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