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This commit is contained in:
iceman1001 2019-04-14 11:43:05 +02:00
commit d28fac3ef0
9 changed files with 175 additions and 175 deletions
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68
common/usart.c
View file

@ -62,33 +62,33 @@ inline int16_t usart_readbuffer(uint8_t *data) {
uint8_t check = 0;
inline int16_t usart_readbuffer(uint8_t *data) {
// Check if the first PDC bank is free
// Check if the first PDC bank is free
if (pUS1->US_RCR == 0) {
pUS1->US_RPR = (uint32_t)data;
pUS1->US_RCR = sizeof(UsbCommand);
pUS1->US_PTCR = AT91C_PDC_RXTEN | AT91C_PDC_TXTEN;
check = 0;
pUS1->US_PTCR = AT91C_PDC_RXTEN | AT91C_PDC_TXTEN;
check = 0;
return 2;
} else {
return 0;
}
}
void usart_readcheck(uint8_t *data,size_t len) {
if (pUS1->US_RCR<len){
if (check == 0){
StartCountUS();
check = 1;
}
//300ms
if (GetCountUS() > 300000){
pUS1->US_RPR = (uint32_t)data;
pUS1->US_RCR = len;
check = 0;
}
} else {
check = 0;
}
void usart_readcheck(uint8_t *data, size_t len) {
if (pUS1->US_RCR < len) {
if (check == 0) {
StartCountUS();
check = 1;
}
//300ms
if (GetCountUS() > 300000) {
pUS1->US_RPR = (uint32_t)data;
pUS1->US_RCR = len;
check = 0;
}
} else {
check = 0;
}
}
inline bool usart_dataavailable(void) {
@ -99,7 +99,7 @@ inline int16_t usart_readcommand(uint8_t *data) {
if (pUS1->US_RCR == 0)
return usart_readbuffer(data);
return 0;
return 0;
}
inline bool usart_commandavailable(void) {
@ -126,26 +126,26 @@ inline int16_t usart_writebuffer(uint8_t *data, size_t len) {
// transfer from device to client
inline int16_t usart_writebuffer(uint8_t *data, size_t len) {
while (pUS1->US_TCR && pUS1->US_TNCR) {};
while (pUS1->US_TCR && pUS1->US_TNCR) {};
// Check if the first PDC bank is free
if (pUS1->US_TCR == 0) {
memcpy(us_outbuf, data, len);
pUS1->US_TPR = (uint32_t)us_outbuf;
memcpy(us_outbuf, data, len);
pUS1->US_TPR = (uint32_t)us_outbuf;
pUS1->US_TCR = sizeof(us_outbuf);
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTEN;
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTEN;
}
// Check if the second PDC bank is free
else if (pUS1->US_TNCR == 0) {
memcpy(us_outbuf, data, len);
memcpy(us_outbuf, data, len);
pUS1->US_TNPR = (uint32_t)us_outbuf;
pUS1->US_TNCR = sizeof(us_outbuf);
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTEN;
}
//wait until finishing transfer
while (pUS1->US_TCR && pUS1->US_TNCR) {};
return 0;
pUS1->US_PTCR = AT91C_PDC_TXTEN | AT91C_PDC_RXTEN;
}
//wait until finishing transfer
while (pUS1->US_TCR && pUS1->US_TNCR) {};
return 0;
}
@ -200,10 +200,10 @@ void usart_init(void) {
// re-enable receiver / transmitter
pUS1->US_CR = (AT91C_US_RXEN | AT91C_US_TXEN);
// ready to receive
pUS1->US_RPR = (uint32_t)us_inbuf;
pUS1->US_RCR = 0;
pUS1->US_RNCR = 0;
pUS1->US_RCR = 0;
pUS1->US_RNCR = 0;
pUS1->US_PTCR = AT91C_PDC_RXTEN;
}

2
common/usart.h
View file

@ -13,7 +13,7 @@ int16_t usart_readbuffer(uint8_t *data);
int16_t usart_writebuffer(uint8_t *data, size_t len);
bool usart_dataavailable(void);
int16_t usart_readcommand(uint8_t *data);
void usart_readcheck(uint8_t *data,size_t len);
void usart_readcheck(uint8_t *data, size_t len);
bool usart_commandavailable(void);
#endif