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Correct USART init for stm32 autobauding

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Hello,

I had some headache trying to figure out the issue when flashing some stm32 mcu over uart [1] 

With the above changes i can now flash stm32 devices correctly.

regards,

1 : http://www.st.com/web/en/resource/technical/document/application_note/CD00264342.pdf
This commit is contained in:
Trey Marc 2014-10-27 21:26:37 +01:00
parent 09c84a4a3c
commit 8f439384a7
1 changed files with 37 additions and 41 deletions
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78
usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/Cp21xxSerialDriver.java
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@ -249,47 +249,43 @@ public class Cp21xxSerialDriver implements UsbSerialDriver {
throws IOException { throws IOException {
setBaudRate(baudRate); setBaudRate(baudRate);
int configDataBits = 0; int configDataBits = 0;
switch (dataBits) { switch (dataBits) {
case DATABITS_5: case DATABITS_5:
configDataBits |= 0x0500; configDataBits |= 0x0500;
break; break;
case DATABITS_6: case DATABITS_6:
configDataBits |= 0x0600; configDataBits |= 0x0600;
break; break;
case DATABITS_7: case DATABITS_7:
configDataBits |= 0x0700; configDataBits |= 0x0700;
break; break;
case DATABITS_8: case DATABITS_8:
configDataBits |= 0x0800; configDataBits |= 0x0800;
break; break;
default: default:
configDataBits |= 0x0800; configDataBits |= 0x0800;
break; break;
} }
setConfigSingle(SILABSER_SET_LINE_CTL_REQUEST_CODE, configDataBits);
switch (parity) {
int configParityBits = 0; // PARITY_NONE case PARITY_ODD:
switch (parity) { configDataBits |= 0x0010;
case PARITY_ODD: break;
configParityBits |= 0x0010; case PARITY_EVEN:
break; configDataBits |= 0x0020;
case PARITY_EVEN: break;
configParityBits |= 0x0020; }
break;
} switch (stopBits) {
setConfigSingle(SILABSER_SET_LINE_CTL_REQUEST_CODE, configParityBits); case STOPBITS_1:
configDataBits |= 0;
int configStopBits = 0; break;
switch (stopBits) { case STOPBITS_2:
case STOPBITS_1: configDataBits |= 2;
configStopBits |= 0; break;
break; }
case STOPBITS_2: setConfigSingle(SILABSER_SET_LINE_CTL_REQUEST_CODE, configDataBits);
configStopBits |= 2;
break;
}
setConfigSingle(SILABSER_SET_LINE_CTL_REQUEST_CODE, configStopBits);
} }
@Override @Override