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add BME280, try to work with SPI TFT display (no reaction yet)

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This commit is contained in:
Edward Emelianov
2023-05-08 01:30:34 +03:00
parent e0352dde3f
commit 16f3b31f4f
14 changed files with 187 additions and 30 deletions
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33
F3:F303/NitrogenFlooding/i2c.c
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@@ -42,7 +42,7 @@ static uint8_t I2Cbuf[256], i2cbuflen = 0; // buffer for DMA tx/rx and its len
static inline int isI2Cbusy(){
cntr = Tms;
do{
if(Tms - cntr > I2C_TIMEOUT){ USND("Timeout, DMA transfer in progress?\n"); return 1;}
if(Tms - cntr > I2C_TIMEOUT){ USND("Timeout, DMA transfer in progress?"); return 1;}
}while(I2Cbusy);
return 0;
}
@@ -103,7 +103,7 @@ static uint8_t i2c_start(uint8_t busychk){
while(I2C1->ISR & I2C_ISR_BUSY){
IWDG->KR = IWDG_REFRESH;
if(Tms - cntr > I2C_TIMEOUT){
USND("Line busy\n");
USND("Line busy");
return 0; // check busy
}}
}
@@ -111,7 +111,7 @@ static uint8_t i2c_start(uint8_t busychk){
while(I2C1->CR2 & I2C_CR2_START){
IWDG->KR = IWDG_REFRESH;
if(Tms - cntr > I2C_TIMEOUT){
USND("No start\n");
USND("No start");
return 0; // check start
}}
return 1;
@@ -143,11 +143,11 @@ static uint8_t write_i2cs(uint8_t addr, uint8_t *data, uint8_t nbytes, uint8_t s
IWDG->KR = IWDG_REFRESH;
if(I2C1->ISR & I2C_ISR_NACKF){
I2C1->ICR |= I2C_ICR_NACKCF;
//USND("NAK\n");
DBG("NAK");
return 0;
}
if(Tms - cntr > I2C_TIMEOUT){
//USND("Timeout\n");
DBG("Timeout");
return 0;
}
}
@@ -163,7 +163,10 @@ static uint8_t write_i2cs(uint8_t addr, uint8_t *data, uint8_t nbytes, uint8_t s
}
uint8_t write_i2c(uint8_t addr, uint8_t *data, uint8_t nbytes){
if(isI2Cbusy()) return 0;
if(isI2Cbusy()){
DBG("I2C busy");
return 0;
}
return write_i2cs(addr, data, nbytes, 1);
}
@@ -203,11 +206,11 @@ static uint8_t read_i2cb(uint8_t addr, uint8_t *data, uint8_t nbytes, uint8_t bu
IWDG->KR = IWDG_REFRESH;
if(I2C1->ISR & I2C_ISR_NACKF){
I2C1->ICR |= I2C_ICR_NACKCF;
//USND("NAK\n");
//DBG("NAK");
return 0;
}
if(Tms - cntr > I2C_TIMEOUT){
//USND("Timeout\n");
//DBG("Timeout");
return 0;
}
}
@@ -250,22 +253,22 @@ uint8_t read_i2c_reg16(uint8_t addr, uint16_t reg16, uint8_t *data, uint8_t nbyt
void i2c_init_scan_mode(){
i2caddr = 1; // start from 1 as 0 is a broadcast address
I2C_scan_mode = 1;
DBG("init scan");
}
// return 1 if next addr is active & return in as `addr`
// if addresses are over, return 1 and set addr to I2C_NOADDR
// if scan mode inactive, return 0 and set addr to I2C_NOADDR
int i2c_scan_next_addr(uint8_t *addr){
if(isI2Cbusy()) return 0;
if(isI2Cbusy()){
DBG("scan: busy");
return 0;
}
*addr = i2caddr;
if(i2caddr == I2C_ADDREND){
*addr = I2C_ADDREND;
I2C_scan_mode = 0;
return 0;
}
/*while(!u3txrdy);
USND("Addr: "); USND(uhex2str(i2caddr)); USND("\n");
usart3_sendbuf();*/
uint8_t byte;
if(!read_i2c((i2caddr++)<<1, &byte, 1)) return 0;
return 1;
@@ -274,10 +277,10 @@ int i2c_scan_next_addr(uint8_t *addr){
// dump I2Cbuf
void i2c_bufdudump(){
if(goterr){
USND("Last transfer ends with error!\n");
USND("Last transfer ends with error!");
goterr = 0;
}
USND("I2C buffer:\n");
USND("I2C buffer:");
hexdump(USB_sendstr, I2Cbuf, i2cbuflen);
}