Cool_Tools/exa-io
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Implement coin meter timeout (min/max pulse length). Fix meter pinout.

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This commit is contained in:
Kevin Nakamura 2022-12-01 04:48:48 +09:00 committed by Thomas Daede
parent 81ae6dfd11
commit 9cc85b8020
1 changed files with 18 additions and 4 deletions
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22
firmware/td-io.c
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@ -17,8 +17,8 @@ const uint PIN_SR_DATA = 20;
const uint PIN_SR_CLK = 18;
const uint PIN_SR_SH = 21;
const uint PIN_METER1 = 8;
const uint PIN_METER2 = 7;
const uint PIN_METER1 = 7;
const uint PIN_METER2 = 8;
const uint PIN_LOCKOUT1 = 10;
const uint PIN_LOCKOUT2 = 9;
@ -48,6 +48,13 @@ int16_t coin_count_p2 = 0;
uint8_t prev_coin_p1 = 0;
uint8_t prev_coin_p2 = 0;
/* Coins are polled between 12ms and 20ms as a min and max time. This value was picked to guarantee
* a pulse of at least 120ms. The lowest rated coin meters are 10 counts/second. In the case of a
* coin jam, the maximum pulse will be 200ms. */
const uint8_t METER_TIMEOUT = 11;
uint8_t meter_timeout_p1 = 0;
uint8_t meter_timeout_p2 = 0;
#define SR_P1_3 7
#define SR_P2_3 6
#define SR_P1_4 5
@ -176,17 +183,24 @@ void process_coin(uint32_t switches) {
if (coin_count_p1 > 16383) {
coin_count_p1 = 16383;
}
meter_timeout_p1 = METER_TIMEOUT;
}
if ((switches >> SR_C2 & 1) && !prev_coin_p2) {
coin_count_p2++;
if (coin_count_p2 > 16383) {
coin_count_p2 = 16383;
}
meter_timeout_p2 = METER_TIMEOUT;
}
prev_coin_p1 = switches >> SR_C1 & 1;
prev_coin_p2 = switches >> SR_C2 & 1;
gpio_put(PIN_METER1, prev_coin_p1);
gpio_put(PIN_METER2, prev_coin_p2);
if (meter_timeout_p1) meter_timeout_p1--;
gpio_put(PIN_METER1, meter_timeout_p1 > 0);
if (meter_timeout_p2) meter_timeout_p2--;
gpio_put(PIN_METER2, meter_timeout_p2 > 0);
gpio_put(PIN_LOCKOUT1, coin_count_p1 >= 16383);
gpio_put(PIN_LOCKOUT2, coin_count_p2 >= 16383);
}