max/tmk_keyboard
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ibmpc: Fix debug print and wait time

Browse source
This commit is contained in:
tmk 2020-01-24 22:39:58 +09:00
parent 83ebf5212d
commit 4588ae8dac
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
tmk_core/protocol/ibmpc.c
View file

@ -175,9 +175,8 @@ int16_t ibmpc_host_recv(void)
}
}
if (ret != 0xFF) {
dprintf("r%02X(%04X) ", ret, recv_data);
}
if (ret != 0xFF) dprintf("r%02X ", ret);
if (recv_data != 0xFFFF) dprintf("b%04X ", recv_data);
return ((ret != 0xFF) ? ret : -1);
}
@ -206,13 +205,14 @@ ISR(IBMPC_INT_VECT)
{
uint8_t dbit;
dbit = IBMPC_DATA_PIN&(1<<IBMPC_DATA_BIT);
PINB|=0x01;
isr_data = isr_data>>1;
if (dbit) isr_data |= 0x8000;
// isr_data: state of receiving data from keyboard
// 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
// -----------------------------------------------------
// Initial: *1 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0
// Initial: *1 0 0 0 0 0 0 0 | 0 0 0 0 0 0 0 0 MSB sentinel
// XT IBM: b7 b6 b5 b4 b3 b2 b1 b0 | s1 s0 *1 0 0 0 0 0 after receiving **
// XT Clone: b7 b6 b5 b4 b3 b2 b1 b0 | s1 *1 0 0 0 0 0 0 after receiving
// AT: st pr b7 b6 b5 b4 b3 b2 | b1 b0 s0 *1 0 0 0 0 after receiving
@ -253,7 +253,7 @@ ISR(IBMPC_INT_VECT)
break;
case 0b10100000:
{
uint8_t us = 150;
uint8_t us = 100;
// wait for rising and falling edge of AT stop bit
while (!(IBMPC_CLOCK_PIN&(1<<IBMPC_CLOCK_BIT)) && us) { wait_us(1); us--; }
while ( IBMPC_CLOCK_PIN&(1<<IBMPC_CLOCK_BIT) && us) { wait_us(1); us--; }