electronics/lw35-upgrade
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printer:avr: Fix startup behavior if in correction mode

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Also introduce startup wait until 0xFF is received.
This commit is contained in:
Markus Koch 2020-05-10 20:43:53 +02:00
parent 0ec64e6a39
commit 323fa68222
2 changed files with 33 additions and 8 deletions
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1
ioc/kernel-driver/lw35ioc.c
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@ -294,6 +294,7 @@ static int lw35ioc_chardev_open(struct inode *inodep, struct file *filep) {
lw35ioc_reset_ioc_hw(serdev);
usleep_range(2100000, 2210000);
dev_info(&serdev->dev, "Put ioc into active mode.\n");
serdev_device_write(serdev, "\xFF", 1, 0);
priv->state = ACTIVE;
break;
case ACTIVE:

32
printer/avr/main.c
View File

@ -112,7 +112,7 @@ void hardfault() {
#define PRINTER_CONTROL_CHAR 56
#define PRINTER_NO_CHAR 128
#define ASCII_TRANSLATION_TABLE_SIZE 128 + 12
#define ASCII_TRANSLATION_TABLE_SIZE (128 + 12)
const uint8_t ascii_translation_table[ASCII_TRANSLATION_TABLE_SIZE] PROGMEM = {
PRINTER_CONTROL_CHAR,
PRINTER_CONTROL_CHAR,
@ -277,6 +277,9 @@ const uint8_t ascii_translation_table[ASCII_TRANSLATION_TABLE_SIZE] PROGMEM = {
#define PIN_CORRECTION (1 << 1)
#define PIN_ARMHAMMER (1 << 0)
/* Misc I/O */
#define MISCIO(t) t##D
#define PIN_BACKLIGHT (1 << 2)
/* Stepper drive */
@ -671,11 +674,22 @@ void move_carriage_to_far_left(uint8_t reset)
if (LIMITSWITCH) {
debug_write("[car] Clearing switch area...\r\n");
while (LIMITSWITCH) {
cnt = 32;
while (LIMITSWITCH && (cnt> 0)) {
if (block_for(TIM_CARRIAGE, STEPPER_CFG_CARRIAGE.delay)) {
STEPPER_NEXT(CARRIAGE, 1);
cnt--;
}
}
if (LIMITSWITCH && !cnt) { // We're probably in correction mode
DCMOTOR_EN;
arm_correction();
_delay_ms(1000);
DCMOTOR_STOP;
}
if (LIMITSWITCH) { // If the switch is still not released, there's some problem we can't fix from SW
hardfault();
}
for (cnt = 0; cnt < 16; cnt++) {
STEPPER_NEXT(CARRIAGE, 1);
}
@ -911,7 +925,7 @@ void printer_process()
switch (state) {
case IDLE:
if (print_buffer_rd != print_buffer_wr) { // maybe add "|| current_is_linebreak"
if (print_buffer_rd != print_buffer_wr) { // TODO: maybe add "|| current_is_linebreak"
if (!DCMOTOR_ISACTIVE) {
DCMOTOR_EN;
_delay_ms(100); /* Let the motor get up to speed */
@ -1019,7 +1033,8 @@ void printer_process()
// stepper_status_WHEEL.target_pos += 10;
// // -----------
if (stepper_status_CARRIAGE.target_pos > PRINTER_STOP_RIGHT) { // Right margin safety
if (stepper_status_CARRIAGE.target_pos > PRINTER_STOP_RIGHT ||
stepper_status_CARRIAGE.target_pos < 0) { // Margin safety
hardfault();
}
stepper_perform_movement(&stepper_status_LINEFEED, &STEPPER_CFG_LINEFEED);
@ -1274,6 +1289,10 @@ int main()
STEPPER_SET_IO(WHEEL);
STEPPER_SET_IO(LINEFEED);
/* Set up miscellaneous I/O */
MISCIO(DDR) |= PIN_BACKLIGHT;
MISCIO(PORT) |= PIN_BACKLIGHT; /* Permanently enable backlight */
/* Set up SysTick Timer */
TCCR1B = (1 << WGM12) | (1 << CS11); // f_tim = 8 MHz / 8
OCR1A = 2000 / TIMESCALE;
@ -1283,6 +1302,11 @@ int main()
sync_uart();
update_status(0);
debug_write("\n\n\r[sys] STARTING IO CONTROLLER...\r\n");
#ifndef DEBUG_BUILD
while (!((UCSRA & (1 << RXC)) && (UDR == 0xFF))); /* Wait for init command from driver */
update_status(0);
_delay_ms(250);
#endif
debug_write("[sys] Enabling interrupts.\r\n");
sei();