diff options
Diffstat (limited to 'src/ao_dbg.c')
| -rw-r--r-- | src/ao_dbg.c | 32 |
1 files changed, 10 insertions, 22 deletions
diff --git a/src/ao_dbg.c b/src/ao_dbg.c index b218897c..d0633f92 100644 --- a/src/ao_dbg.c +++ b/src/ao_dbg.c @@ -16,19 +16,12 @@ */ #include "ao.h" - -#define DBG_CLOCK (1 << 3) -#define DBG_DATA (1 << 4) -#define DBG_RESET_N (1 << 5) - -#define DBG_CLOCK_PIN (P0_3) -#define DBG_DATA_PIN (P0_4) -#define DBG_RESET_N_PIN (P0_5) +#include "ao_pins.h" static void ao_dbg_send_bits(uint8_t msk, uint8_t val) __reentrant { - P0 = (P0 & ~msk) | (val & msk); + DBG_PORT = (DBG_PORT & ~msk) | (val & msk); _asm nop nop @@ -40,8 +33,8 @@ ao_dbg_send_byte(uint8_t byte) { __xdata uint8_t b, d; - P0 |= DBG_DATA; - P0DIR |= DBG_DATA; + DBG_PORT |= DBG_DATA; + DBG_PORT_DIR |= DBG_DATA; for (b = 0; b < 8; b++) { d = 0; if (byte & 0x80) @@ -50,7 +43,7 @@ ao_dbg_send_byte(uint8_t byte) ao_dbg_send_bits(DBG_CLOCK|DBG_DATA, DBG_CLOCK|d); ao_dbg_send_bits(DBG_CLOCK|DBG_DATA, 0 |d); } - P0DIR &= ~DBG_DATA; + DBG_PORT_DIR &= ~DBG_DATA; } uint8_t @@ -171,20 +164,15 @@ ao_dbg_read_byte(void) static void ao_dbg_set_pins(void) { - /* Disable peripheral use of P0 */ - ADCCFG = 0; - P0SEL = 0; - - - /* make P0_4 tri-state */ - P0INP = DBG_DATA; - P2INP &= ~(P2INP_PDUP0_PULL_DOWN); + /* make DBG_DATA tri-state */ + DBG_PORT_INP |= DBG_DATA; /* Raise RESET_N and CLOCK */ - P0 = DBG_RESET_N | DBG_CLOCK; + DBG_PORT |= DBG_RESET_N | DBG_CLOCK; /* RESET_N and CLOCK are outputs now */ - P0DIR = DBG_RESET_N | DBG_CLOCK; + DBG_PORT_DIR |= DBG_RESET_N | DBG_CLOCK; + DBG_PORT_DIR &= ~DBG_DATA; } static void |