From b10d87fabd0f1b1382cb99444d37c7840af97c2b Mon Sep 17 00:00:00 2001
From: ddebernardde <diego.debernard@student.uclouvain.be>
Date: Wed, 16 Nov 2022 00:40:20 +0100
Subject: [PATCH] spi is caca
---
Makefile | 8 +++++++-
spi.cpp | 19 +++++++++++++------
2 files changed, 20 insertions(+), 7 deletions(-)
diff --git a/Makefile b/Makefile
index a37cc12..f00e7fa 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,9 @@ i2c : compile_LED
uart : compile_UART
sudo ./uart
+spi : compile_spi
+ sudo ./spi
+
# compilations
compile_switch :
g++ -o switch switch.cpp -lwiringPi
@@ -25,6 +28,9 @@ compile_LED :
compile_UART :
g++ -o uart uart.cpp -lwiringPi
+compile_spi :
+ g++ -o spi spi.cpp -l wiringPi
+
.PHONY : clean
clean :
- rm -rf switch motor led i2c uart
+ rm -rf switch motor led i2c uart spi
diff --git a/spi.cpp b/spi.cpp
index ede3319..36d0168 100644
--- a/spi.cpp
+++ b/spi.cpp
@@ -20,12 +20,19 @@ int main(int argc, char const *argv[])
exit(EXIT_FAILURE);
}
- buff[0] = 0x40;
- buff[1] = 0x01;
-
- result = wiringPiSPIDataRW(CHANNEL_CAN, buff, 2);
-
-
+ int reg = 0x42;
+
+ int GPIO[] = {0b00000001, 0b00000010, 0b00001000, 0b00010000};
+ buff[0] = reg;
+ for (int i = 0; i < 4; i++) {
+ buff[1] = GPIO[i];
+ printf("buff %i : %x %x\n",i, buff[0], buff[1]);
+ result = wiringPiSPIDataRW(CHANNEL_CAN, buff, 2);
+ printf("buff %i : %x %x\n",i, buff[0], buff[1]);
+ buff[0] = reg;
+ delay(1500);
+ }
+
return 0;
}
--
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