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EVM fixes and additions (RRG repository PRs 78-82 by @merlokk) (#776)

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pwpiwi 2019-02-06 07:50:57 +01:00 • committed by GitHub
commit 4cdd63b245
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11 changed files with 433 additions and 104 deletions
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11
armsrc/i2c.c
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@ -257,10 +257,11 @@ static void I2C_Reset_EnterBootloader(void) {
WaitMS(10);
}
// 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
static bool WaitSCL_L_300ms(void) {
volatile uint16_t delay = 310;
bool WaitSCL_L_timeout(void){
volatile uint16_t delay = 1800;
while ( delay-- ) {
// exit on SCL LOW
if (!SCL_read)
@ -272,8 +273,8 @@ static bool WaitSCL_L_300ms(void) {
}
static bool I2C_WaitForSim() {
// variable delay here.
if (!WaitSCL_L_300ms())
// wait for data from card
if (!WaitSCL_L_timeout())
return false;
// 8051 speaks with smart card.