Cool_Tools/exa-io
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Use normal JVS turnaround delay when on default comm speed.

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This commit is contained in:
Thomas Daede 2023-10-10 01:06:18 -07:00
parent dbfdb38a8f
commit 0883517e09
1 changed files with 7 additions and 0 deletions
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7
firmware/td-io.c
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@ -49,6 +49,8 @@ int16_t coin_count_p1 = 0;
int16_t coin_count_p2 = 0;
uint8_t prev_coin_p1 = 0;
uint8_t prev_coin_p2 = 0;
// current JVS comm method
uint8_t jvs_comm_method = 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
@ -130,6 +132,10 @@ void jvs_putc(uint8_t c) {
void start_transmit() {
gpio_put(PIN_JVS_RE, 1); // disable receive
if (jvs_comm_method == 0) {
// un-upgraded jvs needs at least 100us here
busy_wait_us_32(200); // 200us min for exa compat
}
gpio_put(PIN_JVS_DE, 1); // enable transmitter
}
@ -336,6 +342,7 @@ int main() {
if (method_code < (sizeof(JVS_COMM_SPEEDS)/sizeof(JVS_COMM_SPEEDS[0]))) {
uart_init(uart0, JVS_COMM_SPEEDS[method_code]);
jvs_comm_method = method_code;
}
else {
printf("incompatible JVS Comm. method!\n");