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Adding support for the ASIC second counter register and sleeping

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logicog
2025-06-06 20:49:15 +02:00
parent a0a5328ecd
commit c5d7628ea0
1 changed files with 52 additions and 3 deletions
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rtlplayground.c
+52 -3
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@@ -33,6 +33,7 @@
#define RTL837X_REG_LED_MODE 0x6520 #define RTL837X_REG_LED_MODE 0x6520
#define RTL837X_REG_SMI_CTRL 0x6454 #define RTL837X_REG_SMI_CTRL 0x6454
#define RTL837X_REG_RESET 0x0024 #define RTL837X_REG_RESET 0x0024
#define RTL837X_REG_SEC_COUNTER 0x06f4
// Blink rate is defined by setAsicRegBits(0x6520,0xe00000,rate); // Blink rate is defined by setAsicRegBits(0x6520,0xe00000,rate);
#define SFR_EXEC_READ_REG 1 #define SFR_EXEC_READ_REG 1
@@ -40,7 +41,9 @@
#define SFR_EXEC_READ_SMI 9 #define SFR_EXEC_READ_SMI 9
#define SFR_EXEC_WRITE_SMI 11 #define SFR_EXEC_WRITE_SMI 11
__xdata unsigned short ticks; volatile __xdata unsigned long ticks;
volatile __xdata unsigned char sec_counter;
__xdata unsigned long sleep_until;
#define N_WORDS 10 #define N_WORDS 10
__xdata signed char cmd_words_b[N_WORDS]; __xdata signed char cmd_words_b[N_WORDS];
@@ -68,6 +71,7 @@ void isr_timer0(void) __interrupt(1)
TH0 = (0x10000 - (CLOCK_HZ / SYS_TICK_HZ / 32)) >> 8; TH0 = (0x10000 - (CLOCK_HZ / SYS_TICK_HZ / 32)) >> 8;
TL0 = (0x10000 - (CLOCK_HZ / SYS_TICK_HZ / 32)) % 0xff; TL0 = (0x10000 - (CLOCK_HZ / SYS_TICK_HZ / 32)) % 0xff;
ticks++; ticks++;
sec_counter++;
/* /*
SFR_DATA_24 = 0x00; SFR_DATA_24 = 0x00;
@@ -119,6 +123,14 @@ void print_short(unsigned short a)
} }
void print_long(unsigned long a)
{
print_string("0x");
for (signed char i = 28; i >= 0; i -= 4) {
write_char(hex[(a >> i) & 0xf]);
}
}
void print_byte(unsigned char a) void print_byte(unsigned char a)
{ {
write_char(hex[(a >> 4) & 0xf]); write_char(hex[(a >> 4) & 0xf]);
@@ -277,6 +289,43 @@ unsigned char read_flash(unsigned char bank, __code unsigned char *addr)
} }
void idle(void)
{
PCON |= 1;
if (sec_counter >= 60) {
sec_counter -= 60;
reg_read(RTL837X_REG_SEC_COUNTER);
unsigned char v = SFR_DATA_0;
v++;
SFR_DATA_0 = v;
if (!v) {
v = SFR_DATA_8;
v++;
SFR_DATA_8 = v;
if (!v) {
v = SFR_DATA_16;
v++;
SFR_DATA_16 = v;
if (!v) {
v = SFR_DATA_24;
v++;
SFR_DATA_24 = v;
}
}
}
reg_write(RTL837X_REG_SEC_COUNTER);
}
}
// Sleep the given number of ticks
void sleep(unsigned short t)
{
sleep_until = ticks + t;
while (sleep_until <= ticks)
idle();
}
void reset_chip(void) void reset_chip(void)
{ {
SFR_DATA_24 = 0x00; SFR_DATA_24 = 0x00;
@@ -823,7 +872,7 @@ void bootloader(void)
write_char(sbuf[l]); write_char(sbuf[l]);
// Check whether there is a full line: // Check whether there is a full line:
if (sbuf[l] == '\n' || sbuf[l] == '\r') { if (sbuf[l] == '\n' || sbuf[l] == '\r') {
print_short(ticks); print_long(ticks);
// Print line and parse command into words // Print line and parse command into words
print_string("\r\n CMD: "); print_string("\r\n CMD: ");
is_white = 1; is_white = 1;
@@ -891,6 +940,6 @@ void bootloader(void)
l++; l++;
l &= (SBUF_SIZE - 1); l &= (SBUF_SIZE - 1);
} }
PCON |= 1; // Enter Idle mode until interrupt occurs idle(); // Enter Idle mode until interrupt occurs
} }
} }