Recently I had purchased teensy 4.1 along with PSRAM from Pimoroni.
Today I did soldered carefully PSRAM on the teensy 4.1 board. I ran the memory test program as per pjrc website and it's showing EXTMEM memory Test, 0 Mbyte.
But when I am running next example i.e. having hello world ....that one is running fine and I am able to see the output in serial monitor.
I checked my soldering and according to me looks good and there is no sorting . Can anyone please advise on this matter.
I wanted to add three pics....unable to find out how to attach them for forum members to help to understand my problem.
my source code...
extern "C" uint8_t external_psram_size;
EXTMEM char bigBuffer[1000000] = {0};
int led = 13;
void setup() {
while (!Serial) ; // wait
uint8_t size = external_psram_size;
Serial.printf("EXTMEM Memory Test, %d Mbyte\n", size);
delay(5000);
strcpy(bigBuffer, "Hello Teensy 4.1 using PSRAM!");
pinMode(led, OUTPUT);
}
void loop() {
Serial.println(bigBuffer);
digitalWrite(led, HIGH);
delay(250);
digitalWrite(led, LOW);
delay(250);
}
the result in serial monitor...
EXTMEM memory test, 0 Mbyte
Hello Teensy 4.1 using PSRAM!
Today I did soldered carefully PSRAM on the teensy 4.1 board. I ran the memory test program as per pjrc website and it's showing EXTMEM memory Test, 0 Mbyte.
But when I am running next example i.e. having hello world ....that one is running fine and I am able to see the output in serial monitor.
I checked my soldering and according to me looks good and there is no sorting . Can anyone please advise on this matter.
I wanted to add three pics....unable to find out how to attach them for forum members to help to understand my problem.
my source code...
extern "C" uint8_t external_psram_size;
EXTMEM char bigBuffer[1000000] = {0};
int led = 13;
void setup() {
while (!Serial) ; // wait
uint8_t size = external_psram_size;
Serial.printf("EXTMEM Memory Test, %d Mbyte\n", size);
delay(5000);
strcpy(bigBuffer, "Hello Teensy 4.1 using PSRAM!");
pinMode(led, OUTPUT);
}
void loop() {
Serial.println(bigBuffer);
digitalWrite(led, HIGH);
delay(250);
digitalWrite(led, LOW);
delay(250);
}
the result in serial monitor...
EXTMEM memory test, 0 Mbyte
Hello Teensy 4.1 using PSRAM!
Last edited: