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inc timeout of card's response

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merlokk
2019-01-10 17:06:59 +02:00
parent 607bef7ffd
commit 170cf7c67a
1 changed files with 6 additions and 4 deletions
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10
common/i2c.c
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@@ -161,10 +161,11 @@ bool WaitSCL_L(void) {
return WaitSCL_L_delay(15000); return WaitSCL_L_delay(15000);
} }
// Wait max 300ms or until SCL goes LOW. // Wait max 1800ms or until SCL goes LOW.
// It timeout reading response from card
// Which ever comes first // Which ever comes first
bool WaitSCL_L_300ms(void){ bool WaitSCL_L_timeout(void){
volatile uint16_t delay = 310; volatile uint16_t delay = 1800;
while ( delay-- ) { while ( delay-- ) {
// exit on SCL LOW // exit on SCL LOW
if (!SCL_read) if (!SCL_read)
@@ -193,7 +194,8 @@ bool I2C_Start(void) {
bool I2C_WaitForSim() { bool I2C_WaitForSim() {
if (!WaitSCL_L_300ms()) // wait for data from card
if (!WaitSCL_L_timeout())
return false; return false;
// 8051 speaks with smart card. // 8051 speaks with smart card.