src/drivers/uart.a.h @@ -0,0 +1,8 @@ +#ifndef UART_AH +#define UART_AH + +extern void uart_char(unsigned char c); +extern void uart_hex(unsigned long data); +extern void uart_string(char* message); + +#endif diff --git a/src/drivers/uart.c b/src/drivers/uart.c new file mode 100644 index 0000000..f7f15c2 --- /dev/null +++ b/src/drivers/uart.c @@ -0,0 +1,22 @@ +#include "uart.a.h" + +void uart_hexn(unsigned long c_val) { + uart_hex(c_val); + uart_char(0x0a); +} + +void uart_10(unsigned long val) { + unsigned long t = val; + unsigned long c; + char buffer[11] = "0000000000\0"; + char* dptr = buffer + 9; + for(int i = 0; i <= 10; i++) { + c = t%10; + *dptr = 0x30 + (c&0xF); + t /= 10; + if (t==0) + break; + dptr -= 1; + } + uart_string(dptr); +} diff --git a/src/drivers/uart.h b/src/drivers/uart.h new file mode 100644 index 0000000..c78398b --- /dev/null +++ b/src/drivers/uart.h @@ -0,0 +1,7 @@ +#ifndef UART_H +#define UART_H + +void uart_hexn(unsigned long); +void uart_10(unsigned long); + +#endif |